New combo radiation therapy aims to spare elderly rectal cancer patients from surgery

NCT ID NCT06729645

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

Summary

This study tests a combination of two types of radiation therapy for elderly or frail patients with rectal cancer who cannot or will not have surgery. The goal is to shrink or control the tumor while maintaining quality of life. Researchers will follow 80 participants for up to two years to see how well the treatment works and how it affects daily living.

What this could mean

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

Active substance
radiation therapy (external beam radiotherapy and endorectal high-dose-rate brachytherapy)
What this could lead to
If successful, this approach could offer a non-surgical treatment option that controls rectal cancer and preserves quality of life for elderly or frail patients.
What could go wrong
This is an early-phase trial with only 80 participants, so results may not apply to all patients. The treatment may not achieve lasting tumor control, and side effects from radiation are possible.

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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

  • Frankfurt Universitätsklinikum

    Frankfurt am Main, Hesse, 60590, Germany

  • Klinik für Strahlentherapie, Cyberknife und Radioonkologie Universität zu Köln

    Cologne, North Rhine-Westphalia, 50937, Germany

  • Klinikverbund Allgäu

    Kempten, BaBaden-Württembergs, 87439, Germany

  • Leipzig, Universitätsklinikum

    Leipzig, Saxony, 04103, Germany

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