HSCT for High Risk Inherited Inborn Errors
Hematopoietic stem cell transplantation has proven effective therapy for individuals with adrenoleukodystrophy (ALD), metachromatic leukodystrophy (MLD) or globoid cell leukodystrophy (GLD, or Krabbe disease). This protocol also considers other inherited metabolic diseases such as, but not limited to, GM1 gangliosidosis, Tay Sachs disease, Sanfilippo syndrome or Sandhoff disease, I-cell disease (mucolipidosis II).
For patients with advanced or rapidly progressive disease, the morbidity and mortality with transplantation is unacceptably high. Unfortunately, there are no viable alternative therapeutic options for these patients; if transplantation is not performed the patients are sent home to die. Our group at Minnesota has developed a new protocol incorporating transplantation using a reduced intensity conditioning regimen designed to decrease toxicity associated with the transplant procedure. This regimen will make use of the drug clofarabine, which has lympholytic and immune suppressive properties without the neurologic toxicity observed in the related compound, fludarabine, commonly used for transplantation. In addition, several agents providing anti-oxidant and anti-inflammatory properties will be used to assist in the stabilization of the disease processes. This revised transplant protocol will test the following: 1) the ability to achieve engraftment with the reduced intensity protocol, 2) the mortality associated with transplant by day 100, 3) patient outcomes, based on differential neurologic, neuropsychologic, imaging and biologic evaluations prior to transplantation and at designated points after transplantation (day 100, 6 months, 1, 2 and 5 years). Additional biologic studies will include pharmacokinetics of clofarabine and mycophenolate mofetil (MMF). In addition, for patients undergoing lumbar puncture studies, cerebrospinal fluid (CSF) will be requested for determinations of biologic parameters.
Globoid Cell Leukodystrophy
Tay Sachs Disease
Procedure: Total body Irradiation
Biological: Hematopoietic Stem Cell Transplantation
Drug: mycophenylate mofetil
Device: Cyclosporine A
|Study Design:||Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Treatment of High Risk, Inherited Lysosomal And Peroxisomal Disorders by Reduced Intensity Hematopoietic Stem Cell Transplantation|
- Donor Cell Engraftment [ Time Frame: Day 42 ] [ Designated as safety issue: No ]The process of transplanted stem cells reproducing new cells.
- Transplant Related Mortality [ Time Frame: Day 100 ] [ Designated as safety issue: Yes ]In the field of transplantation, toxicity is high and all deaths without previous relapse or progression are usually considered as related to transplantation.
- Concentrations of mycophenylate mofetil (MMF) [ Time Frame: Day 3 ] [ Designated as safety issue: No ]MMF levels are to be sent on day +3 to the main laboratory for determinations of MMF kinetics.
- Changes in Magnetic Resonance Imaging (MRI) [ Time Frame: Day 30, 60, 100 and 1 and 2 Years ] [ Designated as safety issue: No ]
- Changes in Neuropsychometric Function [ Time Frame: 6 Months, 1 Year, 2 Years, 3 Years ] [ Designated as safety issue: No ]
- Incidence of Acute Graft Versus Host Disease [ Time Frame: Day 100 ] [ Designated as safety issue: Yes ]Acute Graft-Versus-Host Disease is a severe short-term complication created by infusion of donor cells into a foreign host.
- Incidence of Chronic Graft Versus Host Disease [ Time Frame: 1 Year ] [ Designated as safety issue: Yes ]Chronic Graft-Versus-Host Disease is a severe long-term complication created by infusion of donor cells into a foreign host.
|Study Start Date:||September 2006|
|Study Completion Date:||September 2014|
|Primary Completion Date:||September 2014 (Final data collection date for primary outcome measure)|
Experimental: Treated Patients
Patients receiving chemotherapy (Hydroxyurea, Alemtuzumab, Clofarabine, Melphalan), Hematopoietic Stem Cell Transplantation and radiation therapy (Total body Irradiation) mycophenylate mofetil and cyclosporine A.
days -7 through -3: 40 mg/m^2 intravenously over 2 hours
Other Name: ClolarProcedure: Total body Irradiation
Administration of TBI: The dose of TBI will be 200 cGy given in a single fraction on day -1. The dose rate will be between 10-19 cGy/minute prescribed to the midplane of the patient at the level of the umbilicus.
Other Name: TLIDrug: Melphalan
day -2: 140 mg/m^2 intravenously over 30 minutes
Other Name: AlkeranBiological: Hematopoietic Stem Cell Transplantation
receives infusion of stem cells on day 0Drug: Alemtuzumab
0.3 mg/kg intravenously (IV) days -12 through -8
Other Name: Campath 1-HDrug: mycophenylate mofetil
Day -3 through Day 30: 1 gram three times daily (total daily dose 3 grams/day) if the recipient is >50 kg, or 15 mg/kg three times daily if the recipient is ≤50 kg. The same dosage is used orally or intravenously. Consider dose modification if renal impairment (GFR<25 mL/minute corrected)
Other Name: MMFDevice: Cyclosporine A
Patients will receive CsA therapy beginning on day -3. Dosing of CsA will be 2.5 mg/kg/dose intravenously (IV); if the recipient body weight is <40 kg, dosing will be 3 times daily, and if > 40 kg twice daily. An attempt will be made to maintain a trough cyclosporine level of 250 mg/L to 350 mg/L. Once the patient can tolerate oral medications and has a normal gastrointestinal transit time, CsA will be converted to an oral form at a dose 2.5 x the current IV dose (maximum 12.5 mg/kg/day as initial oral dose).
CsA taper begins at day +100.
Other Name: CsADrug: Hydroxyurea
hydroxyurea (HU) beginning day -28 and continuing through alemtuzumab administration
Please refer to this study by its ClinicalTrials.gov identifier: NCT00383448
|United States, Minnesota|
|Masonic Cancer Center, University of Minnesota|
|Minneapolis, Minnesota, United States, 55455|
|Principal Investigator:||Paul Orchard, MD||Masonic Cancer Center, University of Minnesota|