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Gut bug may reveal who responds to prostate cancer drug

NCT ID NCT06242509

Knowledge-focused Sponsor: Assistance Publique - Hôpitaux de Paris 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at whether a specific gut bacterium, Akkermansia muciniphila, can predict how well men with advanced prostate cancer respond to a common hormone therapy (abiraterone acetate). Researchers will collect stool and blood samples from 52 men over three months to track changes in the bacteria and compare them to treatment response. The goal is to find a simple, non-invasive way to identify who will benefit most from this therapy.

What this could mean

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

What this could lead to
If successful, this could lead to a simple stool test to predict which prostate cancer patients will benefit from certain hormone therapies.
What could go wrong
This is a small, early-stage observational study (52 participants) that only looks for a link, not a proven treatment. The findings may not apply to all patients or lead to a practical test.

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.

Participants

About 52 people

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

Started

Nov 2024

Expected to finish

Jan 2027

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.

Who is studied

Patients with metastatic CRPC receiving next generation hormonal therapy

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: * Be willing and not opposed to the study * Be ≥ 18 years of age at the time of inclusion. * Histologically or cytologically documented adenocarcinoma of the prostate. * Have metastatic castration-resistant prostate cancer with castrate-level testosterone (\<50 ng/dL) during the study * Initiation of abiraterone acetate therapy or any other next-generation hormonal therapies within 15 days after inclusion * Participants must be able and willing to comply with the study visit schedule and study procedures * Affiliated with French social security Exclusion Criteria: * CRPC patients who were previously treated with any next generation hormonal therapies in a metastatic CRPC setting * Person under legal protection * Inability to obtain the non-opposition

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Conditions

The condition(s) this trial relates to.

castration-resistant prostate carcinoma metastatic prostate carcinoma

As listed by the trial registrant

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

Metastatic castration resistant prostate cancer

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

  • Hôpital Saint Louis AP-HP

    RECRUITING

    Paris, France

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