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Trial · NCT03136055

Pembrolizumab-based Therapy in Previously Treated High Grade Neuroendocrine Carcinomas

NCT03136055, Phase 2, Completed, University of California, San Francisco; results first posted 2022-12-27

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Pembrolizumab-based Therapy in Previously Treated High Grade Neuroendocrine Carcinomas. Trials, record NCT03136055. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03136055

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Pembrolizumab-based Therapy in Previously Treated High Grade Neuroendocrine Carcinomas
NCT number
NCT03136055
Status
Completed
Phases
Phase 2
Enrollment
36 participants, actual
Lead sponsor
University of California, San Francisco
Conditions
High Grade Malignant Neuroendocrine Carcinoma (Diagnosis)
Interventions
Pembrolizumab, Irinotecan, Paclitaxel
First posted
2017-05-02
Last updated
2022-12-27
Results first posted
2022-12-27

Source ClinicalTrials.gov

Registered outcomes4

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryOverall Response Rate (ORR)Approximately 2 years
ORR is defined as the percentage of participants in the analysis population who demonstrated complete response (CR) or partial response (PR) radiographically according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 as assessed by investigator. The analysis will include all subjects treated (ITT) who received at least one dose of the study treatment. If the final study consists of both Part A and Part B, the analysis will be done separately for each part.
SecondaryOverall Survival (OS)Over the duration of the study, which is estimated to be approximately 32 months.
Overall survival is defined as the time from the first day of study treatment with protocol therapy to the date of death due to any cause. Kaplan-Meier method will be used to summarize OS. Median OS and its 95% confidence interval will be obtained for Part A and B (if available) separately.
SecondaryDuration of Response (DOR)Over the duration of the study, which is estimated to be approximately 32 months.
Duration of Response is defined as the time from the date of first response (CR or PR) until the date of disease progression or death. Duration of response will be reported for Part A and B (if available) separately. Only patients who have a demonstrated response will be used in final analysis.
SecondaryProgression Free Survival (PFS)Over the duration of the study, which is estimated to be approximately 32 months.
Progression free survival is defined as the time from the first day of study treatment with protocol therapy to the date of documented tumor progression or death due to any cause, whichever occurs first, as determined by RECIST v1.1 for PFS. Subjects who did not progress or die will be censored on the date of their last evaluable tumor assessment. Kaplan-Meier method will be used to summarize progression median PFS with 95% confidence interval for Part A and B (if available) separately.

Outcomes4

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYOverall Response Rate (ORR)Approximately 2 yearspercentage of participantsNUMBER
SECONDARYOverall Survival (OS)Over the duration of the study, which is estimated to be approximately 32 months.monthsMEDIAN
SECONDARYDuration of Response (DOR)Over the duration of the study, which is estimated to be approximately 32 months.Only 1 participant in Part A, and 1 participant in Part B obtained CR or PRmonthsNUMBER
SECONDARYProgression Free Survival (PFS)Over the duration of the study, which is estimated to be approximately 32 months.monthsMEDIAN

Results by group8

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Overall Response Rate (ORR)Part A: Pembrolizumab Only795% Confidence Interval 0.02 to 33.9percentage of participants
Overall Response Rate (ORR)Part B: Pembrolizumab + Chemotherapy595% Confidence Interval 0 to 22.8percentage of participants
Overall Survival (OS)Part A: Pembrolizumab Only7.895% Confidence Interval 3.1 to NAmonths
Overall Survival (OS)Part B: Pembrolizumab + Chemotherapy4.895% Confidence Interval 4.1 to 8.2months
Duration of Response (DOR)Part A: Pembrolizumab Only18.9months
Duration of Response (DOR)Part B: Pembrolizumab + Chemotherapy6.71months
Progression Free Survival (PFS)Part A: Pembrolizumab Only1.895% Confidence Interval 1.7 to 21.4months
Progression Free Survival (PFS)Part B: Pembrolizumab + Chemotherapy295% Confidence Interval 1.9 to 3.4months

Participant flow6

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPart A: Pembrolizumab Only14
Overall StudySTARTEDPart B: Pembrolizumab + Chemotherapy22
Overall StudyCOMPLETEDPart A: Pembrolizumab Only14
Overall StudyCOMPLETEDPart B: Pembrolizumab + Chemotherapy22
Overall StudyNOT COMPLETEDPart A: Pembrolizumab Only0
Overall StudyNOT COMPLETEDPart B: Pembrolizumab + Chemotherapy0

Adverse events218

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAbdominal painGastrointestinal disordersPart A: Pembrolizumab Only5145
otherAbdominal painGastrointestinal disordersPart B: Pembrolizumab + Chemotherapy102211
otherDiarrheaGastrointestinal disordersPart A: Pembrolizumab Only2143
otherDiarrheaGastrointestinal disordersPart B: Pembrolizumab + Chemotherapy122220
otherNauseaGastrointestinal disordersPart A: Pembrolizumab Only4144
otherNauseaGastrointestinal disordersPart B: Pembrolizumab + Chemotherapy102211
otherConstipationGastrointestinal disordersPart A: Pembrolizumab Only5145
otherConstipationGastrointestinal disordersPart B: Pembrolizumab + Chemotherapy7229
otherVomitingGastrointestinal disordersPart A: Pembrolizumab Only2142
otherVomitingGastrointestinal disordersPart B: Pembrolizumab + Chemotherapy82212

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPart A: Pembrolizumab Only1114
Total, all-cause mortalityPart B: Pembrolizumab + Chemotherapy2122
Total, other adverse eventsPart A: Pembrolizumab Only1414
Total, other adverse eventsPart B: Pembrolizumab + Chemotherapy2222
Total, serious adverse eventsPart A: Pembrolizumab Only114
Total, serious adverse eventsPart B: Pembrolizumab + Chemotherapy622

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
37208512DERIVED

Source PubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons2

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Part A: Pembrolizumab Only vs Part B: Pembrolizumab + Chemotherapy: deaths from any causeTrial comparisons
Part A: Pembrolizumab Only vs Part B: Pembrolizumab + Chemotherapy: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT03136055

GET https://conductscience.org/api/trials/v1/NCT03136055/events?page=2