I m sorry to say this. I dont think there is any gud scope for M.Sc clinical trial in India if you do not have a medical back ground like MBBS or MD degree. Pharma companies generally recruit doctors for clinical trials of their new chemicals if they have filed for IND and have cleared the pre-clinical phase. But in India, as far as I know no pharma major has/is involved in clinical trial. If this is the scenario in India forget abt opportunities abroad as u need a competent certificate/state license to practice in any medical profession.