Successful immune tolerance induction to enzyme replacement therapy in CRIM-negative infantile Pompe disease

Yoav H. Messinger*, Nancy J. Mendelsohn, William Rhead, David Dimmock, Eli Hershkovitz, Michael Champion, Simon A. Jones, Rebecca Olson, Amy White, Cara Wells, Deeksha Bali, Laura E. Case, Sarah P. Young, Amy S. Rosenberg, Priya S. Kishnani

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    182 Citations (Scopus)

    Abstract

    Purpose: Infantile Pompe disease resulting from a deficiency of lysosomal acid alpha-glucosidase (GAA) requires enzyme replacement therapy (ERT) with recombinant human GAA (rhGAA). Cross-reactive immunologic material negative (CRIM-negative) Pompe patients develop high-titer antibody to the rhGAA and do poorly. We describe successful tolerance induction in CRIM-negative patients.

    Methods: Two CRIM-negative patients with preexisting anti-GAA antibodies were treated therapeutically with rituximab, methotrexate, and gammaglobulins. Two additional CRIM-negative patients were treated prophylactically with a short course of rituximab and methotrexate, in parallel with initiating rhGAA.

    Results: In both patients treated therapeutically, anti-rhGAA was eliminated after 3 and 19 months. All four patients are immune tolerant to rhGAA, off immune therapy, showing B-cell recovery while continuing to receive ERT at ages 36 and 56 months (therapeutic) and 18 and 35 months (prophylactic). All patients show clinical response to ERT, in stark contrast to the rapid deterioration of their nontolerized CRIM-negative counterparts.

    Conclusion: The combination of rituximab with methotrexate +/- intravenous gammaglobulins (IVIG) is an option for tolerance induction of CRIM-negative Pompe to ERT when instituted in the naive setting or following antibody development. It should be considered in other conditions in which antibody response to the therapeutic protein elicits robust antibody response that interferes with product efficacy.

    Original languageEnglish
    Pages (from-to)135-142
    Number of pages8
    JournalGENETICS IN MEDICINE
    Volume14
    Issue number1
    DOIs
    Publication statusPublished - Jan 2012

    Keywords

    • immune tolerance
    • methotrexate
    • Pompe disease
    • rituximab
    • ACID ALPHA-GLUCOSIDASE
    • SEVERE HEMOPHILIA-A
    • NEUTRALIZING ANTIBODIES
    • MUCOPOLYSACCHARIDOSIS-I
    • RITUXIMAB
    • TERM
    • INHIBITORS
    • BOY

    Fingerprint

    Dive into the research topics of 'Successful immune tolerance induction to enzyme replacement therapy in CRIM-negative infantile Pompe disease'. Together they form a unique fingerprint.

    Cite this