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FILGOTINIB DEMONSTRATES DURABLE EFFICACY AND CONSISTENT SAFETY PROFILE AT 52 WEEKS IN FINCH 1 AND 3 STUDIES IN RHEUMATOID ARTHRITIS-- Integrated Safety Analysis from the Phase 3 FINCH and Phase 2 DARWIN Programs Informs Long-Term Safety Profile of Filgotinib in RA -- -- Data Presented at The European League Against Rheumatism, EULAR, European E-Congress of Rheumatology 2020 -- Foster City, Calif., & Mechelen, Belgium, 4 June, 2020, 07.00 CET – Gilead Sciences, Inc. (Nasdaq: GILD) and Galapagos NV (Euronext & Nasdaq: GLPG) today announced Week 52 results from the Phase 3 FINCH 1 and FINCH 3 studies of filgotinib, an investigational, oral, selective JAK1 inhibitor, in adults with moderately to severely active rheumatoid arthritis (RA). The data demonstrate sustained efficacy and a consistent safety profile with up to 52 weeks of filgotinib treatment across RA patient populations. The new data are among 15 abstracts on filgotinib in RA that will be presented at the European League Against Rheumatism, EULAR, European E-Congress of Rheumatology 2020. “Many people with RA struggle with uncontrolled symptoms that affect their daily lives. We are working to develop effective and well-tolerated treatment options that will make a difference in the lives of patients,” said Mark Genovese, MD, Senior Vice President, Inflammation, Gilead Sciences. “These data add to the body of evidence supporting filgotinib as a potential treatment option for a range of RA patients.” “After more than 4,544 patient years’ exposure thus far, the FINCH and DARWIN programs continue to show that filgotinib has a consistent efficacy and safety profile and has the potential to help more people living with RA achieve symptom control,” said Walid Abi-Saab, MD, Chief Medical Officer at Galapagos. FINCH 1 – 52-Week Data from Phase 3 Study in Patients with Inadequate Response to Methotrexate (Poster #0198)1 The majority of patients in FINCH 1 (80.7 percent, n=1,417/1755) completed 52 weeks of treatment with study drug. Both doses of filgotinib showed sustained efficacy in primary and secondary outcome measures at Week 52. In addition, a greater proportion of patients treated with filgotinib 200 mg achieved low disease activity (DAS28(CRP) =3.2) and clinical remission (DAS28(CRP) <2.6) compared with adalimumab-treated patients at Week 52 (nominal p<0.05). Rates of remission based on CDAI =2.8 and Boolean remission criteria were also nominally significantly higher in patients receiving filgotinib 200 mg versus adalimumab at Week 52 (nominal p<0.05). Reductions in Heath Assessment Questionnaire-Disability Index from baseline to Week 52 were greater in patients receiving filgotinib 200 mg versus those receiving adalimumab (nominal p<0.05). Response rates were numerically similar between patients treated with filgotinib 100 mg versus adalimumab for these endpoints. Filgotinib 200 mg and 100 mg demonstrated a consistent safety profile in this study of MTX-IR patients, and no new safety signals were detected through Week 52. There were five deaths reported prior to Week 24; two patients were in the placebo group, two were in the filgotinib 200 mg group and one was in the filgotinib 100 mg group. Four deaths were reported between Weeks 24 and 52; two treated with filgotinib 200 mg, one in the adalimumab group, and one in the placebo group. Adverse events of interest including serious infections, herpes zoster, venous thromboembolism (VTE) and major adverse cardiovascular events (MACE) were infrequent and balanced across treatment groups. Herpes zoster was observed in all treatment groups, with a numeric increase in the filgotinib 200 mg group compared with the filgotinib 100 mg group. FINCH 3 - Week 52 Data from Phase 3 Study in Methotrexate-Naïve Patients (Poster #0158)2 The majority of patients in FINCH 3 (78.1 percent, n=975/1,249) received study drug through Week 52. In this analysis, all treatment groups demonstrated sustained efficacy through Week 52 based on clinical response, physical function and radiographic progression. Higher proportions of patients in the filgotinib 200 mg plus methotrexate, 100 mg plus methotrexate and filgotinib 200 mg monotherapy achieved ACR20 (nominal p <0.001, p<0.01 and p<0.001), ACR50 (nominal p<0.001, p<0.01 and p<0.01), ACR70 response (nominal p<0.001, p<0.05, p<0.01) and disease remission (nominal p<0.001 for all three arms) compared with patients receiving methotrexate monotherapy at Week 52. Patients treated with filgotinib 200 mg plus methotrexate (nominal p<0.001) or filgotinib monotherapy (nominal p<0.05) experienced a significantly greater reduction in physical function (measured by reductions in Heath Assessment Questionnaire-Disability Index from baseline) compared with those receiving methotrexate alone at Week 52. Patients in the filgotinib treatment groups demonstrated less progression of structural damage at Week 52 with filgotinib 200 mg plus methotrexate (nominal p<0.001); filgotinib 100 mg plus methotrexate and filgotinib 200 mg monotherapy (nominal p<0.05) versus patients receiving methotrexate monotherapy. Treatment with filgotinib either in combination with methotrexate or as monotherapy demonstrated a consistent safety profile in this study of methotrexate-naive patients, and no new safety signals were detected. Three deaths were repored in the filgotinib 200 mg plus methotrexate group and one death was reported in the filgotinib 100 mg plus methotrexate group. Adverse events of interest, including rates of infections, serious infections and herpes zoster occurred at similar rates with filgotinib as methotrexate monotherapy. There were no VTEs reported in the filgotinib treatment groups. In addition to the 52-week FINCH 1 and FINCH 3 study results, new analyses on the safety and efficacy of filgotinib for the treatment of RA will also be presented at the congress. FINCH 2 - Subgroup Analysis in Patients with Inadequate Response to Biologic DMARDs (Poster #0204)3 Adverse events across subgroups were consistent with the overall study population. Integrated Safety Analysis from Phase 3 FINCH and Phase 2 DARWIN Programs (Poster #0202)4 Exposure-adjusted incidence rates (EAIRs) of serious adverse events or treatment-emergent adverse events leading to death in patients who received filgotinib were comparable with EAIRs in patients treated with placebo, adalimumab or methotrexate; no dose-dependent effects were noted. With filgotinib, EAIR of serious infections and herpes zoster were generally similar to adalimumab and methotrexate. Most cases of herpes zoster were mild to moderate and not serious. The frequency of MACE and VTE were numerically lower for filgotinib relative to placebo. In this integrated analysis, filgotinib was well-tolerated, and no new safety concerns were identified. Filgotinib is an investigational drug whose efficacy and safety have not been demonstrated. It is not approved for use by any regulatory authority. About the Filgotinib Collaboration5 About Gilead Sciences Gilead Sciences, Inc. is a research-based biopharmaceutical company that discovers, develops and commercializes innovative medicines in areas of unmet medical need. The company strives to transform and simplify care for people with life-threatening illnesses around the world. Gilead has operations in more than 35 countries worldwide, with headquarters in Foster City, California. For more information on Gilead Sciences, please visit the company’s website at www.gilead.com. About Galapagos Gilead Forward-Looking Statement Galapagos Forward-Looking Statement # # # Contacts Gilead 1Combe, B et al. Efficacy and Safety of Filgotinib for Patients with Rheumatoid Arthritis with Inadequate Response to Methotrexate: FINCH 1 52-Week Results. Abstract at the European League Against Rheumatism, EULAR, European E-Congress of Rheumatology 2020. 2Westhovens, R et al. Efficacy and Safety of Filgotinib in Methotrexate-Naïve Patients with Rheumatoid Arthritis: FINCH 3 52-Week Results. Abstract at the European League Against Rheumatism, EULAR, European E-Congress of Rheumatology 2020. 3Gottenberg, J-E et al. A Subgroup Analysis of Low Disease Activity and Remission from Phase 3 Study of Filgotinib in Patients with Inadequate Response to Biologic DMARDs. Abstract at the European League Against Rheumatism, EULAR, European E-Congress of Rheumatology 2020. 4Genovese, M C et al. Integrated safety Analysis of Filgotinib Treatment for Rheumatoid Arthritis from 7 Clinical Trials. Abstract at the European League Against Rheumatism, EULAR, European E-Congress of Rheumatology 2020. 5 Gilead & Galapagos Filgotinib Clinical Program Trial Details: FINCH 1 (NCT02889796); FINCH 2 (NCT02873936); FINCH 3 (NCT02886728); SELECTION (NCT02914522); DIVERSITY (NCT02914561); PENGUIN 1 (NCT04115748); PENGUIN 2 (NCT04115839)
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