Volume 109, Issue 1 pp. 121-129

Haematopoietic cell transplantation in patients with Fanconi anaemia using alternate donors: results of a total body irradiation dose escalation trial

M. L. MacMillan

M. L. MacMillan

Departments of Paediatrics, Medicine, Biostatistics, Therapeutic Radiology, Laboratory Medicine and Pathology, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA, Laboratory of Human Genetics and Hematology,
The Rockefeller University, New York, NY, USA, Hackensack University Medical Center, Hackensack, NJ, USA,
University of Colorado, Denver, CO, USA, Children's Hospital Medical Center, Cincinnati, OH, USA,
and Children's Hospital of Orange County, Orange County, CA, USA

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A. D. Auerbach

A. D. Auerbach

Departments of Paediatrics, Medicine, Biostatistics, Therapeutic Radiology, Laboratory Medicine and Pathology, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA, Laboratory of Human Genetics and Hematology,
The Rockefeller University, New York, NY, USA, Hackensack University Medical Center, Hackensack, NJ, USA,
University of Colorado, Denver, CO, USA, Children's Hospital Medical Center, Cincinnati, OH, USA,
and Children's Hospital of Orange County, Orange County, CA, USA

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S. M. Davies

S. M. Davies

Departments of Paediatrics, Medicine, Biostatistics, Therapeutic Radiology, Laboratory Medicine and Pathology, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA, Laboratory of Human Genetics and Hematology,
The Rockefeller University, New York, NY, USA, Hackensack University Medical Center, Hackensack, NJ, USA,
University of Colorado, Denver, CO, USA, Children's Hospital Medical Center, Cincinnati, OH, USA,
and Children's Hospital of Orange County, Orange County, CA, USA

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T. E. DeFor

T. E. DeFor

Departments of Paediatrics, Medicine, Biostatistics, Therapeutic Radiology, Laboratory Medicine and Pathology, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA, Laboratory of Human Genetics and Hematology,
The Rockefeller University, New York, NY, USA, Hackensack University Medical Center, Hackensack, NJ, USA,
University of Colorado, Denver, CO, USA, Children's Hospital Medical Center, Cincinnati, OH, USA,
and Children's Hospital of Orange County, Orange County, CA, USA

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A. Gillio

A. Gillio

Departments of Paediatrics, Medicine, Biostatistics, Therapeutic Radiology, Laboratory Medicine and Pathology, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA, Laboratory of Human Genetics and Hematology,
The Rockefeller University, New York, NY, USA, Hackensack University Medical Center, Hackensack, NJ, USA,
University of Colorado, Denver, CO, USA, Children's Hospital Medical Center, Cincinnati, OH, USA,
and Children's Hospital of Orange County, Orange County, CA, USA

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R. Giller

R. Giller

Departments of Paediatrics, Medicine, Biostatistics, Therapeutic Radiology, Laboratory Medicine and Pathology, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA, Laboratory of Human Genetics and Hematology,
The Rockefeller University, New York, NY, USA, Hackensack University Medical Center, Hackensack, NJ, USA,
University of Colorado, Denver, CO, USA, Children's Hospital Medical Center, Cincinnati, OH, USA,
and Children's Hospital of Orange County, Orange County, CA, USA

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R. Harris

R. Harris

Departments of Paediatrics, Medicine, Biostatistics, Therapeutic Radiology, Laboratory Medicine and Pathology, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA, Laboratory of Human Genetics and Hematology,
The Rockefeller University, New York, NY, USA, Hackensack University Medical Center, Hackensack, NJ, USA,
University of Colorado, Denver, CO, USA, Children's Hospital Medical Center, Cincinnati, OH, USA,
and Children's Hospital of Orange County, Orange County, CA, USA

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M. Cairo

M. Cairo

Departments of Paediatrics, Medicine, Biostatistics, Therapeutic Radiology, Laboratory Medicine and Pathology, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA, Laboratory of Human Genetics and Hematology,
The Rockefeller University, New York, NY, USA, Hackensack University Medical Center, Hackensack, NJ, USA,
University of Colorado, Denver, CO, USA, Children's Hospital Medical Center, Cincinnati, OH, USA,
and Children's Hospital of Orange County, Orange County, CA, USA

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K. Dusenbery

K. Dusenbery

Departments of Paediatrics, Medicine, Biostatistics, Therapeutic Radiology, Laboratory Medicine and Pathology, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA, Laboratory of Human Genetics and Hematology,
The Rockefeller University, New York, NY, USA, Hackensack University Medical Center, Hackensack, NJ, USA,
University of Colorado, Denver, CO, USA, Children's Hospital Medical Center, Cincinnati, OH, USA,
and Children's Hospital of Orange County, Orange County, CA, USA

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B. Hirsch

B. Hirsch

Departments of Paediatrics, Medicine, Biostatistics, Therapeutic Radiology, Laboratory Medicine and Pathology, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA, Laboratory of Human Genetics and Hematology,
The Rockefeller University, New York, NY, USA, Hackensack University Medical Center, Hackensack, NJ, USA,
University of Colorado, Denver, CO, USA, Children's Hospital Medical Center, Cincinnati, OH, USA,
and Children's Hospital of Orange County, Orange County, CA, USA

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N. K. C. Ramsay

N. K. C. Ramsay

Departments of Paediatrics, Medicine, Biostatistics, Therapeutic Radiology, Laboratory Medicine and Pathology, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA, Laboratory of Human Genetics and Hematology,
The Rockefeller University, New York, NY, USA, Hackensack University Medical Center, Hackensack, NJ, USA,
University of Colorado, Denver, CO, USA, Children's Hospital Medical Center, Cincinnati, OH, USA,
and Children's Hospital of Orange County, Orange County, CA, USA

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D. J. Weisdorf

D. J. Weisdorf

Departments of Paediatrics, Medicine, Biostatistics, Therapeutic Radiology, Laboratory Medicine and Pathology, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA, Laboratory of Human Genetics and Hematology,
The Rockefeller University, New York, NY, USA, Hackensack University Medical Center, Hackensack, NJ, USA,
University of Colorado, Denver, CO, USA, Children's Hospital Medical Center, Cincinnati, OH, USA,
and Children's Hospital of Orange County, Orange County, CA, USA

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J. E. Wagner
First published: 24 December 2001
Citations: 81
Dr M. L. MacMillan, University of Minnesota, Box 484, 420 Delaware Street SE, Minneapolis, MN 55455, USA. E-mail: [email protected].

Abstract

Allogeneic haematopoietic cell transplantation (HCT) is the only therapeutic modality capable of correcting the haematologic manifestations of Fanconi anaemia (FA). However, HCT from alternative donors has been associated with poor survival. Between June 1993 and July 1998, 29 FA patients (median age 12·1 years; range 3·7–48·5 years) were enrolled in a prospective phase I–II dose escalation study. All patients were treated with cyclophosphamide 40 mg/kg, total body irradiation (TBI) 450 cGy or 600 cGy and antithymocyte globulin (ATG), followed by HCT from an alternative donor. Graft-versus-host disease (GVHD) prophylaxis consisted of cyclosporin A for 6 months, short course methylprednisolone (2 mg/kg/day) between days +5 and +19 and marrow T-cell depletion by counterflow elutriation. The probability of developing grade III–IV toxicity was 17% (95% CI 3–31%). For the 25 marrow recipients, the probability of neutrophil engraftment (ANC̊  0·5 × 109/l by day 45) was 63% (95% CI 42–82%). Probabilities of grade II–IV acute GVHD and chronic GVHD were 32% (95%CI 10–54%) and 0% respectively. With a median follow-up of 18 months, the probability of survival for the entire cohort at 1 year was 34% (95% CI 17–51%). The presence of lymphocyte somatic mosaicism [i.e. the presence of diepoxybutane (DEB)-insensitive cells] was associated with a significantly increased risk of graft failure. Disappointingly, the use of higher dose TBI and post-transplant ATG did not improve engraftment. More effective peritransplant immunosuppression, especially in FA patients with somatic mosaicism, was required to overcome the barrier of graft rejection. New conditioning regimens adapted to each individual's alkylator sensitivity are needed to improve the outcome of alternative donor HCT for FA.

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