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Publication Detail
Efficacy and safety of epratuzumab in patients with moderate/severe flaring systemic lupus erythematosus: results from two randomized, double-blind, placebo-controlled, multicentre studies (ALLEVIATE) and follow-up.
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Wallace DJ, Gordon C, Strand V, Hobbs K, Petri M, Kalunian K, Houssiau F, Tak PP, Isenberg DA, Kelley L, Kilgallen B, Barry AN, Wegener WA, Goldenberg DM
  • Publication date:
  • Pagination:
    1313, 1322
  • Journal:
    Rheumatology (Oxford)
  • Volume:
  • Issue:
  • Status:
  • Country:
  • PII:
  • Language:
  • Keywords:
    ALLEVIATE, BILAG, CD22, SLE, clinical trial, epratuzumab, lupus, monoclonal antibody, Adolescent, Adult, Antibodies, Monoclonal, Humanized, Dose-Response Relationship, Drug, Double-Blind Method, Female, Follow-Up Studies, Humans, Lupus Erythematosus, Systemic, Male, Middle Aged, Severity of Illness Index, Treatment Outcome, Young Adult
OBJECTIVE: To evaluate epratuzumab treatment in patients with moderately-to-severely active SLE in two international, randomized, controlled trials (ALLEVIATE-1 and -2) and an open-label extension study (SL0006). METHODS: Ninety ALLEVIATE patients (43% BILAG A, median BILAG score 12.0) received standard of care plus 10 total doses of placebo (n = 37) or 360 mg/m(2) (n = 42) or 720 mg/m(2) (n = 11) epratuzumab, administered across 12-week cycles for up to 48 weeks, with BILAG assessments every 4 weeks. Patients were followed for ≥ 6 months and their data combined for analysis. The primary endpoint was BILAG response at week 12 (all BILAG A scores reduced to B/C/D and B scores to C/D, no new A and <2 new B scores). Twenty-nine patients continued in SL0006, receiving 12-week cycles of 360 mg/m(2) epratuzumab; this interim analysis was performed at median 120 weeks (range 13-184) of exposure. RESULTS: Both ALLEVIATE trials were discontinued prematurely because of interruption in drug supply. Exploratory pooled analyses found that responses at week 12 were 15/34 (44.1%) and 2/10 (20.0%) for epratuzumab 360 and 720 mg/m(2), respectively, vs 9/30 (30.0%) for placebo. Total BILAG scores were lower in both epratuzumab arms vs placebo at week 48 and at all but two time points. The incidence of adverse events was similar between groups. In SL0006, median total BILAG score was 8.0 (n = 29) at study entry and 7.0 (n = 19) at week 100, with no additional safety signals. CONCLUSION: This initial efficacy and safety profile of epratuzumab supports its continued development for SLE treatment.
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