1. Placebos and blinding in randomized controlled cancer clinical trials for drug and biological products Publication: Silver Spring, MD : Center for Drug Evaluation and Research, August 2019 Subject(s): Double-Blind MethodNeoplasms -- drug therapyPlacebosRandomized Controlled Trials as Topic -- standardsSingle-Blind MethodAntineoplastic AgentsBiological ProductsRandomized Controlled Trials as Topic -- ethicsHumansUnited StatesUnited States. Department of Health and Human Services.United States. Food and Drug Administration.