Abstract: Provided are methods for treating various spondyloarthritic and psoriatic conditions, including types of axial spondyloarthritis (axSpA), psoriatic arthritis (PsA), and psoriasis (PsO), with the JAK1 inhibitor, upadacitinib free base or pharmaceutically acceptable salt thereof. In various aspects, provided are methods for treating active non-radiographic axSpA (nr-axSpA), methods for treating active ankylosing spondylitis (AS), methods for treating active psoriatic arthritis (PsA), and methods for treating active psoriasis (PsO).

Abstract: The present disclosure relates to processes for preparing (3S,4R)-3-ethyl-4-(3H-imidazo[1,2-?]pyrrolo[2,3-e]pyrazin-8-yl)-N-(2,2,2-trifluoroethyl)pyrrolidine-1-carboxamide, solid state forms thereof, and corresponding pharmaceutical compositions, methods of treatment (including treatment of rheumatoid arthritis, ankylosing spondylitis, and psoriatic arthrritis), kits, methods of synthesis, and products-by -process.

Abstract: The present disclosure is directed to methods for treating Crohn's disease, and in particular, to methods for inducing clinical remission and/or endoscopic improvement of Crohn's disease, using a JAK1 inhibitor. In certain embodiments, the patient is administered an induction dose of the JAK1 inhibitor to induce clinical remission and/or endoscopic improvement of the Crohn's disease, followed by administration of at least one maintenance dose of the JAK1 inhibitor thereafter. In other embodiments, the present disclosure is directed to methods for treating ulcerative colitis using a JAK1 inhibitor.

Abstract: The present disclosure relates to processes for preparing (3S,4R)-3-ethyl-4-(3H-imidazo[1,2-?]pyrrolo[2.3-]pyrazin-8-yl)-N-(2,2,2-trifluoroethyl)pyrrolidine-1-carboxamide, solid state forms thereof, and corresponding pharmaceutical compositions, methods of treatment (including treatment of rheumatoid arthritis, ankylosing spondylitis, and psoriatic arthritis), kits, methods of synthesis, and products-by-process.

Abstract: The present disclosure is directed to methods for treating Crohn's disease, and in particular, to methods for inducing clinical remission and/or endoscopic improvement of Crohn's disease, using a JAK1 inhibitor. In certain embodiments, the patient is administered an induction dose of the JAK1 inhibitor to induce clinical remission and/or endoscopic improvement of the Crohn's disease, followed by administration of at least one maintenance dose of the JAK1 inhibitor thereafter. In other embodiments, the present disclosure is directed to methods for treating ulcerative colitis using a JAK1 inhibitor.

Abstract: The present disclosure is directed to methods for treating Crohn's disease, and in particular, to methods for inducing clinical remission and/or endoscopic improvement of Crohn's disease, using a JAK1 inhibitor. In certain embodiments, the patient is administered an induction dose of the JAK1 inhibitor to induce clinical remission and/or endoscopic improvement of the Crohn's disease, followed by administration of at least one maintenance dose of the JAK1 inhibitor thereafter. In other embodiments, the present disclosure is directed to methods for treating ulcerative colitis using a JAK1 inhibitor.

Abstract: Provided are methods for treating various spondyloarthritic and psoriatic conditions, including types of axial spondyloarthritis (axSpA), psoriatic arthritis (PsA), and psoriasis (PsO), with the JAK1 inhibitor, upadacitinib free base or pharmaceutically acceptable salt thereof. In various aspects, provided are methods for treating active non-radiographic axSpA (nr-axSpA), methods for treating active ankylosing spondylitis (AS), methods for treating active psoriatic arthritis (PsA), and methods for treating active psoriasis (PsO).

Abstract: The present disclosure is directed to methods for treating Crohn's disease, and in particular, to methods for inducing clinical remission and/or endoscopic improvement of Crohn's disease, using a JAK1 inhibitor. In certain embodiments, the patient is administered an induction dose of the JAK1 inhibitor to induce clinical remission and/or endoscopic improvement of the Crohn's disease, followed by administration of at least one maintenance dose of the JAK1 inhibitor thereafter. In other embodiments, the present disclosure is directed to methods for treating ulcerative colitis using a JAK1 inhibitor.