A Continuation Trial for Subjects With Systemic Lupus Erythematosus That Have Completed Protocol LBSL02

Phase 2

Completed

• Conditions: Systemic Lupus Erythematosus
• Interventions: Biological: Belimumab

• Registration Number: NCT00583362
• Lead Sponsor: Human Genome Sciences Inc., a GSK Company

Brief Summary

This is a continuation study to evaluate the long-term safety and efficacy of LymphoStat-B™ in subjects with SLE disease, that completed study LBSL02 and benefitted from treatment.

Detailed Description

The purpose of this continuation study to evaluate the long-term safety and efficacy of LymphoStat-B™ in subjects with Systemic Lupus Erythematosus (SLE), that completed study LBSL02 and benefitted from treatment.

Study Timeline

• Study Start: 2005-05-04
• Study First Submitted: 2007-12-20
• Study First Submitted QC: 2007-12-20
• Study First Posted: 2007-12-31
• Primary Completion: 2016-02-23
• Study Completion: 2016-02-23
• Results First Submitted: 2016-10-19
• Results First Submitted QC: 2017-03-20
• Results First Posted: 2017-04-28
• Status Verified: 2019-06
• Last Update Submitted: 2019-07-10
• Last Update Posted: 2019-07-23

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 298

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Belimumab 10 mg/kg	Belimumab	Belimumab 10 mg/kg IV over one hour every 28 days.

Primary Outcome Measures

Name	Time	Method
Change From Baseline in Erythrocytes at the Indicated Time Points	Baseline and approximately up to 13 years	Hematology parameters were assessed at Baseline, Week 8, 16, 24, 32, 40 and 48 during Year 1 to 12; Week 8, 16, 24, 32, and 40 during Year 13; Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). Change from Baseline in erythrocytes is summarized. The Baseline is defined as the Extension Year 1 Day 0 values for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. Change from Baseline is defined as the difference between the post-dose post-Baseline visit value and the Baseline value.
Change From Baseline in Hematocrit at the Indicated Time Points	Baseline and approximately up to 13 years	Hematology parameters were assessed at Baseline, Week 8, 16, 24, 32, 40 and 48 during Year 1 to 12; Week 8, 16, 24, 32, and 40 during Year 13; Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). Change from Baseline in hematocrit is summarized. The Baseline is defined as the Extension Year 1 Day 0 values for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. Change from Baseline is defined as the difference between the post-dose post-Baseline visit value and the Baseline value.
Number of Participants With the Indicated Type of Adverse Event (AEs) and Serious Adverse Event (SAEs)	Approximately up to 13 years	An AE is defined as any unfavorable or unintended sign, symptom, or disease that is temporally associated with the use of a study agent but is not necessarily caused by the study agent. This includes worsening (example \[eg\], increase in frequency or severity) of pre-existing conditions. An SAE is defined as an AE resulting in any of the following outcomes: death, is life threatening (that is, an immediate threat to life), inpatient hospitalization, prolongation of an existing hospitalization, persistent or significant disability/incapacity, congenital anomaly/birth defect, and is medically important.
SAE Rates by System Organ Class (SOC) During the Study	Approximately up to 13 years	SAE rates by SOC adjusting for participant-years on study drug anytime post Baseline are summarized, which included the follow up visits. Only treatmentemergent SAEs are summarized. The Baseline is defined as the last available value prior to belimumab start date, for participants treated with placebo in the parent study and last pretreatment value in the parent study for participants treated with belimumab in the parent study. The event rate of an SAE was calculated as the number of events per 100 participant years: Event Rate=100\* number of events divided by participant years. Participant years were calculated as sum across all participants (\[last visit of interval day minus first visit of interval day plus 1\] divided by 365).
Change From Baseline in Activated Partial Thromboplastin Time (APTT) and Prothrombin Time (PT) at the Indicated Time Points	Baseline and approximately up to 13 years	Hematology parameters were assessed at Baseline, Week 8, 16, 24, 40, and 48 during Year 1 to 8; Week 8, 16, 24, and 40 during Year 9; Week 24 and 40 during Year 10; Week 48 during Year 11; Week 32 during Year 13; Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). Change from Baseline in APTT and PT is summarized. The Baseline is defined as the Extension Year 1 Day 0 values for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. Change from Baseline is defined as the difference between the post-dose post-Baseline visit value and the Baseline value.
Change From Baseline in Hemoglobin at the Indicated Time Points	Baseline and approximately up to 13 years	Hematology parameters were assessed at Baseline, Week 8, 16, 24, 32, 40 and 48 during Year 1 to 12; Week 8, 16, 24, 32, and 40 during Year 13; Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). Change from Baseline in hemoglobin is summarized. The Baseline is defined as the Extension Year 1 Day 0 values for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. Change from Baseline is defined as the difference between the post-dose post-Baseline visit value and the Baseline value.
Change From Baseline in Blood Urea Nitrogen (BUN), Glucose, Calcium, Carbon Dioxide, Chloride, Magnesium, Phosphate, Potassium and Sodium at the Indicated Time Points	Baseline and approximately up to 13 years	Clinical chemistry parameters were assessed at Baseline, Week 8, 16, 24, 32, 40 and 48 during Year 1 to 12; Week 8, 16, 24, 32, and 40 during Year 13; Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). Change from Baseline in BUN, glucose, calcium, carbon dioxide, chloride, magnesium, phosphate, potassium and sodium is summarized. The Baseline is defined as the Extension Year 1 Day 0 values for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. Change from Baseline is defined as the difference between the post-dose post-Baseline visit value and the Baseline value.
Change From Baseline in BUN/Creatinine at the Indicated Time Points	Baseline and approximately up to 13 years	Clinical chemistry parameters were assessed at Baseline, Week 8, 16, 24, 32, 40 and 48 during Year 1 to 12; Week 8, 16, 24, 32, and 40 during Year 13; Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). Change from Baseline in BUN/creatinine is summarized. The Baseline is defined as the Extension Year 1 Day 0 values for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. Change from Baseline is defined as the difference between the post-dose post-Baseline visit value and the Baseline value.
Adverse Event (AE) Rates by System Organ Class (SOC) During the Study	Approximately up to 13 years	AE rates by SOC adjusting for participant-years on study drug anytime post Baseline are summarized, which included the follow up visits. Only treatmentemergent AEs are summarized. The Baseline is defined as the last available value prior to belimumab start date, for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. The event rate of an AE was calculated as the number of events per 100 participant years: Event Rate=100\* number of events divided by participant years. Participant years were calculated as sum across all participants (\[last visit of interval day minus first visit of interval day plus 1\] divided by 365).
Change From Baseline in Creatinine, Urate and Bilirubin at the Indicated Time Points	Baseline and approximately up to 13 years	Clinical chemistry parameters were assessed at Baseline, Week 8, 16, 24, 32, 40 and 48 during Year 1 to 12; Week 8, 16, 24, 32, and 40 during Year 13; Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). Change from Baseline in creatinine, urate, and bilirubin is summarized. The Baseline is defined as the Extension Year 1 Day 0 values for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. Change from Baseline is defined as the difference between the post-dose post- Baseline visit value and the Baseline value.
Change From Baseline in Basophils, Eosinophils, Lymphocytes, Monocytes, Neutrophils Segmented and Platelets at the Indicated Time Points	Baseline and approximately up to 13 years	Hematology parameters were assessed at Baseline, Week 8, 16, 24, 32, 40 and 48 during Year 1 to 12; Week 8, 16, 24, 32, and 40 during Year 13; Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). Change from Baseline in basophils, eosinophils, lymphocytes, monocytes, neutrophils segmented and platelets is summarized. The Baseline is defined as the Extension Year 1 Day 0 values for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. Change from Baseline is defined as the difference between the post-dose post-Baseline visit value and the Baseline value.
Change From Baseline in Alanine Aminotransferase (ALT), Alkaline Phosphatase (AP), Aspartate Aminotransferase (AST), Gamma Glutamyl Transferase (GGT) and Lactate Dehydrogenase (LD) at the Indicated Time Points	Baseline and approximately up to 13 years	Clinical chemistry parameters were assessed at Baseline, Week 8, 16, 24, 32, 40 and 48 during Year 1 to 12; Week 8, 16, 24, 32, and 40 during Year 13; Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). Change from Baseline in ALT, AP, AST, GGT and LD are summarized. Baseline is defined as the Extension Year 1 Day 0 values for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. Change from Baseline is defined as the difference between the post-dose post-Baseline visit value and the Baseline value.
Change From Baseline in Albumin and Protein at the Indicated Time Points	Baseline and approximately up to 13 years	Clinical chemistry parameters were assessed at Baseline, Week 8, 16, 24, 32, 40 and 48 during Year 1 to 12; Week 8, 16, 24, 32, and 40 during Year 13; Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). Change from Baseline in albumin and protein is summarized. The Baseline is defined as the Extension Year 1 Day 0 values for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. Change from Baseline is defined as the difference between the post-dose post-Baseline visit value and the Baseline value.

Secondary Outcome Measures

Name	Time	Method
Median Percent Change From Baseline in Immunoglobulin G at Indicated Time Points	Baseline and approximately up to 13 years	Serum immunoglobulin G values were assessed at Baseline, Week 8, 16, 24, 32, 40, and 48 during Year 1 to 12 and Week 8, 16, 24, 32, and 40 during Year 13, Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). Baseline is defined as the last available value prior to belimumab start date, for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. For Year 1, Baseline included Extension Year 1 Day 0 values for MITT participants treated with placebo in the parent study, and the last pre-treatment value in the parent study for MITT participants treated with belimumab in the parent study. Percent change from Baseline is defined as the percentage of the difference between the post-dose post-Baseline visit value and the Baseline value.
Percentage of Participants Achieving SLE Responder Index (SRI) Response at Indicated Time Points	Approximately up to 13 years	SRI response was assessed at Week 16, 32, and 48 during Year 1 to 12 and Week 16 and 32 during Year 13. Baseline is defined as the last available value prior to belimumab start date, for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. SRI response is defined as:\>=4 point reduction from the Baseline in safety of estrogen in lupus national assessment (SELENA) SLE disease activity index (SLEDAI) score and no worsening (increase of \<0.30 points from the Baseline) in Physician's Global Assessment (PGA), and no new British Isles Lupus Assessment Group (BILAG) A organ domain score or 2 new BILAG B organ domain scores compared with the Baseline at the time of assessment.
Observed Anti-double Stranded DNA Levels in Participants Positive at Baseline at Indicated Time Points	Approximately up to 13 years	Anti-double stranded DNA levels in participants positive at Baseline were assessed at Baseline, Week 16, 32, and 48 during Year 1 to 11, Week 16 and 32 during Year 13, Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). The Baseline is defined as the last available value prior to belimumab start date, for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. For Year 1, Baseline included Extension Year 1 Day 0 values for MITT participants treated with placebo in the parent study, and the last pre-treatment value in the parent study for MITT participants treated with belimumab in the parent study.
Median Percent Change From Baseline in Anti-double Stranded DNA in Participants Positive at Baseline at Indicated Time Points	Baseline and approximately up to 13 years	Anti-double stranded DNA levels for participants positive at Baseline were assessed at Baseline, Week 16, 32, and 48 during Year 1 to 11, Week 16 and 32 during Year 13, Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). The Baseline is defined as the last available value prior to belimumab start date, for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. For Year 1, Baseline included Extension Year 1 Day 0 values for MITT participants treated with placebo in the parent study, and the last pre-treatment value in the parent study for MITT participants treated with belimumab in the parent study. Percent change from Baseline is defined as the percentage of the difference between the post-dose post-Baseline visit value and the Baseline value.
Observed Complement C3 and C4 Levels in Participants Low at Baseline at Indicated Time Points	Approximately up to 13 years	Complement C3 and C4 levels were assessed in participants low at Baseline at Baseline, Week 16, 32, and 48 during Year 1 to 12, Week 16 and 32 during Year 13, and Exit visit. The Baseline is defined as the last available value prior to belimumab start date, for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. For Year 1, Baseline included Extension Year 1 Day 0 values for MITT participants treated with placebo in the parent study, and the last pre-treatment value in the parent study for MITT participants treated with belimumab in the parent study.
Median Percent Change From Baseline in Complement C3 and C4 Levels in Participants Low at Baseline at Indicated Time Points	Baseline and approximately up to 13 years	Complement C3 and C4 levels were assessed in participants low at Baseline at Baseline, Week 16, 32, and 48 during Year 1 to 12, Week 16 and 32 during Year 13, and Exit visit. The Baseline is defined as the last available value prior to belimumab start date, for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. For Year 1, Baseline included Extension Year 1 Day 0 values for MITT participants treated with placebo in the parent study, and the last pre-treatment value in the parent study for MITT participants treated with belimumab in the parent study. Percent change from Baseline is defined as the percentage of the difference between the post-dose post-Baseline visit value and the Baseline value.
Percentage of Participants With Daily Prednisone Dose Reduction at Indicated Time Points	Approximately up to 13 years	Daily prednisone dose reduction was assessed at Baseline, Week 8, 16, 24, 32, 40, and 48 during Year 1 to 12 and Week 8, 16, 24, 32, and 40 during Year 13. Percentage of participants with daily prednisone dose reduced to \<=7.5 mg/day from \>7.5 mg/kg at the Baseline are summarized. Baseline is defined as the last available value prior to belimumab start date, for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study.
Absolute Serum Immunoglobulin G Values at Indicated Time Points	Approximately up to 13 years	Serum immunoglobulin G values were assessed at Baseline, Week 8, 16, 24, 32, 40, and 48 during Year 1 to 12 and Week 8, 16, 24, 32, and 40 during Year 13, Exit visit and at follow-up (up to 8 weeks and 24 weeks post last infusion). Baseline is defined as the last available value prior to belimumab start date, for participants treated with placebo in the parent study and last pre-treatment value in the parent study for participants treated with belimumab in the parent study. For Year 1, Baseline included Extension Year 1 Day 0 values for MITT participants treated with placebo in the parent study, and the last pre-treatment value in the parent study for MITT participants treated with belimumab in the parent study.

Trial Locations

Locations (1)

GSK Investigational Site; 🇨🇦 Montreal, Quebec, Canada