Trial Outcomes & Findings for Treatment Study of Denintuzumab Mafodotin (SGN-CD19A) Plus RICE Versus RICE Alone for Diffuse Large B-Cell Lymphoma (NCT NCT02592876)

NCT ID: NCT02592876

Last Updated: 2019-05-17

Results Overview

Number of patients with complete metabolic response by PET (positive emission tomography) and CT (computed tomography) scans, or complete radiologic response by CT only.

Recruitment status

TERMINATED

Study phase

PHASE2

Target enrollment

81 participants

Primary outcome timeframe

Up to 4 months

Results posted on

2019-05-17

Participant Flow

Participant milestones

Participant milestones
Measure
RICE
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Overall Study
STARTED
41
40
Overall Study
Received Study Drug
40
40
Overall Study
Completed Treatment
34
32
Overall Study
COMPLETED
0
0
Overall Study
NOT COMPLETED
41
40

Reasons for withdrawal

Reasons for withdrawal
Measure
RICE
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Overall Study
Withdrawal by Subject
3
3
Overall Study
Study Termination by Sponsor
32
27
Overall Study
Lost to Follow-up
0
1
Overall Study
Death
6
9

Baseline Characteristics

Treatment Study of Denintuzumab Mafodotin (SGN-CD19A) Plus RICE Versus RICE Alone for Diffuse Large B-Cell Lymphoma

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
RICE
n=41 Participants
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 Participants
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Total
n=81 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
28 Participants
n=5 Participants
24 Participants
n=7 Participants
52 Participants
n=5 Participants
Age, Categorical
>=65 years
13 Participants
n=5 Participants
16 Participants
n=7 Participants
29 Participants
n=5 Participants
Age, Continuous
60.0 years
n=5 Participants
62.5 years
n=7 Participants
61.0 years
n=5 Participants
Sex: Female, Male
Female
16 Participants
n=5 Participants
13 Participants
n=7 Participants
29 Participants
n=5 Participants
Sex: Female, Male
Male
25 Participants
n=5 Participants
27 Participants
n=7 Participants
52 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
n=5 Participants
5 Participants
n=7 Participants
8 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
37 Participants
n=5 Participants
35 Participants
n=7 Participants
72 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
White
37 Participants
n=5 Participants
36 Participants
n=7 Participants
73 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
Region of Enrollment
United States
41 participants
n=5 Participants
40 participants
n=7 Participants
81 participants
n=5 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
Grade 0
17 Participants
n=5 Participants
19 Participants
n=7 Participants
36 Participants
n=5 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
Grade 1
21 Participants
n=5 Participants
21 Participants
n=7 Participants
42 Participants
n=5 Participants
Eastern Cooperative Oncology Group (ECOG) Performance Status
Grade 2
3 Participants
n=5 Participants
0 Participants
n=7 Participants
3 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Up to 4 months

Population: The modified Intent-to-Treat (mITT) analysis set includes all patients who were randomized to the recommended dose level of 19A+RICE or RICE and received at least 1 cycle of study treatment.

Number of patients with complete metabolic response by PET (positive emission tomography) and CT (computed tomography) scans, or complete radiologic response by CT only.

Outcome measures

Outcome measures
Measure
RICE
n=40 Participants
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 Participants
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Complete Remission Rate Per Independent Review Facility
18 Participants
25 Participants

SECONDARY outcome

Timeframe: Up to 4 months

Population: The safety analysis set includes all patients who received any amount of denintuzumab mafodotin or any component of RICE. Treatment group is determined using the actual treatment arm received, regardless of the randomization treatment assignment.

Treatment-emergent adverse events (TEAEs) are presented and defined as newly occurring (not present at baseline) or worsening after first dose of investigational product. AE severity and seriousness are assessed independently. 'Severity' characterizes the intensity of an AE and is graded using the National Cancer Institute's Common Terminology Criteria for Adverse Events (NCI CTCAE), version 4.03. An AE is considered 'serious' if it is life-threatening, fatal, requires hospitalization, or is otherwise considered to be medically significant.

Outcome measures

Outcome measures
Measure
RICE
n=40 Participants
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 Participants
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Number of Participants With Adverse Events (AEs)
Treatment-emergent AE (TEAE)
39 Participants
40 Participants
Number of Participants With Adverse Events (AEs)
Treatment-related AEs
38 Participants
40 Participants
Number of Participants With Adverse Events (AEs)
Grade 3 or Higher TEAEs
31 Participants
38 Participants
Number of Participants With Adverse Events (AEs)
Serious AEs (SAEs)
13 Participants
19 Participants
Number of Participants With Adverse Events (AEs)
Treatment-related SAEs
9 Participants
13 Participants
Number of Participants With Adverse Events (AEs)
AEs Leading to Dose Delay
3 Participants
8 Participants
Number of Participants With Adverse Events (AEs)
AEs Leading to Dose Reduction
3 Participants
5 Participants
Number of Participants With Adverse Events (AEs)
AEs Leading to Treatment Discontinuation
2 Participants
3 Participants

SECONDARY outcome

Timeframe: Up to 4 months

Population: The safety analysis set includes all patients who received any amount of denintuzumab mafodotin or any component of RICE. Treatment group is determined using the actual treatment arm received, regardless of the randomization treatment assignment.

Number of participants who experienced a maximum post-baseline laboratory toxicity of Grade 3 or higher (per National Cancer Institute's Common Terminology Criteria for Adverse Events, version 4.03).

Outcome measures

Outcome measures
Measure
RICE
n=40 Participants
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 Participants
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Number of Participants With Laboratory Abnormalities
Any Hematology Test
37 Participants
37 Participants
Number of Participants With Laboratory Abnormalities
Hemoglobin Low
19 Participants
18 Participants
Number of Participants With Laboratory Abnormalities
Leukocytes High
1 Participants
0 Participants
Number of Participants With Laboratory Abnormalities
Leukocytes Low
23 Participants
24 Participants
Number of Participants With Laboratory Abnormalities
Lymphocytes High
2 Participants
0 Participants
Number of Participants With Laboratory Abnormalities
Lymphocytes Low
34 Participants
31 Participants
Number of Participants With Laboratory Abnormalities
Neutrophils Low
22 Participants
22 Participants
Number of Participants With Laboratory Abnormalities
Platelets Low
26 Participants
35 Participants
Number of Participants With Laboratory Abnormalities
Any Chemistry Test
18 Participants
16 Participants
Number of Participants With Laboratory Abnormalities
Alanine Aminotransferase High
3 Participants
3 Participants
Number of Participants With Laboratory Abnormalities
Aspartate Aminotransferase High
1 Participants
2 Participants
Number of Participants With Laboratory Abnormalities
Calcium High
4 Participants
0 Participants
Number of Participants With Laboratory Abnormalities
Calcium Low
0 Participants
2 Participants
Number of Participants With Laboratory Abnormalities
Creatinine High
0 Participants
1 Participants
Number of Participants With Laboratory Abnormalities
Glucose High
4 Participants
3 Participants
Number of Participants With Laboratory Abnormalities
Phosphate Low
9 Participants
8 Participants
Number of Participants With Laboratory Abnormalities
Potassium Low
3 Participants
5 Participants
Number of Participants With Laboratory Abnormalities
Sodium Low
4 Participants
3 Participants
Number of Participants With Laboratory Abnormalities
Urate High
2 Participants
0 Participants

SECONDARY outcome

Timeframe: Up to 4 months

Population: The modified Intent-to-Treat (mITT) analysis set includes all patients who were randomized to the recommended dose level of 19A+RICE or RICE and received at least 1 cycle of study treatment.

ORR is defined as the proportion of patients with complete remission (CR) or partial remission (PR) per independent review facility (IRF) at the end of treatment.

Outcome measures

Outcome measures
Measure
RICE
n=40 Participants
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 Participants
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Objective Response Rate (ORR)
30 Participants
32 Participants

SECONDARY outcome

Timeframe: Up to 27.9 months

Population: The modified Intent-to-Treat (mITT) analysis set includes all patients who were randomized to the recommended dose level of 19A+RICE or RICE and received at least 1 cycle of study treatment.

Defined as the time from the start of the first radiographic documentation of CR per investigator to the first documentation of progressive disease, death due to any cause, or receipt of subsequent anticancer therapy, whichever comes first.

Outcome measures

Outcome measures
Measure
RICE
n=40 Participants
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 Participants
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Duration of Complete Response (CR)
NA months
Insufficient number of events observed
NA months
Insufficient number of events observed

SECONDARY outcome

Timeframe: Up to 27.9 months

Duration of OR is defined as the time from the start of the first radiographic documentation of OR per investigator to the first documentation of PD, death due to any cause, or receipt of subsequent anticancer therapy, whichever comes first.

Outcome measures

Outcome measures
Measure
RICE
n=40 Participants
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 Participants
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Duration of Objective Response (OR)
NA months
Interval 8.15 to
Insufficient number of events observed
NA months
Insufficient number of events observed

SECONDARY outcome

Timeframe: Up to 30 months

Population: The modified Intent-to-Treat (mITT) analysis set includes all patients who were randomized to the recommended dose level of 19A+RICE or RICE and received at least 1 cycle of study treatment.

PFS is defined as the time from randomization to first documentation of disease progression per investigator, death due to any cause, or receipt of subsequent anticancer therapy, whichever comes first.

Outcome measures

Outcome measures
Measure
RICE
n=40 Participants
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 Participants
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Progression-free Survival (PFS)
NA months
Interval 2.86 to
Insufficient number of events observed
NA months
Interval 5.82 to
Insufficient number of events observed

SECONDARY outcome

Timeframe: Up to 30 months

Population: The modified Intent-to-Treat (mITT) analysis set includes all patients who were randomized to the recommended dose level of 19A+RICE or RICE and received at least 1 cycle of study treatment.

OS is defined as the time from date of randomization to date of death due to any cause. In the absence of confirmation of death, survival time will be censored at the last date the patient is known to be alive.

Outcome measures

Outcome measures
Measure
RICE
n=40 Participants
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 Participants
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Overall Survival (OS)
NA months
Insufficient number of events observed
NA months
Interval 10.97 to
Insufficient number of events observed

SECONDARY outcome

Timeframe: Up to 30 months

Population: The modified Intent-to-Treat (mITT) analysis set includes all patients who were randomized to the recommended dose level of 19A+RICE or RICE and received at least 1 cycle of study treatment.

Defined as the number of patients who are able to adequately mobilize PBSC per investigator assessment on or after completion of study treatment, prior to subsequent anticancer therapy.

Outcome measures

Outcome measures
Measure
RICE
n=40 Participants
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 Participants
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Number of Patients Achieving Peripheral Blood Stem Cell (PBSC) Mobilization
Patients with sufficient stem cell collection
26 Participants
21 Participants
Number of Patients Achieving Peripheral Blood Stem Cell (PBSC) Mobilization
Patients with attempted stem cell collection(s)
28 Participants
24 Participants

SECONDARY outcome

Timeframe: Up to 30 months

Population: The modified Intent-to-Treat (mITT) analysis set includes all patients who were randomized to the recommended dose level of 19A+RICE or RICE and received at least 1 cycle of study treatment.

Number of patients receiving ASCT after completion of study treatment (EOT), prior to subsequent anticancer therapy.

Outcome measures

Outcome measures
Measure
RICE
n=40 Participants
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 Participants
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Number of Patients Receiving Autologous Stem Cell Transplant (ASCT)
Patients planned to receive ASCT at EOT
28 Participants
25 Participants
Number of Patients Receiving Autologous Stem Cell Transplant (ASCT)
Patients who received ASCT at EOT
25 Participants
22 Participants

Adverse Events

RICE

Serious events: 13 serious events
Other events: 40 other events
Deaths: 6 deaths

19A+RICE

Serious events: 19 serious events
Other events: 40 other events
Deaths: 9 deaths

Serious adverse events

Serious adverse events
Measure
RICE
n=40 participants at risk
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 participants at risk
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Blood and lymphatic system disorders
Anaemia
0.00%
0/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
Blood and lymphatic system disorders
Febrile neutropenia
15.0%
6/40 • Up to 30 months
20.0%
8/40 • Up to 30 months
Blood and lymphatic system disorders
Thrombocytopenia
2.5%
1/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Cardiac disorders
Tachycardia
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Gastrointestinal disorders
Gastric haemorrhage
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Gastrointestinal disorders
Gastritis
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Gastrointestinal disorders
Gastrointestinal haemorrhage
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Gastrointestinal disorders
Intestinal fistula
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Gastrointestinal disorders
Intestinal obstruction
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Gastrointestinal disorders
Nausea
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Gastrointestinal disorders
Pancreatitis
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Gastrointestinal disorders
Pancreatitis acute
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Gastrointestinal disorders
Rectal haemorrhage
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Gastrointestinal disorders
Small intestinal obstruction
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Gastrointestinal disorders
Vomiting
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
General disorders
Pyrexia
2.5%
1/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Infections and infestations
External ear cellulitis
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Infections and infestations
Lung infection
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Infections and infestations
Otitis externa
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Infections and infestations
Pneumonia
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Infections and infestations
Rhinovirus infection
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Infections and infestations
Sepsis
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Infections and infestations
Septic shock
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Injury, poisoning and procedural complications
Gastrointestinal stoma complication
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Injury, poisoning and procedural complications
Hip fracture
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Injury, poisoning and procedural complications
Post procedural haemorrhage
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Injury, poisoning and procedural complications
Toxicity to various agents
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Injury, poisoning and procedural complications
Transfusion reaction
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Investigations
Alanine aminotransferase increased
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Investigations
Aspartate aminotransferase increased
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Investigations
Hepatic enzyme increased
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Investigations
Platelet count decreased
0.00%
0/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
Investigations
White blood cell count decreased
0.00%
0/40 • Up to 30 months
5.0%
2/40 • Up to 30 months
Metabolism and nutrition disorders
Hypokalaemia
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Malignant pleural effusion
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Nervous system disorders
Depressed level of consciousness
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Nervous system disorders
Headache
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Nervous system disorders
Neurotoxicity
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Nervous system disorders
Syncope
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Renal and urinary disorders
Acute kidney injury
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Respiratory, thoracic and mediastinal disorders
Acute respiratory failure
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Respiratory, thoracic and mediastinal disorders
Haemothorax
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Respiratory, thoracic and mediastinal disorders
Hypoxia
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Respiratory, thoracic and mediastinal disorders
Mediastinal mass
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Respiratory, thoracic and mediastinal disorders
Pulmonary embolism
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Skin and subcutaneous tissue disorders
Pruritus
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Skin and subcutaneous tissue disorders
Urticaria
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Vascular disorders
Hypotension
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Vascular disorders
Orthostatic hypotension
0.00%
0/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Vascular disorders
Vena cava thrombosis
2.5%
1/40 • Up to 30 months
0.00%
0/40 • Up to 30 months

Other adverse events

Other adverse events
Measure
RICE
n=40 participants at risk
Rituximab, ifosfamide, carboplatin, and etoposide rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
19A+RICE
n=40 participants at risk
Denintuzumab mafodotin plus rituximab, ifosfamide, carboplatin, and etoposide denintuzumab mafodotin: Denintuzumab mafodotin 3 mg/kg by intravenous (IV) infusion, every 3 weeks for up to 3 cycles. rituximab: 375 mg/m2 by IV infusion, every 3 weeks for up to 3 cycles ifosfamide: 5000 mg/m2 by IV infusion over a 24-hour period, every 3 weeks for up to 3 cycles carboplatin: AUC 5 by IV infusion, every 3 weeks for up to 3 cycles etoposide: 100 mg/m2 per day by IV infusion for 3 days, every 3 weeks for up to 3 cycles
Blood and lymphatic system disorders
Anaemia
57.5%
23/40 • Up to 30 months
47.5%
19/40 • Up to 30 months
Blood and lymphatic system disorders
Neutropenia
7.5%
3/40 • Up to 30 months
22.5%
9/40 • Up to 30 months
Blood and lymphatic system disorders
Thrombocytopenia
37.5%
15/40 • Up to 30 months
57.5%
23/40 • Up to 30 months
Eye disorders
Dry eye
10.0%
4/40 • Up to 30 months
25.0%
10/40 • Up to 30 months
Eye disorders
Foreign body sensation in eyes
0.00%
0/40 • Up to 30 months
10.0%
4/40 • Up to 30 months
Eye disorders
Keratitis
0.00%
0/40 • Up to 30 months
10.0%
4/40 • Up to 30 months
Eye disorders
Keratopathy
7.5%
3/40 • Up to 30 months
67.5%
27/40 • Up to 30 months
Eye disorders
Photophobia
2.5%
1/40 • Up to 30 months
20.0%
8/40 • Up to 30 months
Eye disorders
Vision blurred
12.5%
5/40 • Up to 30 months
65.0%
26/40 • Up to 30 months
Gastrointestinal disorders
Abdominal pain
2.5%
1/40 • Up to 30 months
12.5%
5/40 • Up to 30 months
Gastrointestinal disorders
Constipation
27.5%
11/40 • Up to 30 months
30.0%
12/40 • Up to 30 months
Gastrointestinal disorders
Diarrhoea
12.5%
5/40 • Up to 30 months
22.5%
9/40 • Up to 30 months
Gastrointestinal disorders
Dry mouth
7.5%
3/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Gastrointestinal disorders
Dyspepsia
7.5%
3/40 • Up to 30 months
5.0%
2/40 • Up to 30 months
Gastrointestinal disorders
Gastrooesophageal reflux disease
7.5%
3/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Gastrointestinal disorders
Nausea
62.5%
25/40 • Up to 30 months
65.0%
26/40 • Up to 30 months
Gastrointestinal disorders
Stomatitis
5.0%
2/40 • Up to 30 months
5.0%
2/40 • Up to 30 months
Gastrointestinal disorders
Vomiting
27.5%
11/40 • Up to 30 months
30.0%
12/40 • Up to 30 months
General disorders
Asthenia
5.0%
2/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
General disorders
Chills
12.5%
5/40 • Up to 30 months
12.5%
5/40 • Up to 30 months
General disorders
Fatigue
52.5%
21/40 • Up to 30 months
47.5%
19/40 • Up to 30 months
General disorders
Oedema peripheral
17.5%
7/40 • Up to 30 months
12.5%
5/40 • Up to 30 months
General disorders
Pyrexia
10.0%
4/40 • Up to 30 months
10.0%
4/40 • Up to 30 months
Injury, poisoning and procedural complications
Contusion
5.0%
2/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
Investigations
Alanine aminotransferase increased
5.0%
2/40 • Up to 30 months
5.0%
2/40 • Up to 30 months
Investigations
Aspartate aminotransferase increased
5.0%
2/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
Investigations
Blood creatinine increased
7.5%
3/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Investigations
Platelet count decreased
0.00%
0/40 • Up to 30 months
15.0%
6/40 • Up to 30 months
Investigations
Weight decreased
5.0%
2/40 • Up to 30 months
5.0%
2/40 • Up to 30 months
Metabolism and nutrition disorders
Decreased appetite
20.0%
8/40 • Up to 30 months
17.5%
7/40 • Up to 30 months
Metabolism and nutrition disorders
Dehydration
7.5%
3/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
Metabolism and nutrition disorders
Hyperglycaemia
7.5%
3/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
Metabolism and nutrition disorders
Hypokalaemia
15.0%
6/40 • Up to 30 months
17.5%
7/40 • Up to 30 months
Metabolism and nutrition disorders
Hypomagnesaemia
20.0%
8/40 • Up to 30 months
17.5%
7/40 • Up to 30 months
Metabolism and nutrition disorders
Hyponatraemia
2.5%
1/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
Metabolism and nutrition disorders
Hypophosphataemia
7.5%
3/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
Musculoskeletal and connective tissue disorders
Back pain
2.5%
1/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
Musculoskeletal and connective tissue disorders
Bone pain
10.0%
4/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Musculoskeletal and connective tissue disorders
Pain in extremity
2.5%
1/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
Nervous system disorders
Dizziness
12.5%
5/40 • Up to 30 months
15.0%
6/40 • Up to 30 months
Nervous system disorders
Dysgeusia
7.5%
3/40 • Up to 30 months
5.0%
2/40 • Up to 30 months
Nervous system disorders
Headache
17.5%
7/40 • Up to 30 months
22.5%
9/40 • Up to 30 months
Nervous system disorders
Paraesthesia
0.00%
0/40 • Up to 30 months
10.0%
4/40 • Up to 30 months
Nervous system disorders
Peripheral sensory neuropathy
10.0%
4/40 • Up to 30 months
0.00%
0/40 • Up to 30 months
Nervous system disorders
Syncope
7.5%
3/40 • Up to 30 months
5.0%
2/40 • Up to 30 months
Psychiatric disorders
Insomnia
7.5%
3/40 • Up to 30 months
15.0%
6/40 • Up to 30 months
Renal and urinary disorders
Dysuria
7.5%
3/40 • Up to 30 months
2.5%
1/40 • Up to 30 months
Respiratory, thoracic and mediastinal disorders
Cough
5.0%
2/40 • Up to 30 months
15.0%
6/40 • Up to 30 months
Respiratory, thoracic and mediastinal disorders
Dyspnoea
17.5%
7/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
Respiratory, thoracic and mediastinal disorders
Epistaxis
7.5%
3/40 • Up to 30 months
10.0%
4/40 • Up to 30 months
Respiratory, thoracic and mediastinal disorders
Hiccups
10.0%
4/40 • Up to 30 months
15.0%
6/40 • Up to 30 months
Skin and subcutaneous tissue disorders
Alopecia
12.5%
5/40 • Up to 30 months
17.5%
7/40 • Up to 30 months
Skin and subcutaneous tissue disorders
Night sweats
5.0%
2/40 • Up to 30 months
7.5%
3/40 • Up to 30 months
Vascular disorders
Hypotension
5.0%
2/40 • Up to 30 months
5.0%
2/40 • Up to 30 months

Additional Information

Chief Medical Officer

Seattle Genetics, Inc.

Phone: (855)473-2436

Results disclosure agreements

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