Bemarituzumab or Placebo Plus Chemotherapy in Gastric Cancers With Fibroblast Growth Factor Receptor 2b (FGFR2b) Overexpression
Summary
The main objective of this study is to compare efficacy of bemarituzumab combined with oxaliplatin, leucovorin, and 5-fluorouracil (5-FU) (mFOLFOX6) to placebo plus mFOLFOX6 as assessed by overall survival (OS) in participants with FGFR2b ≥10% 2+/3+ tumor cell staining (FGFR2b ≥10% 2+/3+TC)
Timeline
- Start
- 2022-03-07
- Primary completion
- 2025-06-20
- Completion
- 2026-04-26
Outcome
Met primary endpoint
release “today announced the Phase 3 FORTITUDE-101 clinical trial evaluating first-line bemarituzumab plus chemotherapy (mFOLFOX6) met its primary endpoint of overall survival (OS)” zailaboratory.com ↗
release “the Phase 3 FORTITUDE-101 clinical trial evaluating first-line bemarituzumab plus chemotherapy (mFOLFOX6) met its primary endpoint of overall survival (OS) at a pre-specified interim analysis” zailaboratory.com ↗
Publications
- Background Rha SY, Zhang Y, Elme A, Pazo Cid R, Alacacioglu A, Ziogas DC, Shitara K, Ranceva A, Nemecek R, Santoro A, Calderon CA, Korphaisarn K, Davis T, Zahlten-Kuemeli A, Conn C, Tan M, Honeycutt H, Wainberg ZA. Prevalence of FGFR2b Protein Overexpression in Advanced Gastric Cancers During Prescreening for the Phase III FORTITUDE-101 Trial. JCO Precis Oncol. 2025 Jan;9:e2400710. doi: 10.1200/PO-24-00710. Epub 2025 Jan 24.
- Background Farooq AV, Kaur S, Hundal P, Burke M, Sulaiman R, Zahlten-Kumeli A, Raoof S, Li Z, Murias Dos Santos T, Huang XJ, Colby K. Advancing Ocular Safety Profile Assessment: A Novel Grading Scale for Ocular Adverse Reactions Associated with Bemarituzumab. Ophthalmol Ther. 2025 Jul;14(7):1349-1356. doi: 10.1007/s40123-025-01139-6. Epub 2025 May 12.
- Yu J, Mehta R. Biomarker-Driven Approach to the Treatment of Metastatic Gastric or Gastroesophageal Adenocarcinoma. J Natl Compr Canc Netw. 2025 May;23(5):e257036. doi: 10.6004/jnccn.2025.7036.
- Wainberg ZA, Kang YK, Lee KW, Qin S, Yamaguchi K, Kim IH, Saeed A, Oh SC, Li J, Turk HM, Teixeira A, Hitre E, Udrea AA, Cardellino GG, Sanchez RG, Zahlten-Kumeli A, Taylor K, Enzinger PC. Bemarituzumab as first-line treatment for locally advanced or metastatic gastric/gastroesophageal junction adenocarcinoma: final analysis of the randomized phase 2 FIGHT trial. Gastric Cancer. 2024 May;27(3):558-570. doi: 10.1007/s10120-024-01466-w. Epub 2024 Feb 3.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Bemarituzumab | Monoclonal antibody | — | Intravenous |
| Background | Leucovorin | Small molecule | — | Intravenous |
| Background | Oxaliplatin | Small molecule | — | Intravenous |
| Background | fluorouracil | Small molecule | — | Intravenous |