Biologic activity and safety of belimumab, a neutralizing anti-B-lymphocyte stimulator (BLyS) monoclonal antibody: a phase I trial in patients with systemic lupus erythematosus
2008

Study of Belimumab in Patients with Systemic Lupus Erythematosus

Sample size: 70 publication 10 minutes Evidence: moderate

Author Information

Author(s): Richard Furie, William Stohl, Ellen M Ginzler, Michael Becker, Nilamadhab Mishra, Winn Chatham, Joan T Merrill, Arthur Weinstein, W Joseph McCune, John Zhong, Wendy Cai, William Freimuth, the Belimumab Study Group

Hypothesis

Belimumab will demonstrate safety and biologic activity in patients with systemic lupus erythematosus.

Conclusion

Belimumab was well tolerated and reduced peripheral B-cell levels in SLE patients.

Supporting Evidence

  • Belimumab reduced CD20+ B cells significantly compared to placebo.
  • Adverse events were similar between belimumab and placebo groups.
  • Pharmacokinetics of belimumab were linear across the tested dose range.

Takeaway

This study tested a new medicine called belimumab to see if it helps people with lupus by lowering certain bad cells in their blood.

Methodology

A phase I, double-blind, randomized study with 70 patients treated with either belimumab or placebo.

Potential Biases

Potential bias due to the small number of patients and the nature of the study design.

Limitations

The study had a small sample size and a short duration, which may limit the generalizability of the findings.

Participant Demographics

91% female, median age 38.5 years, diverse racial background with 50% white and 47% African American.

Statistical Information

P-Value

0.0042, 0.0036, 0.0305

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/ar2506

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