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Neoadjuvant Sasanlimab With Radiation as an in Situ Vaccine for Cisplatin-ineligible Muscle Invasive Bladder Cancer — RAD-VACCINE  

Urothelial Carcinoma Bladder Clinical Trial

Official title:
A Phase II Clinical Trial of Neoadjuvant Sasanlimab and Stereotactic Body Radiation Therapy as an in Situ Vaccine for Cisplatin-ineligible Muscle Invasive Bladder Cancer

Clinical Trial Summary

This is a prospective, single-institution, single-arm, phase II clinical trial that tests a novel strategy of neoadjuvant Sasanlimab, an immune checkpoint inhibitor (ICI), in combination with stereotactic body radiation therapy as an in-situ vaccination in patients, who are ineligible to receive cisplatin-based chemotherapy and undergoing radical cystectomy for muscle-invasive bladder cancer.

Clinical Trial Description

Patients with cT2-T4a, N0, M0 urothelial bladder carcinoma (UBC) after transurethral resection of the bladder will receive 2 doses of sasanlimab (PF-06801591) at the dose of 300mg subcutaneously, followed by 3 doses of radiation (8Gy x 3) prior to surgery (radical cystectomy). Cystectomy will be planned to be done within 6 weeks of the last dose of sasanlimab. Pathologic complete response (pT0) is the primary endpoint, in addition to a safety lead-in endpoint consisting of a composite outcome of feasibility and safety. Exploratory biomarker analysis on tissue/blood samples will include genomic and immune-system profiling in tumor and blood before and after sasanlimab/radiation therapy, and after radical cystectomy. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05241340
Study type Interventional
Source The Methodist Hospital Research Institute
Contact Maryam Anis
Phone 3462386123
Email manis2@houstonmethodist.org
Status Recruiting
Phase Phase 2
Start date February 15, 2022
Completion date August 1, 2025
View Details
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