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Trial · NCT02335424

Study of Pembrolizumab (MK-3475) in Participants With Advanced Urothelial Cancer (MK-3475-052/KEYNOTE-052)

NCT02335424, Phase 2, Completed, Merck Sharp & Dohme LLC; results first posted 2019-07-05

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Study of Pembrolizumab (MK-3475) in Participants With Advanced Urothelial Cancer (MK-3475-052/KEYNOTE-052). Trials, record NCT02335424. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT02335424

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Trial

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

Title
Study of Pembrolizumab (MK-3475) in Participants With Advanced Urothelial Cancer (MK-3475-052/KEYNOTE-052)
NCT number
NCT02335424
Status
Completed
Phases
Phase 2
Enrollment
374 participants, actual
Lead sponsor
Merck Sharp & Dohme LLC
Conditions
Urothelial Cancer
Interventions
pembrolizumab
First posted
2015-01-09
Last updated
2023-03-02
Other registries' IDs
eudract:2014-002206-20
Results first posted
2019-07-05

Source ClinicalTrials.gov

Registered outcomes30

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

ListOutcomeTime frameDescription
PrimaryObjective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in All ParticipantsUp to approximately 80.5 months
ORR was determined in all participants and was defined as the percentage of participants who had a confirmed Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: At least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1 as assessed by Blinded Independent Central Review (BICR). Participants with missing data were considered non-responders. Per protocol, only data generated during the initial course of treatment contributed to the analysis.
Primary
Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥1%
Up to approximately 80.5 months
ORR was determined in participants who had a PD-L1 CPS of ≥1% as measured by immunohistochemistry assay. ORR was defined as the percentage of participants who had a confirmed Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: At least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1 as assessed by Blinded Independent Central Review (BICR). Participants with missing data were considered non-responders. Per protocol, only data generated during the initial course of treatment contributed to the analysis.
Primary
Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥10%
Up to approximately 80.5 months
ORR was determined in participants who had a PD-L1 CPS of ≥10% as measured by immunohistochemistry assay. ORR was defined as the percentage of participants who had a confirmed Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: At least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1 as assessed by Blinded Independent Central Review (BICR). Participants with missing data were considered non-responders. Per protocol, only data generated during the initial course of treatment contributed to the analysis.
SecondaryDuration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in All ParticipantsUp to approximately 80.5 months
DOR was determined in participants who demonstrated a confirmed Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions) per RECIST 1.1 as assessed by Blinded Independent Central Review (BICR). DOR was defined as the time from first documented evidence of a CR or PR until progressive disease (PD) or death and was calculated using the product-limit (Kaplan-Meier) method for censored data. Participants who had not progressed or died at the time of analysis were censored at the date of their last tumor assessment. Per RECIST 1.1, PD was a ≥20% increase in the sum of diameters of target lesions plus an absolute increase of ≥5 mm in the sum, or the appearance of ≥1 new lesions. Per protocol, only data generated during the initial course of treatment contributed to the analysis.
SecondaryDuration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥1%Up to approximately 80.5 months
DOR was determined in participants who had a PD-L1 CPS of ≥1%, as measured by immunohistochemistry assay, and had a confirmed Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions) per RECIST 1.1 as assessed by Blinded Independent Central Review (BICR). DOR was defined as the time from first documented evidence of a CR or PR until progressive disease (PD) or death and was calculated using the product-limit (Kaplan-Meier) method for censored data. Participants who had not progressed or died at the time of analysis were censored at the date of their last tumor assessment. Per RECIST 1.1, PD was a ≥20% increase in the sum of diameters of target lesions plus an absolute increase of ≥5 mm in the sum, or the appearance of ≥1 new lesions. Per protocol, only data generated during the initial course of treatment contributed to the analysis.
SecondaryDuration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥10%Up to approximately 80.5 months
DOR was determined in participants who had a PD-L1 CPS of ≥10%, as measured by immunohistochemistry assay, and had a confirmed Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions) per RECIST 1.1 as assessed by Blinded Independent Central Review (BICR). DOR was defined as the time from first documented evidence of a CR or PR until progressive disease (PD) or death and was calculated using the product-limit (Kaplan-Meier) method for censored data. Participants who had not progressed or died at the time of analysis were censored at the date of their last tumor assessment. Per RECIST 1.1, PD was a ≥20% increase in the sum of diameters of target lesions plus an absolute increase of ≥5 mm in the sum, or the appearance of ≥1 new lesions. Per protocol, only data generated during the initial course of treatment contributed to the analysis.
SecondaryProgression Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in All ParticipantsUp to approximately 80.5 months
PFS was determined in all participants. PFS was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first, per RECIST 1.1 as assessed by Blinded Independent Central Review (BICR). Per RECIST 1.1, PD was a ≥20% increase in the sum of diameters of target lesions plus an absolute increase of ≥5 mm in the sum, or the appearance of ≥1 new lesions. Time to scheduled tumor assessment visit rather than the actual tumor assessment visit was used in the analysis. PFS was calculated using the product-limit (Kaplan-Meier) method for censored data. Participants were censored at the date of their last assessment. Per protocol, only data generated during the initial course of treatment contributed to the analysis.
Secondary
Progression Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥1%
Up to approximately 80.5 months
PFS was determined in participants who had a PD-L1 CPS of ≥1% as measured by immunohistochemistry assay. PFS was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first, per RECIST 1.1 as assessed by Blinded Independent Central Review (BICR). Per RECIST 1.1, PD was a ≥20% increase in the sum of diameters of target lesions plus an absolute increase of ≥5 mm in the sum, or the appearance of ≥1 new lesions. Time to scheduled tumor assessment visit rather than the actual tumor assessment visit was used in the analysis. PFS was calculated using the product-limit (Kaplan-Meier) method for censored data. Participants were censored at the date of their last assessment. Per protocol, only data generated during the initial course of treatment contributed to the analysis.
Secondary
Progression Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥10%
Up to approximately 80.5 months
PFS was determined in participants who had a PD-L1 CPS of ≥10% as measured by immunohistochemistry assay. PFS was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first, per RECIST 1.1 as assessed by Blinded Independent Central Review (BICR). Per RECIST 1.1, PD was a ≥20% increase in the sum of diameters of target lesions plus an absolute increase of ≥5 mm in the sum, or the appearance of ≥1 new lesions. Time to scheduled tumor assessment visit rather than the actual tumor assessment visit was used in the analysis. PFS was calculated using the product-limit (Kaplan-Meier) method for censored data. Participants were censored at the date of their last assessment. Per protocol, only data generated during the initial course of treatment contributed to the analysis.
SecondaryOverall Survival (OS) in All ParticipantsUp to approximately 80.5 months
OS was determined for all participants and was defined as the time from randomization to death due to any cause. OS was calculated using the product-limit (Kaplan-Meier) method for censored data. Participants were censored at the date of their last assessment. Per protocol, only data generated during the initial course of treatment contributed to the analysis.

Outcomes30

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYObjective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in All ParticipantsUp to approximately 80.5 monthsAll participants who received at least one dose of study treatment during the initial course of treatmentPercentage of participantsNUMBER
PRIMARY
Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥1%
Up to approximately 80.5 monthsAll participants who received at least one dose of study treatment, during the initial course of treatment, and had a PD-L1 positive expression of ≥1% CPSPercentage of participantsNUMBER
PRIMARY
Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥10%
Up to approximately 80.5 monthsAll participants who received at least one dose of study treatment, during the initial course of treatment, and had a PD-L1 strong positive expression of ≥10% CPSPercentage of participantsNUMBER
SECONDARYDuration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in All ParticipantsUp to approximately 80.5 monthsAll participants who received at least one dose of study treatment, during the initial course of treatment, and who had a confirmed CR or confirmed PR.MonthsMEDIAN
SECONDARYDuration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥1%Up to approximately 80.5 monthsAll participants who received at least one dose of study treatment during the initial course of treatment, had a PD-L1 positive expression of ≥1% CPS, and who had a confirmed CR or PR.MonthsMEDIAN
SECONDARYDuration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥10%Up to approximately 80.5 monthsAll participants who received at least one dose of study treatment during the initial course of treatment, had a PD-L1 strong positive expression of ≥10% CPS, and who had a confirmed CR or PR.MonthsMEDIAN
SECONDARYProgression Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in All ParticipantsUp to approximately 80.5 monthsAll participants who received at least one dose of study treatment during the initial course of treatment.MonthsMEDIAN
SECONDARY
Progression Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥1%
Up to approximately 80.5 monthsAll participants who received at least one dose of study treatment, during the initial course of treatment, and had a PD-L1 positive expression of ≥1% CPS.MonthsMEDIAN
SECONDARY
Progression Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥10%
Up to approximately 80.5 monthsAll participants who received at least one dose of study treatment, during the initial course of treatment, and had a PD-L1 strong positive expression of ≥10% CPS.MonthsMEDIAN
SECONDARYOverall Survival (OS) in All ParticipantsUp to approximately 80.5 monthsAll participants who received at least one dose of study treatment during the initial course of treatmentMonthsMEDIAN

Results by group33

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

OutcomeGroupCategoryValueSpreadUnits
Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in All ParticipantsPembrolizumab 200 mg28.995% Confidence Interval 24.3 to 33.8Percentage of participants
Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥1%
Pembrolizumab 200 mg32.695% Confidence Interval 27.2 to 38.4Percentage of participants
Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥10%
Pembrolizumab 200 mg47.395% Confidence Interval 37.7 to 57.0Percentage of participants
Duration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in All ParticipantsPembrolizumab 200 mg33.495% Confidence Interval 18.2 to 48.7Months
Duration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥1%Pembrolizumab 200 mg35.895% Confidence Interval 20.4 to NAMonths
Duration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥10%Pembrolizumab 200 mgNA95% Confidence Interval 18.1 to NAMonths
Progression Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in All ParticipantsPembrolizumab 200 mg2.595% Confidence Interval 2.1 to 3.4Months
Progression Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥1%
Pembrolizumab 200 mg3.495% Confidence Interval 2.3 to 4.0Months
Progression Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) in Participants With a Programmed Cell Death Ligand 1 (PD-L1) Combined Positive Score (CPS) of ≥10%
Pembrolizumab 200 mg4.995% Confidence Interval 3.8 to 10.8Months
Overall Survival (OS) in All ParticipantsPembrolizumab 200 mg11.395% Confidence Interval 9.7 to 13.1Months

Participant flow5

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPembrolizumab 200 mg374
Overall StudyTreatedPembrolizumab 200 mg370
Overall StudyReceived Second Course TreatmentPembrolizumab 200 mg13
Overall StudyCOMPLETEDPembrolizumab 200 mg0
Overall StudyNOT COMPLETEDPembrolizumab 200 mg374

Adverse events434

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersPembrolizumab7337084
otherAnaemiaBlood and lymphatic system disordersSecond Course Pembrolizumab3133
otherEar swellingEar and labyrinth disordersPembrolizumab03700
otherEar swellingEar and labyrinth disordersSecond Course Pembrolizumab1131
otherHypothyroidismEndocrine disordersPembrolizumab4237042
otherHypothyroidismEndocrine disordersSecond Course Pembrolizumab1131
otherDiplopiaEye disordersPembrolizumab03700
otherDiplopiaEye disordersSecond Course Pembrolizumab1131
otherAbdominal painGastrointestinal disordersPembrolizumab4737057
otherAbdominal painGastrointestinal disordersSecond Course Pembrolizumab1131

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPembrolizumab305374
Total, all-cause mortalitySecond Course Pembrolizumab813
Total, other adverse eventsPembrolizumab342370
Total, other adverse eventsSecond Course Pembrolizumab1213
Total, serious adverse eventsPembrolizumab190370
Total, serious adverse eventsSecond Course Pembrolizumab613

Papers6

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
28967485RESULTPubMed
31395089DERIVEDPubMed
32552471RESULTPubMed
35247908DERIVEDPubMed
36494006DERIVEDPubMed
37699333DERIVEDPubMed

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
Pembrolizumab vs Second Course Pembrolizumab: deaths from any causeTrial comparisons
Pembrolizumab vs Second Course Pembrolizumab: 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/NCT02335424

GET https://conductscience.org/api/trials/v1/NCT02335424/registered?page=2