Omega-3 for inflammation and the gut microbiome in young people with depression

Omega-3 Fatty Acids, Inflammation, Gut Microbiota in Youth With Depression (OMIMYDep)- A Double-blind Randomized Controlled Trial

Not applicable Interventional China Medical University Hospital · NCT07363551

This 12-week double-blind randomized test will see if omega-3 supplements help symptoms, reduce inflammation, and change gut bacteria in young people with major depression.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment60 (estimated)
Ages13 Years to 18 Years
SexAll
SponsorChina Medical University Hospital Academic / other
Locations1 site (Taichung, Taichung)
Trial IDNCT07363551 on ClinicalTrials.gov

What this trial studies

This 12-week double-blind randomized controlled trial compares omega-3 fatty acid supplements with placebo in youths diagnosed with a DSM-5 major depressive episode. Participants will be randomized and followed with clinical symptom ratings, blood tests for inflammatory biomarkers, and stool sampling for gut microbiota profiling. The protocol excludes those with a recent change in antidepressant medication or psychotherapy within four weeks and anyone allergic to omega-3. The single-center trial is conducted at China Medical University Hospital in Taichung, Taiwan.

Who should consider this trial

Good fit: Young people with a DSM-5 diagnosis of a current major depressive episode who have had no change in antidepressant medication or psychotherapy in the prior four weeks and are not allergic to omega-3 are ideal candidates.

Not a fit: Patients who recently changed antidepressant or psychotherapy treatment, are allergic to omega-3, or whose primary diagnosis is not a major depressive episode are unlikely to receive benefit from this protocol.

Why it matters

Potential benefit: If successful, omega-3 supplementation could reduce depressive symptoms and lower inflammation while favorably shifting gut microbiota in young people.

How similar studies have performed: Prior trials and meta-analyses have reported modest antidepressant benefits for omega-3 (especially EPA-rich formulations), while effects on inflammatory markers and gut microbiota remain less consistently demonstrated.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Youth with a DSM-5 diagnosis of MDE

Exclusion Criteria:

* Has a recent change in antidepressants or psychotherapy treatment within 4 weeks.
* Allergic to omega-3 fatty acids

Where this trial is running

Taichung, Taichung

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions ADHDomega-3, ADHD
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.