Mary Eapen1, Ruta Brazauskas2, Mark C Walters3, Françoise Bernaudin4, Khalid Bo-Subait5, Courtney D Fitzhugh6, Jane S Hankins7, Julie Kanter8, Joerg J Meerpohl9, Javier Bolaños-Meade10, Julie A Panepinto11, Damiano Rondelli12, Shalini Shenoy13, Joi Williamson14, Teonna L Woolford14, Eliane Gluckman15, John E Wagner16, John F Tisdale6. 1. Center for International Blood and Marrow Transplant Research, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA. Electronic address: meapen@mcw.edu. 2. Division of Biostatistics, Institute for Health and Society, Medical College of Wisconsin, Milwaukee, WI, USA. 3. University of California San Francisco Benioff Children's hospital, Oakland, CA, USA. 4. Referral Center for Sickle Cell Disease, CHIC, Creteil Hospital, Paris, France. 5. Center for International Blood and Marrow Transplant Research, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA. 6. Cellular and Molecular Therapeutics Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA. 7. Department of Hematology, St Jude Children's Research hospital, Memphis, TN, USA. 8. University of Alabama, Birmingham, AL, USA. 9. Institute for Evidence in Medicine, Medical Center-University of Freiburg, Freiburg, Germany. 10. The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA. 11. Department of Pediatrics, Medical College of Wisconsin/Children's Hospital of Wisconsin, Milwaukee, WI, USA. 12. Division of Hematology/Oncology, University of Illinois at Chicago, Chicago, IL, USA. 13. Department of Pediatrics, Washington University, St Louis, MO, USA. 14. American Society of Hematology, Washington, DC, USA. 15. Eurocord, Hôpital Saint Louis, Université Paris Diderot, Paris, France; Monacord, Centre Scientifique de Monaco, Monaco, Monaco. 16. Department of Pediatrics, University of Minnesota, Minneapolis, MN, USA.
Abstract
BACKGROUND: Donors other than matched siblings and low-intensity conditioning regimens are increasingly used in haematopoietic stem cell transplantation. We aimed to compare the relative risk of donor type and conditioning regimen intensity on the transplantation outcomes of in patients with sickle cell disease. METHODS: For this retrospective cohort study, we collected data from 90 US centres reported to the Center for International Blood and Marrow Transplant Research. Eligible patients were younger than 50 years, had genetically confirmed sickle cell disease (Hb SS) or sickle beta thalassemia (Hb Sβ), and underwent allogeneic haematopoietic cell transplantation between Jan 15, 2008, and Dec 28, 2017. We considered transplants from donor-recipient pairs matched at the allele-level (HLA-A, HLA-B, HLA-C, and HLA-DRB1), including HLA-matched sibling donors, haploidentical related donors, matched unrelated donors, or mismatched unrelated donors. The main outcome was event-free survival. The effect of donor type, conditioning regimen intensity (myeloablative, non-myeloablative, and reduced-intensity regimens), age (≤12 or 13-49 years), sex, performance score, comorbidity index, recipient cytomegalovirus serostatus, graft type (bone marrow, peripheral blood, or umbilical cord blood), and transplantation period (2008-12 and 2013-17) on outcomes was studied using Cox regression models. FINDINGS: Of 996 patients with sickle cell disease and who underwent transplantation in 2008-17, 910 (91%) were included (558 [61%] patients had HLA-matched sibling donors, 137 [15%] haploidentical related donors, 111 [12%] matched unrelated donors, and 104 [11%] mismatched unrelated donors). The median follow-up was 36 months (IQR 18-60) after transplantation from HLA-matched siblings, 25 months (12-48) after transplantation from haploidentical related donors, 37 months (23-60) after transplantation from HLA-matched unrelated donors, and 47 months (24-72) after transplantation from mismatched unrelated donors. Event-free survival was worse in recipients aged 13 years or older than in those younger than 13 years (hazard ratio 1·74, 95% CI 1·24-2·45; p=0·0014) and in those who received a transplant from haploidentical related donors (5·30, 3·17-8·86; p<0·0001), matched unrelated donors (3·71, 2·39-5·75; p<0·0001), and mismatched unrelated donors (4·34, 2·58-7·32; p<0·0001) than in patients who received a transplant from matched siblings. There was no significant difference in event-free survival between recipients of transplants from non-sibling donors: haploidentical related donors (1·43, 0·81-2·50; p=0·21) or mismatched unrelated donors (1·17, 0·67-2·05; p=0·58) versus HLA-matched unrelated donors, or mismatched unrelated donors versus haploidentical related donors (1·22, 0·65-2·27; p=0·98). Event-free survival was also worse in patients conditioned with reduced-intensity regimens (1·97, 1·15-3·36; p=0·013) than in those conditioned with non-myeloablative regimens, but did not differ between those who received myeloablative compared with non-myeloablative regimens (1·57, 0·95-2·61; p=0·079). Interpretation Our data suggest that event-free survival is improved in patients with sickle cell disease who receive an allogenic transplantation at age 12 years or younger and those with an HLA-matched sibling donor. For patients without a matched sibling available for transplantation, our data do not favour one alternative donor type over another in this setting. FUNDING: National Institutes of Health and US Health Services Research Administration, Department of Health and Human Services.
BACKGROUND: Donors other than matched siblings and low-intensity conditioning regimens are increasingly used in haematopoietic stem cell transplantation. We aimed to compare the relative risk of donor type and conditioning regimen intensity on the transplantation outcomes of in patients with sickle cell disease. METHODS: For this retrospective cohort study, we collected data from 90 US centres reported to the Center for International Blood and Marrow Transplant Research. Eligible patients were younger than 50 years, had genetically confirmed sickle cell disease (Hb SS) or sickle beta thalassemia (Hb Sβ), and underwent allogeneic haematopoietic cell transplantation between Jan 15, 2008, and Dec 28, 2017. We considered transplants from donor-recipient pairs matched at the allele-level (HLA-A, HLA-B, HLA-C, and HLA-DRB1), including HLA-matched sibling donors, haploidentical related donors, matched unrelated donors, or mismatched unrelated donors. The main outcome was event-free survival. The effect of donor type, conditioning regimen intensity (myeloablative, non-myeloablative, and reduced-intensity regimens), age (≤12 or 13-49 years), sex, performance score, comorbidity index, recipient cytomegalovirus serostatus, graft type (bone marrow, peripheral blood, or umbilical cord blood), and transplantation period (2008-12 and 2013-17) on outcomes was studied using Cox regression models. FINDINGS: Of 996 patients with sickle cell disease and who underwent transplantation in 2008-17, 910 (91%) were included (558 [61%] patients had HLA-matched sibling donors, 137 [15%] haploidentical related donors, 111 [12%] matched unrelated donors, and 104 [11%] mismatched unrelated donors). The median follow-up was 36 months (IQR 18-60) after transplantation from HLA-matched siblings, 25 months (12-48) after transplantation from haploidentical related donors, 37 months (23-60) after transplantation from HLA-matched unrelated donors, and 47 months (24-72) after transplantation from mismatched unrelated donors. Event-free survival was worse in recipients aged 13 years or older than in those younger than 13 years (hazard ratio 1·74, 95% CI 1·24-2·45; p=0·0014) and in those who received a transplant from haploidentical related donors (5·30, 3·17-8·86; p<0·0001), matched unrelated donors (3·71, 2·39-5·75; p<0·0001), and mismatched unrelated donors (4·34, 2·58-7·32; p<0·0001) than in patients who received a transplant from matched siblings. There was no significant difference in event-free survival between recipients of transplants from non-sibling donors: haploidentical related donors (1·43, 0·81-2·50; p=0·21) or mismatched unrelated donors (1·17, 0·67-2·05; p=0·58) versus HLA-matched unrelated donors, or mismatched unrelated donors versus haploidentical related donors (1·22, 0·65-2·27; p=0·98). Event-free survival was also worse in patients conditioned with reduced-intensity regimens (1·97, 1·15-3·36; p=0·013) than in those conditioned with non-myeloablative regimens, but did not differ between those who received myeloablative compared with non-myeloablative regimens (1·57, 0·95-2·61; p=0·079). Interpretation Our data suggest that event-free survival is improved in patients with sickle cell disease who receive an allogenic transplantation at age 12 years or younger and those with an HLA-matched sibling donor. For patients without a matched sibling available for transplantation, our data do not favour one alternative donor type over another in this setting. FUNDING: National Institutes of Health and US Health Services Research Administration, Department of Health and Human Services.
Authors: Lisa V E Oostenbrink; Emma S Pool; Cornelia M Jol-van der Zijde; Anja M Jansen-Hoogendijk; Carly Vervat; Astrid G S van Halteren; Robbert G M Bredius; Frans J W Smiers; Maarten J D van Tol; Marco W Schilham; Arjan C Lankester; Alexander B Mohseny Journal: Bone Marrow Transplant Date: 2021-05-03 Impact factor: 5.483
Authors: Eliane Gluckman; Josu de la Fuente; Barbara Cappelli; Graziana M Scigliuolo; Fernanda Volt; Karina Tozatto-Maio; Vanderson Rocha; Mina Tommaso; Farah O'Boyle; Frans Smiers; Claudia Bettoni Da Cunha-Riehm; Elisabetta Calore; Sonia Bonanomi; Stelios Graphakos; Anna Paisiou; Michael H Albert; Annalisa Ruggeri; Marco Zecca; Arjan C Lankester; Selim Corbacioglu Journal: Bone Marrow Transplant Date: 2020-03-10 Impact factor: 5.483
Authors: Ruta Brazauskas; Graziana M Scigliuolo; Hai-Lin Wang; Barbara Cappelli; Annalisa Ruggeri; Courtney D Fitzhugh; Jane S Hankins; Julie Kanter; Joerg J Meerpohl; Julie A Panepinto; Damiano Rondelli; Shalini Shenoy; Mark C Walters; John E Wagner; John F Tisdale; Eliane Gluckman; Mary Eapen Journal: Blood Date: 2020-07-30 Impact factor: 22.113
Authors: Annalisa Lattanzi; Joab Camarena; Premanjali Lahiri; Helen Segal; Waracharee Srifa; Christopher A Vakulskas; Richard L Frock; Josefin Kenrick; Ciaran Lee; Narae Talbott; Jason Skowronski; M Kyle Cromer; Carsten T Charlesworth; Rasmus O Bak; Sruthi Mantri; Gang Bao; David DiGiusto; John Tisdale; J Fraser Wright; Neehar Bhatia; Maria Grazia Roncarolo; Daniel P Dever; Matthew H Porteus Journal: Sci Transl Med Date: 2021-06-16 Impact factor: 17.956