Trial of Preemptive Pharmacogenetics in Underserved Patients

After providing consent, subjects will be randomized to receive either the immediate pharmacogenetic testing arm or the delayed arm. Subjects in both groups will provide a DNA sample by saliva, buccal cell, or blood at study enrollment. Subjects assigned to the immediate pharmacogenetic genotyping group will be tested and will have their results entered into their electronic health record (EHR) and provided to them within 2-4 weeks. Subjects assigned to the delayed pharmacogenetic genotyping group will also be tested, but their results will not be released until after their participation in the study has ended. Subjects in each arm will complete surveys and questionnaires regarding their medication satisfaction, as well as their healthcare utilization use at baseline and then again at 6- and 12-months. Implementation-specific questions will also be asked to assess the feasibility and sustainability of the intervention as well as assessments of intervention fidelity and adaptations.