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Clinical Trial, Phase I
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't
Safety, Tolerability, and Pharmacodynamics of ABT-122, a Tumor Necrosis Factor- and Interleukin-17-Targeted Dual Variable Domain Immunoglobulin, in Patients With Rheumatoid Arthritis.
Arthritis & Rheumatology 2017 December
OBJECTIVE: Tumor necrosis factor (TNF) and interleukin-17 (IL-17) independently contribute to the pathophysiology of rheumatoid arthritis (RA). ABT-122 is a novel dual variable domain immunoglobulin that selectively and simultaneously targets human TNF and IL-17A. The aim of treatment with ABT-122 is to evoke a greater clinical response than that achieved by targeting either cytokine alone. This study was undertaken to present the pooled safety, tolerability, and exploratory pharmacodynamics of ABT-122 based on 2 phase I, placebo-controlled, multiple ascending-dose studies in patients with primarily inactive RA.
METHODS: Patients (n = 44) receiving stable dosages of methotrexate (2.5-25 mg/week) were randomized to receive subcutaneous placebo, ABT-122 1 mg/kg every other week (4 doses), or ABT-122 0.5, 1.5, or 3 mg/kg weekly (8 doses) and were evaluated through 45 days after the last dose (day 92). Serum samples for the assessment of inflammation markers and chemokines were collected at baseline and on postdose days 3, 5, 8, 15, 29, 57, 64, 78, and 92.
RESULTS: No clinically significant findings regarding the safety of ABT-122 were observed. The rates of treatment-emergent adverse events (AEs) were similar in patients receiving ABT-122 and those receiving placebo. Only 1 serious AE (and no systemic hypersensitivity reactions or dose-limiting toxicities) was observed in patients treated with ABT-122. The incidence of infections was similar between patients treated with ABT-122 and those receiving placebo, with no serious infection reported. The levels of CXCL9, CXCL10, CCL23, and soluble E-selectin were significantly decreased following ABT-122 treatment relative to placebo treatment. Although patients had essentially inactive RA, exploratory clinical parameters suggested potential antiinflammatory effects following treatment with ABT-122.
CONCLUSION: The results of these phase I studies suggest that dual neutralization of TNF and IL-17 with ABT-122 has characteristics acceptable for further exploration of therapeutic potential in TNF- and IL-17A-driven immune-mediated inflammatory diseases.
METHODS: Patients (n = 44) receiving stable dosages of methotrexate (2.5-25 mg/week) were randomized to receive subcutaneous placebo, ABT-122 1 mg/kg every other week (4 doses), or ABT-122 0.5, 1.5, or 3 mg/kg weekly (8 doses) and were evaluated through 45 days after the last dose (day 92). Serum samples for the assessment of inflammation markers and chemokines were collected at baseline and on postdose days 3, 5, 8, 15, 29, 57, 64, 78, and 92.
RESULTS: No clinically significant findings regarding the safety of ABT-122 were observed. The rates of treatment-emergent adverse events (AEs) were similar in patients receiving ABT-122 and those receiving placebo. Only 1 serious AE (and no systemic hypersensitivity reactions or dose-limiting toxicities) was observed in patients treated with ABT-122. The incidence of infections was similar between patients treated with ABT-122 and those receiving placebo, with no serious infection reported. The levels of CXCL9, CXCL10, CCL23, and soluble E-selectin were significantly decreased following ABT-122 treatment relative to placebo treatment. Although patients had essentially inactive RA, exploratory clinical parameters suggested potential antiinflammatory effects following treatment with ABT-122.
CONCLUSION: The results of these phase I studies suggest that dual neutralization of TNF and IL-17 with ABT-122 has characteristics acceptable for further exploration of therapeutic potential in TNF- and IL-17A-driven immune-mediated inflammatory diseases.
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