Competitive And Market PressureAnalyst points out strong early results from a competitor's prostate cancer T-cell engager and a dramatic share price decline after the interim update, increasing commercial and investor-confidence pressure on the company's programs.
Data Robustness And Dosing UncertaintyAnalyst notes that small patient cohorts, declines in RECIST response rates, and lack of confirmed response disclosure create uncertainty about durability of benefit and complicate selection of a definitive dose and schedule for pivotal trials.
Safety ConcernsAnalyst warns that a fatal cardiotoxicity event tied to the program raises material safety concerns that will prompt heightened monitoring and could constrain regulatory and commercial prospects.