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OP0252 (2018)
Organ damage progression and long-term safety of belimumab (BEL) in patients with systemic lupus erythematosus (SLE): an extension of pivotal phase 3 bliss studies
R.F. Van Vollenhoven1, S.V. Navarra2, R.A. Levy3, M. Thomas4, A. Heath3, T. Lustine3, A. Adamkovic3, J. Fettiplace5, M.L. Wang3, B. Ji5, D. Roth3
1Amsterdam Rheumatology and Immunology Center ARC, Amsterdam, Netherlands
2University of Santo Tomas Hospital, Manila, Philippines
3GSK, Collegeville, PA, USA
4Kerala Institute of Medical Sciences, Trivandrum, Kerala, India
5GSK, Stockley Park, UK

 

Background: Non-United States completers of the Phase 3 BLISS-52 (BEL110752) and BLISS-76 (BEL110751) studies could continue treatment with BEL.

Objectives: To evaluate long-term safety, tolerability and organ damage progression in patients with SLE treated with BEL.

Methods: In this multicentre, open-label long-term study (BEL112234/NCT00712933), patients received intravenous BEL every 4 weeks, plus standard SLE therapy. Safety was assessed at each visit. Organ damage (Systemic Lupus International Collaborative Clinics/American College of Rheumatology Damage Index [SDI]) was assessed as a safety endpoint every 48 weeks. The study continued until BEL was commercially available in each patient’s country and included an 8 week follow–up period.

Results: In total, 738 patients entered the long-term study and were treated for up to 9 years (3352 patient-years). Of these, 735 (99.6%) received ≥1 dose of BEL; the mean (SD) number of infusions was 56.4 (27.02). The incidence of adverse events (AEs) remained stable or declined over time (table 1). The most common AEs were headache (n=205, 27.9%), nasopharyngitis (n=155, 21.1%), diarrhoea (n=143, 19.5%), arthralgia (n=136, 18.5%) and influenza (n=134, 18.2%). Sixty-nine patients (9.4%) experienced an AE resulting in discontinuation of BEL or study withdrawal. Eleven deaths occurred, one of which (cardiogenic shock) was possibly related to BEL. Three serious AEs of suicide attempt/ideation (0.4%) occurred. The mean (SD) SDI score was 0.6 (1.02) at baseline (prior to the first dose of BEL). At Year 8 87.7% of patients had no change in SDI score from baseline, indicating low organ damage accrual (figure 1).

aNumber of patients; bincluded opportunistic infections, tuberculosis, herpes zoster (recurrent and disseminated) and sepsis; ctwo deaths during post-treatment follow-up.

Conclusions: BEL displayed a stable safety profile with no new safety signals. There was minimal organ damage progression.

Abstract OP0252 - Table 1
Safety results, na (%) Any time post baseline n=735 Year 0-1 n=735 Year 1 -2 n=701 Year 2-3 n=620 Year 3-4 n=514 Year 4-5 n=442 Year 5-6 n=345 Year 67 n=219 Year 78 n=65 Year 8 + n=6
≥1 AE 706 (96.1) 617 (83.9) 502 (71.6) 441 (71.1) 344 (66.9) 261 (59.0) 181 (52.5) 92 (42.0) 26 (40.0) 3 (50.0)
≥1 AE resulting in treatment discontinuation 69 (9.4) 13 (1.8) 13 (1.9) 20 (3.2) 10 (1.9) 7(1.6) 5(1.4) 0 0 0
≥1 serious AE 231 (31.4) 78 (10.6) 58 (8.3) 66 (10.6) 44 (8.6) 27 (6.1) 16 (4.6) 11 (5.0) 1 (1.5) 0
Serious infections/infestations 107 (14.6) 36 (4.9) 24 (3.4) 26 (4.2) 17 (3.3) 14 (3.2) 6(1.7) 5 (2.3) 1 (1.5) 0
Infections of special interestb 95 (12.9) 32 (4.4) 16 (2.3) 20 (3.2) 21 (4.1) 10 (2.3) 11 (3.2) 2 (0.9) 0 0
All malignant neoplasms (except non-melanoma skin cancer) 6 (0.8) 1 (0.1) 1 (0.1) 1 (0.2) 2 (0.4) 1 (0.2) 0 0 0 0
Depression/suicide/self-injury 86 (11.7) 40 (5.4) 24 (3.4) 14 (2.3) 14 (2.7) 4 (0.9) 4(1.2) 4(1.8) 0 0
Death 11 (1.5)c 2 (0.3) 1 (0.1) 2 (0.3) 2 (0.4) 2 (0.5) 0 0 0 0
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Acknowledgements: Study funded by GSK. Emma Hargreaves, MA, Fishawack Indicia Ltd, UK, provided editorial assistance funded by GSK.

Disclosure of Interest: R. Van Vollenhoven Grant/research support from: GSK, Consultant for: GSK, S. Navarra Speakers bureau: GSK, R. Levy Employee of: BLISS-52 investigator and GSK employee since ,Jan 2018 M. Thomas Grant/research support from: GSK, Consultant for: GSK, A. Heath Shareholder of: GSK, Employee of: GSK, T. Lustine Shareholder of: GSK, Employee of: GSK, A. Adamkovic Shareholder of: GSK, Employee of: GSK, J. Fettiplace Shareholder of: GSK, Employee of: GSK (at the time of study), M. L. Wang Shareholder of: GSK, Employee of: GSK, B. Ji Shareholder of: GSK, Employee of: GSK, D. Roth Shareholder of: GSK, Employee of: GSK

DOI: 10.1136/annrheumdis-2018-eular.3306



Citation: Ann Rheum Dis, volume 77, supplement Suppl, year 2018, page A175
Session: Present and future treatments for SLE, Sjögren’s and APS