Can spacing out radioactive drug doses reduce side effects in neuroendocrine tumors?

NCT ID NCT06878664

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study compares two schedules of the radioactive drug Lu177-Dotatate in 166 people with slow-growing midgut neuroendocrine tumors. One group gets the drug every 8 weeks (standard), the other every 16 weeks. The goal is to see if the less frequent schedule causes fewer blood-related side effects while still controlling the tumor. Participants must have tumors that express somatostatin receptors and have shown slow progression.

What this could mean

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

Active substance
Lu177-Dotatate (a radioactive drug that targets tumor cells)
What this could lead to
If successful, this could show that a less frequent dosing schedule of Lu177-Dotatate is safer and just as effective for controlling slow-growing midgut neuroendocrine tumors.
What could go wrong
This is a Phase 2/3 trial with 166 patients, so results are not yet proven. The less frequent schedule might be less effective at controlling the tumor, and side effects like blood toxicity or secondary cancers remain 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

Study contacts

  • Contact

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Locations

  • Centre Eugène MARQUIS

    NOT_YET_RECRUITING

    Rennes, Rennes, 35000, France

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  • Centre François BACLESSE

    NOT_YET_RECRUITING

    Caen, Caen, 14000, France

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  • Chu Dijon

    NOT_YET_RECRUITING

    Dijon, Dijon, 21000, France

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  • Complexo Hospitalario Universitario de Santiago

    NOT_YET_RECRUITING

    Santiago de Compostela, La Coruña, 15706, Spain

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

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  • Hopital BEAUJON

    NOT_YET_RECRUITING

    Clichy, Paris, 92110, France

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

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  • Hopital COCHIN

    NOT_YET_RECRUITING

    Paris, Paris, 75014, France

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  • Hospices civiles de Lyon

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    Lyon, Lyon, 69002, France

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  • Hospital 12 de Octubre

    RECRUITING

    Madrid, Madrid, 28041, Spain

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  • Hospital Center University De Lille

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    Lille, Lille, 59000, France

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  • Hospital Clínico de Valencia

    RECRUITING

    Valencia, Valencia, 46010, Spain

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  • Hospital General Universitario Gregorio Marañón

    NOT_YET_RECRUITING

    Madrid, Madrid, 28007, Spain

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  • Hospital Universitari Vall d'Hebrón

    RECRUITING

    Barcelona, Barcelona, 08035, Spain

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  • Hospital Universitario Central de Asturias

    NOT_YET_RECRUITING

    Oviedo, Principality of Asturias, 33011, Spain

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  • Hospital Universitario La Paz

    NOT_YET_RECRUITING

    Madrid, Madrid, 28046, Spain

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  • Hospital Universitario Ramón y Cajal

    RECRUITING

    Madrid, Madrid, 28034, Spain

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  • Hospital Universitario Virgen del Rocío

    NOT_YET_RECRUITING

    Seville, Sevilla, 41013, Spain

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  • Hospital Universitario de Burgos

    RECRUITING

    Burgos, Balearic Islands, 09006, Spain

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  • Hospital Universitario y Politécnico La Fe

    RECRUITING

    Valencia, Valencia, 46026, Spain

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  • Hospital Virgen de las Nieves de Granada

    RECRUITING

    Granada, Granada, 18014, Spain

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  • Institut Paoli Calmette

    NOT_YET_RECRUITING

    Marseille, Marseille, 13009, France

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

    Contact

  • Instituto Catalán de Oncología - Hospital Duran i Reynals

    RECRUITING

    L'Hospitalet de Llobregat, Barcelona, 08908, Spain

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

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