A new manuscript from the IGNITE Pragmatic Trials Network has been published in JAMA Network Open, describing results from the ADOPT PGx Depression trial. The randomized clinical trial evaluated whether genotype-guided prescribing of selective serotonin reuptake inhibitors (SSRIs) could improve outcomes for patients with depression.
The study enrolled 1,460 adults and children receiving care in primary care, psychiatry, and family medicine clinics across the United States. Researchers examined whether pharmacogenetic information related to CYP2D6 and CYP2C19 — genes that influence how individuals metabolize antidepressants — could help guide SSRI prescribing compared with usual care.
Among participants with actionable pharmacogenetic profiles, genotype-guided prescribing did not significantly improve depression symptom scores at 3 months, the study’s primary endpoint. However, patients in the genotype-guided group experienced higher rates of depression remission at 6 months than those receiving usual care, suggesting a potential longer-term benefit of pharmacogenetic-informed prescribing.
GenomeWeb coverage of the publication underscored the study’s broader relevance to the evolving role of pharmacogenetics in depression care, particularly as psychiatry guidelines continue to weigh the evidence for routine implementation. The ADOPT PGx findings contribute important new data to that discussion, highlighting both the promise of precision medicine approaches and the need for further research on long-term outcomes, clinical implementation, and access.
Together, these findings add meaningful evidence to ongoing efforts to understand how precision medicine strategies may support more individualized depression treatment and improve antidepressant response over time.
Read the publication here.

