A New Era of Precision Depression Treatment

“Our findings suggest we may be able to move psychiatry closer to precision medicine, where objective biological and behavioral data help guide treatment decisions from the outset,” says Diego A. Pizzagalli, founding director of the Noel Drury, M.D. Institute for Translational Depression Discoveries at UC Irvine. Steve Zylius / UC Irvine

For millions of people living with depression, finding an effective treatment can feel like a long and uncertain journey. Patients often spend months trying different medications, enduring side effects and persistent symptoms while waiting to discover whether a prescription will help.

A new study led by researchers at the University of California, Irvine and Mass General Brigham-affiliated McLean Hospital suggests there may be a better way.

Published in Nature Mental Health, the research found that using biological and behavioral markers to help guide antidepressant treatment selection increased response rates by nearly 67% compared with patients who lacked favorable biomarker profiles. The findings represent one of the first efforts to use biomarkers to inform antidepressant prescribing decisions for people with major depressive disorder.

The study was led by Diego A. Pizzagalli, PhD, founding director of UC Irvine’s Noel Drury, M.D. Institute for Translational Depression Discoveries and Distinguished Professor of psychiatry and human behavior, neurobiology and behavior, and biomedical engineering.

“Depression treatment still relies far too heavily on trial and error,” Pizzagalli says. “Patients often spend months cycling through medications before finding one that works, while symptoms worsen and suicide risk can increase. Our findings suggest we may be able to move psychiatry closer to precision medicine, where objective biological and behavioral data help guide treatment decisions from the outset.”

Read more about why depression remains difficult, building a personalized treatment model, how biomarkers reveal stronger treatment responses, and looking beyond medication. Find the full feature article in UC Irvine News.