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Safety and Effectiveness of BENLYSTA (Belimumab) in Systemic Lupus Erythematosus (SLE) Registry

A 5-Year Prospective Observational Registry to Assess Adverse Events of Interest and Effectiveness in Adults With Active, Autoantibody-Positive Systemic Lupus Erythematosus Treated With or Without BENLYSTA™ (Belimumab)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01729455
Acronym
SABLE
Enrollment
3138
Registered
2012-11-20
Start date
2013-02-21
Completion date
2025-02-28
Last updated
2026-03-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Systemic Lupus Erythematosus

Keywords

Belimumab, BENLYSTA, Systemic Lupus Erythematosus, Autoimmune Disease, Autoantibodies

Brief summary

The purpose of this prospective, observational cohort study is to evaluate the incidence of adverse events of special interest (AESI) and effectiveness in participants with active, autoantibody-positive SLE treated with and without BENLYSTA (belimumab). Participants will be enrolled into 1 of 2 cohorts: (1) BENLYSTA cohort: participants receiving or initiating BENLYSTA plus standard of care (SOC) at Baseline; (2) comparison cohort: participants not receiving BENLYSTA but receiving SOC at Baseline. After enrollment, changes in lupus medications, including starting or stopping BENLYSTA, are at the discretion of the physician, and all participants will continue to be followed regardless of changes in their lupus medicines until study completion. All participants will be assessed for AESI including serious infections, opportunistic infections and other infections of interest, malignancies, selected serious psychiatric events and mortality. Data will be collected at enrollment and at 6 month intervals for 5 years. BENLYSTA is a registered trademark of GlaxoSmithKline (GSK) group of companies.

Interventions

BIOLOGICALBenlysta

As prescribed. Belimumab is a recombinant, human, IgG1λ monoclonal antibody for the treatment of systemic lupus erythematosus.

OTHERStandard of Care (SoC) Therapy

As prescribed. At baseline, SoC therapy must have included an immunosuppressant. During the registry, SoC therapy could include any of the following (alone or in combination): immunosuppressants, corticosteroids, antimalarials, other biologics, investigational agents for SLE, as clinically indicated.

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Males or females age 18 years or older. * Have a clinical diagnosis of active SLE. * Current or history of autoantibody-positive SLE. * Must be treated with SLE therapy including BENLYSTA and/or immunosuppressants (for example, azathioprine, methotrexate, cyclophosphamide, mycophenolate, and biologics). * Have the ability to understand the requirements of the study, provide written informed consent, including consent for the use and disclosure of research-related health information, and comply with the study data collection procedures.

Exclusion criteria

* Treatment with an investigational drug within one year of enrollment. Investigational drug applies to any drug not approved for sale in the country it is being used. * Currently enrolled in a placebo-controlled BENLYSTA (belimumab) clinical trial or a continuation protocol where belimumab is used as an investigational agent. * Participants who have a history of BENLYSTA exposure, but are not currently receiving BENLYSTA. * Participants only receiving an anti-malarial for SLE. * Participants only receiving steroids for SLE.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Adverse Events of Special Interest (AESI) Using Initial Exposure Intent-to-Treat (ITT) StrategyUp to 63 MonthsAn adverse event (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. AESIs included mortality, malignancies (excluding non-melanoma skin cancers \[NMSC\]), serious infections, opportunistic infections and other infections of interest, NMSC, and selected serious psychiatric events. Initial exposure ITT strategy assigned exposure status of participants based on SLE medication (Benlysta or Non-Benlysta) at enrollment (Day 0). This exposure strategy analyzed all accrued AESI data during the whole follow-up period irrespective of treatment switching from Benlysta to Non-Benlysta or vice-versa.
Incidence Rate of AESI Up to 12 Months Using As-Exposed - Time Varying StrategyUp to 12 MonthsAn 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. AESIs including mortality, malignancies (excluding NMSC), serious infections, opportunistic infections and other infections of interest, NMSC, and selected serious psychiatric events were summarized. As-exposed (time varying) exposure strategy dynamically assigned participants' exposure group based on Benlysta/Non-Benlysta use at time of event, during study follow-up. Hence, a participant's exposure group could change over time depending on the SLE medication in use at specific time during study follow-up. For Benlysta, a 14-week risk window was applied wherein exposure ended 14 weeks after Benlysta stopped. Incidence rate is calculated as: Number of first events divided by (/) Total participant-years at risk of event expressed per 100 participant-years.
Incidence Rate of AESI Up to 24 Months Using As-Exposed - Time Varying StrategyUp to 24 MonthsAn 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. AESIs including mortality, malignancies (excluding NMSC), serious infections, opportunistic infections and other infections of interest, NMSC, and selected serious psychiatric events were summarized. As-exposed (time varying) exposure strategy dynamically assigned participants' exposure group based on Benlysta/Non-Benlysta use at time of event, during study follow-up. Hence, a participant's exposure group could change over time depending on the SLE medication in use at specific time during study follow-up. For Benlysta, a 14-week risk window was applied wherein exposure ended 14 weeks after Benlysta stopped. Incidence rate is calculated as: Number of first events / Total participant-years at risk of event expressed per 100 participant-years.
Incidence Rate of AESI Up to 36 Months Using As-Exposed - Time Varying StrategyUp to 36 MonthsAn 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. AESIs including mortality, malignancies (excluding NMSC), serious infections, opportunistic infections and other infections of interest, NMSC, and selected serious psychiatric events were summarized. As-exposed (time varying) exposure strategy dynamically assigned participants' exposure group based on Benlysta/Non-Benlysta use at time of event, during study follow-up. Hence, a participant's exposure group could change over time depending on the SLE medication in use at specific time during study follow-up. For Benlysta, a 14-week risk window was applied wherein exposure ended 14 weeks after Benlysta stopped. Incidence rate is calculated as: Number of first events / Total participant-years at risk of event expressed per 100 participant-years.
Incidence Rate of AESI Up to 48 Months Using As-Exposed - Time Varying StrategyUp to 48 MonthsAn 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. AESIs including mortality, malignancies (excluding NMSC), serious infections, opportunistic infections and other infections of interest, NMSC, and selected serious psychiatric events were summarized. As-exposed (time varying) exposure strategy dynamically assigned participants' exposure group based on Benlysta/Non-Benlysta use at time of event, during study follow-up. Hence, a participant's exposure group could change over time depending on the SLE medication in use at specific time during study follow-up. For Benlysta, a 14-week risk window was applied wherein exposure ended 14 weeks after Benlysta stopped. Incidence rate is calculated as: Number of first events / Total participant-years at risk of event expressed per 100 participant-years.
Incidence Rate of AESI Up to 63 Months Using As-Exposed - Time Varying StrategyUp to 63 MonthsAn 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. AESIs including mortality, malignancies (excluding NMSC), serious infections, opportunistic infections and other infections of interest, NMSC, and selected serious psychiatric events were summarized. As-exposed (time varying) exposure strategy dynamically assigned participants' exposure group based on Benlysta/Non-Benlysta use at time of event, during study follow-up. Hence, a participant's exposure group could change over time depending on the SLE medication in use at specific time during study follow-up. For Benlysta, a 14-week risk window was applied wherein exposure ended 14 weeks after Benlysta stopped. Incidence rate is calculated as: Number of first events / Total participant-years at risk of event expressed per 100 participant-years.
Event Rate of AESI Up to 12 Months Using As-Exposed - Time Varying StrategyUp to 12 MonthsAn AE is any unfavorable or unintended sign, symptom, or disease that is temporally associated with use of study agent but is not necessarily caused by study agent. AESIs including malignancies (excluding NMSC), serious infections, opportunistic infections and other infections of interest, NMSC, and selected serious psychiatric events were summarized. As event rate was computed for potentially recurrent events, no event rate was computed for mortality. As-exposed (time varying) exposure strategy dynamically assigned participants' exposure group based on Benlysta/Non-Benlysta use at time of event, during study follow-up. So, a participant's exposure group could change over time depending on SLE medication in use at specific time during study follow-up. For Benlysta, 14-week risk window was applied wherein exposure ended 14 weeks after Benlysta stopped. Event rate is calculated as: Number of all events / Total participant-years at risk of event expressed per 100 participant-years.
Event Rate of AESI Up to 24 Months Using As-Exposed - Time Varying StrategyUp to 24 MonthsAn AE is any unfavorable or unintended sign, symptom, or disease that is temporally associated with use of study agent but is not necessarily caused by study agent. AESIs including malignancies (excluding NMSC), serious infections, opportunistic infections and other infections of interest, NMSC, and selected serious psychiatric events were summarized. As event rate was computed for potentially recurrent events, no event rate was computed for mortality. As-exposed (time varying) exposure strategy dynamically assigned participants' exposure group based on Benlysta/Non-Benlysta use at time of event, during study follow-up. So, a participant's exposure group could change over time depending on SLE medication in use at specific time during study follow-up. For Benlysta, 14-week risk window was applied wherein exposure ended 14 weeks after Benlysta stopped. Event rate is calculated as: Number of all events / Total participant-years at risk of event expressed per 100 participant-years.
Event Rate of AESI Up to 36 Months Using As-Exposed - Time Varying StrategyUp to 36 MonthsAn AE is any unfavorable or unintended sign, symptom, or disease that is temporally associated with use of study agent but is not necessarily caused by study agent. AESIs including malignancies (excluding NMSC), serious infections, opportunistic infections and other infections of interest, NMSC, and selected serious psychiatric events were summarized. As event rate was computed for potentially recurrent events, no event rate was computed for mortality. As-exposed (time varying) exposure strategy dynamically assigned participants' exposure group based on Benlysta/Non-Benlysta use at time of event, during study follow-up. So, a participant's exposure group could change over time depending on SLE medication in use at specific time during study follow-up. For Benlysta, 14-week risk window was applied wherein exposure ended 14 weeks after Benlysta stopped. Event rate is calculated as: Number of all events / Total participant-years at risk of event expressed per 100 participant-years.
Event Rate of AESI Up to 48 Months Using As-Exposed - Time Varying StrategyUp to 48 MonthsAn AE is any unfavorable or unintended sign, symptom, or disease that is temporally associated with use of study agent but is not necessarily caused by study agent. AESIs including malignancies (excluding NMSC), serious infections, opportunistic infections and other infections of interest, NMSC, and selected serious psychiatric events were summarized. As event rate was computed for potentially recurrent events, no event rate was computed for mortality. As-exposed (time varying) exposure strategy dynamically assigned participants' exposure group based on Benlysta/Non-Benlysta use at time of event, during study follow-up. So, a participant's exposure group could change over time depending on SLE medication in use at specific time during study follow-up. For Benlysta, 14-week risk window was applied wherein exposure ended 14 weeks after Benlysta stopped. Event rate is calculated as: Number of all events / Total participant-years at risk of event expressed per 100 participant-years.
Event Rate of AESI Up to 63 Months Using As-Exposed - Time Varying StrategyUp to 63 MonthsAn AE is any unfavorable or unintended sign, symptom, or disease that is temporally associated with use of study agent but is not necessarily caused by study agent. AESIs including malignancies (excluding NMSC), serious infections, opportunistic infections and other infections of interest, NMSC, and selected serious psychiatric events were summarized. As event rate was computed for potentially recurrent events, no event rate was computed for mortality. As-exposed (time varying) exposure strategy dynamically assigned participants' exposure group based on Benlysta/Non-Benlysta use at time of event, during study follow-up. So, a participant's exposure group could change over time depending on SLE medication in use at specific time during study follow-up. For Benlysta, 14-week risk window was applied wherein exposure ended 14 weeks after Benlysta stopped. Event rate is calculated as: Number of all events / Total participant-years at risk of event expressed per 100 participant-years.

Countries

Argentina, Austria, Belgium, Canada, France, Germany, Israel, Italy, Portugal, Slovakia, Spain, Sweden, United States

Contacts

STUDY_DIRECTORGSK Clinical Trials

GlaxoSmithKline

Participant flow

Recruitment details

As a non-interventional study, no treatments were given in this study. Data were collected during participants' routine clinical visits. A total of 3138 participants were enrolled in the study (Enrolled Population: All participants who were enrolled irrespective of whether they met the inclusion or exclusion criteria). Of these, 2967 participants were included in Eligible Population. Eligible Population included participants from the Enrolled Population who met inclusion or exclusion criteria.

Pre-assignment details

A total of 171 participants from Enrolled Population (87 participants due to an inclusion or exclusion violation identified after study enrollment, and additional 74 participants who were on combination of medications that include both anti-malarials and corticosteroids \[without immunosuppressant\] at enrollment, 5 participants due to the lack of baseline treatment information, and 5 participants due to loss of informed consent form) were not included in Eligible Population.

Baseline characteristics

Characteristic
Age, Continuous44.3 YEARS
STANDARD_DEVIATION 13.54
Race/Ethnicity, Customized
Alaska Native or American Indian from North/Central/South America
42 Participants
Race/Ethnicity, Customized
Asian
63 Participants
Race/Ethnicity, Customized
Black-African American or African Heritage
532 Participants
Race/Ethnicity, Customized
Multiracial
39 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
2 Participants
Race/Ethnicity, Customized
Unknown
11 Participants
Race/Ethnicity, Customized
White
1543 Participants
Sex: Female, Male
Female
841 Participants
Sex: Female, Male
Male
227 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
48 / 1,92429 / 881
other
Total, other adverse events
81 / 1,92432 / 881
serious
Total, serious adverse events
248 / 1,924108 / 881

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 21, 2026