Using Sirolimus to treat lymphatic and vascular malformations in children

Role of Sirolimus in Treatment of Microcystic , Mixed Lymphatic and Vascular Malformations

Observational Sohag University · NCT06160739

This study is testing if Sirolimus can help children aged 6 months to 12 years with hard-to-treat lymphatic malformations that haven’t improved with other treatments.

Quick facts

Study typeObservational
Enrollment10 (estimated)
Ages6 Months to 12 Years
SexAll
SponsorSohag University Academic / other
Locations1 site (Sohag)
Trial IDNCT06160739 on ClinicalTrials.gov

What this trial studies

This observational study investigates the effectiveness of Sirolimus, an oral medication, in treating microcystic and mixed lymphatic malformations in children aged 6 months to 12 years. These malformations are challenging to treat surgically and often do not respond to other treatments. Sirolimus has shown promise in preventing the growth of abnormal lymphatics and inducing regression of lesions. The study aims to evaluate the outcomes of patients who have not benefited from previous treatments.

Who should consider this trial

Good fit: Ideal candidates are children aged 6 months to 12 years diagnosed with microcystic or mixed lymphatic malformations who have not responded to other treatments.

Not a fit: Patients with macrocystic lymphatic malformations or high-flow vascular malformations will not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new effective option for managing difficult lymphatic and vascular malformations in children.

How similar studies have performed: Previous studies have indicated that Sirolimus can be effective in treating similar conditions, suggesting a potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* from age 6 months to 12 years , not before 6 months to complete their vaccination program \& maturation of hepatic enzymes .
* Patients diagnosed with microcystic \& mixed Lymphatic malformations .
* After failure of other lines of treatment as regard propranolol , steroid for infantile haemangiomas \& Vascular malformations and lymphovascular malformations .
* After failure of surgical excision \& injection of bleomycin of Lympho-vascular malformations

Exclusion Criteria:

* Macrocystic Lymphatic malformations \& high flow vascular malformations like arterio-venous malformations .
* An active infection that requires systemic treatment during the attack .
* Side effects of the drug as ( history of an allergic reaction to sirolimus or patients who develop severe allergic reaction to drug during treatment , hyperlipidemia , leucopenia , etc... )
* Chronic liver or kidney disease or on chronic drug treatment as (steroids, interferon or chemotherapeutic agents) .
* An immunodeficiency condition such as a human immunodeficiency viral infection or primary immunodeficiency disease.
* Patients who received drug less than 6 months duration .

Where this trial is running

Sohag

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Microcystic Lymphatic MalformationCombined Vascular MalformationVascular Malformations
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.