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HE3286: a novel synthetic steroid as an oral treatment for autoimmune disease
Abstract:
HE3286 (17alpha-ethynyl-5-androstene-3beta, 7beta, 17beta-triol) is a synthetic derivative of a natural anti-inflammatory steroid, beta-AET (5-androstene-3beta, 7beta, 17beta-triol). HE3286 is orally bioavailable and treats established disease in models of ulcerative colitis, collagen-induced arthritis, and collagen antibody-induced arthritis, reducing clinical signs of disease and proinflammatory signals, including IL-6 and matrix metallopeptidase 3. HE3286 modulates nuclear factor kappaB through an unknown mechanism but does not interact with any of the steroid-binding nuclear hormone receptors and is not immune suppressive. HE3286 was safe and well tolerated in phase I studies and is under evaluation in multicenter phase I/II clinical trials for ulcerative colitis and arthritis. HE3286 may provide a new treatment option for patients with inflammatory and autoimmune diseases.
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