Zapping cancer spots could delay stronger drugs

NCT ID NCT04299646

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

Summary

This study tests whether high-dose, precise radiation (stereotactic radiotherapy) can control a few growing kidney cancer spots while the rest of the disease is stable on current medication. About 77 people with metastatic kidney cancer whose tumors are progressing in only a few places will receive radiation to those spots. The goal is to see if this can delay the need to switch to a new, often stronger, systemic therapy.

What this could mean

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

Active substance

stereotactic radiotherapy

What this could lead to

If it works, this approach could help people with kidney cancer stay on their current treatment longer and delay switching to harsher drugs.

What could go wrong

This is a small, early-phase study with only 77 participants. It may not prove effective, and radiation can cause side effects like fatigue or local tissue damage.

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.

renal cell carcinoma

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

  • CHD Vendée

    NOT_YET_RECRUITING

    La Roche-sur-Yon, France

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

    Contact

  • CHR

    NOT_YET_RECRUITING

    Metz, France

    Contact

    Contact

  • CHU Henri Mondor

    NOT_YET_RECRUITING

    Créteil, France

    Contact

    Contact

  • CHU La Timone

    NOT_YET_RECRUITING

    Marseille, France

    Contact

    Contact

  • Centre Antoine Lacassagne

    NOT_YET_RECRUITING

    Nice, France

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

    Contact

  • Centre François Baclesse

    RECRUITING

    Caen, 14076, France

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

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

    Contact

  • Centre Georges François LECLERC

    NOT_YET_RECRUITING

    Dijon, France

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

    Contact

  • Centre Haute Energie

    NOT_YET_RECRUITING

    Nice, France

    Contact Email: •••••@•••••

    Contact

  • Centre Henri Becquerel

    NOT_YET_RECRUITING

    Rouen, France

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

    Contact

  • Centre Hospitalier Annecy Genevois

    NOT_YET_RECRUITING

    Pringy, France

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

    Contact

  • Centre Jean Perrin

    NOT_YET_RECRUITING

    Clermont-Ferrand, France

    Contact

    Contact

  • Centre Léon Bérard

    NOT_YET_RECRUITING

    Lyon, France

    Contact

    Contact

  • Centre Oscar Lambret

    RECRUITING

    Lille, France

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

    Contact

  • Centre de radiothérapie Guillaume le Conquérant

    NOT_YET_RECRUITING

    Le Havre, France

    Contact

    Contact

  • Centre marie Curie

    RECRUITING

    Valence, France

    Contact

    Contact

  • Clinique Claude Bernard

    NOT_YET_RECRUITING

    Albi, France

    Contact

    Contact

  • Groupement de radiothérapie Oncologie des Pyrénées

    NOT_YET_RECRUITING

    Pau, France

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

    Contact

  • ICM

    NOT_YET_RECRUITING

    Montpellier, France

    Contact

    Contact

  • IUCT

    NOT_YET_RECRUITING

    Toulouse, France

    Contact

    Contact

  • Institut Bergonié

    NOT_YET_RECRUITING

    Bordeaux, France

    Contact

    Contact

  • Institut Curie

    NOT_YET_RECRUITING

    Paris, France

    Contact

    Contact

  • Institut Gustave Roussy

    RECRUITING

    Villejuif, France

    Contact

    Contact

  • Institut Paoli Calmette

    NOT_YET_RECRUITING

    Marseille, France

    Contact

    Contact

  • Institut de Cancérologie de Lorraine

    NOT_YET_RECRUITING

    Nancy, France

    Contact

    Contact

  • Institut de Cancérologie de l'Ouest

    RECRUITING

    Angers, France

    Contact

    Contact

  • Institut de Cancérologie de l'Ouest

    RECRUITING

    Nantes, France

    Contact

    Contact

  • Institut de Cancérologie de la Loire Lucien Neuwirth

    NOT_YET_RECRUITING

    Saint-Etienne, France

    Contact

    Contact

  • Institut de cancérologie de Bourgogne (Dijon, Auxerre, Chalon sur Saône)

    RECRUITING

    Dijon, France

    Contact

    Contact

  • Polyclinique de l'Ormeau

    RECRUITING

    Tarbes, France

    Contact Email: •••••@•••••

    Contact

  • Radiothérapie Bordeaux Nord Aquitaine

    NOT_YET_RECRUITING

    Bordeaux, France

    Contact

    Contact