Please refer this link

http://www.catalystclinicalservices.com/professional-diploma-in-clinical-research.html

http://www.catalystclinicalservices.com/professional-certificate-in-pharmacovigilance.html

the eDX courses at www.edx.org on clinical research is quite good

Please refer to this link,http://www.jli.edu.in/ this is not free rather quite reasonable fees as compared to other clinical research online classes

University of london international programs- dip in clinical trials

Also you can try www.coursera.org, though to earn the certificate you must pay a fee.

Thank you sir for your information

I followed the courses `Introduction to Stat2.1x Statistics: Descriptive Statistics´ of Berkeley and `PH207x. Quantitative Methods in Clinical & Public Health Research of Harvard University´. Both courses seemed to be very useful and valuable.

See also the information of Harvard Medical School. I think that for a more basic Course there are no problem, but for the more developed there is a previous selection.