Observational studyDrug design, development and therapy2026
Real-World Efficacy and Safety of Adalimumab Biosimilar (HS016) in Biologic-Naïve Patients with Perianal Fistulizing Crohn's Disease: A Prospective, Single-Arm, Observational Study.
Observational study in Drug design, development and therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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10 authors.
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Abstract
Background and Aims: Anti-tumor necrosis factor (TNF-α) agents are first-line therapies for perianal fistulizing Crohn's disease (PFCD), but evidence for adalimumab (ADA) biosimilar HS016 in biologic-naïve PFCD patients remains limited. This study explored the efficacy and safety of HS016 in this patient population. Methods: This prospective, single-arm, real-world observational study recruited biologic-naïve PFCD patients at Union Hospital, Tongji Medical College, Huazhong University of Science and Technology. Induction therapy included subcutaneous HS016 (160 mg at week 0, 80 mg at week 2, 40 mg Q2W from week 4-12), and maintenance therapy (week 14-52) used 40/80 mg Q2W. Primary efficacy and safety endpoints were the fistula clinical remission (FCrem) at week 54 and adverse events (AEs) incidence. Secondary endpoints included FCrem at week 14 and 26, fistula clinical response (FCres), radiological fistula part response (RFRS), radiological fistula healing (RFH), intestinal endoscopic response(IEres), intestinal endoscopic remission(IErem), intestinal clinical response(ICres), intestinal clinical remission(ICrem) at week 14, 26 and 54. Exploratory endpoints included changes in the scores of CDAI, PDAI, VAS and IBDQ, as well as the levels of Hb, ALb, CRP, ESR and FC. Results: A total of 60 patients were enrolled, with 42 completing the study. The proportions of FCres, FCrem, RFRS, RFH, IEres, IEresm, ICres, and ICrem at week 26 were 56.67%, 40.00%, 30.00%, and 31.67%, 55.00%, 45.00%, 68.89%, and 55.56%, respectively. The rates of PFCD patients achieving FCres, FCrem, RFRS, RFH, IEres, IEresm, ICres, and ICrem at week 54 were 48.33%, 38.33%, 31.67%, 26.67%, 71.11%, 60.00%, 60.00%, and 53.33%, respectively. Following HS016 dose escalation, some patients exhibited improved fistula activity and endoscopic findings. During treatment, 3 patients (5%) developed transient rashes, with no treatment discontinuation required. Conclusion: HS016 exhibits significant efficacy and an acceptable safety profile in biologic-naïve PFCD patients, though the incremental maintenance strategy shows limited efficacy.
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