An experimental lung cancer drug from Akeso and Summit Therapeutics improved survival in the Harmoni-6 Phase 3 trial conducted in China, according to results being presented at the American Society of Clinical Oncology annual meeting. Called ivonescimab, the bispecific antibody targets PD-1 — similar to Merck's best-selling drug Keytruda — and VEGF — similar to Roche's Avastin.