- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00257543
SALT: Alternative Donor Bone Marrow and Cord Blood Transplantation for High Risk Sickle Cell Disease
SALT - Alternative Donor Bone Marrow and Cord Blood Transplantation for High Risk Sickle Cell Disease
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Unfortunately, less than 1/4th of patients with severe SCD will have a matched sibling donor that can serve as a BMT donor. This research protocol proposes to study the safety and usefulness of "alternate donor transplant" (using donors other than matched siblings). We will offer this treatment to children with severe sickle cell disease that do not have a matched sibling BMT donor. Alternative donors can be family members who are slightly less than completely matched, unrelated volunteer donors who are completely matched, and donated banked umbilical cord blood that is completely or nearly completely matched.
Alternative donor transplant has been performed commonly in patients with cancer, and also provides curative therapy for several non-malignant diseases (severe immunodeficiency, marrow failure and metabolic storage diseases). Alternate donor transplants carry higher risks of complications, including graft-versus-host disease, infection, and graft failure. Therefore, we will be selective about which patients are invited to participate, limiting eligibility to those patients that have had a severe SCD related problem (rather than those who are doing well and are likely to have few SCD related problems), but excluding patients who have such severe organ damage that they are more likely to die during transplant, and limiting eligibility to a young age group. A multi-step review algorithm that includes internal, local and external expert review has been constructed to provide a thorough, safe and ethical accrual process. We will treat patients using drugs and methods commonly used in alternate donor transplant for other diseases such as leukemia, and incorporate lessons learned from our previous experience in BMT for sickle cell by modifying supportive care measures. Special attention will be given to evaluation of post-BMT effects in this population, as well as potential reasons for adverse effects (such as graft failure).
We think that Atlanta is a particularly good place to study this kind of transplant for several reasons. One reason is experience: our program has transplanted more children with SCD than any other single institution in North America, with excellent outcomes. Additionally, SCD patients in our area often have been treated on a special red cell transfusion program that limits the number of people donating the blood; we think this is likely to reduce the chance of graft failure.
Study Type
Enrollment (Actual)
Phase
- Early Phase 1
Contacts and Locations
Study Locations
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Georgia
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Atlanta, Georgia, United States, 30322
- Children's Healthcare of Altanta
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Hemoglobin SS, hemoglobin SC, or hemoglobin S0 thalassemia
- Donor available: Partially (5/6) HLA-matched relative (PMRD), matched (6/6) unrelated marrow donor or umbilical cord (5/6 or 6/6) of appropriate size (see 6.3.2) , using high-resolution HLA typing. Donor must not be homozygous for HgbS and must meet standard donor eligibility criteria of the Blood and Marrow Transplant Program.
- Severe SCD, defined by one of the following (modified Walters criteria):
oPrevious (6 months prior) central nervous system event lasting longer than 24 hours, plus objective imaging evidence of CNS vasculopathy, with or without residual neurologic findings oFrequent (3 per year for 2 years) painful vaso-occlusive episodes (defined as episode lasting 4 hours and requiring hospitalization or outpatient treatment with parenteral narcotics) oRecurrent (3 in lifetime) acute chest syndrome events which have necessitated exchange transfusion or chronic transfusion therapy. Must have failed a good-faith trial of hydroxyurea (failure defined as a reduction of less than 50% in the incidence of vaso-occlusive events over a period of at least 18 months) or have demonstrated an inability to take the drug due to side effects.
oAny combination of 3 acute chest syndrome episodes and vaso-occlusive pain episodes (defined as above) yearly for 3 years. Must have failed a good-faith trial of hydroxyurea (failure defined as a reduction of less than 50% in the incidence of vaso-occlusive events over a period of at least 18 months) or have demonstrated an inability to take the drug due to side effects.
oStage I or II sickle lung disease oRed-cell alloimmunization (2 antibodies) on chronic transfusion therapy
Exclusion Criteria:
oSuitable HLA-identical relative donor is available oBiopsy proven chronic active hepatitis, portal fibrosis, or cirrhosis, or serologic evidence of active hepatitis.
oSCD chronic lung disease stage III (see Appendix) oSevere renal dysfunction defined as <50% of predicted normal GFR for age. oSevere cardiac dysfunction defined as shortening fraction < 25%. oSevere residual neurologic impairment other than hemiplegia alone, defined as full-scale IQ 70, quadriplegia or paraplegia, inability to ambulate, inability to communicate without assistive device, or any impairment resulting in decline of Lansky performance score to <70%.
oCNS event occurring within 6 months prior to transplant oKarnofsky or Lansky functional performance score < 70% (see Appendix) oConfirmed HIV seropositivity. oPatient with unspecified chronic toxicity serious enough to detrimentally affect the patient's capacity to tolerate bone marrow transplantation.
oPatient or patient's guardian(s) unable to understand the nature and risks inherent in the BMT process.
oHistory of lack of compliance with medical care that would jeopardize transplant course.
Study Plan
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 |
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Experimental: single arm study
this is a single arm study
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bone marrow transplant - alternative donors for bone marrow and cord blood transplants
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
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To determine the frequency of donor engraftment after alternate donor transplantation in children with severe sickle cell disease.
Time Frame: 1 year after completion of study accrual
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1 year after completion of study accrual
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Collaborators and Investigators
Sponsor
Investigators
- Study Chair: Ann Haight, M.D., Children's Healthcare of Atlanta/Emory University
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 876-2003
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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