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PF-08052667

Phase 1

Non-muscle Invasive Bladder Cancer | Small molecule | Oncology |Pfizer, Inc.|Last Updated: Aug 17, 2026

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment294

FDA Designations

No designations recorded

Clinical trial landscape

PF-08052667 · 1 trial · 1 indication

Phase 1 1
NCT07206225A Study to Learn About the Study Medicine PF-08052667 in People With Bladder CancerNon-muscle Invasive Bladder Cancer
RECRUITING294 Analytics
PHASE1RECRUITING
A Study to Learn About the Study Medicine PF-08052667 in People With Bladder Cancer
Non-muscle Invasive Bladder CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants with dose limiting toxicities (DLTs) in dose escalation in Part 1 and Part 2 participants only
Day of first dose (Day 1) Up to 21 days

Any AE occurring during the DLT observation period that is attributed to PF-08052667 and not to the underlying disease or other causes is considered a DLT. DLT rate estimated based on data from DLT-evaluable participants during the DLT evaluation period.

Number of participants with adverse events (AEs) in Part 1 and Part 2 participants only
From the first day through 30-37 days after the last study treatment, up to approximately 2 years

AEs as characterized by type, frequency, severity (CTCAE v5.0), seriousness, and relatedness to study drug(s).

Number of participants with laboratory abnormalities in Part 1 and Part 2 participants only
From the first day through 30-37 days after the last study treatment, up to approximately 2 years

Laboratory abnormalities as characterized by type, frequency, severity

Recurrence-free survival (RFS) in Part 3 participants only
Through end of study and up to approximately 2 years

RFS is defined as the time from the first dose until recurrence of high-grade disease, or death due to any cause, whichever occurs first

Event-free survival (EFS) in Part 3 participants only
Through end of study and up to approximately 2 years

EFS is defined as the time from the first dose until the first occurrence of an EFS event including progressive disease, recurrence of high-grade disease, or death due to any cause, whichever occurs first

Secondary Endpoints

PK: Maximum Observed Serum Concentration (Cmax)
From the first day through 30-37 days after the last study treatment
PK: Time to Reach Maximum Observed Serum Concentration (Tmax)
From the first day through 30-37 days after the last study treatment
PK: Minimum observed serum concentration (Ctrough)
From the first day through 30-37 days after the last study treatment
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Monotherapy Dose EscalationEXPERIMENTALPF-08052667 will be administered through intravesical instillation at defined dose levels. Dosing schedule is on Day 1, 8 and 15 of a 21-day cycle.
Combination Therapy Dose EscalationEXPERIMENTALPF-08052667 + BCG and/or sasanlimab of a 21-day cycle starting from Day 1
Dose Optimization and ExpansionEXPERIMENTALPF-08052667 monotherapy or in combination with BCG and/or sasanlimab at dose levels/schedules for PF-08052667 determined in Parts 1 and 2.

Interventions

NameTypeDescription
PF-08052667DRUGPF-08052667 will be administered intravesical (IVe) instillation following a PF-02921367 (DDM) bladder pre-wash
SasanlimabDRUGSasanlimab will be administered as subcutaneous (SC) injection
BCGDRUGBCG will be administered intravesical (IVe) instillation
PF-02921367DRUGPF-02921367 (DDM) is a 10-min pre- wash and will be administered intravesical (IVe) instillation
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites68

INCLUSION CRITERIA: 1. 18 years of age or older (or the minimum age of consent per local regulations) 2. Histological diagnosis of high-risk, non-muscle invasive urothelial carcinoma of the bladder defined according to the WHO grading system as carcinoma in situ (CIS), with or without concurrent T1...

Countries:United StatesFranceIsraelSouth KoreaSpainUnited Kingdom
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Recent Changes (Last 90 Days)

LOWAug 17, 2026NCT07206225lastUpdatePostDate: changed
LOWAug 17, 2026NCT07206225lastUpdatePostDate: changed
LOWJul 22, 2026NCT07206225lastUpdatePostDate: changed
LOWJul 22, 2026NCT07206225lastUpdatePostDate: changed

Frequently asked questions about PF-08052667

What is PF-08052667 used for?

PF-08052667 is an investigational small molecule being developed for the treatment of non-muscle invasive bladder cancer. It is currently in Phase 1 clinical development and is not yet approved by regulatory authorities. The drug is being studied in a clinical trial enrolling patients with this condition.

Who makes PF-08052667?

PF-08052667 is being developed by Pfizer, Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker symbol PFE. The company is conducting a Phase 1 clinical trial to evaluate the drug in patients with non-muscle invasive bladder cancer.

What phase is PF-08052667 in?

PF-08052667 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities and is still being studied in clinical trials. The ongoing Phase 1 trial is currently recruiting participants with non-muscle invasive bladder cancer.

What clinical trials is PF-08052667 in?

PF-08052667 is being studied in a Phase 1 clinical trial with the identifier NCT07206225, titled "A Study to Learn About the Study Medicine PF-08052667 in People With Bladder Cancer." The trial is recruiting participants in the United States, France, Israel, South Korea, Spain, and the United Kingdom, with a planned enrollment of 294 patients.

Is PF-08052667 FDA approved?

PF-08052667 is not FDA approved. It is an investigational drug currently in Phase 1 clinical development for non-muscle invasive bladder cancer. The drug is being evaluated in a clinical trial that is still recruiting participants, and it has not yet completed the clinical development process required for regulatory approval.