New Treatments & Clinical Trials for Depression

Depression is one of the most common mental health conditions, affecting roughly one in six adults at some point in life. First-line treatments include antidepressants like SSRIs and SNRIs, talk therapy, or both. Many people respond to these approaches, but roughly a third don't improve enough even after trying multiple medications.

What's actually going on in research

Trials are testing fast-acting drugs like esketamine nasal spray and psychedelics, new pills that work differently than SSRIs, brain stimulation methods that don't require surgery, and digital tools that predict which treatment might work best for each person. Researchers are also studying inflammation's role in depression and testing anti-inflammatory approaches.

What to know before you search

Eligibility typically depends on depression severity, number of prior treatments tried, and whether symptoms meet specific criteria for major depressive disorder.

What types of trials are currently open

• Medication trials — Testing new antidepressants or new uses of existing drugs, often comparing them to placebo or standard SSRIs.
• Treatment-resistant trials — For people who haven't improved after trying two or more antidepressants. May test add-on drugs, brain stimulation, or novel mechanisms.
• Psychedelic trials — Testing psilocybin, MDMA, or related compounds, usually with therapy sessions before and after dosing.
• Brain stimulation trials — Testing methods like transcranial magnetic stimulation or newer non-invasive approaches that target specific brain circuits.
• Digital health trials — Testing apps, online therapy programs, or tools that use data to predict treatment response.