Using PTCy and Ruxolitinib to prevent GVHD after stem cell transplants in children with immune disorders

Safety and Efficacy of Cyclophosphamide and Ruxolitinib for Graft-versus-host-disease Prophylaxis After Hematopoietic Stem Cell Transplantation With Thymoglobulin Serotherapy in Conditioning Regimen in Patients With Inborn Errors of Immunity

PHASE2 · Federal Research Institute of Pediatric Hematology, Oncology and Immunology · NCT06199427

This study is testing if a new combination of medications can help prevent graft-versus-host disease in children with immune disorders who are getting stem cell transplants.

Quick facts

PhasePHASE2
Study typeInterventional
Enrollment100 (estimated)
Ages0 Months to 21 Years
SexAll
SponsorFederal Research Institute of Pediatric Hematology, Oncology and Immunology (other)
Drugs / interventionsruxolitinib, cyclophosphamide, fludarabine
Locations1 site (Moscow)
Trial IDNCT06199427 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of a combined regimen for preventing graft-versus-host disease (GVHD) in patients with inborn errors of immunity undergoing hematopoietic stem cell transplantation (HSCT). It utilizes post-transplant cyclophosphamide (PTCY) and ruxolitinib alongside thymoglobulin in the conditioning regimen. The study aims to determine how well this combination works in reducing the incidence of GVHD, which is a significant risk in these patients. Participants will receive specific doses of cyclophosphamide and ruxolitinib at designated times post-transplant.

Who should consider this trial

Good fit: Ideal candidates are children and young adults aged 0 to 21 years diagnosed with inborn errors of immunity who are eligible for allogeneic HSCT.

Not a fit: Patients with severe concomitant somatic diseases that pose additional risks for complications may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly reduce the risk of GVHD in pediatric patients with inborn errors of immunity undergoing HSCT.

How similar studies have performed: Previous studies have shown promising results with the use of PTCY and ruxolitinib for GVHD prophylaxis, indicating potential success for this combined approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Patients aged ≥ 0 months and \< 21 years
2. Patients diagnosed with NBS eligible for an allogeneic HSCT
3. Signed written informed consent signed by a parent or legal guardian

Exclusion Criteria:

Concomitant severe somatic disease associated with an additional risk of severe complications

Where this trial is running

Moscow

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.

View on ClinicalTrials.gov →

Conditions: Inborn Errors of Immunity

Last reviewed 2026-05-15 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.