Dear Colleagues
Yes, co-enrolment is something prevalent especially when different sites are closer to each other or where its easy for participants to commute between sites. In order to counter this we used a biometric system to curb such practises. over and above the system during information session we emphasised importance of not enrolment to more one study for firstly for health reason so most participants understood. mostly co-enrolment happens where participants have control over usage of study product than when is given to them at site.
by the way we deal with people and people will anything to have little bit cash or any other material gain so need to constantly around curbing bad practises
Thanks
Lucky
