Could a transplant drug shrink Children's birthmarks?

NCT ID NCT02509468

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested the drug sirolimus (rapamycin) in 63 children aged 6 to 18 with large, complicated slow-flow vascular malformations (abnormal blood or lymph vessels). Each child had an observation period followed by 4 to 8 months of sirolimus treatment. The main goal was to see if the malformation shrank on MRI scans. The trial is completed, and results may help decide if sirolimus is a useful treatment for these rare conditions.

What this could mean

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

Active substance

sirolimus (also known as rapamycin)

What this could lead to

If it works, this could point toward a drug treatment to shrink or control problematic vascular malformations in children, reducing pain and complications.

What could go wrong

This is a small, early-phase trial with only 63 children and no placebo group. The results may not apply to all types of malformations, and sirolimus can have side effects like mouth sores and infections.

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.

microcystic lymphatic malformation mixed cystic lymphatic malformation vascular malformation venous hemangioma

As listed by the trial registrant

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

Contacts and locations

Locations

  • Consultations externes de Dermatologie, Hôpital Clocheville, CHU Tours

    Tours, 37000, France

  • Explorations Médecine Vasculaire Hôpital A. Michallon, CHU de Grenoble

    Grenoble, 38700, France

  • Service de Dermatologie, Hôpital Hôtel-Dieu, CHU Nantes

    Nantes, 44000, France

  • Service de Dermatologie, Hôpital Pontchaillou, CHU RENNES

    Rennes, 35000, France

  • Service de Dermatologie, Hôpital St Eloi, CHU Montpellier

    Montpellier, 34000, France

  • Service de Dermatologie, vénéréologie et cancérologie cutanée, Hôpital La Timone APHM

    Marseille, 13000, France

  • Service de dermatologie, APHP Necker

    Paris, 75743, France

  • Service de dermatologie, CHU Angers

    Angers, 49933, France

  • Service de dermatologie, CHU Nice

    Nice, 06202, France

  • Service de dermatologie, Hôpital Larrey, CHU Toulouse

    Toulouse, 31059, France

  • Service de dermatologie, Hôpital du Bocage, CHU Dijon

    Dijon, 21079, France

  • Service de radiologie Hôpital Femme-Mère-Enfant, Hospices Civils de Lyon

    Lyon, 69000, France