Hii!
Clinical research is a post graduate Level course and the eligibility criteria states that the candidate.mist have completed graduation with minimum 50% marks ( general category ) with a relevant Subject and a  recognised University. For reserved categories, the minimum marks required are 40% to 45%.
So, Yes. You can apply for the ourse. But your MSc degree will not be considered there.
The average salary after the course completion ranges from INR 3 lakhs to INR 25 lakhs per annum as per the experience and qualifications.
Hope this helps.
Good luck!