Trial Outcomes & Findings for Dendritic Cell/Myeloma Fusion Vaccine for Multiple Myeloma (BMT CTN 1401) (NCT NCT02728102)

NCT ID: NCT02728102

Last Updated: 2024-05-07

Results Overview

The primary objective of this randomized trial is to compare the proportion of patients alive and in complete response (CR or sCR) at one year post transplant between patients receiving DC/myeloma vaccine/GM-CSF with lenalidomide maintenance therapy to those receiving lenalidomide maintenance therapy with or without GM-CSF. Complete Response (CR) is defined to require all the followings: Absence of the original monoclonal paraprotein in serum and urine by routine electrophoresis and by immunofixation; Less than 5% plasma cells in a bone marrow aspirate and also on trephine bone biopsy, if biopsy is performed; No increase in size or number of lytic bone lesions on radiological investigations; Disappearance of soft tissue plasmacytomas. Stringent Complete Response (sCR) is defined to require all the followings in addition to CR: Normal free light chain ratio (FLC); Absence of clonal cells in bone marrow by immunohistochemistry or immunofluorescence.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

203 participants

Primary outcome timeframe

1 year

Results posted on

2024-05-07

Participant Flow

The study opened to accrual on July 25, 2016 and closed to accrual on October 12, 2018 with 203 participants enrolled from 18 participating centers. The final study database lock was done September 9, 2021.

Sixty-three participants dropped out of the study prior to randomization and 140 participants received a transplant and proceeded to randomization. The reasons for dropout include insufficient tumor cells collected (n=13), withdrew consent from study (n=12), ineligible to be randomized (n=8), disease progression prior to randomization (n=6), refused or did not make it to transplantation (n=10), physician decision (n=7), manufacturing failure (n=4), lost to follow up (n=2), and insurance (n=1).

Participant milestones

Participant milestones
Measure
Lenalidomide, Vaccine, and GM-CSF
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide and GM-CSF
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Overall Study
STARTED
68
37
35
Overall Study
COMPLETED
61
33
30
Overall Study
NOT COMPLETED
7
4
5

Reasons for withdrawal

Reasons for withdrawal
Measure
Lenalidomide, Vaccine, and GM-CSF
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide and GM-CSF
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Overall Study
Death
3
0
1
Overall Study
Withdrawal by Subject
0
2
3
Overall Study
Physician Decision
1
1
0
Overall Study
Investigational study drug permanently discontinued
3
1
0
Overall Study
Covid
0
0
1

Baseline Characteristics

Dendritic Cell/Myeloma Fusion Vaccine for Multiple Myeloma (BMT CTN 1401)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Total
n=140 Participants
Total of all reporting groups
Maintenance Lenalidomide
n=35 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide and GM-CSF
n=37 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Age, Continuous
60.0 years
n=4 Participants
59.1 years
n=5 Participants
59.3 years
n=5 Participants
62.3 years
n=7 Participants
Sex: Female, Male
Female
63 Participants
n=4 Participants
18 Participants
n=5 Participants
27 Participants
n=5 Participants
18 Participants
n=7 Participants
Sex: Female, Male
Male
77 Participants
n=4 Participants
17 Participants
n=5 Participants
41 Participants
n=5 Participants
19 Participants
n=7 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
11 Participants
n=4 Participants
4 Participants
n=5 Participants
4 Participants
n=5 Participants
3 Participants
n=7 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
124 Participants
n=4 Participants
30 Participants
n=5 Participants
61 Participants
n=5 Participants
33 Participants
n=7 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
5 Participants
n=4 Participants
1 Participants
n=5 Participants
3 Participants
n=5 Participants
1 Participants
n=7 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=4 Participants
0 Participants
n=5 Participants
1 Participants
n=5 Participants
0 Participants
n=7 Participants
Race (NIH/OMB)
Asian
4 Participants
n=4 Participants
0 Participants
n=5 Participants
2 Participants
n=5 Participants
2 Participants
n=7 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=4 Participants
0 Participants
n=5 Participants
0 Participants
n=5 Participants
0 Participants
n=7 Participants
Race (NIH/OMB)
Black or African American
15 Participants
n=4 Participants
5 Participants
n=5 Participants
8 Participants
n=5 Participants
2 Participants
n=7 Participants
Race (NIH/OMB)
White
112 Participants
n=4 Participants
28 Participants
n=5 Participants
54 Participants
n=5 Participants
30 Participants
n=7 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=4 Participants
0 Participants
n=5 Participants
0 Participants
n=5 Participants
0 Participants
n=7 Participants
Race (NIH/OMB)
Unknown or Not Reported
8 Participants
n=4 Participants
2 Participants
n=5 Participants
3 Participants
n=5 Participants
3 Participants
n=7 Participants
Karnofsky Performance Score (KPS)
100
32 Participants
n=4 Participants
9 Participants
n=5 Participants
16 Participants
n=5 Participants
7 Participants
n=7 Participants
Karnofsky Performance Score (KPS)
90
53 Participants
n=4 Participants
14 Participants
n=5 Participants
29 Participants
n=5 Participants
10 Participants
n=7 Participants
Karnofsky Performance Score (KPS)
80
41 Participants
n=4 Participants
9 Participants
n=5 Participants
17 Participants
n=5 Participants
15 Participants
n=7 Participants
Karnofsky Performance Score (KPS)
70
14 Participants
n=4 Participants
3 Participants
n=5 Participants
6 Participants
n=5 Participants
5 Participants
n=7 Participants
Disease Response at Randomization
Stringent Complete Response (sCR)
21 Participants
n=4 Participants
4 Participants
n=5 Participants
11 Participants
n=5 Participants
6 Participants
n=7 Participants
Disease Response at Randomization
Complete Response (CR)
29 Participants
n=4 Participants
9 Participants
n=5 Participants
11 Participants
n=5 Participants
9 Participants
n=7 Participants
Disease Response at Randomization
Very Good Partial Response (VGPR)
69 Participants
n=4 Participants
17 Participants
n=5 Participants
37 Participants
n=5 Participants
15 Participants
n=7 Participants
Disease Response at Randomization
Partial Response (PR)
21 Participants
n=4 Participants
5 Participants
n=5 Participants
9 Participants
n=5 Participants
7 Participants
n=7 Participants
Disease Response at Randomization
Stable Response
0 Participants
n=4 Participants
0 Participants
n=5 Participants
0 Participants
n=5 Participants
0 Participants
n=7 Participants

PRIMARY outcome

Timeframe: 1 year

Population: The primary analysis population includes all the randomized participants. Protocol defines primary analysis is to compare participants receiving vaccine vs those without vaccine. So no vaccine arms with or without GM-CSF are combined. Four participants withdrew consent to all study procedures before 1-year post-transplant. Of these, 2 cases on the Lenalidomide/GM-CSF arm and 2 cases on the Lenalidomide Alone arm. These participants were not evaluable for the primary endpoint and ERC confirmed.

The primary objective of this randomized trial is to compare the proportion of patients alive and in complete response (CR or sCR) at one year post transplant between patients receiving DC/myeloma vaccine/GM-CSF with lenalidomide maintenance therapy to those receiving lenalidomide maintenance therapy with or without GM-CSF. Complete Response (CR) is defined to require all the followings: Absence of the original monoclonal paraprotein in serum and urine by routine electrophoresis and by immunofixation; Less than 5% plasma cells in a bone marrow aspirate and also on trephine bone biopsy, if biopsy is performed; No increase in size or number of lytic bone lesions on radiological investigations; Disappearance of soft tissue plasmacytomas. Stringent Complete Response (sCR) is defined to require all the followings in addition to CR: Normal free light chain ratio (FLC); Absence of clonal cells in bone marrow by immunohistochemistry or immunofluorescence.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Percentage of Participants With 1-year Response Rate of CR/sCR
52.9 percentage of participants
Interval 44.5 to 61.3
50.0 percentage of participants
Interval 41.6 to 58.4

SECONDARY outcome

Timeframe: 6 months, 1 year, and 2 years post-transplant and at Cycles 3(Day 57), 6(Day 141), 9(Day 225), 12(Day 309), 15 (Day 393), 18(Day 477), 21(Day 561) and 24(Day 654) of maintenance therapy

Population: Analysis Population includes transplanted participants.

A participant's disease status is evaluated based on the International Uniform Response Criteria per protocol. Before disease progression (PD), all disease classifications including stringent complete response (sCR), complete response (CR), very good partial remission (VGPR), partial response (PR), stable disease (SD) are relative to participant's disease status at study entry. Disease status is 'Not Evaluable' when disease assessment is not required, or disease status is missing.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=37 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
n=35 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Participants Response to Treatment
Disease Status at 6 Months · Stringent Complete Response (sCR)
12 Participants
9 Participants
8 Participants
Participants Response to Treatment
Disease Status at 6 Months · Complete Response (CR)
17 Participants
8 Participants
10 Participants
Participants Response to Treatment
Disease Status at 6 Months · Very Good Partial Remission (VGPR)
28 Participants
12 Participants
13 Participants
Participants Response to Treatment
Disease Status at 6 Months · Partial Response (PR)
5 Participants
5 Participants
2 Participants
Participants Response to Treatment
Disease Status at 6 Months · Stable Disease (SD)
2 Participants
1 Participants
0 Participants
Participants Response to Treatment
Disease Status at 6 Months · Progression (PD)
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at 6 Months · Dead
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at 6 Months · Not Evaluable
4 Participants
2 Participants
2 Participants
Participants Response to Treatment
Disease Status at 12 Months · Stringent Complete Response (sCR)
18 Participants
8 Participants
9 Participants
Participants Response to Treatment
Disease Status at 12 Months · Complete Response (CR)
18 Participants
8 Participants
9 Participants
Participants Response to Treatment
Disease Status at 12 Months · Very Good Partial Remission (VGPR)
22 Participants
12 Participants
10 Participants
Participants Response to Treatment
Disease Status at 12 Months · Partial Response (PR)
4 Participants
7 Participants
3 Participants
Participants Response to Treatment
Disease Status at 12 Months · Stable Disease (SD)
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at 12 Months · Progression (PD)
5 Participants
0 Participants
2 Participants
Participants Response to Treatment
Disease Status at 12 Months · Dead
1 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at 12 Months · Not Evaluable
0 Participants
2 Participants
2 Participants
Participants Response to Treatment
Disease Status at 24 Months · Stringent Complete Response (sCR)
17 Participants
7 Participants
9 Participants
Participants Response to Treatment
Disease Status at 24 Months · Complete Response (CR)
13 Participants
6 Participants
10 Participants
Participants Response to Treatment
Disease Status at 24 Months · Very Good Partial Remission (VGPR)
15 Participants
15 Participants
3 Participants
Participants Response to Treatment
Disease Status at 24 Months · Partial Response (PR)
6 Participants
4 Participants
2 Participants
Participants Response to Treatment
Disease Status at 24 Months · Stable Disease (SD)
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at 24 Months · Progression (PD)
2 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at 24 Months · Dead
2 Participants
0 Participants
1 Participants
Participants Response to Treatment
Disease Status at 24 Months · Not Evaluable
13 Participants
5 Participants
10 Participants
Participants Response to Treatment
Disease Status at Cycle 3 (Day 57 Assessment) · Stringent Complete Response (sCR)
8 Participants
9 Participants
7 Participants
Participants Response to Treatment
Disease Status at Cycle 3 (Day 57 Assessment) · Complete Response (CR)
19 Participants
5 Participants
14 Participants
Participants Response to Treatment
Disease Status at Cycle 3 (Day 57 Assessment) · Very Good Partial Remission (VGPR)
35 Participants
15 Participants
11 Participants
Participants Response to Treatment
Disease Status at Cycle 3 (Day 57 Assessment) · Partial Response (PR)
5 Participants
6 Participants
2 Participants
Participants Response to Treatment
Disease Status at Cycle 3 (Day 57 Assessment) · Stable Disease (SD)
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 3 (Day 57 Assessment) · Progression (PD)
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 3 (Day 57 Assessment) · Dead
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 3 (Day 57 Assessment) · Not Evaluable
1 Participants
2 Participants
1 Participants
Participants Response to Treatment
Disease Status at Cycle 6 (Day 141 Assessment) · Stringent Complete Response (sCR)
13 Participants
7 Participants
7 Participants
Participants Response to Treatment
Disease Status at Cycle 6 (Day 141 Assessment) · Complete Response (CR)
18 Participants
7 Participants
14 Participants
Participants Response to Treatment
Disease Status at Cycle 6 (Day 141 Assessment) · Very Good Partial Remission (VGPR)
28 Participants
14 Participants
10 Participants
Participants Response to Treatment
Disease Status at Cycle 6 (Day 141 Assessment) · Partial Response (PR)
6 Participants
7 Participants
2 Participants
Participants Response to Treatment
Disease Status at Cycle 6 (Day 141 Assessment) · Stable Disease (SD)
1 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 6 (Day 141 Assessment) · Progression (PD)
1 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 6 (Day 141 Assessment) · Dead
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 6 (Day 141 Assessment) · Not Evaluable
1 Participants
2 Participants
2 Participants
Participants Response to Treatment
Disease Status at Cycle 9 (Day 225 Assessment) · Stringent Complete Response (sCR)
16 Participants
8 Participants
9 Participants
Participants Response to Treatment
Disease Status at Cycle 9 (Day 225 Assessment) · Complete Response (CR)
17 Participants
7 Participants
15 Participants
Participants Response to Treatment
Disease Status at Cycle 9 (Day 225 Assessment) · Very Good Partial Remission (VGPR)
24 Participants
13 Participants
7 Participants
Participants Response to Treatment
Disease Status at Cycle 9 (Day 225 Assessment) · Partial Response (PR)
6 Participants
7 Participants
2 Participants
Participants Response to Treatment
Disease Status at Cycle 9 (Day 225 Assessment) · Stable Disease (SD)
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 9 (Day 225 Assessment) · Progression (PD)
2 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 9 (Day 225 Assessment) · Dead
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 9 (Day 225 Assessment) · Not Evaluable
3 Participants
2 Participants
2 Participants
Participants Response to Treatment
Disease Status at Cycle 12 (Day 309 Assessment) · Stringent Complete Response (sCR)
18 Participants
9 Participants
9 Participants
Participants Response to Treatment
Disease Status at Cycle 12 (Day 309 Assessment) · Complete Response (CR)
18 Participants
6 Participants
10 Participants
Participants Response to Treatment
Disease Status at Cycle 12 (Day 309 Assessment) · Very Good Partial Remission (VGPR)
20 Participants
13 Participants
7 Participants
Participants Response to Treatment
Disease Status at Cycle 12 (Day 309 Assessment) · Partial Response (PR)
5 Participants
7 Participants
4 Participants
Participants Response to Treatment
Disease Status at Cycle 12 (Day 309 Assessment) · Stable Disease (SD)
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 12 (Day 309 Assessment) · Progression (PD)
0 Participants
0 Participants
2 Participants
Participants Response to Treatment
Disease Status at Cycle 12 (Day 309 Assessment) · Dead
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 12 (Day 309 Assessment) · Not Evaluable
7 Participants
2 Participants
3 Participants
Participants Response to Treatment
Disease Status at Cycle 15 (Day 393 Assessment) · Stringent Complete Response (sCR)
18 Participants
9 Participants
9 Participants
Participants Response to Treatment
Disease Status at Cycle 15 (Day 393 Assessment) · Complete Response (CR)
17 Participants
5 Participants
13 Participants
Participants Response to Treatment
Disease Status at Cycle 15 (Day 393 Assessment) · Very Good Partial Remission (VGPR)
18 Participants
11 Participants
6 Participants
Participants Response to Treatment
Disease Status at Cycle 15 (Day 393 Assessment) · Partial Response (PR)
4 Participants
7 Participants
2 Participants
Participants Response to Treatment
Disease Status at Cycle 15 (Day 393 Assessment) · Stable Disease (SD)
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 15 (Day 393 Assessment) · Progression (PD)
3 Participants
0 Participants
1 Participants
Participants Response to Treatment
Disease Status at Cycle 15 (Day 393 Assessment) · Dead
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 15 (Day 393 Assessment) · Not Evaluable
8 Participants
5 Participants
4 Participants
Participants Response to Treatment
Disease Status at Cycle 18 (Day 477 Assessment) · Stringent Complete Response (sCR)
20 Participants
7 Participants
7 Participants
Participants Response to Treatment
Disease Status at Cycle 18 (Day 477 Assessment) · Complete Response (CR)
16 Participants
7 Participants
13 Participants
Participants Response to Treatment
Disease Status at Cycle 18 (Day 477 Assessment) · Very Good Partial Remission (VGPR)
17 Participants
14 Participants
6 Participants
Participants Response to Treatment
Disease Status at Cycle 18 (Day 477 Assessment) · Partial Response (PR)
3 Participants
6 Participants
1 Participants
Participants Response to Treatment
Disease Status at Cycle 18 (Day 477 Assessment) · Stable Disease (SD)
2 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 18 (Day 477 Assessment) · Progression (PD)
1 Participants
0 Participants
1 Participants
Participants Response to Treatment
Disease Status at Cycle 18 (Day 477 Assessment) · Dead
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 18 (Day 477 Assessment) · Not Evaluable
9 Participants
3 Participants
7 Participants
Participants Response to Treatment
Disease Status at Cycle 21 (Day 561 Assessment) · Stringent Complete Response (sCR)
20 Participants
6 Participants
10 Participants
Participants Response to Treatment
Disease Status at Cycle 21 (Day 561 Assessment) · Complete Response (CR)
15 Participants
5 Participants
11 Participants
Participants Response to Treatment
Disease Status at Cycle 21 (Day 561 Assessment) · Very Good Partial Remission (VGPR)
14 Participants
17 Participants
6 Participants
Participants Response to Treatment
Disease Status at Cycle 21 (Day 561 Assessment) · Partial Response (PR)
5 Participants
4 Participants
1 Participants
Participants Response to Treatment
Disease Status at Cycle 21 (Day 561 Assessment) · Stable Disease (SD)
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 21 (Day 561 Assessment) · Progression (PD)
2 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 21 (Day 561 Assessment) · Dead
1 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 21 (Day 561 Assessment) · Not Evaluable
11 Participants
5 Participants
7 Participants
Participants Response to Treatment
Disease Status at Cycle 24 (Day 654 Assessment) · Stringent Complete Response (sCR)
19 Participants
6 Participants
9 Participants
Participants Response to Treatment
Disease Status at Cycle 24 (Day 654 Assessment) · Complete Response (CR)
15 Participants
7 Participants
11 Participants
Participants Response to Treatment
Disease Status at Cycle 24 (Day 654 Assessment) · Very Good Partial Remission (VGPR)
14 Participants
16 Participants
6 Participants
Participants Response to Treatment
Disease Status at Cycle 24 (Day 654 Assessment) · Partial Response (PR)
6 Participants
3 Participants
1 Participants
Participants Response to Treatment
Disease Status at Cycle 24 (Day 654 Assessment) · Stable Disease (SD)
0 Participants
0 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 24 (Day 654 Assessment) · Progression (PD)
1 Participants
1 Participants
0 Participants
Participants Response to Treatment
Disease Status at Cycle 24 (Day 654 Assessment) · Dead
1 Participants
0 Participants
1 Participants
Participants Response to Treatment
Disease Status at Cycle 24 (Day 654 Assessment) · Not Evaluable
12 Participants
4 Participants
7 Participants

SECONDARY outcome

Timeframe: 2 years

Population: The randomized participants are included in the analysis.

The event for this endpoint is defined as disease progression from CR/sCR or progressive disease for participants not in CR/sCR, or initiation of off protocol antimyeloma therapy. The cumulative incidence of myeloma progression will be compared between the vaccine arm and the combined non-vaccine arms using Gray's test and treating death (without documentation of disease progression) as a competing risk. Participants alive without disease progression at last observation will be censored at the date of last contact.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=72 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Percentage of Participants With Myeloma Progression of Vaccine and Non-vaccine Arms
20.7 percentage of participants
Interval 12.0 to 31.1
11.8 percentage of participants
Interval 5.5 to 20.7

SECONDARY outcome

Timeframe: 2 years

Population: The randomized participants are included in the analysis.

This is the pairwise comparison for percentage of participants with Myeloma Progression. The event for this endpoint is defined as disease progression from CR/sCR or progressive disease for participants not in CR/sCR, or initiation of off protocol antimyeloma therapy. The cumulative incidence of myeloma progression will be compared between the vaccine arm, lenalidomide/GM-CSF arm and lenalidomide alone arm using Gray's test and treating death (without documentation of disease progression) as a competing risk. Participants alive without disease progression at last observation will be censored at the date of last contact.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=37 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
n=35 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Percentage of Participants With Myeloma Progression in Pairwise Analysis
20.7 percentage of participants
Interval 12.0 to 31.1
8.7 percentage of participants
Interval 2.2 to 21.0
15.1 percentage of participants
Interval 5.4 to 29.4

SECONDARY outcome

Timeframe: 2 years

Population: The randomized participants are included in the analysis

TRM is defined as death occurring in a patient from causes other than disease relapse or progression. Disease progression is the competing event for TRM. Patients alive without disease progression at last contact are considered censored for this event. TRM from time of randomization will be compared between vaccine and no-vaccine arms combined starting at time of randomization.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=72 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Percentage of Participants With Treatment-related Mortality (TRM)
0 percentage of participants
Interval 0.0 to 0.0
0 percentage of participants
Interval 0.0 to 0.0

SECONDARY outcome

Timeframe: 2 years

Population: The randomized participants are included in the analysis

Death or disease progression will be considered as events for this endpoint. The time to event will be calculated as time from randomization to disease progression, death, initiation of non-protocol anti-myeloma therapy, loss to follow-up or the end of the study, whichever comes first. The Kaplan-Meier estimator will be constructed for each treatment arm. Progression-free survival was compared between the vaccine and the combined non-vaccine arms using the log-rank test.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=72 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Percentage of Participants With Progression-Free Survival
79.3 percentage of participants
Interval 67.6 to 87.2
88.2 percentage of participants
Interval 77.8 to 93.3

SECONDARY outcome

Timeframe: 2 year

Population: The randomized participants are included in the analysis

This is the pairwise comparison for percentage of participants with Progression-Free Survival. Death or disease progression will be considered as events for this endpoint. The time to event will be calculated as time from randomization to disease progression, death, initiation of non-protocol anti-myeloma therapy, loss to follow-up or the end of the study, whichever comes first. The Kaplan-Meier estimator will be constructed for each treatment arm. Progression-free survival was compared between the vaccine arm, lenalidomide/GM-CSF arm and lenalidomide alone arm.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=37 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
n=35 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Percentage of Participants With Progression-Free Survival in Pairwise Analysis
79.3 percentage of participants
Interval 67.6 to 87.2
91.3 percentage of participants
Interval 75.5 to 97.1
84.9 percentage of participants
Interval 67.5 to 93.4

SECONDARY outcome

Timeframe: 2 years

Population: The randomized participants are included in the analysis

Death from any cause is considered as events for this endpoint. The time to event is calculated as time from randomization to death, loss to follow-up or the end of the study, whichever comes first. Patients alive at the time of last observation are considered censored. The Kaplan-Meier estimator will be constructed for each treatment arm. Overall survival are compared between the vaccine and the combined non-vaccine arms from time of randomization.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=72 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Percentage of Participants With Overall Survival
97 percentage of participants
Interval 88.6 to 99.2
98.5 percentage of participants
Interval 89.7 to 99.8

SECONDARY outcome

Timeframe: 2 years

Population: The randomized participants are included in the analysis

This is the pairwise comparison for percentage of participants with Overall Survival. Death from any cause is considered as events for this endpoint. The time to event is calculated as time from randomization to death, loss to follow-up or the end of the study, whichever comes first. Patients alive at the time of last observation are considered censored. The Kaplan-Meier estimator will be constructed for each treatment arm. Overall survival are compared between the vaccine arm, lenalidomide/GM-CSF arm and lenalidomide alone arm from time of randomization.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=37 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
n=35 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Percentage of Participants With Overall Survival in Pairwise Analysis
97 percentage of participants
Interval 88.6 to 99.2
100 percentage of participants
Interval 100.0 to 100.0
96.9 percentage of participants
Interval 79.8 to 99.6

SECONDARY outcome

Timeframe: 2 years

Population: The randomized participants are included in the analysis

Toxicities are evaluated using NCI CTCAE version 4.0 at pre-maintenance initiation and during maintenance therapy monthly for the first 4 cycles and then at cycles 6, 9, 15, 21, 24, which correspond to Day 1, 29, 57, 85, 141, 225, 393, 561, and 645 post maintenance initiation. All Grade ≥ 3 toxicities will be tabulated for treatment arms. Toxicities are categorized by organ system according to the CTCAE. Toxicities that involve multiple questions per organ system are combined in one category.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=37 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
n=35 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Number of Grade ≥ 3 Toxicities
Investigations
2 Toxicities
0 Toxicities
1 Toxicities
Number of Grade ≥ 3 Toxicities
Metabolism and Nutrition Disorders
7 Toxicities
1 Toxicities
3 Toxicities
Number of Grade ≥ 3 Toxicities
Musculoskeletal and Connective Tissue Disorders
1 Toxicities
1 Toxicities
2 Toxicities
Number of Grade ≥ 3 Toxicities
Nervous System Disorders
14 Toxicities
5 Toxicities
1 Toxicities
Number of Grade ≥ 3 Toxicities
Renal Disorders
1 Toxicities
0 Toxicities
2 Toxicities
Number of Grade ≥ 3 Toxicities
Respiratory, Thoracic and Mediastinal Disorders
5 Toxicities
1 Toxicities
2 Toxicities
Number of Grade ≥ 3 Toxicities
Skin and Subcutaneous Tissue Disorders
4 Toxicities
5 Toxicities
7 Toxicities
Number of Grade ≥ 3 Toxicities
Vascular Disorders
6 Toxicities
11 Toxicities
3 Toxicities
Number of Grade ≥ 3 Toxicities
Abnormal Liver Symptoms
0 Toxicities
1 Toxicities
0 Toxicities
Number of Grade ≥ 3 Toxicities
Auditory Disorders
1 Toxicities
0 Toxicities
0 Toxicities
Number of Grade ≥ 3 Toxicities
Blood and Lymphatic Disorders
81 Toxicities
40 Toxicities
38 Toxicities
Number of Grade ≥ 3 Toxicities
Cardiovascular Disorders
4 Toxicities
3 Toxicities
2 Toxicities
Number of Grade ≥ 3 Toxicities
GI Disorders
15 Toxicities
4 Toxicities
2 Toxicities
Number of Grade ≥ 3 Toxicities
General Disorders
5 Toxicities
2 Toxicities
2 Toxicities
Number of Grade ≥ 3 Toxicities
Hepatobiliary/Pancreas Disorders
4 Toxicities
1 Toxicities
1 Toxicities
Number of Grade ≥ 3 Toxicities
Immune System Disorders
2 Toxicities
0 Toxicities
0 Toxicities

SECONDARY outcome

Timeframe: 2 years

Population: The randomized participants are included in the analysis

Toxicities are evaluated using NCI CTCAE version 4.0 at pre-maintenance initiation and during maintenance therapy monthly for the first 4 cycles and then at cycles 6, 9, 15, 21, 24, which correspond to Day 1, 29, 57, 85, 141, 225, 393, 561, and 645 post maintenance initiation. The number of participants experiencing Grade ≥ 3 toxicity are displayed for the vaccine and non-vaccine arms separately. The proportion of participants experiencing Grade ≥ 3 toxicity are compared between the vaccine and non-vaccine arms combined.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=72 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Participants With Grade ≥ 3 Toxicities
53 Participants
49 Participants

SECONDARY outcome

Timeframe: 2years

Population: The randomized participants are included in the analysis

Grade 2 and 3 infections, as defined by the BMT CTN Technical MOP, occurring after randomization will be reported. The incidence of definite and probable viral, fungal and bacterial infections will be tabulated for each patient.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=37 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
n=35 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Number of Grade 2 and 3 Infections
Other
1 infections
0 infections
1 infections
Number of Grade 2 and 3 Infections
Bacterial
10 infections
3 infections
6 infections
Number of Grade 2 and 3 Infections
Viral
14 infections
6 infections
14 infections
Number of Grade 2 and 3 Infections
Fungal
0 infections
0 infections
0 infections

SECONDARY outcome

Timeframe: 2 years

Population: The randomized participants are included in the analysis

Grade 2 and 3 infections, as defined by the BMT CTN Technical MOP, are reported on the study. The cumulative incidence of infections post randomization, treating death as a competing risk, were compared between the vaccine and the combined non-vaccine groups using the Gray's test.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=72 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Percentage of Participants With Grade 2 and 3 Infections
26.6 percentage of participants
Interval 16.7 to 37.6
23.2 percentage of participants
Interval 14.0 to 33.8

SECONDARY outcome

Timeframe: 2 years

Population: The randomized participants are included in the analysis

This is the pairwise comparison for percentage of participants with Grade 2 and 3 infections. Grade 2 and 3 infections, as defined by the BMT CTN Technical MOP, are reported on the study. The cumulative incidence of infections post randomization, treating death as a competing risk, were compared between the vaccine arm, lenalidomide/GM-CSF arm and lenalidomide alone arm using the Gray's test.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=37 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
n=35 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Percentage of Participants With Grade 2 and 3 Infections in Pairwise Analysis
26.6 percentage of participants
Interval 16.7 to 37.6
14.2 percentage of participants
Interval 5.1 to 27.8
32.6 percentage of participants
Interval 17.5 to 48.7

SECONDARY outcome

Timeframe: Pre-randomization, Post-randomization at Cycle 9

Population: The randomized participants who had MRD assessment. Participants who did not have MRD assessment are not included in this analysis.

Minimal residual disease (MRD) is defined as the presence of malignant plasma cells detected by multicolor flow cytometry among patients who are in complete remission. Multichannel flow cytometry will be used to establish MRD based on the presence of malignant plasma cells that are CD45 (-/dim), CD38+, CD138+, CD19-, CD56+ kappa or lambda restricted. The number of patients with MRD negative (MRD-) are described using frequencies at pre-randomization and 9th cycle post-randomization and compared between the vaccine arm with the no-vaccine arms combined.

Outcome measures

Outcome measures
Measure
Lenalidomide, Vaccine, and GM-CSF
n=65 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide With or Without GM-CSF
n=66 Participants
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with or without GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Number of Participants With Minimal Residual Disease (MRD)
Pre-randomization
35 Participants
31 Participants
Number of Participants With Minimal Residual Disease (MRD)
Post-randomization at Cycle 9
38 Participants
41 Participants

Adverse Events

Lenalidomide, Vaccine, and GM-CSF

Serious events: 2 serious events
Other events: 3 other events
Deaths: 3 deaths

Lenalidomide and GM-CSF

Serious events: 3 serious events
Other events: 3 other events
Deaths: 0 deaths

Maintenance Lenalidomide

Serious events: 1 serious events
Other events: 3 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 participants at risk
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide and GM-CSF
n=37 participants at risk
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
n=35 participants at risk
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Blood and lymphatic system disorders
NEUTROPENIC FEVER
1.5%
1/68 • Number of events 1 • 2 years
0.00%
0/37 • 2 years
0.00%
0/35 • 2 years
Investigations
PROLONGED QTC
1.5%
1/68 • Number of events 1 • 2 years
0.00%
0/37 • 2 years
0.00%
0/35 • 2 years
Investigations
ELEVATE LIVER ENZYMES
1.5%
1/68 • Number of events 1 • 2 years
0.00%
0/37 • 2 years
0.00%
0/35 • 2 years
Nervous system disorders
SYNCOPE
1.5%
1/68 • Number of events 1 • 2 years
0.00%
0/37 • 2 years
0.00%
0/35 • 2 years
Cardiac disorders
ATRIAL FLUTTER
0.00%
0/68 • 2 years
0.00%
0/37 • 2 years
2.9%
1/35 • Number of events 1 • 2 years
Cardiac disorders
CONGESTIVE HEART FAILURE
0.00%
0/68 • 2 years
2.7%
1/37 • Number of events 1 • 2 years
0.00%
0/35 • 2 years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
MELANOMA
0.00%
0/68 • 2 years
2.7%
1/37 • Number of events 1 • 2 years
0.00%
0/35 • 2 years
Investigations
LIVER FUNCTION TESTS INCREASED
0.00%
0/68 • 2 years
2.7%
1/37 • Number of events 1 • 2 years
0.00%
0/35 • 2 years

Other adverse events

Other adverse events
Measure
Lenalidomide, Vaccine, and GM-CSF
n=68 participants at risk
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will undergo leukapheresis and then will receive maintenance lenalidomide with myeloma vaccine and GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell will be isolated and frozen for subsequent vaccine generation. Autologous Stem Cell Transplant: Patients will receive an autologous graft of a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per transplantation with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Leukapheresis: Blood samples will be collected through a catheter in the neck or chest and leukapheresis will be performed using standard clinical procedures. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. Myeloma vaccine: The target dose is 3 x 10\^6 fusion cells per vaccine. A minimum of 3 x 10\^6 total fusion cells will be required to proceed with vaccine administration. Patients will receive the DC/MM fusion vaccine on day 1 of cycles 2, 3, and 4 of lenalidomide maintenance. GM-CSF: 100 ug GM-CSF will be given for a total of 4 days of each cycle.
Lenalidomide and GM-CSF
n=37 participants at risk
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide with GM-CSF. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy. GM-CSF: 100 ug GM-CSF will be given subcutaneously in the upper thigh and daily for a total of 4 days of each cycle.
Maintenance Lenalidomide
n=35 participants at risk
Patients will undergo tumor cell collection and autologous stem cell transplant with melphalan. Patients will receive maintenance lenalidomide. Tumor Cell Collection: Patients will undergo aspiration of 30 mL of bone marrow from which myeloma cell preparations will be generated. Myeloma cells will be isolated and frozen for subsequent vaccine generation for patients randomized to the vaccine arm (randomization occurs after transplant and recovery). Autologous Stem Cell Transplant: Patients will receive an autologous graft with a minimum cell dose of 2.0 x 10\^6 CD34+ cells/kg patient actual body weight per autologous transplantation. Melphalan: Autologous hematopoietic cell transplant will be done with high-dose melphalan of 200mg/m\^2 at the schedule and timing according to institutional practices. Lenalidomide: Maintenance therapy with lenalidomide will begin between 90 and 100 days after stem cell infusion. Lenalidomide will be administered initially at a dose of 10 mg per day continuously. Cycle duration during maintenance therapy is 28 days. Patients will continue lenalidomide for two years from initiation of therapy.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
LENTIGO MALIGNA
1.5%
1/68 • Number of events 1 • 2 years
0.00%
0/37 • 2 years
0.00%
0/35 • 2 years
Cardiac disorders
ATRIAL FIBRILLATION
1.5%
1/68 • Number of events 1 • 2 years
0.00%
0/37 • 2 years
0.00%
0/35 • 2 years
Investigations
ELEVATED ALT
1.5%
1/68 • Number of events 1 • 2 years
0.00%
0/37 • 2 years
0.00%
0/35 • 2 years
Investigations
INCREASED ALT > 3.0 X ULN
0.00%
0/68 • 2 years
0.00%
0/37 • 2 years
2.9%
1/35 • Number of events 1 • 2 years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
PROSTATE CANCER
0.00%
0/68 • 2 years
0.00%
0/37 • 2 years
2.9%
1/35 • Number of events 1 • 2 years
Investigations
ELEVATED LFT
0.00%
0/68 • 2 years
0.00%
0/37 • 2 years
2.9%
1/35 • Number of events 1 • 2 years
Vascular disorders
GRADE 2 DVT
0.00%
0/68 • 2 years
2.7%
1/37 • Number of events 1 • 2 years
0.00%
0/35 • 2 years
Vascular disorders
THROMBOEMBOLIC EVENT
0.00%
0/68 • 2 years
2.7%
1/37 • Number of events 1 • 2 years
0.00%
0/35 • 2 years
Investigations
GRADE 2 TRANSAMINITIS
0.00%
0/68 • 2 years
2.7%
1/37 • Number of events 1 • 2 years
0.00%
0/35 • 2 years

Additional Information

Adam Mendizabal, PhD

The Emmes Company

Phone: 301-284-1798

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place