Long-term outcome of LRBA deficiency in 76 patients after various treatment modalities as evaluated by the immune deficiency and dysregulation activity (IDDA) score

Inborn Errors, Clinical, and Registry Working Parties of the European Society for Blood and Marrow Transplantation and the European Society for Immunodeficiencies

Research output: Contribution to journalArticlepeer-review

116 Scopus citations

Abstract

Background: Recent findings strongly support hematopoietic stem cell transplantation (HSCT) in patients with severe presentation of LPS-responsive beige-like anchor protein (LRBA) deficiency, but long-term follow-up and survival data beyond previous patient reports or meta-reviews are scarce for those patients who do not receive a transplant. Objective: This international retrospective study was conducted to elucidate the longitudinal clinical course of patients with LRBA deficiency who do and do not receive a transplant. Method: We assessed disease burden and treatment responses with a specially developed immune deficiency and dysregulation activity score, reflecting the sum and severity of organ involvement and infections, days of hospitalization, supportive care requirements, and performance indices. Results: Of 76 patients with LRBA deficiency from 29 centers (median follow-up, 10 years; range, 1-52), 24 underwent HSCT from 2005 to 2019. The overall survival rate after HSCT (median follow-up, 20 months) was 70.8% (17 of 24 patients); all deaths were due to nonspecific, early, transplant-related mortality. Currently, 82.7% of patients who did not receive a transplant (43 of 52; age range, 3-69 years) are alive. Of 17 HSCT survivors, 7 are in complete remission and 5 are in good partial remission without treatment (together, 12 of 17 [70.6%]). In contrast, only 5 of 43 patients who did not receive a transplant (11.6%) are without immunosuppression. Immune deficiency and dysregulation activity scores were significantly lower in patients who survived HSCT than in those receiving conventional treatment (P = .005) or in patients who received abatacept or sirolimus as compared with other therapies, and in patients with residual LRBA expression. Higher disease burden, longer duration before HSCT, and lung involvement were associated with poor outcome. Conclusion: The lifelong disease activity, implying a need for immunosuppression and risk of malignancy, must be weighed against the risks of HSCT.

Original languageEnglish (US)
Pages (from-to)1452-1463
Number of pages12
JournalJournal of Allergy and Clinical Immunology
Volume145
Issue number5
DOIs
StatePublished - May 2020

Funding

M.G. Seidel and the Research Unit for Pediatric Hematology and Immunology are supported in part by the Styrian Children's Cancer Aid Foundation. M. Avbeli Stefanija was supported by the Slovenian Research Agency (grant P3-0343). H. Abolhassani was supported by the Jonas Söderquist Foundation. S. Baris was supported by the Scientific and Technological Research Council of Turkey for the diagnosis of patients with LRBA deficiency (grants 217S847 and 318S202). B. Grimbacher receives support through the Deutsche Forschungsgemeinschaft under Germany's Excellence Strategy (CIBSS-EXC-2189-Project ID 390939984 and RESIST-EXC 2155- Project ID 39087428); through the E-Rare program of the European Union, managed by the Deutsche Forschungsgemeinschaft (grant GR1617/14-1/iPAD); and through the Netzwerke Seltener Erkrankungen of the German Ministry of Education and Research (grant GAIN_ 01GM1910A). M.R.J. Seppänen was supported by the Finnish Foundation for Pediatric Research and Pediatric Research Center, HUS Helsinki University Hospital. I. Meyts is a member of the ERN-RITA network (project identification number 739543). B. Shadur is supported by a Graduate Research Training Scholarship of the Australian government and by Hadassah Australia. M.G. Seidel and the Research Unit for Pediatric Hematology and Immunology are supported in part by the Styrian Children’s Cancer Aid Foundation . M. Avbeli Stefanija was supported by the Slovenian Research Agency (grant P3-0343 ). H. Abolhassani was supported by the Jonas Söderquist Foundation . S. Baris was supported by the Scientific and Technological Research Council of Turkey for the diagnosis of patients with LRBA deficiency (grants 217S847 and 318S202 ). B. Grimbacher receives support through the Deutsche Forschungsgemeinschaft under Germany's Excellence Strategy (CIBSS-EXC-2189-Project ID 390939984 and RESIST-EXC 2155- Project ID 39087428 ); through the E-Rare program of the European Union, managed by the Deutsche Forschungsgemeinschaft (grant GR1617/14-1/iPAD ); and through the Netzwerke Seltener Erkrankungen of the German Ministry of Education and Research (grant GAIN_ 01GM1910A ). M.R.J. Seppänen was supported by the Finnish Foundation for Pediatric Research and Pediatric Research Center , HUS Helsinki University Hospital . I. Meyts is a member of the ERN-RITA network (project identification number 739543 ). B. Shadur is supported by a Graduate Research Training Scholarship of the Australian government and by Hadassah Australia.

Keywords

  • CTLA4
  • Inborn error of immunity
  • abatacept
  • clinical score
  • combined immunodeficiency
  • hematopoietic stem cell transplantation
  • immune dysregulation
  • performance scale
  • primary immunodeficiency disorder
  • sirolimus

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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