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Enfortumab vedotin

Phase 3

Urothelial Cancer | Small molecule | Oncology |Merck & Company, Inc.|Last Updated: May 29, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedACTIVE_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment886
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04223856Enfortumab Vedotin and Pembrolizumab vs. Chemotherapy Alone in Untreated Locally Advanced or Metastatic Urothelial CancerPHASE3 ACTIVE NOT_RECRUITING 886Mar 30, 2020Mar 1, 2028May 29, 2026260 United States, Argentina +23
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Study Endpoints
Primary Endpoints
Progression-Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors (RECIST) Version (v) 1.1 by Blinded Independent Central Review (BICR)
From the date of randomization to first documentation of PD or death due to any cause, whichever occurred first (maximum exposure to treatment was up to 39.2 months)

PFS was defined as the time from date of randomization to first documentation of disease progression (PD), or to death due to any cause, whichever occurred first. PD: at least a 20 percent (%) increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 millimeter (mm). PD could also be unequivocal progression of non-target lesions or the presence of unequivocal new lesions. Kaplan-Meier method was used for analysis.

Overall Survival (OS)
From randomization to date of death due to any cause or censoring date, whichever occurred first (maximum exposure to treatment was up to 39.2 months)

OS was defined as the time from the date of randomization to the date of death from any cause. In the absence of death, OS was censored at the date the participant was last known to be alive. Kaplan-Meier method was used for analysis.

Secondary Endpoints
Percentage of Participants With Objective Response Rate (ORR) Per RECIST v1.1 by BICR
From first dose till CR/PR or PD or death, whichever occurred first (maximum up to approximately 7.4 years)
Time to Pain Progression (TTPP)
From the date of randomization to date of pain progression (maximum up to approximately 7.4 years)
Change From Baseline in Worst Pain Using BPI-SF at Week 26
Baseline, Week 26
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Arm AEXPERIMENTALEnfortumab vedotin + pembrolizumab
Arm BACTIVE_COMPARATORGemcitabine + cisplatin or carboplatin
Interventions
NameTypeDescription
Enfortumab vedotinDRUGEnfortumab vedotin administered as an IV infusion on Days 1 and 8 of every 3-week cycle
PembrolizumabDRUGIV infusion on Day 1 of every 3-week cycle
CisplatinDRUGadministered as IV infusion on Day 1 of each 3-week cycle
CarboplatinDRUGDosed according to local guidelines and will be administered as IV infusion on Day 1 of each 3-week cycle
GemcitabineDRUGIV infusion on Days 1 and 8 of every 3 week cycle
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites260

Inclusion Criteria: * Histologically documented, unresectable locally advanced or metastatic urothelial carcinoma * Measurable disease by investigator assessment according to RECIST v1.1 * Participants with prior definitive radiation therapy must have measurable disease per RECIST v1.1 that is o...

Countries:United StatesArgentinaAustraliaBelgiumCanadaChinaCzechiaDenmarkFranceGermanyHungaryIsraelItalyJapanNetherlandsPolandRussiaSingaporeSouth KoreaSpainSwitzerlandTaiwanThailandTurkey (Türkiye)United Kingdom
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Recent Changes (Last 90 Days)
LOWMay 29, 2026NCT04223856lastUpdatePostDate: changed
LOWMay 29, 2026NCT04223856lastUpdatePostDate: changed
LOWMay 29, 2026NCT04223856lastUpdatePostDate: changed