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Clinical response to adalimumab: relationship to anti-adalimumab antibodies and serum adalimumab concentrations in rheumatoid arthritis

Annals of the Rheumatic Diseases, ISSN: 0003-4967, Vol: 66, Issue: 7, Page: 921-926
2007
  • 533
    Citations
  • 0
    Usage
  • 256
    Captures
  • 0
    Mentions
  • 14
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    533
    • Citation Indexes
      524
    • Policy Citations
      4
      • Policy Citation
        4
    • Clinical Citations
      3
      • PubMed Guidelines
        3
    • Patent Family Citations
      2
      • Patent Families
        2
  • Captures
    256
  • Social Media
    14
    • Shares, Likes & Comments
      14
      • Facebook
        14

Article Description

A substantial proportion of patients with rheumatoid arthritis (RA) do not respond, or lose initial response, to adalimumab treatment. One explanation for non-response is that patients develop anti-adalimumab antibodies. To evaluate the incidence of formation of antibody against adalimumab and the association with serum adalimumab concentrations and clinical response. In a cohort of 121 consecutive patients with RA treated with adalimumab, serum adalimumab concentrations and antibodies against adalimumab were measured together with clinical response variables before and up to 28 weeks after the start of treatment. Anti-adalimumab antibodies were detected in 21 patients (17%) during 28 weeks of treatment. EULAR non-responders had antibodies significantly more often than good responders (34% vs 5%; p = 0.032). Patients with antibodies showed less improvement in disease activity (mean (SD) delta DAS28 0.65 (1.35)) than patients without antibodies (mean delta DAS28 1.70 (1.35)) (p = 0.001). Patients with antibodies during follow-up had lower serum adalimumab concentrations at 28 weeks than patients without antibodies (median 1.2 mg/l, range 0.0–5.6 vs median 11.0 mg/l, range 2.0–33.0, respectively; p<0.001). Good responders had higher serum adalimumab concentrations than moderate responders (p = 0.021) and non-responders (p = 0.001). Concomitant methotrexate use was lower in the group with anti-adalimumab antibodies (52%) than in the group without antibodies (84%) (p = 0.003). Serum antibodies against adalimumab are associated with lower serum adalimumab concentrations and non-response to adalimumab treatment.

Bibliographic Details

Bartelds, Geertje M; Wijbrandts, Carla A; Nurmohamed, Michael T; Stapel, Steven; Lems, Willem F; Aarden, Lucien; Dijkmans, Ben A C; Tak, Paul Peter; Wolbink, Gerrit Jan

Elsevier BV

Medicine; Immunology and Microbiology; Biochemistry, Genetics and Molecular Biology

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