Inebilizumab for the Treatment of Patients With Type 1 Autoimmune Pancreatitis

Summary

Autoimmune pancreatitis (AIP) is an immune-related inflammatory disease of the pancreas. Relapse can occur after treatment, and long-term treatment with glucocorticoids and conventional immunosuppressants can cause significant side effects. This multicenter, single-arm, open-label study aims to evaluate the efficacy and safety of inebilizumab in patients with AIP. Inebilizumab targets CD19 and reduces B cells, including plasmablasts. The study plans to enroll 50 patients with confirmed AIP, including both newly diagnosed patients and patients with relapsing disease. All eligible participants will receive inebilizumab and follow a standardized glucocorticoid dose-reduction regimen. The primary objective is to assess whether inebilizumab can reduce the relapse rate within 32 weeks. Secondary objectives are to assess its effects on glucocorticoid use, serum IgG4 levels, B-cell counts, and other immune cells. Peripheral blood samples and lymph node samples will be collected for exploratory mechanistic analyses to characterize circulating and tissue immune-cell populations and blood-based biomarkers during treatment and follow-up.

Timeline

Start

2025-10-01

Primary completion

2028-09-30

Completion

2028-09-30

Drugs

Indications