He also works in various clinical trials of psychiatry including trials of repurposed drugs and service trials. He also gives courses on GCP and GCLP in collaboration with the Armauer Hansen Institute (AHRI), Ethiopia. Dr Dawit has experience working on clinical research/ clinical trials for the last 14 years in the areas of tuberculosis, HIV, malaria and psychiatry studies. During these years he has developed expertise through hands on experience and training in the areas of project management, clinical trial management, monitoring, quality assurance and data management. Dr Ejigu is also a reader in biostatistics.