Feasibility & Site Selection


CRO Services Europe

We deeply investigate sites ability to complete a project successfully, taking into account all technological, financial, legal and operational factors. We perform Investigator/Site level feasibility.

We identify clinical sites based on our previous experience and through new referrals. We recognize all possible challenges, so that we select the most suitable sites according to specific study requirements.

Selection Criteria


  • All clinical aspects
  • Sites interest and previous experience
  • Site demographics
  • Recruitment and retention capacity
  • Speed of enrollment
  • Referral networks and competing trials
  • Study team structure
  • Availability of qualified site personnel
  • Site infrastructure
  • Availability of equipment/facilities
  • Financial aspects
  • Quality of work

Our Clinical Sites Network


  • Cardiology > 50 clinical sites
  • Pulmonology > 45 clinical sites
  • Allergology > 28 clinical sites
  • Dermatology > 35 clinical sites
  • Oncology > 25 clinical sites
  • Rheumatology > 17 clinical sites
  • Endocrinology > 38 clinical sites
  • Ophthalmology > 21 clinical sites
  • Gastroenterology > 33 clinical sites
  • Neurology > 32 clinical sites
  • Pediatrics > 25 clinical sites
  • Psychiatry > 21 clinical sites

For more information about our site selection process and network of clinical sites, please contact us at: info@convex.bg