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The Clinical Trials Registry of India (CTRI) that initially permitted retrospective registration moved to mandatory prospective registration of studies with effect from April 1, 2018. The present study was an audit that compared registration 1 year post the rule versus a year prior to it.

perspectives in clinical research

Has mandatory prospective registration of all studies brought about a change? A 1-year audit of studies registered in the Clinical Trials Registry of India [CTRI] before and after April 1, 2018