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Can fish oil lift depression in obese adults?

NCT ID NCT07439744

Symptom relief Sponsor: National Science and Technology Council, Taiwan Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether taking omega-3 (EPA) supplements for 12 weeks can reduce depressive symptoms in overweight or obese adults who have depression and low omega-3 levels. Half of the 50 participants will receive EPA, and half will receive a placebo. Researchers will also look at how inflammation, diet, and gut bacteria relate to mood changes.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Eicosapentaenoic acid (EPA), an omega-3 fatty acid
What this could lead to
If it works, this could point toward a simple dietary supplement option for reducing depression in overweight people with low omega-3 levels.
What could go wrong
This is a small, early-stage trial with only 50 participants. The effect may be modest or no better than placebo, and results may not apply to everyone with depression.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 50 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2025

Expected to finish

Dec 2027

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 54 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Major depressive disorder. * Antidepressant drug-free. Exclusion Criteria: * Schizophrenia * Mania * Anxiety disorders (except for social phobia and generalized anxiety that are often comorbid with MDD) * Obsessive-compulsive disorder * Post-traumatic stress disorder * Alcohol or drug abuse/dependence (except for nicotine) * Active suicidal ideation * Serious medical/neurological conditions, especially requiring corticosteroid/non-steroidal anti-inflammatory or immunosuppressive therapies or chronic thyroid hormone replacement

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Conditions

The condition(s) this trial relates to.

endogenous depression major depressive disorder obesity disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

MDD Obese adults

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Mind Body Interface Research Center (MBI Lab & Care)

    RECRUITING

    Taichung, Taichung, 404, Taiwan

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