Non‐clinical and first‐in‐human characterization of ECC5004 / AZD5004 , a novel once‐daily, oral small‐molecule GLP ‐1 receptor agonist

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AIMS: GLP-1 receptor agonists (GLP-1 RAs) are proven therapies for type 2 diabetes mellitus (T2DM) and overweight or obesity. We performed non-clinical and first-in-human (FIH) evaluation of ECC5004/AZD5004, an oral small-molecule GLP-1 RA. MATERIALS AND METHODS: ECC5004 was profiled in cell lines overexpressing human GLP-1R, in glucose-stimulated insulin secretion (GSIS) assays in a human β-cell line and non-human primates (NHPs). To evaluate safety, ECC5004 was orally administered to NHPs for 9 months and a phase I, double-blind, placebo-controlled FIH study was conducted. This study evaluated single doses of ECC5004 (1-300 mg) in healthy volunteers, and multiple daily doses (5, 10, 30 and 50 mg) in patients with T2DM for 28 days. RESULTS: = 0.022 nM). Dose-dependent body weight changes compared to control were seen in the 9-month NHP toxicity study. In the first-in-human study, ECC5004 was well tolerated with no serious adverse events. Dose-dependent reductions in glucose and body weight were observed with a dose-proportional exposure at doses ≥25 mg. CONCLUSION: ECC5004 engaged the GLP-1R across the therapeutic dose range tested and had a safety and tolerability profile consistent with other GLP-1 RAs, along with a pharmacokinetic profile compatible with once-daily oral dosing. These data support continued development of ECC5004 as a potential therapy for T2DM and overweight or obesity. CLINICAL TRIAL REGISTRATION: NCT05654831.

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