Study of HLX22 in Combanition With Trastuzumab and Chemotherapy Versus Placebo in Combination With Trastuzumab and Chemotherapy for Treatment of Locally Advanced or Metastatic Gastric Cancer

Summary

The purpose of this study is to evaluate the clinical efficacy and safety of HLX22 in the HER2+ Locally Adanved or Metastatic Gastric Cancer as the first-line therapy.This study consists of three periods, screening period (28 days), treatment period and follow-up period (including safety follow-up, survival follow-up).Subjects can be enrolled into this study only if they meet inclusion criteria and do not meet exclusion criteria. The enrolled subjects will receive an intravenous infusion of HLX22/placebo and SOC(standard of care: Trastuzumab + XELOX) once every 3 weeks until the loss of clinical benefit, death, intolerable toxicity, withdrawal of informed consent or other reasons as specified in the protocol(whichever occurs earlier).

Timeline

Start

2021-09-29

Primary completion

2024-12

Completion

2025-12

Publications

• Li N, Qiu M, Zhang Y, Yang M, Lu L, Li W, Ma Y, Hou X, Sun G, Cai M, Wang J, Lu J, Zhong D, Huo Z, Zhang J, Yin X, Deng J, Liu Z, Pan H, Chen Y, Yang F, Yu H, Li J, Wang Q, Zhu J, Li J. A randomized phase 2 study of HLX22 plus trastuzumab biosimilar HLX02 and XELOX as first-line therapy for HER2-positive advanced gastric cancer. Med. 2024 Oct 11;5(10):1255-1265.e2. doi: 10.1016/j.medj.2024.06.004. Epub 2024 Jul 9.

Drugs

Indications