Volume 18, Issue 6 pp. 602-608
Original Article

A trial of plerixafor adjunctive therapy in allogeneic hematopoietic cell transplantation with minimal conditioning for severe combined immunodeficiency

Christopher C. Dvorak

Corresponding Author

Christopher C. Dvorak

Division of Pediatric Allergy, Immunology and Blood and Marrow Transplant, University of California San Francisco Benioff Children's Hospital, San Francisco, CA, USA

Christopher C. Dvorak, Division of Pediatric Allergy, Immunology, & Blood and Marrow Transplantation, University of California San Francisco, 505 Parnassus Ave., M-659, San Francisco, CA 94143-1278, USA

Tel.: 415 476 2188

Fax: 415 502 4867

E-mail: [email protected]

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Biljana N. Horn

Biljana N. Horn

Division of Pediatric Allergy, Immunology and Blood and Marrow Transplant, University of California San Francisco Benioff Children's Hospital, San Francisco, CA, USA

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Jennifer M. Puck

Jennifer M. Puck

Division of Pediatric Allergy, Immunology and Blood and Marrow Transplant, University of California San Francisco Benioff Children's Hospital, San Francisco, CA, USA

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Agnieszka Czechowicz

Agnieszka Czechowicz

Division of Blood & Marrow Transplantation, Stanford University School of Medicine, Stanford, CA, USA

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Judy A. Shizuru

Judy A. Shizuru

Division of Blood & Marrow Transplantation, Stanford University School of Medicine, Stanford, CA, USA

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Rose M. Ko

Rose M. Ko

Division of Blood & Marrow Transplantation, Stanford University School of Medicine, Stanford, CA, USA

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Morton J. Cowan

Morton J. Cowan

Division of Pediatric Allergy, Immunology and Blood and Marrow Transplant, University of California San Francisco Benioff Children's Hospital, San Francisco, CA, USA

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First published: 30 June 2014
Citations: 15

Abstract

For infants with SCID, the ideal conditioning regimen before allogeneic HCT would omit cytotoxic chemotherapy to minimize short- and long-term complications. We performed a prospective pilot trial with G-CSF plus plerixafor given to the host to mobilize HSC from their niches. We enrolled six patients who received CD34-selected haploidentical cells and one who received T-replete matched unrelated BM. All patients receiving G-CSF and plerixafor had generally poor CD34+ cell and Lin-CD34+CD38CD90+CD45RA HSC mobilization, and developed donor T cells, but no donor myeloid or B-cell engraftment. Although well tolerated, G-CSF plus plerixafor alone failed to overcome physical barriers to donor engraftment.

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