Transforming the clinical outcome in CRIM-negative infantile Pompe disease identified via newborn screening: the benefits of early treatment with enzyme replacement therapy and immune tolerance induction.

Journal Article (Journal Article)

PURPOSE: To assess the magnitude of benefit to early treatment initiation, enabled by newborn screening or prenatal diagnosis, in patients with cross-reactive immunological material (CRIM)-negative infantile Pompe disease (IPD), treated with enzyme replacement therapy (ERT) and prophylactic immune tolerance induction (ITI) with rituximab, methotrexate, and intravenous immunoglobulin (IVIG). METHODS: A total of 41 CRIM-negative IPD patients were evaluated. Among patients who were treated with ERT + ITI (n = 30), those who were invasive ventilator-free at baseline and had ≥6 months of follow-up were stratified based on age at treatment initiation: (1) early (≤4 weeks), (2) intermediate (>4 and ≤15 weeks), and (3) late (>15 weeks). A historical cohort of 11 CRIM-negative patients with IPD treated with ERT monotherapy served as an additional comparator group. RESULTS: Twenty patients were included; five, seven, and eight in early, intermediate, and late treatment groups, respectively. Genotypes were similar across the three groups. Early-treated patients showed significant improvements in left ventricular mass index, motor and pulmonary outcomes, as well as biomarkers creatine kinase and urinary glucose tetrasaccharide, compared with those treated later. CONCLUSION: Our preliminary data suggest that early treatment with ERT + ITI can transform the long-term CRIM-negative IPD phenotype, which represents the most severe end of the Pompe disease spectrum.

Full Text

Duke Authors

Cited Authors

  • Li, C; Desai, AK; Gupta, P; Dempsey, K; Bhambhani, V; Hopkin, RJ; Ficicioglu, C; Tanpaiboon, P; Craigen, WJ; Rosenberg, AS; Kishnani, PS

Published Date

  • May 1, 2021

Published In

Volume / Issue

  • 23 / 5

Start / End Page

  • 845 - 855

PubMed ID

  • 33495531

Pubmed Central ID

  • PMC8107133

Electronic International Standard Serial Number (EISSN)

  • 1530-0366

Digital Object Identifier (DOI)

  • 10.1038/s41436-020-01080-y

Language

  • eng

Conference Location

  • United States