Stem Cell Transplant in Sickle Cell Disease and Thalassemia
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ClinicalTrials.gov Identifier: NCT00408447 |
Recruitment Status :
Active, not recruiting
First Posted : December 7, 2006
Last Update Posted : March 22, 2023
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Condition or disease | Intervention/treatment | Phase |
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Sickle Cell Disease Beta Thalassemia | Drug: Busulfan Drug: Fludarabine Drug: Alemtuzumab Procedure: Allogeneic stem cell transplant | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 53 participants |
Allocation: | Non-Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Allogeneic Stem Cell Transplant to Induce Mixed Donor Chimerism in Patients With Sickle Cell Disease and Thalassemia |
Actual Study Start Date : | September 2004 |
Estimated Primary Completion Date : | December 2023 |
Estimated Study Completion Date : | December 2023 |

Arm | Intervention/treatment |
---|---|
SCD group
Sickle Cell Disease patients receiving chemotherapy (Busulfan, Fludarabine and Alemtuzumab) will undergo allogeneic stem cell transplant.
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Drug: Busulfan
Busulfan 4 mg/kg/d x 4d
Other Name: Busulfex Drug: Fludarabine Fludarabine 30 mg/m2/d x 6d
Other Name: Fludara Drug: Alemtuzumab Alemtuzumab 2mg/m2 x 1d, 6mg/m2 x 2 d, 20mg/m2 x 2d
Other Name: Campath Procedure: Allogeneic stem cell transplant Allogeneic stem cells will be given on day 0 (after chemotherapy conditioning)obtained either from a family donor (first degree relative) or sibling cord blood donor.
Other Names:
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BT group
Beta Thalassemia patients receiving chemotherapy (Busulfan, Fludarabine and Alemtuzumab) will undergo allogeneic stem cell transplant.
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Drug: Busulfan
Busulfan 4 mg/kg/d x 4d
Other Name: Busulfex Drug: Fludarabine Fludarabine 30 mg/m2/d x 6d
Other Name: Fludara Drug: Alemtuzumab Alemtuzumab 2mg/m2 x 1d, 6mg/m2 x 2 d, 20mg/m2 x 2d
Other Name: Campath Procedure: Allogeneic stem cell transplant Allogeneic stem cells will be given on day 0 (after chemotherapy conditioning)obtained either from a family donor (first degree relative) or sibling cord blood donor.
Other Names:
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- Prevalence of toxicity associated with moderately ablative therapy (busulfan/fludarabine/alemtuzumab) and allogeneic stem cell transplantation in selected patients with Sickle Cell Disease (SCD) and Beta Thalassemia (BT) [ Time Frame: Day 30, Day 60, Day 100, Day 180, 1 year, 2 years, 3 years, 5 years, 10 years ]To examine if giving lower doses of chemotherapy will result in less severe side-effects but with permanent control of the disease.
- Time to donor hematological reconstitution (neutrophil, red blood cell and platelet recovery) following moderately ablative therapy and allogeneic stem cell transplantation in selected patients with SCD and BT [ Time Frame: days 60, 100, 180, 365, 730 ]To examine if giving lower doses of chemotherapy and bone marrow replacement can result in control of the disease.
- Incidence of acute and chronic graft versus host disease (GVHD) following moderately ablative therapy and allogeneic stem cell transplantation in selected patients with SCD and BT [ Time Frame: as clinically appropriate ]To examine if giving lower doses of chemotherapy will result in successful bone marrow replacement.
- Percent of patients who have either a complete, very good partial, partial or no response (clinical/laboratory) following moderately ablative therapy and allogeneic stem cell transplantation in selected patients with SCD and BT [ Time Frame: 6mos, 1 yr, 2 yr ]To examine if giving lower doses of chemotherapy with bone marrow replacement will result in good control of the disease.
- Quality of life (QOL) score [ Time Frame: Day +180; year 1, 3, 5, 10 ]To determine the impact of moderately ablative stem cell transplant on quality of life and neurocognitive functioning with SCD over time
- Incidence of primary and secondary graft failure [ Time Frame: Day +42, +60, ]To collect data on graft failure
- Percent of mixed donor chimerism [ Time Frame: Day +30, 60, 100, 180, 365, 730, and 1005 ]To collect data on donor chimerism

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Ages Eligible for Study: | 1 Month to 30 Years (Child, Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Sickle Cell Disease:
- Diagnosis of Homozygous Hemoglobin S Disease or Heterozygous Hemoglobin Sickle Cell (SC) or S 0/+ thalassemia, or Sickle/variant resulting in Chronic Hemolytic Anemia with hemoglobin (HgB) ≤10 mg/dL
- Age ≤30
- Matched sibling donor and asymptomatic, or 8/8 human leukocyte antigen (HLA) matched unrelated adult donor
Patient must have adequate organ function as below:
- Adequate renal function defined as serum creatinine ≤1.5 x normal, or Creatinine clearance or radioisotope glomerular filtration rate (GFR) >100 ml/min/1.73 m2 or >70ml/min/1.73m2 for patients >16 years old
- Adequate liver function defined as serum glutamic oxaloacetic transaminase (SGOT) (aspartate aminotransferase (AST)) or serum glutamic-pyruvic transaminase (SGPT) (alanine aminotransferase (ALT)) < 5.0 x normal
- Adequate Cardiac Function defined as shortening fraction of ≥28% by echocardiogram, or ejection fraction of ≥48% by radionuclide angiogram or echocardiogram
- Adequate pulmonary function defined as corrected Diffusing capacity of the lungs for carbon monoxide (DLCO) ≥40% by pulmonary function test, or for children who are unable to perform DLCO maneuver ≥85% O2 saturation, no evidence of dyspnea at rest
Exclusion criteria:
General
- Karnofsky/Lansky Performance Score <60%
- Demonstrated lack of compliance with medical care
- Pregnant or nursing
- Evidence of uncontrolled bacterial, viral or fungal infections (currently taking medication and progression of clinical symptoms) within 1 month prior to starting the conditioning regimen. Patients with fever or suspected minor infection should await resolution of symptoms before starting the conditioning regimen.
Histologic Exam of Liver (liver biopsy) with bridging fibrosis or cirrhosis.

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): NCT00408447
United States, New York | |
Morgan Stanley Children's Hospital, New York-Presbyterian, Columbia University | |
New York, New York, United States, 10032 |
Principal Investigator: | Monica Bhatia, MD | Columbia University |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Columbia University |
ClinicalTrials.gov Identifier: | NCT00408447 |
Other Study ID Numbers: |
AAAA7701 CHNY-01-503 ( Other Identifier: CU ) |
First Posted: | December 7, 2006 Key Record Dates |
Last Update Posted: | March 22, 2023 |
Last Verified: | March 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
stem cell transplant sickle cell disease thalassemia |
moderately ablative cord blood transplant matched family donor |
Anemia, Sickle Cell Thalassemia beta-Thalassemia Anemia, Hemolytic, Congenital Anemia, Hemolytic Anemia Hematologic Diseases Hemoglobinopathies Genetic Diseases, Inborn Fludarabine Busulfan |
Alemtuzumab Antineoplastic Agents Molecular Mechanisms of Pharmacological Action Immunosuppressive Agents Immunologic Factors Physiological Effects of Drugs Alkylating Agents Antineoplastic Agents, Alkylating Myeloablative Agonists Antineoplastic Agents, Immunological |