Immune Disorder HSCT Protocol

February 18, 2026 updated by: Washington University School of Medicine

A Study of Hematopoietic Stem Cell Transplantation (HSCT) in Immune Function Disorders Using a Reduced Intensity Preparatory Regime

This study hypothesizes that a reduced intensity immunosuppressive preparative regimen will establish engraftment of donor hematopoietic cells with acceptable early and delayed toxicity in patients with immune function disorders. A regimen that maximizes host immune suppression is expected to reduce graft rejection and optimize donor cell engraftment.

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

20

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Missouri
      • St Louis, Missouri, United States, 63110
        • Washington University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

No older than 21 years (Child, Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • </= 28 years of age
  • Performance status >/= 40
  • DLCO >/= 40%
  • LVEF >/=40% or LVSF >/=26%
  • Serum creatinine < 2x ULN
  • Liver enzymes </= 5x ULN
  • Negative pregnancy test
  • Suitably matched donor (6/6 matched sib UCB, 8/8 matched sib BM or PBSC, 5-6/6 matched unrelated UCB, 7-8/8 matched unrelated BM, double cord)

Exclusion Criteria:

  • Known diagnosis of HIV I/II
  • Pregnant or breastfeeding
  • Uncontrolled invasive fungal or bacterial infections within 1 month prior to starting alemtuzumab
  • Uncontrolled viral infection within 1 week prior to starting alemtuzumab

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Preparative
Drug: Transplant preparative regimen of alemtuzumab, fludarabine, thiotepa, and melphalan
Between days -23 and -15: alemtuzumab test dose, 3mg IV or SQ Day -14: alemtuzumab, 10mg IV or SQ Day -13: alemtuzumab, 15mg IV or SQ Day -12: alemtuzumab, 20mg IV or SQ Days -8 to -4: fludarabine, 30mg/m2 IV Day -4: thiotepa 4mg/kg IV q 12 hours Day -3: melphalan, 140mg/m2 IV Day 0: stem cell infusion Day +7: G-CSF

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Number of participants with donor engraftment
Time Frame: 1 year post transplant
1 year post transplant

Secondary Outcome Measures

Outcome Measure
Time Frame
Major Transplant Related Toxicities
Time Frame: 1 years post transplant
1 years post transplant
Time to neutrophil recovery
Time Frame: within 100 days post transplant
within 100 days post transplant
Number of patient with acute GVHD
Time Frame: 180 days post transplant
180 days post transplant
Number of participants with infectious complications
Time Frame: 2 years post transplant
2 years post transplant
Time to immune reconstitution
Time Frame: 2 years post transplant
2 years post transplant
Overall survival
Time Frame: 2 years post transplant
2 years post transplant
Time to platelet recovery
Time Frame: within 100 days post transplant
within 100 days post transplant
Number of patients with chronic GVHD
Time Frame: 2 years post transplant
2 years post transplant
Disease free survival
Time Frame: 2 years post transplant
2 years post transplant

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Washington University School of Medicine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 29, 2013

Primary Completion (Actual)

April 25, 2025

Study Completion (Estimated)

April 1, 2026

Study Registration Dates

First Submitted

March 19, 2013

First Submitted That Met QC Criteria

March 26, 2013

First Posted (Estimated)

April 1, 2013

Study Record Updates

Last Update Posted (Actual)

February 19, 2026

Last Update Submitted That Met QC Criteria

February 18, 2026

Last Verified

February 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 201301135

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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