Effectiveness of Belimumab Treatment in a Subpopulation of Systemic Lupus Erythematosus (SLE) Patients: a Pooled Analysis of BLISS-52 and BLISS-76

Summary

This pooled analysis will assess data from the Phase 3 belimumab registration studies BLISS-52 (aka BEL110752) and BLISS-76 (aka BEL110751). The analysis was pre-planned and agreed prior to the unblinding of either study. The primary objective is to evaluate the impact of belimumab treatment on a more severe subpopulation of systemic lupus erythematosus (SLE) subjects from BLISS-52 and BLISS-76 to aid physicians and payers in decision making. Subjects are from the modified Intent-to-Treat (ITT) population defined as randomized subjects who received at least 1 dose of study agent. This more severe subpopulation will have renal, neurological, haematological, or cardiovascular/respiratory organ domain involvement (as defined by a British Isles Lupus Assessment Group (BILAG) domain score of A, B or C in at least one of the domains) at baseline AND anti-double-stranded deoxyribonucleic acid (anti-dsDNA) positive (≥ 30 IU/mL) at baseline OR low C3 and/or C4 complement relative to the normal range at baseline.

Conditions

• Systemic Lupus Erythematosus

Interventions

DRUG

Belimumab 1 mg/kg

Subjects received belimumab 1 mg/kg in addition to their ongoing stable systemic lupus erythematosus (SLE) treatment regimen. Belimumab was administered intravenously at 0, 2, 4 weeks and every 4 weeks thereafter. The ongoing SLE treatment regimen was to have been stable for at least 30 days prior to Day 0, which consisted of any of the following (alone or in combination): prednisone or equivalent (from 0 to 40 mg/day when used in combination with other SLE treatment or from 7.5 to 40 mg/day alone), anti-malarials, non-steroidal anti inflammatory drugs (NSAIDs), or any immunosuppressive therapy (ie, methotrexate, azathioprine, leflunomide, or mycophenolate calcineurin inhibitors, sirolimus, oral cyclophosphamide, 6-mercaptopurine, or thalidomide).

DRUG

Belimumab 10 mg/kg

Subjects received belimumab 10 mg/kg in addition to their ongoing stable SLE treatment regimen. Belimumab was administered intravenously at 0, 2, 4 weeks and every 4 weeks thereafter. The ongoing SLE treatment regimen was to have been stable for at least 30 days prior to Day 0, which consisted of any of the following (alone or in combination): prednisone or equivalent (from 0 to 40 mg/day when used in combination with other SLE treatment or from 7.5 to 40 mg/day alone), anti-malarials, NSAIDs, or any immunosuppressive therapy (ie, methotrexate, azathioprine, leflunomide, or mycophenolate calcineurin inhibitors, sirolimus, oral cyclophosphamide, 6-mercaptopurine, or thalidomide).

DRUG

Placebo

Subjects received placebo in addition to their ongoing stable SLE treatment regimen. Placebo was administered intravenously at 0, 2, 4 weeks and every 4 weeks thereafter. The ongoing SLE treatment regimen was to have been stable for at least 30 days prior to Day 0, which consisted of any of the following (alone or in combination): prednisone or equivalent (from 0 to 40 mg/day when used in combination with other SLE treatment or from 7.5 to 40 mg/day alone), anti-malarials, NSAIDs, or any immunosuppressive therapy (ie, methotrexate, azathioprine, leflunomide, or mycophenolate calcineurin inhibitors, sirolimus, oral cyclophosphamide, 6-mercaptopurine, or thalidomide).

Sponsors & Collaborators

• Human Genome Sciences Inc.

  collaborator INDUSTRY

• GlaxoSmithKline

  lead INDUSTRY

Principal Investigators

• GSK Clinical Trials · GlaxoSmithKline

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2009-07-31

Primary Completion

2010-11-30

Completion

2010-11-30