1. Erdafitinib in BCG-treated high-risk non-muscle-invasive bladder cancer.
- Author
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Catto, J.W.F., Tran, B., Rouprêt, M., Gschwend, J.E., Loriot, Y., Nishiyama, H., Redorta, J.P., Daneshmand, S., Hussain, S.A., Cutuli, H.J., Procopio, G., Guadalupi, V., Vasdev, N., Naini, V., Crow, L., Triantos, S., Baig, M., and Steinberg, G.
- Subjects
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NON-muscle invasive bladder cancer , *BCG vaccines , *BCG immunotherapy , *PROTEIN-tyrosine kinase inhibitors , *MITOMYCIN C , *DISEASE relapse - Abstract
Treatment options are limited for patients with high-risk non-muscle-invasive bladder cancer (NMIBC) with disease recurrence after bacillus Calmette–Guérin (BCG) treatment and who are ineligible for/refuse radical cystectomy. FGFR alterations are commonly detected in NMIBC. We evaluated the activity of oral erdafitinib, a selective pan-fibroblast growth factor receptor (FGFR) tyrosine kinase inhibitor, versus intravesical chemotherapy in patients with high-risk NMIBC and select FGFR3/2 alterations following recurrence after BCG treatment. Patients aged ≥18 years with recurrent, BCG-treated, papillary-only high-risk NMIBC (high-grade Ta/T1) and select FGFR alterations refusing or ineligible for radical cystectomy were randomized to 6 mg daily oral erdafitinib or investigator's choice of intravesical chemotherapy (mitomycin C or gemcitabine). The primary endpoint was recurrence-free survival (RFS). The key secondary endpoint was safety. Study enrollment was discontinued due to slow accrual. Seventy-three patients were randomized 2 : 1 to erdafitinib (n = 49) and chemotherapy (n = 24). Median follow-up for RFS was 13.4 months for both groups. Median RFS was not reached for erdafitinib [95% confidence interval (CI) 16.9 months-not estimable] and was 11.6 months (95% CI 6.4-20.1 months) for chemotherapy, with an estimated hazard ratio of 0.28 (95% CI 0.1-0.6; nominal P value = 0.0008). In this population, safety results were generally consistent with known profiles for erdafitinib and chemotherapy. Erdafitinib prolonged RFS compared with intravesical chemotherapy in patients with papillary-only, high-risk NMIBC harboring FGFR alterations who had disease recurrence after BCG therapy and refused or were ineligible for radical cystectomy. • Erdafitinib prolonged RFS versus intravesical chemotherapy in papillary-only FGFR -altered BCG-treated high-risk NMIBC. • At median follow-up of 13.4 months, median RFS was not reached for erdafitinib and was 11.6 months for chemotherapy. • The observed RFS benefit for erdafitinib was further reflected by the 6- and 12-month RFS rates and subgroups tested. • In this population, safety results were generally consistent with known profiles for erdafitinib and chemotherapy. • These trial results validate FGFR inhibition as a promising treatment approach for NMIBC. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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