Campath/Fludarabine/Melphalan Transplant Conditioning for Non-Malignant Diseases

March 24, 2026 updated by: Washington University School of Medicine

A Study of Hematopoietic Stem Cell Transplantation (HSCT) in Non-Malignant Disease Using a Reduced-Intensity Preparatory Regime

The hypothesis for this study is that a preparative regimen that maximizes host immunosuppression without myeloablation will be well tolerated and sufficient for engraftment of donor hematopoietic cells. It is also to determine major toxicities from these conditioning regimens, within the first 100 days after transplantation.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The study uses reduced intensity conditioning that is immune suppressive to achieve donor cell engraftment without exposure to radiation or high dose chemotherapy in children with non-malignant disorders. The intent is to minimize early and late regimen related toxicities in the context of a reduced intensity regimen.

In addition to maximizing opportunity for donor cell engraftment, the trial seeks to minimize toxicities associated with transplant such as graft versus host disease and employs GVHD prophylaxis that seeks to decrease rates of acute and chronic GVHD in the setting of matched and mismatched donor stem cell transplants from marrow and cord blood sources.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
220

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 1

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Canada
      • Calgary, Canada
        • Completed
        • University of Calgary
    • British Columbia
      • Vancouver, British Columbia, Canada, V6H 3N1
        • Completed
        • BC Children's Hospital
    • Manitoba
      • Winnipeg, Manitoba, Canada, MB R3E 0T4
        • Completed
        • University of Manitoba
  • United States
    • Arizona
      • Phoenix, Arizona, United States, 85016
        • Recruiting
        • Phoenix Children's Hospital
        • Principal Investigator:
          • Wilson A Vasconez Samaniego, MD
    • California
      • Orange, California, United States, 92868
        • Recruiting
        • Children's Hospital of Orange County
        • Principal Investigator:
          • David Buchbinder, MD
      • San Diego, California, United States, 92123
        • Recruiting
        • University of California
        • Principal Investigator:
          • Eric Anderson, MD
    • Connecticut
      • New Haven, Connecticut, United States, 06510
        • Recruiting
        • Yale School of Medicine
        • Principal Investigator:
          • Lakshmanan Krishnamurti, MD
    • District of Columbia
      • Washington D.C., District of Columbia, United States, 20010
        • Recruiting
        • George Washington University School of Medicine
        • Principal Investigator:
          • David Jacobsohn, MD
    • Florida
      • Jacksonville, Florida, United States, 32207
        • Completed
        • Nemours Children's Health
      • Miami, Florida, United States, 33136
        • Recruiting
        • University of Miami
        • Principal Investigator:
          • Edward Dela Ziga, MD
      • Miami, Florida, United States, 33155
        • Completed
        • Miami Children's Hospital
      • St. Petersburg, Florida, United States, 33701
        • Completed
        • All Children's Hospital
    • Illinois
      • Chicago, Illinois, United States, 60614
        • Completed
        • Children's Memorial Hospital
    • Indiana
      • Indianapolis, Indiana, United States, 46202
        • Recruiting
        • Indiana University School of Medicine
        • Principal Investigator:
          • Jodi Skiles, MD
    • Louisiana
      • New Orleans, Louisiana, United States, 70118
        • Completed
        • Children's Hospital of New Orleans
    • Missouri
      • Kansas City, Missouri, United States, 64108
        • Completed
        • Children's Mercy
      • St Louis, Missouri, United States, 63104
        • Recruiting
        • St. Louis University
        • Contact:
          • Deepika Bhatla, MD
        • Principal Investigator:
          • Deepika Bhatla, MD
      • St Louis, Missouri, United States, 63110
        • Recruiting
        • Washington University School of Medicine (in St. Louis)
        • Contact:
        • Contact:
    • New Jersey
      • Hackensack, New Jersey, United States, 07601
        • Completed
        • Hackensack University Medical Center
    • New York
      • New York, New York, United States, 10032
        • Recruiting
        • Columbia University Medical Center
        • Contact:
          • Monica Bhatia, MD
        • Principal Investigator:
          • Monica Bhatia, MD
    • North Carolina
      • Chapel Hill, North Carolina, United States, 27514
        • Recruiting
        • University of North Carolina
        • Principal Investigator:
          • Andrew Gilman, MD
      • Charlotte, North Carolina, United States, 28232
        • Completed
        • Carolinas Medical Center
      • Durham, North Carolina, United States, 27705
        • Completed
        • Duke Children's Hospital
    • Oklahoma
      • Oklahoma City, Oklahoma, United States, 73104
        • Completed
        • The University of Oklahoma
    • Pennsylvania
      • Pittsburgh, Pennsylvania, United States, 15224
        • Completed
        • University of Pittsburg
    • Texas
      • Forth Worth, Texas, United States, 76104
        • Completed
        • Cook Children's Hospital
      • San Antonio, Texas, United States, 78229
        • Completed
        • Texas Transplant Institute
    • Utah
      • Salt Lake City, Utah, United States, 84132
        • Recruiting
        • University of Utah
        • Principal Investigator:
          • Michael Pulsipher, MD

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

No older than 20 years (Child, Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

Stratum 1: Patient must have non-malignant disorder, excluding thalassemia. Must be receiving a 8/8 HLA-matched bone marrow, related or unrelated Stratum 2: Patient must have thalassemia receiving 8/8 HLA-matched bone marrow or 5-8/8 HLA-matched UCB. Related or unrelated.

Stratum 3: Patient must have a hemoglobinopathy receiving 7/8 HLA-matched bone marrow or 5-8/8 HLA-matched UCB. Related or unrelated.

Stratum 4: Patient must have a non-malignant disorder (excluding hemoglobinopathy) receiving 7/8 HLA-matched bone marrow or 5-8/8 HLA-matched UCB. Related or unrelated.

All strata:

  • Recipient age < 21 years
  • Lansky/Karnofsky >/= 40
  • Adequate pulmonary, renal, liver, and other organ function as defined in protocol
  • Negative pregnancy test
  • Adequate total nucleated cell or CD34+ dose of product as defined in protocol
  • If sickle cell, Hemoglobin S <30%

Exclusion Criteria:

  • HIV positive
  • Invasive infection
  • Pregnancy/lactating

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: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Stratum 1
Recipients with non-malignant disorders, excluding thalassemia. Related or unrelated 8/8 HLA-matched bone marrow
Drug: Treatment Plan 1: Stratum 1
Day -50 to -21: Hydroxyurea 30mg/kg PO q day Day -22: Campath-1H 3 mg IV or SQ... Day -21: Campath-1H 10 mg IV or SQ... Day -20: Campath-1H 15 mg IV or SQ... Day -19: Campath-1H 20 mg IV or SQ... Day -8: Fludarabine 30mg/m2 IV... Day -7: Fludarabine 30mg/m2 IV... Day -6: Fludarabine 30mg/m2 IV... Day -5: Fludarabine 30mg/m2 IV... Day -4: Fludarabine 30mg/m2 IV... Day -3: Melphalan 140 mg/m2 IV... (dose modifications for patients <10 kgs) Procedure/Surgery: Hematopoietic stem cell infusion on Day 0...
Drug: GVHD Regimen B: BM Recipients
Day -3: Begin Tacrolimus or cyclosporine Begin MMF Day -1: Abatacept 10mg/kg IV Day +1: Methotrexate 7.5mg/m2 IV Day +3: Methotrexate 7.5mg/m2 IV Day +5: Abatacept 10mg/kg IV Day +6: Methotrexate 7.5mg/m2 IV Day +14: Abatacept 10mg/kg IV Day +28: Abatacept 10mg/kg IV Day +60: Abatacept 10mg/kg IV Day +100: Abatacept 10mg/kg IV Day +180: Abatacept 10mg/kg IV Day +270: Abatacept 10mg/kg IV Day +365: Abatacept 10mg/kg IV
Experimental: Stratum 2
Recipient with transfusion dependent thalassemia. Related or unrelated. 8/8 HLA-matched bone marrow or 5-8/8 HLA-matched UCB
Drug: GVHD Regimen B: BM Recipients
Day -3: Begin Tacrolimus or cyclosporine Begin MMF Day -1: Abatacept 10mg/kg IV Day +1: Methotrexate 7.5mg/m2 IV Day +3: Methotrexate 7.5mg/m2 IV Day +5: Abatacept 10mg/kg IV Day +6: Methotrexate 7.5mg/m2 IV Day +14: Abatacept 10mg/kg IV Day +28: Abatacept 10mg/kg IV Day +60: Abatacept 10mg/kg IV Day +100: Abatacept 10mg/kg IV Day +180: Abatacept 10mg/kg IV Day +270: Abatacept 10mg/kg IV Day +365: Abatacept 10mg/kg IV
Drug: Treatment Plan 2: Strata 2, 3, or 4
Day -50 to -21: Hydroxyurea 30mg/kg PO q day… Day -22: Campath-1H 3 mg IV or SQ... Day -21: Campath-1H 10 mg IV or SQ... Day -20: Campath-1H 15 mg IV or SQ... Day -19: Campath-1H 20 mg IV or SQ... Day -8: Fludarabine 30mg/m2 IV... Day -7: Fludarabine 30mg/m2 IV... Day -6: Fludarabine 30mg/m2 IV... Day -5: Fludarabine 30mg/m2 IV... Day -4: Fludarabine 30mg/m2 IV... Day -4: Thiotepa 8mg/kg IV… Day -3: Melphalan 140 mg/m2 IV... (dose modifications for patients <10 kgs) Procedure/Surgery: Hematopoietic stem cell infusion on day 0...
Drug: GVHD Regimen A: UCB Recipients
Day -3: Begin Tacrolimus or cyclosporine Begin MMF Day -1: Abatacept 10mg/kg IV Day +5: Abatacept 10mg/kg IV Day +14: Abatacept 10mg/kg IV Day +28: Abatacept 10mg/kg IV Day +60: Abatacept 10mg/kg IV Day +100: Abatacept 10mg/kg IV
Experimental: Stratum 3
Recipient with hemoglobinopathy Related or unrelated. 7/8 HLA-matched bone marrow or 5-8/8 HLA-matched UCB
Drug: GVHD Regimen B: BM Recipients
Day -3: Begin Tacrolimus or cyclosporine Begin MMF Day -1: Abatacept 10mg/kg IV Day +1: Methotrexate 7.5mg/m2 IV Day +3: Methotrexate 7.5mg/m2 IV Day +5: Abatacept 10mg/kg IV Day +6: Methotrexate 7.5mg/m2 IV Day +14: Abatacept 10mg/kg IV Day +28: Abatacept 10mg/kg IV Day +60: Abatacept 10mg/kg IV Day +100: Abatacept 10mg/kg IV Day +180: Abatacept 10mg/kg IV Day +270: Abatacept 10mg/kg IV Day +365: Abatacept 10mg/kg IV
Drug: Treatment Plan 2: Strata 2, 3, or 4
Day -50 to -21: Hydroxyurea 30mg/kg PO q day… Day -22: Campath-1H 3 mg IV or SQ... Day -21: Campath-1H 10 mg IV or SQ... Day -20: Campath-1H 15 mg IV or SQ... Day -19: Campath-1H 20 mg IV or SQ... Day -8: Fludarabine 30mg/m2 IV... Day -7: Fludarabine 30mg/m2 IV... Day -6: Fludarabine 30mg/m2 IV... Day -5: Fludarabine 30mg/m2 IV... Day -4: Fludarabine 30mg/m2 IV... Day -4: Thiotepa 8mg/kg IV… Day -3: Melphalan 140 mg/m2 IV... (dose modifications for patients <10 kgs) Procedure/Surgery: Hematopoietic stem cell infusion on day 0...
Drug: GVHD Regimen A: UCB Recipients
Day -3: Begin Tacrolimus or cyclosporine Begin MMF Day -1: Abatacept 10mg/kg IV Day +5: Abatacept 10mg/kg IV Day +14: Abatacept 10mg/kg IV Day +28: Abatacept 10mg/kg IV Day +60: Abatacept 10mg/kg IV Day +100: Abatacept 10mg/kg IV
Experimental: Stratum 4
Recipient with non-malignant disorder, excluding hemoglobinopathy Related or unrelated. 7/8 HLA-matched bone marrow or 5-8/8 HLA-matched UCB
Drug: GVHD Regimen B: BM Recipients
Day -3: Begin Tacrolimus or cyclosporine Begin MMF Day -1: Abatacept 10mg/kg IV Day +1: Methotrexate 7.5mg/m2 IV Day +3: Methotrexate 7.5mg/m2 IV Day +5: Abatacept 10mg/kg IV Day +6: Methotrexate 7.5mg/m2 IV Day +14: Abatacept 10mg/kg IV Day +28: Abatacept 10mg/kg IV Day +60: Abatacept 10mg/kg IV Day +100: Abatacept 10mg/kg IV Day +180: Abatacept 10mg/kg IV Day +270: Abatacept 10mg/kg IV Day +365: Abatacept 10mg/kg IV
Drug: Treatment Plan 2: Strata 2, 3, or 4
Day -50 to -21: Hydroxyurea 30mg/kg PO q day… Day -22: Campath-1H 3 mg IV or SQ... Day -21: Campath-1H 10 mg IV or SQ... Day -20: Campath-1H 15 mg IV or SQ... Day -19: Campath-1H 20 mg IV or SQ... Day -8: Fludarabine 30mg/m2 IV... Day -7: Fludarabine 30mg/m2 IV... Day -6: Fludarabine 30mg/m2 IV... Day -5: Fludarabine 30mg/m2 IV... Day -4: Fludarabine 30mg/m2 IV... Day -4: Thiotepa 8mg/kg IV… Day -3: Melphalan 140 mg/m2 IV... (dose modifications for patients <10 kgs) Procedure/Surgery: Hematopoietic stem cell infusion on day 0...
Drug: GVHD Regimen A: UCB Recipients
Day -3: Begin Tacrolimus or cyclosporine Begin MMF Day -1: Abatacept 10mg/kg IV Day +5: Abatacept 10mg/kg IV Day +14: Abatacept 10mg/kg IV Day +28: Abatacept 10mg/kg IV Day +60: Abatacept 10mg/kg IV Day +100: Abatacept 10mg/kg IV

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Donor engraftment as measured by chimerism
Time Frame: 100 days post-transplant
Engraftment is measured in myeloid and lymphoid lineage cells
100 days post-transplant
Major toxicities as graded by the CTC v4
Time Frame: 100 days post-transplant
Toxicity monitoring includes unanticipated side effects (new) and all severe irreversible toxicities Grade 3 and above unexpected Grade 4 and above - all toxicities that are possibly, probably or definitely related to protocol therapy All deaths irrespective of attribution
100 days post-transplant

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Time to neutrophil and platelet engraftment as measured by complete blood counts
Time Frame: Post transplant
Defined as an ANC >500/microliter and platelets >20,000 or 50,000/microliter depending on disorder
Post transplant
Incidence of acute graft-versus-host disease as measured by protocol grading scale
Time Frame: 100 days post-transplant
aGVHD - involving the skin, gut and liver. Classified according to grading described by Thomas et al. NEJM 1975; 292:895-902
100 days post-transplant
Incidence of chronic graft-versus-host disease as measured by protocol grading scale
Time Frame: 2 years post-transplant
cGVHD classified per Schulman et al. Am J Med 69: 204-17, 1980.
2 years post-transplant
Long-term donor engraftment by donor chimerism
Time Frame: 2 years post-transplant
Donor chimerism is determined by PCR analysis after cell separation into lymphoid and myeloid lineage cells using antibodies. Can also be detected by FISH analysis in the event of donor and recipient sex discrepancy.
2 years post-transplant
Immune reconstitution by laboratory evaluations
Time Frame: 1 year post-transplant
Immune reconstitution detected by absolute numbers of T cell phenotypes, B cells and NK cells. T cell function determined by proliferative response to mitogens. B cell function determined by evaluating anti-tetanus antibody titers.
1 year post-transplant
Overall and disease free survival
Time Frame: 2 years post-transplant
Overall survival is defined as survival with or without disease Event free survival is defined as disease free, severe GVHD free survival, monitoring quality of life and relevant parameters.
2 years post-transplant

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Washington University School of Medicine

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
St. Louis Children's Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Shalini Shenoy, MD, Washington University School of Medicine (in St. Louis)

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 1, 2001

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2031

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 15, 2009

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 15, 2009

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 16, 2009

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 24, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 201110144

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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