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Fish oil may delay hormone therapy in prostate cancer patients

NCT ID NCT03753334

Disease control Sponsor: CHU de Quebec-Universite Laval Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a daily high-dose omega-3 supplement (fish oil) can slow the rise of PSA levels in men whose prostate cancer has returned after initial treatment. About 40 men with a rising PSA but no spread will take either the supplement or a placebo for one year. The goal is to see if omega-3s can delay the need for hormone therapy, which often has harsh side effects.

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

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

39 people

The number who actually took part.

Started

Jul 2017

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

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

Ages

18 to 100 years

Sex

Male participants only

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: * Patients must have a histologically or cytologically confirmed history of adenocarcinoma of the prostate. * Patients must have a PSA failure defined as PSA of \>= 0.5 ng/ml that has increased above nadir following radical prostatectomy (RP); or a PSA increase of 2.0 above post-therapy nadir after radiotherapy (RT); or a PSA increase between 0.05-0.49 ng/ml that has increased above nadir following RP. The maximal PSA value at enrolment must be \<5.0 ng/mL after RP and \<6 ng/mL after RT. * PSA value must be increasing based on three consecutive measurements each separated by at least 4 weeks prior to enrolment to this study. * Patients may have received any number of local therapies (RP, external beam RT or brachytherapy). * Provide written informed consent. Exclusion Criteria: * Patients with evidence of metastatic disease. * Patients who have received prior cytotoxic chemotherapy for recurrent disease. * Patients currently receiving biological response modifiers, or corticosteroids. * Uncontrolled intercurrent illness including, but not limited to, ongoing active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness or social situations that would limit compliance with study requirements. * Use of omega-3 or any other dietary supplements for the previous 3 months and during study is not allowed. * Known allergy to fish or shellfish or sunflower.

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Conditions

The condition(s) this trial relates to.

prostate cancer

As listed by the trial registrant

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

Prostate cancer

Contacts and locations

Locations

  • Centre de Recherche Clinique et Évaluative en Oncologie - Hôtel-Dieu de Québec

    Québec, Quebec, G1R 3S1, Canada

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