New antibody combo shows promise for tough childhood cancer

NCT ID NCT03363373

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This phase 2 trial tests a combination of two drugs—naxitamab (an antibody) and GM-CSF (an immune booster)—in children and adults with high-risk neuroblastoma that has not responded well to previous treatments. The goal is to see if this therapy can shrink or eliminate tumors in the bone and bone marrow. Participants receive treatment for up to 101 weeks and are followed for five years.

What this could mean

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

Active substance

Naxitamab (a lab-made antibody) and GM-CSF (a protein that boosts immune cells)

What this could lead to

If successful, this could offer a new treatment option for patients with high-risk neuroblastoma that has not responded to standard therapy.

What could go wrong

This is a phase 2 trial with 122 participants, so results are still preliminary. The treatment may cause side effects, and not all patients may respond.

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.

neuroblastoma

As listed by the trial registrant

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

Contacts and locations

Locations

  • Fondazione IRCCS Istituto Nazionale dei Tumori

    Milan, Milan, 20133, Italy

  • Giannina Gaslini Hospital

    Genoa, Genoa, 16147, Italy

  • Hong Kong Children's Hospital

    Hong Kong, Hong Kong

  • Hospital Infantil Universitario Niño Jesús

    Madrid, 28009, Spain

  • Hospital Sant Joan de Déu

    Barcelona, 08950, Spain

  • Hospital Universitario Virgen Del Rocío

    Seville, Spain

  • Hospital Universitario y Politécnico La Fe

    Valencia, 46026, Spain

  • Johannes Gutenberg-Universität

    Mainz, Germany

  • Leeds General Infirmary

    Leeds, LS1 3EX, United Kingdom

  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065, United States

  • Ospedale Pediatrico Bambino Gesù

    Rome, Italy

  • Queen Mary Hospital

    Hong Kong, Hong Kong

  • Rigshospitalet

    Copenhagen, 2100, Denmark

  • Riley Hospital for Children

    Indianapolis, Indiana, 46202, United States

  • Tata Memorial Centre

    Mumbai, 400012, India

  • The Hospital for Sick Children

    Toronto, M5G 1X8, Canada

  • The Royal Glasgow Children's Hospital

    Glasgow, G51 4TF, United Kingdom

  • University Hospital Regensburg

    Regensburg, Germany

  • University Hospital Southampton

    Southampton, SO16 6YD, United Kingdom

  • University Medical Center Hamburg-Eppendorf

    Hamburg, Germany