Zai Lab (HKG:9688) said bemarituzumab was found to be lacking in yet another clinical trial, according to a Hong Kong bourse filing Wednesday.
Shares of the biopharmaceutical company, which acquired the commercialization rights for bemarituzumab for mainland China, Hong Kong, Macau, and Taiwan from US-listed Amgen, fell over 3% in pre-market trade.
Zai Lab said the Fortitude-102 study evaluating bemarituzumab in combination with nivolumab and chemotherapy in treating gastric cancer was stopped for inadequate efficacy.
The drug was previously found to be lacking in the Fortitude-101 study, and the company had been awaiting results from Fortitude-102 for further clues of its usefulness in treating the patient population.