Secukinumab Immunogenicity over 52 Weeks in Patients with Psoriatic Arthritis and Ankylosing Spondylitis

Atul Deodhar, Dafna D. Gladman, Iain B. McInnes, Sebastian Spindeldreher, Ruvie Martin, Luminita Pricop, Brian Porter, Jorge Safi, Abhijit Shete, Gerard Bruin

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

OBJECTIVE: Secukinumab, a fully human antiinterleukin 17A monoclonal antibody, is efficacious for the treatment of psoriatic arthritis (PsA) and ankylosing spondylitis (AS). This study examined the immunogenicity of secukinumab in patients with PsA and AS exposed to secukinumab for up to 52 weeks. METHODS: Antibody bridging assays were used to assess the immunogenicity of secukinumab in patients with PsA [FUTURE 1-3 studies, and AS (MEASURE 1-4 studies)]. Evaluations were at baseline and at weeks 16 (AS only), 24, and 52. Treatment-emergent antidrug antibodies (TE-ADA) were defined as a positive ADA signal in ≥ 1 posttreatment sample in patients negative at baseline. Positive samples were analyzed for drug-neutralizing potential, and effect of TE-ADA on secukinumab pharmacokinetics, immunogenicity-related adverse events (AE), and efficacy through Week 52 were assessed. RESULTS: Of 1414 treated PsA and 1164 treated AS patients with samples available for immunogenicity evaluation, 5 (0.35%) and 8 (0.69%), respectively, developed TE-ADA. All but 1 PsA patient were biologic-naive; two of the 5 PsA and one of the 8 AS patients received concomitant methotrexate, and two of the 8 AS patients received concomitant sulfasalazine. Associations between TE-ADA and secukinumab dose, frequency, or administration mode were not observed. Other than one PsA patient, all TE-ADA were non-neutralizing. No TE-ADA were associated with any AE. All TE-ADA were associated with normal secukinumab pharmacokinetics and none were associated with loss of secukinumab efficacy. CONCLUSION: Secukinumab treatment was associated with a low (< 1%) incidence of immunogenicity in patients with PsA or AS. (clinicaltrials.gov: NCT01392326; NCT01752634; NCT01989468; NCT01358175; NCT01649375; NCT02008916; NCT02159053).

Original languageEnglish (US)
Pages (from-to)539-547
Number of pages9
JournalThe Journal of rheumatology
Volume47
Issue number4
DOIs
StatePublished - Apr 1 2020

Keywords

  • ANKYLOSING SPONDYLITIS
  • IMMUNOGENICITY
  • INTERLEUKIN-17A
  • MONOCLONAL ANTIBODY
  • PSORIATIC ARTHRITIS
  • SECUKINUMAB

ASJC Scopus subject areas

  • Rheumatology
  • Immunology and Allergy
  • Immunology

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    Deodhar, A., Gladman, D. D., McInnes, I. B., Spindeldreher, S., Martin, R., Pricop, L., Porter, B., Safi, J., Shete, A., & Bruin, G. (2020). Secukinumab Immunogenicity over 52 Weeks in Patients with Psoriatic Arthritis and Ankylosing Spondylitis. The Journal of rheumatology, 47(4), 539-547. https://doi.org/10.3899/jrheum.190116