Many trials have been conducted by Optimum CRO in the following therapeutic areas:
| Our Projects | |
| International | 218 |
| Local | 182 |
| TOTAL | 400 |
| Phase III | 150 |
| PMSS | 126 |
| Phase IV | 31 |
| Phase II | 30 |
| SMO | 20 |
| İcompassionate Use Programme | 9 |
| Phase I | 3 |
| Patient Support Programme | 2 |
| Pharmacovigillance | 2 |
| Questionnaire Studies | 3 |
| Patient Follow Up and Sales Management | 5 |
| Feasibility | 2 |
| Animal Studies | 1 |
| Legal Representativeness | 1 |
| Start up activities | 4 |
| Non-Drug Studies | 5 |
| Tissue Studies (ATMP) | 1 |
| Medical Device | 5 |
| TOTAL | 400 |
| Oncology | 67 |
| Cardiology | 56 |
| Pulmonary Diseases | 38 |
| Endocrinology | 33 |
| Infectious Diseases | 24 |
| Hematology | 24 |
| PMNR | 22 |
| Neurology | 23 |
| Nephrology | 20 |
| Urology | 15 |
| Psychiatry | 10 |
| Gastroenterology | 12 |
| Dermatology | 9 |
| Ophtalmology | 12 |
| Pediatry | 6 |
| Gynecology and Obsterics | 5 |
| Orthopedy | 4 |
| NA | 5 |
| Radiation Oncology | 3 |
| Ggeneral Surgery | 3 |
| Metabolism | 2 |
| ENT | 2 |
| Brain Surgery | 1 |
| Orthodonty | 3 |
| Cardiovascular Surgery | 1 |
| TOTAL | 400 |