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With Bladder Cancer","A PHASE 1, OPEN-LABEL, DOSE ESCALATION AND DOSE EXPANSION STUDY TO EVALUATE THE SAFETY, TOLERABILITY, PHARMACOKINETICS, AND ANTITUMOR ACTIVITY OF PF-08052667 AS A SINGLE AGENT AND IN COMBINATION THERAPY IN PARTICIPANTS 18 YEARS OF AGE AND OLDER WITH BLADDER CANCER","INCLUSION CRITERIA:\n\n1. 18 years of age or older (or the minimum age of consent per local regulations)\n2. 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\u002FTa papillary disease. Note: High-grade T1\u002FTa papillary disease, in the absence of CIS, may be eligible for certain cohorts in Part 2 and 3\n3. BCG unresponsive and BCG-exposed cohorts should have persistent or recurrent disease after receiving at least 5 out of 6 doses of the BCG induction therapy.\n4. Have refused or are ineligible or not appropriate for radical cystectomy\n5. Tissue Requirement: Available tumor tissue within the last 6 months. On-treatment tumor biopsy is optional, unless mandated based on emerging data, or participating in the Biomarker Cohort, or for disease assessment\n6. ECOG PS 0 or 1\n\nEXCLUSION CRITERIA:\n\n1. Concomitant anti-cancer therapy for Non-Muscle Invasive Bladder Cancer (NMIBC); and prior radiation therapy to the bladder are not allowed\n2. Renal or hepatic impairment; and hematologic abnormalities as defined in the protocol\n3. Participants with active, uncontrolled infection as specified in the protocol","ALL","18 Years",{"count":437,"type":438},294,"ESTIMATED","INTERVENTIONAL",[441],"PHASE1","The purpose of this study is to learn how a new medicine called PF-08052667 works when used by itself or together with another medicine called Bacillus Calmette Guerin (BCG), and\u002For a medicine called sasanlimab.\n\nThis study is for adults who have a type of bladder cancer that hasn't spread into the muscle layer of the bladder but is more likely to come back or grow. It includes people whose cancer has come back or hasn't gone away after receiving standard treatments like BCG. It may also include people who, based on their doctor's opinion, cannot receive standard treatments or those treatments are not available to them.\n\nThe study has three parts:\n\n* Part 1 (monotherapy dose escalation) will test PF-08052667 as a single-agent at increasing dose levels in participants with certain bladder cancer whose disease has worsened on or after standard treatments.\n* Part 2 (combination dose escalation) will test PF-08052667 in combination with BCG and\u002For sasanlimab (fixed dose) in participants with certain bladder cancer whose disease has worsened on or after standard treatments.\n* Part 3 (dose optimization and expansion) will further test PF-08052667 as a single agent or in combination with BCG and\u002For sasanlimab, at the dose(s) based on findings from Part 1 and Part 2 in participants with certain bladder cancer including those who has never received standard treatments.\n\nAll participants will receive the study drug PF-08052667. Only participants in Part 2 and Part 3 of the study will also receive BCG and\u002For sasanlimab. PF-08052667 will be given as an intravesical infusion, which means it will be injected directly into the bladder. Sasanlimab will be given as a subcutaneous injection, which means it will be injected under the skin.\n\nFor all parts, treatment with study medicines will continue until either a participant has decided to stop taking part in the study or is asked to leave the study for various reasons or up to about 2 years, whichever occurs first. Duration of trial participation for each participant will vary as long-term follow-up will continue after treatment discontinuation until loss to-follow-up or death, or until the study is stopped by the sponsor.",[444],"Non-muscle Invasive Bladder Cancer",[446,447,448,449,450,451,452,453],"NMIBC","Non-Muscle Invasive Bladder Cancer","Bladder Cancer","Bladder Tumors","Bladder Neoplasms","Malignant Tumor of Urinary Bladder","Urinary Bladder Cancer","Cancer of Bladder","2026-04-20",{"date":456,"type":457},"2026-04-21","ACTUAL",{"date":459,"type":457},"2025-11-06",{"date":461,"type":438},"2033-01-28",{"name":5,"class":6},47]