Weekly treatment with sirolimus for venous and lymphatic malformations

Weekly Sirolimus Therapy for the Treatment of Venous and Lymphatic Malformations

Phase 2 Interventional Medical University of South Carolina · NCT04861064

This study is testing if giving sirolimus once a week can help people with venous and lymphatic malformations feel better while causing fewer side effects than taking it every day.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment24 (estimated)
Ages2 Years and up
SexAll
SponsorMedical University of South Carolina Academic / other
Locations1 site (Charleston, South Carolina)
Trial IDNCT04861064 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the effectiveness of administering sirolimus once a week for patients with venous and lymphatic malformations. The study aims to assess not only the therapeutic benefits of this dosing schedule but also patient satisfaction and any adverse effects experienced during the treatment. Participants will receive the medication for a duration of six months, with the possibility of continuing treatment afterward. The trial seeks to provide a safer alternative to daily dosing, which is associated with significant side effects.

Who should consider this trial

Good fit: Ideal candidates for this study are patients aged 2 years and older diagnosed with venous, lymphatic, or venolymphatic malformations.

Not a fit: Patients with contraindications to sirolimus, a history of transplant, or those who are pregnant may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could offer a more manageable and effective option for patients suffering from venous and lymphatic malformations.

How similar studies have performed: While the use of sirolimus has shown promise in other studies, this specific approach of weekly dosing is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient 2 years of age and older
* Venous, lymphatic, or venolymphatic malformations

Exclusion Criteria:

* Children with contraindication to use of sirolimus
* Children with history of transplant
* Children with a history of natural immunodeficiency
* Children with a history of artificially induced immunodeficiency
* Children with a history of a serious or life-threatening infection
* Children taking CYP3A4 inhibiting medications
* Children taking strong CYP3A4 inducers to avoid subtherapeutic dosing/exposure.
* Inability or unwillingness of subject or legal guardian/representative to give informed consent
* Women that are or may become pregnant o Sirolimus is a Pregnancy Category C drug. No randomized controlled studies have been done on pregnant women. Women of childbearing potential must be on effective contraception prior to, during, and for 12 weeks following sirolimus therapy.

Where this trial is running

Charleston, South Carolina

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 Venous MalformationLymphatic Malformation
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.