Prof. Collen Masimirembwa leads the first multinational pharmacogenomics study in Africa, aiming to optimize treatments based on genetic makeup. The study involves 6,000 patients from Nigeria, Kenya, Zimbabwe, and South Africa, and is part of the Consortium for Genomics & Therapeutics in Africa (CGTA). Masimirembwa's work has pioneered pharmacogenomics in Africa, leading to the development of genetic tests like GenoPharm, which are being used to improve treatment outcomes.