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Scientists probe why glioblastoma strikes men harder

NCT ID NCT07472387

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 trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at how male hormones (androgens) influence the immune cells around glioblastoma tumors, the most common and aggressive brain cancer in adults. Researchers will collect blood, saliva, and stool samples from 40 newly diagnosed patients before and after standard chemoradiotherapy. The goal is to understand why men are more likely to get this cancer and have worse outcomes.

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 research could reveal why glioblastoma is more common and aggressive in men, potentially pointing toward sex-specific treatment approaches.
What could go wrong
This is an observational study with no treatment being tested, so it will not directly benefit participants. The findings may not lead to new therapies.

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 40 people

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

Expected to start

Apr 2026

An estimate. Start dates often move.

Expected to finish

Apr 2030

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 55 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: * Patients aged ≥18 and ≤55 * Newly diagnosed GBM * Surgery with complete or incomplete resection * Eligible for chemoradiotherapy * No active immune disorders * Supratentorial location on MRI and no signs of meningeal dissemination * Tumor sample (taken as part of treatment) available for study (fresh frozen tissue) * Patient informed and consented to participate in the study * Affiliation with a social security system or beneficiary Exclusion Criteria: * Active infection at the time of sampling or within the previous 14 days * Active immune disorders * Known patients with low-grade glioma that has undergone anaplastic transformation * Patients treated with corticosteroids * Patients participating in interventional research * Patients under legal protection, guardianship, or conservatorship. * Pregnant or breastfeeding women * Individuals under AME

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Conditions

The condition(s) this trial relates to.

glioblastoma

As listed by the trial registrant

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

Glioblastoma (GBM)

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

  • Neuro-oncology department, Pitié Salpêtrière hospital

    Paris, 75013, France

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