1. Primary results of STRONG: An open-label, multicenter, phase 3b study of fixed-dose durvalumab monotherapy in previously treated patients with urinary tract carcinoma.
- Author
-
Sonpavde, Guru P., Sternberg, Cora N., Loriot, Yohann, Marabelle, Aurelien, Lee, Jae Lyun, Fléchon, Aude, Roubaud, Guilhem, Pouessel, Damien, Zagonel, Vittorina, Calabro, Fabio, Banna, Giuseppe L., Shin, Sang Joon, Vera-Badillo, Francisco E., Powles, Thomas, Hellmis, Eva, Miranda, Paulo A.P., Lima, Ana Rita, Emeribe, Ugochi, Oh, Sun Min, and Hotte, Sebastien J.
- Subjects
- *
URINARY tract infections - Abstract
Prior durvalumab (anti-PD-L1 agent) studies in platinum-refractory metastatic urothelial carcinoma evaluated a dose of 10 mg/kg administered every two weeks. The nonrandomised phase 3b STRONG study (NCT03084471) evaluated the safety and efficacy of fixed-dose durvalumab at a more convenient dosing schedule in a previously treated patient population, more similar to a real-world clinical setting. 867 patients with urothelial or nonurothelial urinary tract carcinoma (UTC) who progressed on or after platinum or nonplatinum chemotherapy were treated with durvalumab 1500 mg every four weeks; 87% had an Eastern Cooperative Oncology Group performance status (ECOG PS) of 0–1, and 13% had an ECOG PS of 2. The primary end-point was the incidence of adverse events of special interest (AESIs), including immune-mediated AEs (imAEs). Secondary and exploratory end-points included overall survival (OS), objective response rate (ORR) and disease control rate (at six and 12 months) (DCR). AESIs of any grade were reported in 51% of patients (8% grade ≥ 3). The incidence of imAEs was 11% (2% grade ≥ 3). The median OS was 7.0 months (95% confidence interval [CI]: 6.4–8.2) and ORR was 18% (95% CI: 14.8–20.6), with complete responses in 5% of patients and a DCR at six months of 19% (95% CI: 16.1–22.1). Fixed-dose durvalumab monotherapy every four weeks has an acceptable safety profile and yields durable clinical activity in previously chemotherapy-treated patients with UTC. Safety and efficacy are consistent with previous durvalumab studies and other anti-PD-1/PD-L1 agents in this setting. NCT03084471 https://clinicaltrials.gov/ct2/show/NCT03084471. [Display omitted] • STRONG, a phase 3b study, had a large population similar to a real-world setting. • Patients had previously treated metastatic urothelial or nonurothelial carcinoma. • Patients received a fixed dose of durvalumab 1500 mg intravenously every four weeks. • The primary end-point was adverse events of special interest. • Durvalumab had an acceptable safety profile and durable clinical activity. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF