Haplo T-Cell Depleted Transplantation in High-Risk Sickle Cell Disease (HaploSCD)
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ClinicalTrials.gov Identifier: NCT01461837 |
Recruitment Status :
Active, not recruiting
First Posted : October 28, 2011
Last Update Posted : March 22, 2023
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This study is being done to determine the safety and outcome (long-term control) of a high-dose chemotherapy regimen followed by an infusion of CD34 selected (immune cells) stem cells from a partially matched adult family member donor, called haploidentical stem cell transplantation, in high-risk sickle cell disease patients.
Funding Source - FDA OOPD
Condition or disease | Intervention/treatment | Phase |
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Sickle Cell Disease | Drug: CD34 selected T-cell depleted allogeneic SCT | Phase 2 |
The purpose of this study is to investigate host myeloimmunosuppressive conditioning followed by familial haploidentical T cell depleted allogeneic stem cell transplantation in patients with high risk Sickle Cell Disease (SCD). It is hypothesized that it will be safe and well tolerated, and result in sustained donor chimerism, acceptable engraftment and immune reconstitution. Also, that it will limit SCD related organ damage resulting in improved and/or stable neurological, neurocognitive, pulmonary and pulmonary vascular function and health related quality of life (QOL).
Patients 2-20.99 years of age with a diagnosis of high-risk SCD and with an unaffected HLA partially matched family donor and meeting eligibility criteria (inclusion and exclusion criteria) are eligible.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 21 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Familial Haploidentical T-Cell Depleted Transplantation in High-Risk Sickle Cell Disease (IND 14359) |
Study Start Date : | January 2012 |
Estimated Primary Completion Date : | December 2023 |
Estimated Study Completion Date : | December 2025 |

Arm | Intervention/treatment |
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Experimental: Haplo Stem Cell Transplantation
CD34 selected T-cell depleted allogeneic SCT
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Drug: CD34 selected T-cell depleted allogeneic SCT
Hydroxyurea (60 mg/kg/day) and azathioprine (3 mg/kg/day) day -59 to day -11; fludarabine (30 mg/m2) Days -17, -16, -15, -14, -13; busulfan (3.2 mg/kg/day) Days -12, -11, -10, -9; thiotepa (10 mg/kg IV) day -8; cyclophosphamide (50 mg/kg) Days -7, -6, -5, -4; TLI on day -3; rabbit ATG (2.0 mg/kg/day) day -5,-4,-3, and -2; Stem Cell infusion day 0
Other Names:
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- Treatment related events [ Time Frame: 1 year ]Death, primary or late graft rejection, or recurrence of disease and acceptable rate of hematopoietic engraftment, acute and chronic graft-versus-host disease
- neurological/neurocognitive status [ Time Frame: 2 years ]Change from baseline in neurological/neurocognitive status
- Pulmonary/pulmonary vascular status [ Time Frame: 2 years ]Change from baseline of Pulmonary/pulmonary vascular status
- Health-related quality of life [ Time Frame: 4 years ]Change from baseline of Health-related quality of life (CHRIs-HSCT/CHRIs-General)

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Ages Eligible for Study: | 2 Years to 20 Years (Child, Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Homozygous Hemoglobin S Disease, or Hemoglobin S Beta0/+ thalassemia
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Patients must demonstrate one or more of the following Sickle Cell Disease Complications
- Clinically significant neurologic event (stroke) or any neurologic deficit lasting >24 hours that is accompanied by an infarct on cerebral MRI
- Minimum of two episodes of acute chest syndrome.
- Recurrent painful events (at least 3 in the 2 years prior to enrollment).
- Abnormal TCD study requiring starting on chronic transfusion therapy.
- At least one silent infarct lesion on a MRI scan of the head.
- A familial haploidentical donor without homozygous sickle cell disease
- Adequate organ function (renal, liver, cardiac and pulmonary function)
- Karnofsky or Lansky (age appropriate) Performance Score ≥50%
- Liver biopsy is optional to assess for iron overload in chronically transfused patients.
Exclusion Criteria:
- Females who are pregnant or breast-feeding
- SCD Patients with documented uncontrolled infection
- SCD patients who have an unaffected HLA matched family donor willing to proceed to donation
- Karnofsky/Lansky (age appropriate) Performance Score <50% (hemiplegia alone secondary to a previous stroke is not an exclusion)
- Demonstrated lack of compliance with medical care.
- Clinically significant fibrosis or cirrhosis of the liver
- Previously received a HSCT

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01461837
United States, California | |
University of California Los Angeles (UCLA) | |
Los Angeles, California, United States, 90095 | |
Children's Hospital and Research Center Oakland | |
Oakland, California, United States, 94609 | |
United States, Illinois | |
Lurie Children's Hospital | |
Chicago, Illinois, United States, 60611-2605 | |
United States, Missouri | |
Washington University/St. Louis Children's Hospital | |
Saint Louis, Missouri, United States, 63110 | |
United States, New York | |
New York Medical College | |
Valhalla, New York, United States, 10595 | |
United States, Wisconsin | |
Medical College of Wisconsin/Children's Hospital of Wisconsin | |
Milwaukee, Wisconsin, United States, 53226 |
Principal Investigator: | Mitchell S Cairo, MD | New York Medical College |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Mitchell Cairo, Principal Investigator, New York Medical College |
ClinicalTrials.gov Identifier: | NCT01461837 |
Other Study ID Numbers: |
NYMC526-4090 FD-R-0004090 ( Other Grant/Funding Number: FDA OOPD ) |
First Posted: | October 28, 2011 Key Record Dates |
Last Update Posted: | March 22, 2023 |
Last Verified: | March 2023 |
sickle cell disease stem cell transplantation haploidentical |
Anemia, Sickle Cell Anemia, Hemolytic, Congenital Anemia, Hemolytic Anemia |
Hematologic Diseases Hemoglobinopathies Genetic Diseases, Inborn |