Upadacitinib advances to phase III clinical trials in systemic lupus erythematosus.- AbbVie
AbbVie announced topline results from a Phase II study of upadacitinib (Rinvoq, 30 mg) given alone or as combination therapy (ABBV-599) with a Bruton's Tyrosine Kinase inhibitor (elsubrutinib, 60 mg), once daily in patients with moderately to severely active systemic lupus erythematosus (SLE)
The SLEek study met the primary endpoint of SLE Responder Index (SRI-4) and steroid dose less than or equal to 10 mg prednisone equivalent once per day at week 24 in the upadacitinib 30 mg group. Based on the results, AbbVie is advancing its clinical program of upadacitinib in SLE to Phase III.
"Systemic lupus erythematosus is a very unpredictable life-long condition and the way it affects a patient can change over time. Therefore, there is a critical need for additional treatment options," said Roopal Thakkar, M.D., senior vice president, development and regulatory affairs and chief medical officer, AbbVie. "With a quarter-century of experience and commitment to the treatment of rheumatic diseases, our focus remains on areas of high unmet need like systemic lupus erythematosus, and we look forward to further evaluation of the potential benefits that upadacitinib could bring to patients."
A total of 341 participants enrolled in the Phase II study and were subsequently divided into five experimental groups according to treatment regimen (upadacitinib in combination with placebo; upadacitinib, at two different doses, combined with elsubrutinib; elsubrutinib in combination with placebo; placebo only). The primary outcome measure was achievement of the SRI-4 with a steroid dose less than or equal to 10 mg prednisone equivalent once daily at week 24. SRI-4 is defined as a greater or equal to 4-point reduction in SLE Disease Activity Index 2000 score without worsening of the overall condition or the development of significant disease activity in new organ systems. The safety results for the upadacitinib 30 mg arm of the study were generally consistent with the known safety profile of upadacitinib, with no new safety signals identified. Types of adverse events reported with upadacitinib combined with elsubrutinib were similar to those reported for patients treated with upadacitinib alone.
Full results from the study will be presented at a future medical congress. Use of upadacitinib and elsubrutinib in SLE are not approved and their safety and efficacy have not been evaluated by regulatory authorities.
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