Intravesical nadofaragene firadenovec gene therapy for BCG-unresponsive non-muscle-invasive bladder cancer: a single-arm, open-label, repeat-dose clinical trial
Phase 3N = 157NCT02773849
- Population
- Adults with BCG-unresponsive non-muscle-invasive bladder cancer, ECOG status 2 or less; 157 enrolled and treated, 151 in the per-protocol efficacy analyses. Excluded: upper urinary tract disease, prostatic urethral urothelial carcinoma, lymphovascular invasion, micropapillary disease, hydronephrosis.
- Design
- Phase 3, multicentre, open-label, single-arm, repeat-dose study at 33 US centres. A single intravesical 75 mL dose of nadofaragene firadenovec (3 x 10^11 viral particles per mL), repeated at months 3, 6 and 9 in the absence of high-grade recurrence. Primary endpoint: complete response at any time in patients with carcinoma in situ (with or without a high-grade Ta or T1 tumour); null hypothesis a complete response rate below 27%. Efficacy analysed in the per-protocol population. The FDA approval letter calls the study CS-003.
- Primary endpoint
- Complete response in carcinoma in situ
- Arms
- Nadofaragene firadenovec (experimental, n = 157): 75 mL intravesical dose (3 x 10^11 viral particles per mL), repeated at months 3, 6 and 9 if no high-grade recurrence
- People
- Boorjian SA
Show the numbers
| Endpoint | Analysis | Nadofaragene firadenovec | Control | Effect |
|---|---|---|---|---|
| Complete response in carcinoma in situPer-protocol efficacy population: 103 patients with carcinoma in situ (with or without a high-grade Ta or T1 tumour) strictly meeting the BCG-unresponsive definition; not described as intention-to-treatComplete response within 3 months of the first dose (the primary endpoint was complete response at any time) | primaryBoorjian 2021 | 53.4% | — | 55 of 103 patients; the abstract gives no confidence interval. |
| Complete response maintained at 12 months55 patients with a complete response | primaryBoorjian 2021 | 45.5% | — | 25 of 55 patients; the abstract gives no confidence interval. |
| Endpoint | Analysis | Nadofaragene firadenovec | Control | Effect |
|---|---|---|---|---|
| Complete response in carcinoma in situPer-protocol efficacy population: 103 patients with carcinoma in situ (with or without a high-grade Ta or T1 tumour) strictly meeting the BCG-unresponsive definition; not described as intention-to-treatComplete response within 3 months of the first dose (the primary endpoint was complete response at any time) | primaryBoorjian 2021 | 53.4% | — | 55 of 103 patients; the abstract gives no confidence interval. |
| Complete response maintained at 12 months55 patients with a complete response | primaryBoorjian 2021 | 45.5% | — | 25 of 55 patients; the abstract gives no confidence interval. |