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Background EIMs are common in patients with UC and are associated with impaired quality of life. This analysis evaluated the impact of treatment with the selective Janus kinase 1 inhibitor UPA on EIMs in patients with moderate-to-severe UC. Methods Data were included from two induction studies (U-ACHIEVE Induction [NCT02819635] and U-ACCOMPLISH [NCT03653026]) and a maintenance study (U-ACHIEVE Maintenance). Patients with moderate-to-severe UC were randomised 2:1 to 8 weeks’ induction treatment with UPA 45 mg once daily (QD) or placebo. Patients with a clinical response to induction were re-randomised (1:1:1) to 52 weeks’ maintenance treatment with UPA 15 mg or 30 mg QD, or placebo. The presence of EIMs (peripheral arthropathy, axial arthropathy, episcleritis, uveitis, iritis, erythema nodosum, pyoderma gangrenosum, Sweet’s syndrome, oral aphthous ulcers, primary sclerosing cholangitis, autoimmune hepatitis, venous thromboembolism, chronic obstructive pulmonary disease, bronchiectasis, nephrolithiasis and anaemia) was captured in the EIM form at the start of induction (baseline) and at every visit up to Week 52. The induction study results were pooled for analysis. Results At baseline, 25.0% and 26.5% of patients in the UPA 45 mg QD and placebo induction groups had ≥1 EIM, while 24.3%, 26.6% and 24.8% of patients randomised to maintenance treatment with UPA 15 mg QD, UPA 30 mg QD or placebo, respectively, had ≥1 EIM (Table 1). The most common EIMs at baseline were anaemia, peripheral arthropathy and axial arthropathy; all other EIMs were reported in &amp;lt;2% of patients (Table 1). The proportion of patients reporting resolution of any EIM, arthropathy (peripheral and axial) and anaemia at Week 8 was numerically greater with UPA 45 mg QD than placebo in the induction studies (Figure 1A). Resolution at Week 52 of any EIM in patients with ≥1 EIM at baseline was significantly increased with UPA 30 mg QD (p&amp;lt;0.001), and numerically greater with UPA 15 mg QD, versus placebo (Figure 1B). In patients with arthropathy (peripheral or axial) at baseline, the proportion achieving resolution of arthropathy (peripheral and axial) at Week 52 was significantly increased with UPA 30 mg QD (p=0.010), and numerically higher with UPA 15 mg QD, versus placebo (Figure 1B). The same was true of anaemia resolution in patients with anaemia at baseline (p=0.019 for UPA 30 mg QD versus placebo; Figure 1B). Conclusion UPA treatment is effective in resolving EIMs in patients with UC. EIM symptom resolution was improved versus placebo following induction treatment with UPA 45 mg and after maintenance treatment with UPA 15 or 30 mg, with the 30 mg dose providing statistically significant improvements versus placebo.

journal of crohn's and colitis

OP33 Effect of upadacitinib (UPA) treatment on extraintestinal manifestations (EIMs) in patients with moderate-to-severe Ulcerative Colitis (UC): Results from the UPA Phase 3 programme