The role of pharmacogenomic testing in optimizing depression treatment in medically underserved communities: Implications for nurse practitioner practice

Depression is a leading cause of disability worldwide, with treatment-resistant depression (TRD) affecting approximately 30% of patients who do not respond to standard antidepressants. In underserved and uninsured communities, where Nurse Practitioners (NPs) often provide essential mental health care, the challenges of managing TRD are compounded by limited access to specialized services. Pharmacogenomic testing offers a promising approach to overcoming these barriers by providing personalized medication recommendations based on a patient's genetic profile. This brief report examines the medical records of 46 patients from underserved communities who underwent genetic testing for TRD. Of the patients reviewed, 31 achieved remission within 2 months of receiving genetically guided treatment, resulting in a remission rate of 67.39%. Patients with specific genetic markers, such as poor metabolizers for CYP2D6 or CYP2C19 , experienced the most significant benefits. These findings suggest that pharmacogenomic testing can significantly improve treatment outcomes for TRD in underserved populations, enabling NPs to provide more personalized, effective care. Further research is necessary to explore the long-term benefits and cost-effectiveness of integrating pharmacogenomic testing into NP-led practices, particularly in resource-limited settings.