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Effect of Efsubaglutide Alfa on the Pharmacokinetics of Metformin and Digoxin in Healthy Participants

Wu X, He J, Wu J, Liu W, Xu Y, Li Y, Zhang J, Wang Q

Clinical pharmacokinetics, 2025

32 participants

Abstract

Background: Efsubaglutide alfa, as a novel glucagon-like peptide-1 receptor agonist, was developed for the treatment of type 2 diabetes mellitus. Its effect on the rate and extent of absorption of concomitant oral medications (digoxin and metformin) was evaluated in healthy participants.

Methods: We conducted a single-center, open-label, fixed-sequence clinical trial involving 32 healthy participants who were assigned to either digoxin (N = 16) or metformin (N = 16) groups. The participants received oral doses of digoxin (0.25 mg, single dose) or metformin (1000 mg at first dose, 500 mg twice daily for 2 days) before and after subcutaneous injections of 3 mg efsubaglutide alfa at steady state. Pharmacokinetic parameters of digoxin and metformin before and after the administration of efsubaglutide alfa injections were measured, and safety assessments were conducted throughout the study.

Results: Efsubaglutide alfa slightly delayed the time to reach peak plasma concentration (Tmax) of digoxin but had no substantial effect on its elimination. While the maximum concentration (Cmax) of digoxin decreased by approximately 24% (from 1.75 ± 0.673 to 1.37 ± 0.545 ng/mL), and AUC0-inf increased by about 15% (from 20.2 ± 3.53 to 23.2 ± 4.04 ng/h/mL). In the metformin group, efsubaglutide alfa did not noticeably affect Tmax, Cmax,ss, or the overall pharmacokinetics, as demonstrated by a consistent AUC0-tau (from 7557 ± 2155 to 8737 ± 2852 ng/h/mL). Adverse events with efsubaglutide alfa…

How strong is the evidence?

Evidence Hub reads this as a clinical trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 32 participants or records.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

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