Brain cancer trial tests Chemo-First strategy to spare patients from radiation side effects

NCT ID NCT05331521

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This phase 3 trial tests a new chemotherapy combination (CETEG) for adults with a slow-growing brain tumor called oligodendroglioma. The goal is to see if starting with chemo alone can delay or avoid radiation therapy, which can cause long-term cognitive and quality-of-life problems. The study will compare this approach to the current standard of chemoradiation, measuring how long patients live without significant functional decline.

What this could mean

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

Active substance

CETEG (lomustine and temozolomide)

What this could lead to

If successful, this approach could delay the need for brain radiation, preserving cognitive function and quality of life for people with oligodendroglioma.

What could go wrong

This is an early-stage trial with 406 participants, and the new chemo combo may not be as effective as standard treatment. There is also a risk of side effects from the chemotherapy drugs.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

oligodendroglioma

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Charité, University Medicine Berlin, Neurosurgery

    RECRUITING

    Berlin, 10117, Germany

  • Chemnitz Hospital, Neurosurgery

    RECRUITING

    Chemnitz, 09116, Germany

  • Helios Hospital Schwerin, Neurosurgery

    RECRUITING

    Schwerin, 19049, Germany

  • Knappschaftskrankenhaus Bochum GmbH, Neurology Clinic

    RECRUITING

    Bochum, 44892, Germany

  • University Clinic Muehlenkreis, Minden

    RECRUITING

    Minden, 32429, Germany

  • University Hospital Bonn, Neurology Clinic

    RECRUITING

    Bonn, 53127, Germany

  • University Hospital Cologne, Neurosurgery

    RECRUITING

    Cologne, 50937, Germany

  • University Hospital Duesseldorf, Neurooncology

    RECRUITING

    Düsseldorf, 40225, Germany

  • University Hospital Frankfurt, Neurooncology

    RECRUITING

    Frankfurt, 60528, Germany

  • University Hospital Göttingen, Neurosurgery

    RECRUITING

    Göttingen, 37075, Germany

  • University Hospital Heidelberg, Department of Neurooncology

    RECRUITING

    Heidelberg, Baden-Wurttemberg, 69120, Germany

    Contact

  • University Hospital Leipzig, Radiation Therapy

    RECRUITING

    Leipzig, 04103, Germany

  • University Hospital Mannheim, Neurology Clinic

    RECRUITING

    Mannheim, 68167, Germany

  • University Hospital Regensburg, Neurology Clinic

    RECRUITING

    Regensburg, 93053, Germany

  • University Hospital Saarland, Neurosurgery

    RECRUITING

    Homburg, 66421, Germany

  • University Hospital Tuebingen, Neurooncology

    RECRUITING

    Tübingen, 72076, Germany

  • University Hospital Wuerzburg, Neurosurgery

    RECRUITING

    Würzburg, 97080, Germany

  • University Hospital of Jena, Neurosurgery

    RECRUITING

    Jena, 07747, Germany

  • University Hospital rechts der Isar, Radiation Oncology

    RECRUITING

    Munich, 81675, Germany