Merck KGaA’s ATR cancer drug cleared for further trials after phase 1 trial successMerck KGaA’s ATR inhibitor cancer drug has been cleared for further clinical trials after it showed encouraging activity in Share XMerck KGaA’s ATR cancer drug cleared for further trials after phase 1 trial successhttps://pharmaphorum.com/news/mercks-atr-cancer-drug-cleared-for-clinical-trials-after-phase-1-trial-success/