Trial Outcomes & Findings for Pembrolizumab With Combination Chemotherapy in Treating Participants With Locally Advanced or Metastatic Small Cell/Neuroendocrine Cancers of Urothelium or Prostate (NCT NCT03582475)

NCT ID: NCT03582475

Last Updated: 2025-11-12

Results Overview

Durable Response Rate (DRR) defined as the proportion of patients who achieved a confirmed complete or partial response (CR or PR) and maintained that response for at least 6 months.

Recruitment status

ACTIVE_NOT_RECRUITING

Study phase

PHASE1

Target enrollment

15 participants

Primary outcome timeframe

At 6 months

Results posted on

2025-11-12

Participant Flow

This trial was opened for accrual with the first enrollment on January 11, 2019. The study closed to accrual on May 5, 2022.

Participant milestones

Participant milestones
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Treatment Period
STARTED
7
8
Treatment Period
COMPLETED
7
7
Treatment Period
NOT COMPLETED
0
1
Follow-up Period
STARTED
7
8
Follow-up Period
COMPLETED
7
7
Follow-up Period
NOT COMPLETED
0
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Treatment Period
Withdrawal by Subject
0
1
Follow-up Period
Withdrawal by Subject
0
1

Baseline Characteristics

Pembrolizumab With Combination Chemotherapy in Treating Participants With Locally Advanced or Metastatic Small Cell/Neuroendocrine Cancers of Urothelium or Prostate

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
n=8 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Total
n=15 Participants
Total of all reporting groups
Age, Customized
>50<=60 years
1 Participants
n=10 Participants
3 Participants
n=10 Participants
4 Participants
n=20 Participants
Age, Customized
>60<=70 years
3 Participants
n=10 Participants
4 Participants
n=10 Participants
7 Participants
n=20 Participants
Age, Customized
>70<=80 years
2 Participants
n=10 Participants
1 Participants
n=10 Participants
3 Participants
n=20 Participants
Age, Customized
>80 years
1 Participants
n=10 Participants
0 Participants
n=10 Participants
1 Participants
n=20 Participants
Sex: Female, Male
Female
1 Participants
n=10 Participants
0 Participants
n=10 Participants
1 Participants
n=20 Participants
Sex: Female, Male
Male
6 Participants
n=10 Participants
8 Participants
n=10 Participants
14 Participants
n=20 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=10 Participants
1 Participants
n=10 Participants
2 Participants
n=20 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
6 Participants
n=10 Participants
7 Participants
n=10 Participants
13 Participants
n=20 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=10 Participants
0 Participants
n=10 Participants
0 Participants
n=20 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=10 Participants
0 Participants
n=10 Participants
0 Participants
n=20 Participants
Race (NIH/OMB)
Asian
0 Participants
n=10 Participants
0 Participants
n=10 Participants
0 Participants
n=20 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=10 Participants
0 Participants
n=10 Participants
0 Participants
n=20 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=10 Participants
1 Participants
n=10 Participants
1 Participants
n=20 Participants
Race (NIH/OMB)
White
7 Participants
n=10 Participants
7 Participants
n=10 Participants
14 Participants
n=20 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=10 Participants
0 Participants
n=10 Participants
0 Participants
n=20 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=10 Participants
0 Participants
n=10 Participants
0 Participants
n=20 Participants
Region of Enrollment
United States
7 participants
n=10 Participants
8 participants
n=10 Participants
15 participants
n=20 Participants

PRIMARY outcome

Timeframe: At 6 months

Population: one patient withdrew Cohort 2

Durable Response Rate (DRR) defined as the proportion of patients who achieved a confirmed complete or partial response (CR or PR) and maintained that response for at least 6 months.

Outcome measures

Outcome measures
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Durable Response Rate (DRR) (Cohorts 1 and 2)
100 percentage of participants
66.7 percentage of participants

PRIMARY outcome

Timeframe: Up to 3 years

Population: one patient withdrew Cohort 2

Overall Response Rate (ORR) defined as patients by Response Evaluation Criteria in Solid Tumors (RECIST) v 1.1 exhibited a complete or partial response (CR or PR). CR defined as disappearance of all target lesions. PR defined as \>= 30% decrease in sum of the longest diameter of target lesions. .

Outcome measures

Outcome measures
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Overall Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 (Cohorts 1 and 2)
0.43 proportion of participents
0.43 proportion of participents

PRIMARY outcome

Timeframe: From the first documented CR or PR up to 3 years

Population: one patient withdrew Cohort 2

Duration of Response (DOR) defined as the time from the first documented CR or PR until radiograph disease progression or Prostate-Specific Antigen (PSA) progression.

Outcome measures

Outcome measures
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Duration of Response (DOR) Per RECIST 1.1 (Cohorts 1 and 2)
NA Months
Median DOR is Not Available (NA) because none of the patients with a confirmed CR or PR had experienced radiographic or PSA progression at data cutoff. Over 50% remained progression-free, so the median could not be estimated.
12.6 Months
Interval 3.15 to
median, upper and lower bounds of 95% Confidence Interval could not be estimated due to insufficient number of participants with events

PRIMARY outcome

Timeframe: 12 months and 24 months.

Population: Proportion of Participants with Progression Free Survival at 12 and 24 Months was measured using sample size of each cohort and incidence of events to provide confidence intervals.

Progression Free Survival (PFS) defined as the time from the first day of study treatment to first documented disease progression by Response Evaluation Criteria in Solid Tumors (RECIST) v 1.1 as a 20% increase in the sum of the longest diameter of target lesions, a measurable increase in a non-target lesion, or the appearance of new lesion(s).

Outcome measures

Outcome measures
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Proportion of Participants With Progression Free Survival at 12 and 24 Months
12 months
0.86 Proportion of patients
Interval 0.63 to 1.0
.43 Proportion of patients
Interval 0.18 to 1.0
Proportion of Participants With Progression Free Survival at 12 and 24 Months
24 months
0.86 Proportion of patients
Interval 0.63 to 1.0
0.14 Proportion of patients
Interval 0.02 to 0.88

PRIMARY outcome

Timeframe: 12 months and 24 months.

Population: one patient withdrew Cohort 2

Overall Survival (OS) defined as the time from the first day of study treatment to the time of death from any cause.

Outcome measures

Outcome measures
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Proportion of Participants With Overall Survival of Cohort 1 and 2 at 12 and 24 Months
12 months
0.86 Proportion of patients
Interval 0.63 to 1.0
0.71 Proportion of patients
Interval 0.45 to 1.0
Proportion of Participants With Overall Survival of Cohort 1 and 2 at 12 and 24 Months
24 months
0.86 Proportion of patients
Interval 0.63 to 1.0
0.57 Proportion of patients
Interval 0.3 to 1.0

PRIMARY outcome

Timeframe: 12 months and 24 months.

Population: The Primary outcome of Radiographic PFS (rPFS) with response criteria based off Prostate Cancer Working Group 3 (PCWG3) only applies to Prostate cancer patients enrolled into cohort 2. This criteria does not apply to Bladder cancer patients that enrolled in Cohort 1.

PCWG3 is specifically designed for prostate cancer and incorporates both soft tissue and bone response assessment. RECIST 1.1 is used for evaluating responses in solid tumors, while PCWG3 combines Response evaluation criteria in solid tumors (RECIST)1.1 for soft tissue assessment with specific criteria for bone scans. The PCWG3 response criteria was used to report the portion of participants with rPFS at their 12 and 24 month assessments.

Outcome measures

Outcome measures
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Portion of Participants With Radiographic Progression-free Survival (rPFS) by Prostate Cancer Working Group 3 (PCWG3) at 12 and 24 Months (Cohort 2)
12 Months
.43 proportion of participants
Interval 0.18 to 1.0
Portion of Participants With Radiographic Progression-free Survival (rPFS) by Prostate Cancer Working Group 3 (PCWG3) at 12 and 24 Months (Cohort 2)
24 Months
0.14 proportion of participants
Interval 0.02 to 0.88

PRIMARY outcome

Timeframe: Up to 3 years

Outcome measures

Outcome measures
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Percentage of Participants With Adverse Events Per Common Terminology Criteria for Adverse Events (CTCAE) Version 4.0 (Cohorts 1 and 2)
Grade 3 or higher
57 percentage of participants
25 percentage of participants
Percentage of Participants With Adverse Events Per Common Terminology Criteria for Adverse Events (CTCAE) Version 4.0 (Cohorts 1 and 2)
All Grades
100 percentage of participants
75 percentage of participants

OTHER_PRE_SPECIFIED outcome

Timeframe: at 12 months

Population: PD-L1% (defined CPS\>10). combined positive score (CPS). CPS defined as number of PD-L1 staining cells in tumor, lymphocytes, and macrophages divided by total number viable tumor cells x 100.

Outcome measures

Outcome measures
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
n=7 Participants
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Percentage of Participants With Programmed Death-ligand 1 (PD-L1) Combined Positive Score (CPS) Greater Than 10, at 12 Months
42.8 Percentage of patients with (CPS) > 10
37.5 Percentage of patients with (CPS) > 10

Adverse Events

Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer

Serious events: 7 serious events
Other events: 7 other events
Deaths: 3 deaths

Cohort 2: Small Cell or Neuroendocrine Prostate Cancer

Serious events: 7 serious events
Other events: 6 other events
Deaths: 3 deaths

Serious adverse events

Serious adverse events
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
n=7 participants at risk
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
n=8 participants at risk
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Respiratory, thoracic and mediastinal disorders
Aspiration pneumonia
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Cardiac disorders
Artirial Fibrilation
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Gastrointestinal disorders
Dysphagia
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Metabolism and nutrition disorders
Electrolyte Toxicity
14.3%
1/7 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
General disorders
Fatigue
14.3%
1/7 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Renal and urinary disorders
Hydronephrosis
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Cardiac disorders
Myocardial infarction
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Renal and urinary disorders
Pyelonephritis
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Nervous system disorders
Seizure
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Renal and urinary disorders
Sepsis due to urinary tract infection
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Renal and urinary disorders
Urinary tract infection
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Renal and urinary disorders
Urinary tract obstruction
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.

Other adverse events

Other adverse events
Measure
Cohort 1: Metastatic or Locally Advanced Naive Small Cell Bladder Cancer
n=7 participants at risk
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3 and cisplatin IV or carboplatin IV on day 1 (Cohort 1). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity. Carboplatin: Given IV Cisplatin: Given IV Docetaxel: Given IV Etoposide: Given IV Pembrolizumab: Given IV
Cohort 2: Small Cell or Neuroendocrine Prostate Cancer
n=8 participants at risk
Participants receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks for 2 years in the absence of disease progression or unacceptable toxicity. Participants also receive standard of care chemotherapy comprising etoposide IV on days 1-3, carboplatin IV on day 1, and docetaxel IV on day 1 (Cohort 2). Treatment repeats every 3 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Gastrointestinal disorders
Dry Mouth
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
25.0%
2/8 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Nervous system disorders
Dysgeusia
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Respiratory, thoracic and mediastinal disorders
Dyspnea
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
25.0%
2/8 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
General disorders
Edema
42.9%
3/7 • Number of events 4 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
25.0%
2/8 • Number of events 3 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Metabolism and nutrition disorders
Electrolyte toxicity
28.6%
2/7 • Number of events 11 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 3 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Investigations
Elevated liver function tests
14.3%
1/7 • Number of events 6 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Eye disorders
Eye disorders
28.6%
2/7 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 4 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
General disorders
Fatigue
100.0%
7/7 • Number of events 10 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
50.0%
4/8 • Number of events 6 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
General disorders
Flu like symptoms
57.1%
4/7 • Number of events 4 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 3 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Gastrointestinal disorders
Gastroenteritis
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Gastrointestinal disorders
Groin pain
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
37.5%
3/8 • Number of events 3 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Skin and subcutaneous tissue disorders
Grover's disease
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Ear and labyrinth disorders
Hearing impaired
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Gastrointestinal disorders
Heartburn
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Blood and lymphatic system disorders
Hematologic toxicity
28.6%
2/7 • Number of events 12 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
37.5%
3/8 • Number of events 4 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Respiratory, thoracic and mediastinal disorders
Hiccups
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Renal and urinary disorders
Hydronephrosis
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Metabolism and nutrition disorders
Hypoalbuminea
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Endocrine disorders
Hypothyroidism
28.6%
2/7 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Blood and lymphatic system disorders
Incisional pain
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Gastrointestinal disorders
Indigestion
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
General disorders
Injection site reaction
28.6%
2/7 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
37.5%
3/8 • Number of events 5 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Psychiatric disorders
Insomnia
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Psychiatric disorders
Irritability
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
25.0%
2/8 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Musculoskeletal and connective tissue disorders
Musculoskeletal pain
28.6%
2/7 • Number of events 3 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
50.0%
4/8 • Number of events 8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Gastrointestinal disorders
Nausea
85.7%
6/7 • Number of events 8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
50.0%
4/8 • Number of events 4 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Gastrointestinal disorders
Oral Mucositis
28.6%
2/7 • Number of events 4 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Nervous system disorders
Peripheral sensory neuropathy
71.4%
5/7 • Number of events 5 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
50.0%
4/8 • Number of events 5 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Respiratory, thoracic and mediastinal disorders
Pneumothorax
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Skin and subcutaneous tissue disorders
Pruritus
28.6%
2/7 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Skin and subcutaneous tissue disorders
Rash
28.6%
2/7 • Number of events 3 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
50.0%
4/8 • Number of events 8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Gastrointestinal disorders
Rectal fullness
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Renal and urinary disorders
Renal stone
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Respiratory, thoracic and mediastinal disorders
Shallow breathing
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Infections and infestations
Sinusitis
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Skin and subcutaneous tissue disorders
Skin hypopigmentation
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Skin and subcutaneous tissue disorders
Skin telangiectasis
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Respiratory, thoracic and mediastinal disorders
Sore throat
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Cardiac disorders
Tachycardia
28.6%
2/7 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Respiratory, thoracic and mediastinal disorders
Tachypnea
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Reproductive system and breast disorders
Testicular pain
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Ear and labyrinth disorders
Tinnitus
28.6%
2/7 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Nervous system disorders
Tremor
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Renal and urinary disorders
Urinary Tract Infection
28.6%
2/7 • Number of events 4 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 3 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Reproductive system and breast disorders
Vaginal prolapse
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Gastrointestinal disorders
Viral gastroenteritis
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Gastrointestinal disorders
Vomiting
57.1%
4/7 • Number of events 4 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
General disorders
Weight loss
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Respiratory, thoracic and mediastinal disorders
Bronchial thickening
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Respiratory, thoracic and mediastinal disorders
Chest pain
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
25.0%
2/8 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Respiratory, thoracic and mediastinal disorders
Chest tightness
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Nervous system disorders
Concentration impairment
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Gastrointestinal disorders
Constipation
57.1%
4/7 • Number of events 5 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
25.0%
2/8 • Number of events 3 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Respiratory, thoracic and mediastinal disorders
Cough
42.9%
3/7 • Number of events 3 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Infections and infestations
Covid-19 infection
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Investigations
Creatinine increased
42.9%
3/7 • Number of events 5 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Renal and urinary disorders
Cystitis noninfective
28.6%
2/7 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
25.0%
2/8 • Number of events 6 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Metabolism and nutrition disorders
Dehydration
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Gastrointestinal disorders
Diarrhea
57.1%
4/7 • Number of events 6 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
37.5%
3/8 • Number of events 3 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Ear and labyrinth disorders
Dizziness
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Skin and subcutaneous tissue disorders
Body odor
0.00%
0/7 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Reproductive system and breast disorders
Breast nodularity
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Metabolism and nutrition disorders
Anorexia
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
25.0%
2/8 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Psychiatric disorders
Anxiety
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Metabolism and nutrition disorders
B-12 deficiency
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
12.5%
1/8 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Musculoskeletal and connective tissue disorders
Back pain
42.9%
3/7 • Number of events 3 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
25.0%
2/8 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Musculoskeletal and connective tissue disorders
Bicep tendon tear
14.3%
1/7 • Number of events 1 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
0.00%
0/8 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Skin and subcutaneous tissue disorders
Alopecia
71.4%
5/7 • Number of events 5 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
25.0%
2/8 • Number of events 2 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
Blood and lymphatic system disorders
Anemia
85.7%
6/7 • Number of events 12 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.
50.0%
4/8 • Number of events 5 • Adverse events are collected form consent to 90 days post treatment with a median follow up of 34 months.

Additional Information

Sara Rodriguez

UCLA / Department of Radiology

Phone: 310-794-2877

Results disclosure agreements

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