The BioWorld Cancer Index ended the first quarter (Q1) of 2025 down 4.74%, retreating after a promising start that saw the index rise 5.78% by the end of January. In the first quarter, 20 stocks declined in value while just nine posted gains.

Losing nearly 60% of its value, Mural Oncology plc backed away from its lead interleukin-2 (IL-2) drug, nemvaleukin alfa, in platinum-resistant ovarian cancer based on interim results showing it failed to reach significance in the overall survival primary endpoint.

A year after Alkermes plc announced it would divide its oncology and neuroscience efforts into two separate businesses, the Dublin-based company spun out Mural Oncology plc with $275 million in funding and the lead solid tumor candidate nemvaleukin alfa. Shares of Mural (NASDAQ:MURA) will begin trading Nov. 16. “We’re very excited,” Mural’s CEO Caroline Loew told BioWorld. “We’ve got two major clinical datapoints in the next 18 months.”