Trial of Local Cystoscopic Injection of Tremelimumab Plus Systemic Durvalumab for High Risk Non-Muscle Invasive Bladder Cancer (Rideau)
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- STATUS
- Recruiting
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- End date
- Sep 1, 2026
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- participants needed
- 48
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- sponsor
- University of British Columbia
Summary
We will conduct a Phase I trial testing whether local cystoscopic injection of tremelimumab into the bladder wall in combination with systemic administration of durvalumab in localized bladder cancer will stimulate an effective anti-tumour immune response with minimal systemic immune response and clinical toxicity.
Description
The Rideau trial is a multi-centre, prospective, randomized phase I/II trial to determine whether the local cystoscopic injection of tremelimumab into the bladder wall in combination with systemic administration of durvalumab in localized bladder cancer will stimulate an effective anti-tumour immune response with minimal systemic immune response and clinical toxicity. The study will be broken down into a dose escalation phase, to determine the recommended phase II dose of each drug in combination, and a dose expansion phase, to demonstrate an early signal of treatment efficacy (complete response at 6 months) in patients with BCG-unresponsive carcinoma in situ of the bladder. A maximum of 48 patients will be enrolled from 3 participating sites across Canada. All patients with histologically proven bladder cancer scheduled to undergo radical cystectomy at the trial hospital will be eligible for the dose escalation phase, while patients must have histologically proven, recurrent urothelial carcinoma in situ of the bladder to be eligible for the dose expansion phase. The dose escalation phase will run with between 12-36 patients who will receive 18 weeks of follow-up to determine the recommended phase II dose. Twelve patients will be enrolled in the dose expansion phase. These patients will receive follow-up every 4 weeks for 48 weeks, and then every 3 months for a total follow-up period of 24 months.
Details
| Condition | Bladder Cancer, High-Risk Cancer, Tremelimumab, Durvalumab, Non-muscle Invasive |
|---|---|
| Treatment | Tremelimumab |
| Clinical Study Identifier | NCT05120622 |
| Sponsor | University of British Columbia |
| Last Modified on | 14 March 2022 |
Eligibility
How to participate?
Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.
Learn moreIf you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.
Learn moreComplete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.
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