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New combo tackles recurrent brain tumor: immunotherapy plus radiation before surgery

NCT ID NCT04977375

Disease control Sponsor: Chirag G. Patil 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This early-phase trial is testing whether combining an immunotherapy drug (pembrolizumab) with targeted radiation before surgery is safe and feasible for people with recurrent glioblastoma, an aggressive brain cancer. Ten participants will receive the drug and radiation, then undergo standard surgery to remove the tumor. Researchers will monitor side effects and overall survival to see if this approach warrants further study.

What this could mean

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

Active substance
Pembrolizumab (an immunotherapy drug that helps the immune system fight cancer)
What this could lead to
If this approach is safe and shows promise, it could point toward a new treatment option for recurrent glioblastoma, a brain cancer with few effective therapies.
What could go wrong
This is a very early, small trial (only 10 participants) focused on safety, not effectiveness. The combination may cause serious side effects or fail to improve survival. Results may not apply to all patients.

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 1/2

Runs two stages together: safety and dose first, then whether the treatment works.

Participants

About 10 people

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

Started

Dec 2021

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 years and older

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: * Age 18 years or older * Confirmed histologic diagnosis of WHO Grade IV, Glioblastoma Multiforme * GBM recurrence or progression with planned standard of care surgical resection and repeat radiation * Tumor size less than 6 cm * ECOG performance status of 0-1 * Adequate laboratory values Exclusion Criteria: * Contraindication to additional radiation * Prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor * Immunodeficiency diagnosis or receiving chronic systemic steroid therapy (exceeding 10 mg daily of prednisone) or any other form of immunosuppressive therapy * Severe hypersensitivity to pembrolizumab Complete inclusion/exclusion criteria are detailed in the protocol.

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Conditions

The condition(s) this trial relates to.

brain cancer central nervous system cancer glioblastoma glioma glioma susceptibility 1 spinal cord neoplasm

As listed by the trial registrant

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

Glioblastoma multiforme

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

  • Cedars-Sinai Medical Center

    RECRUITING

    Los Angeles, California, 90048, United States

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