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PF-06801591

Phase 3

Non-muscle Invasive Bladder Cancer | Small molecule | Oncology |Pfizer, Inc.|Last Updated: Jan 22, 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 Enrollment1,068
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04165317A Study of Sasanlimab in People With Non-muscle Invasive Bladder CancerPHASE3 ACTIVE NOT_RECRUITING 1,068Dec 30, 2019Dec 2, 2026Jan 22, 2026194 United States, Australia +12
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Study Endpoints
Primary Endpoints
Cohort A: Event Free Survival (EFS) as Assessed by the Investigator: Arm A Versus Arm C
From randomization (Day 1) to first documentation of high-grade disease, progression of disease, persistence of CIS or death due to any cause, whichever occurred first (maximum follow up duration was up to 257.1 weeks)

EFS: time from randomization till recurrence of high-grade disease, progression of disease, persistence of carcinoma in situ (CIS), death due to any cause, whichever occurred first. Recurrence of high-grade disease: re-appearance of high-grade disease after randomization/study intervention initiation, re-appearance of high-grade disease after complete response (CR) for CIS participants or re-appearance of high-grade disease before CR for CIS participants and concurrent papillary disease at baseline. Progression of disease defined as any of following: Lamina propria invasion, muscle invasive disease, lymph node positive disease, metastatic disease, high-grade stage of bladder cancer (non-invasive papillary carcinoma \[Ta\] or invasion into the lamina propria without invasion into the muscularis propria \[T1\]) in participants with CIS only at baseline before achieving CR. Persistence of CIS: persistent CIS after induction, re-induction. EFS estimated using Kaplan-Meier analysis.

Secondary Endpoints
Cohort A: EFS as Assessed by the Investigator: Arm B Versus Arm C
From randomization (Day 1) to the first documentation of high-grade disease, progression of disease, persistence of CIS or death due to any cause, whichever occurred first (maximum follow up duration was up to 257.1 weeks)
Cohort A: Overall Survival (OS) for Participants: Arm A Versus Arm C
From randomization (Day 1) until date of death due to any cause or censoring date
Cohort A: OS of Participants: Arm B Versus Arm C
From randomization (Day 1) until date of death due to any cause or censoring date
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
PF-06801591 + BCG induction and maintenanceEXPERIMENTALPF-06801591 in combination with Bacillus Calmette Guerin(induction+maintenance).
PF-06801591 + BCG induction onlyEXPERIMENTALPF-06801591 in combination with Bacillus Calmette Guerin (induction only).
BCG induction and maintenanceACTIVE_COMPARATORBacillus Calmette Guerin (induction and maintenance).
BCG Unresponsive CISEXPERIMENTALPF-06801591
BCG Unresponsive NMIBCEXPERIMENTALPF-06801591
Interventions
NameTypeDescription
PF-06801591DRUGA monoclonal antibody (mAb) that blocks the interaction between PD-1 and PD-L1/PD-L2.
Bacillus Calmette-GuerinDRUGImmunotherapy treatment approved by FDA for patients with high-risk non-muscle invasive bladder cancer
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites194

Inclusion Criteria: * Histological confirmed diagnosis of high risk non-muscle invasive transitional cell carcinoma (TCC) of the urothelium of the urinary bladder (tumors of mixed transitional/non-transitional cell histology are allowed, but TCC must be the predominant histology) * Complete resecti...

Countries:United StatesAustraliaBelgiumCanadaChinaFranceGermanyItalyJapanPolandRussiaSouth KoreaSpainUnited Kingdom
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT04165317primaryCompletionDate: changed
LOWMay 24, 2026NCT04165317studyFirstPostDate: changed