Trial Outcomes & Findings for Dendritic Cell Vaccination in Patients With Advanced Melanoma (NCT NCT03092453)

NCT ID: NCT03092453

Last Updated: 2024-12-24

Results Overview

Immune response measuring increased numbers of peptide specific T cells as calculated by the tetramer assay. The numbers of Peptide Specific T Cells are reported as the percent of CD8+ T cells that were p/HLA multimer positive for each antigen.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

5 participants

Primary outcome timeframe

Screening through week 21

Results posted on

2024-12-24

Participant Flow

Participant milestones

Participant milestones
Measure
Mature Dendritic Cell (DC) Vaccine
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Overall Study
STARTED
5
Overall Study
COMPLETED
3
Overall Study
NOT COMPLETED
2

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Dendritic Cell Vaccination in Patients With Advanced Melanoma

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Mature Dendritic Cell (DC) Vaccine
n=5 Participants
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
4 Participants
n=5 Participants
Age, Categorical
>=65 years
1 Participants
n=5 Participants
Sex: Female, Male
Female
2 Participants
n=5 Participants
Sex: Female, Male
Male
3 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
Race (NIH/OMB)
White
5 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Region of Enrollment
United States
5 participants
n=5 Participants

PRIMARY outcome

Timeframe: Screening through week 21

Population: Antigens for each subject may be different. Outcomes were not tested past week 21.

Immune response measuring increased numbers of peptide specific T cells as calculated by the tetramer assay. The numbers of Peptide Specific T Cells are reported as the percent of CD8+ T cells that were p/HLA multimer positive for each antigen.

Outcome measures

Outcome measures
Measure
Subject 1
n=1 Participants
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 2
n=1 Participants
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 3
n=1 Participants
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 4
n=1 Participants
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-2, Day 1
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-3, Day 1
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-3, wk 21
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-4, wk 21
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-5, day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B44-1, day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-1, screening
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-2, screening
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-3, screening
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-4, screening
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-5, screening
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-6, screening
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-7, screening
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-1, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-3, screening
0.26 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-4, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-5, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-1, Day 1
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-4, Day 1
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-5, Day 1
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-6, Day 1
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-7, Day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-1, Day 1
0.4 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-3, Day 1
0.48 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-4, Day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-5, Day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-1, wk 14-15
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0.86 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-2, wk 14-15
0 percent of CD8+ T cells
0 percent of CD8+ T cells
2.66 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-3, wk 14-15
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-4, wk 14-15
0 percent of CD8+ T cells
0 percent of CD8+ T cells
4.01 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-5, wk 14-15
0 percent of CD8+ T cells
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-6, wk 14-15
0 percent of CD8+ T cells
2.4 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-7, wk 14-15
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-1, wk 14-15
0.32 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-3, wk 14-15
5.68 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-4, wk 14-15
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-5, wk 14-15
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-1, wk 17
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-2, wk 17
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-3, wk 17
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-4, wk 17
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-5, wk 17
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-6, wk 17
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-7, wk 17
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-1, wk 17
0.5 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-3, wk 17
1.81 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-4, wk 17
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-5, wk 17
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-1, wk 19
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-2, wk 19
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-3, wk 19
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-4, wk 19
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-5, wk 19
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-6, wk 19
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-7, wk 19
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-1, wk 19
0.32 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-3, wk 19
0.99 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-4, wk 19
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-5, wk 19
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-1, wk 21
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-2, wk 21
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-5, wk 21
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-6, wk 21
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-7, wk 21
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-1, wk 21
1.4 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-3, wk 21
0.16 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-4, wk 21
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B8-5, wk 21
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-1, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-2, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-3, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-4, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-5, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B44-1, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A31-1, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A31-2, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-1, day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-2, day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-3, day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-4, day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A31-1, day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A31-2, day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-1, wk 14
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-2, wk 14
35 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-3, wk 14
27.2 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-4, wk 14
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-5, wk 14
36.5 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B44-1, wk 14
22.7 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A31-1, wk 14
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A31-2, wk 14
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-1, wk 17
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A31-1, wk 17
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A31-2, wk 17
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-1, wk 19
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A31-1, wk 19
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A31-2, wk 19
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-1, wk 21
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-2, wk 21
34.7 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-3, wk 21
27.7 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-4, wk 21
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B15-5, wk 21
33.9 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen B44-1, wk 21
17.4 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A31-1, wk 21
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A31-2, wk 21
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-8, screening
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-9, screening
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-10, screening
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-11, screening
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-8, day 1
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-9, day 1
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-10, day 1
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-11, day 1
0 percent of CD8+ T cells
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-8, wk 14
0 percent of CD8+ T cells
1.15 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-9, wk 14
0 percent of CD8+ T cells
1.08 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-10, wk 14
0 percent of CD8+ T cells
0.9 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-11, wk 14
10.8 percent of CD8+ T cells
0.14 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-8, wk 17
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
0Antigen A3-9, wk 17
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-10, wk 17
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-11, wk 17
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-8, wk 19
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-9, wk 19
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-10, wk 19
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-11, wk 19
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-8, wk 21
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-9, wk 21
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-10, wk 21
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-11, wk 21
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-12, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-13, screening
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-12, day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-13, day 1
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-12, wk 14
0 percent of CD8+ T cells
Immune Response Measuring Increased Numbers of Peptide Specific T Cells as Calculated by the Tetramer Assay.
Antigen A3-13, wk 14
1.48 percent of CD8+ T cells

PRIMARY outcome

Timeframe: End of Study visit (10-28 days after last DC vaccine)

Population: Safety component is entered in the Adverse Events section.

Safety endpoint is type and number of adverse events. Tolerability endpoint is subject's completion or withdrawal from study treatment.

Outcome measures

Outcome measures
Measure
Subject 1
n=5 Participants
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 2
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 3
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 4
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Safety and Tolerability of the Mature Dendritic Cell Vaccine (mDC3/8 Vaccines).
Completed primary follow-up
3 Participants
Safety and Tolerability of the Mature Dendritic Cell Vaccine (mDC3/8 Vaccines).
Did not complete primary follow-up
2 Participants

SECONDARY outcome

Timeframe: At the End of Study Treatment visit (~10-28 Days after the last DC vaccine)

using RECIST 1.1

Outcome measures

Outcome measures
Measure
Subject 1
n=5 Participants
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 2
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 3
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 4
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Clinical Response to the mDC3/8 Vaccine(s)
Progressive disease
2 Participants
Clinical Response to the mDC3/8 Vaccine(s)
Not evaluable
3 Participants

SECONDARY outcome

Timeframe: Up to 30 weeks after the first mDC3/8 Vaccine

Population: Results are presented per subject.

based on RECIST 1.1 criteria, until occurrence of a censoring event

Outcome measures

Outcome measures
Measure
Subject 1
n=5 Participants
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 2
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 3
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 4
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Time to Progression Post-mDC3/8 Vaccine Administration
Subject 1
113 days
Time to Progression Post-mDC3/8 Vaccine Administration
Subject 2
NA days
Subject not evaluable.
Time to Progression Post-mDC3/8 Vaccine Administration
Subject 3
NA days
Subject not evaluable.
Time to Progression Post-mDC3/8 Vaccine Administration
Subject 4
NA days
Subject not evaluable.
Time to Progression Post-mDC3/8 Vaccine Administration
Subject 5
80 days

SECONDARY outcome

Timeframe: End of Study visit (10-28 days after last DC vaccine)

Population: These outcome measures are entered in the Adverse Events section.

Assessed through collection of Adverse Events.

Outcome measures

Outcome measures
Measure
Subject 1
n=5 Participants
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 2
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 3
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Subject 4
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Safety and Side Effect Profile of the Dendritic Cell Vaccine (mDC3/8 Vaccines) Administered to Patients Given After a Single Dose of Cyclophosphamide.
5 Participants

Adverse Events

Mature Dendritic Cell (DC) Vaccine

Serious events: 1 serious events
Other events: 5 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Mature Dendritic Cell (DC) Vaccine
n=5 participants at risk
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Tumor pain
20.0%
1/5 • Number of events 1 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).
Surgical and medical procedures
Surgical and medical procedures - Other (Palliative mass resection)
20.0%
1/5 • Number of events 2 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).

Other adverse events

Other adverse events
Measure
Mature Dendritic Cell (DC) Vaccine
n=5 participants at risk
Mature DC 7.5-15 million/peptide given day 1, every six weeks for 2 doses followed by standard of care anti PD-1 therapy Mature dendritic cell (DC) vaccine: Mature DC 7.5-15 million/peptide followed by 2 booster every six weeks of 1-5 million/peptide followed by standard of care anti PD-1 therapy. Cyclophosphamide 300mg/m\^2: administered prior to subject's first DC dose Pembrolizumab: administered 7-8 weeks after subject's last DC dose
Cardiac disorders
Cardiac disorders - other )tachycardia)
20.0%
1/5 • Number of events 1 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).
Gastrointestinal disorders
Abdominal Pain
20.0%
1/5 • Number of events 1 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).
Gastrointestinal disorders
Constipation
20.0%
1/5 • Number of events 1 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).
Gastrointestinal disorders
Dental Caries
20.0%
1/5 • Number of events 1 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).
Gastrointestinal disorders
Nausea
60.0%
3/5 • Number of events 4 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).
Gastrointestinal disorders
Toothache
20.0%
1/5 • Number of events 1 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).
General disorders
Chills
40.0%
2/5 • Number of events 7 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).
General disorders
Fatigue
40.0%
2/5 • Number of events 2 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).
General disorders
Flu like symptoms
20.0%
1/5 • Number of events 2 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).
Nervous system disorders
Headache
40.0%
2/5 • Number of events 3 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).
Nervous system disorders
Parethesia
20.0%
1/5 • Number of events 3 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).
Respiratory, thoracic and mediastinal disorders
Cough
20.0%
1/5 • Number of events 1 • Collection of AEs will begin at the time of the first apheresis procedure (Apheresis #1) and continue until subject discontinuation or the End of Study Visit. (week 30).

Additional Information

Regulatory Lead

University of Pennsylvania

Phone: 215-573-7101

Results disclosure agreements

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