Summit Therapeutics Stock Skyrockets After Cancer Drug Outperforms Keytruda

Summit Therapeutics Inc. shares soared 272% after a late-stage trial showed their cancer drug ivonescimab significantly outperformed Merck's Keytruda in treating non-small cell lung cancer, leading to a decline in Merck's shares. The trial, conducted in China, demonstrated a meaningful improvement in progression-free survival, with analysts optimistic about the drug's potential in other populations and across multiple solid tumors.