Brain tumor patients may skip radiation to save thinking skills

NCT ID NCT02444000

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This phase 3 trial tested whether giving only PCV chemotherapy, instead of chemotherapy plus radiotherapy, could protect thinking abilities in people with a specific brain tumor (1p/19q codeleted anaplastic glioma). 280 newly diagnosed adults were randomly assigned to receive either PCV alone or radiotherapy followed by PCV. The main goal was to see if avoiding radiation helped preserve memory, language, and other cognitive functions without harming survival.

What this could mean

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

Active substance
PCV chemotherapy (CCNU, vincristine, procarbazine)
What this could lead to
If successful, this could show that skipping radiotherapy reduces cognitive decline without shortening survival for people with this brain tumor.
What could go wrong
This is a completed trial, so results are known. The main risk is that avoiding radiotherapy might lead to earlier tumor progression or lower overall survival.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • CH Louis Pasteur

    Colmar, 68000, France

  • CHU Bretonneau

    Tours, 37000, France

  • CHU D'Anger

    Angers, 49000, France

  • CHU Sud Réunion

    La Réunion, 97000, France

  • CHU annecy genevois

    Annecy, 74000, France

  • CHU d'Amiens- CHU nord

    Amiens, 80000, France

  • CHU de Bordaux

    Bordeaux, 33000, France

  • CHU de Caen

    Caen, 30000, France

  • CHU de Poitiers

    Poitiers, 86000, France

  • CHU de Rouen

    Rouen, 76000, France

  • CHU la Timone

    Marseille, 13000, France

  • CLCC Eugène Marquis

    Rennes, 44000, France

  • CLCC Institut Gustave Roussy

    Villejuif, 94800, France

  • Centre Hospitalier Perpignan

    Perpignan, 49000, France

  • Centre Hospitalier de Bretagne Sud - Hôpital du Scorff

    Lorient, 56000, France

  • Chu Dupuytren

    Limoges, 87000, France

  • GH Est-Institut d'hématologie et d'oncologie pédiatrique IHOP

    Lyon, 69000, France

  • Groupe Hospitalier Pitié Salpetriere

    Paris, 75013, France

  • HIA du Val de Grâce

    Paris, 75005, France

  • Hopital CLAIRVAL

    Marseille, 13000, France

  • Hopital François Mitterand

    Dijon, 21000, France

  • Hopital Gabriel Montpied

    Clermont-Ferrand, 63000, France

  • Hopital PASTEUR

    Nice, 06000, France

  • Hopital Roger Salengro

    Lille, 59000, France

  • Hopital Saint Louis

    Paris, 75010, France

  • Hopital de la Cavale Blanche

    Brest, 29000, France

  • Hôpital Foch

    Suresnes, 92000, France

  • Hôpital Nord, CHU de Saint-Etienne

    Saint-Etienne, 42000, France

  • Hôpital Pierre Wertheimer

    Lyon, 69000, France

  • ICM, Institut régional du Cancer de Montpellier

    Montpellier, 34000, France

  • IUCT Oncopole - CLCC Institut Claudius Regaud

    Toulouse, 31000, France

  • Institut Pul STRAUSS

    Strasbourg, 67000, France

  • Institut de Cancérologie de l'Ouest (ICO) - site CLCC René Gauducheau

    Nantes, 44000, France