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Single Ascending Dose Study to Assess Pharmacokinetic Linearity, Safety, and Tolerability of Trimetazidine - Modified Release in Healthy Human Subjects

Drug Research, ISSN: 2194-9387, Vol: 70, Issue: 10, Page: 472-477
2020
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Article Description

Aim This study assessed the linearity of pharmacokinetics (PK) of trimetazidine (TMZ) modified-release tablets (indicated in adults as an add-on therapy for stable angina pectoris) and measured its renal elimination, safety, and tolerability in healthy subjects. Methods This was a randomized, open-label, single-ascending dose study in healthy subjects. Subjects were administered with a single dose of 35, 70, or 105 mg TMZ-modified release tablets (six subjects each). Pharmacokinetic evaluations and safety analysis were performed before the first dose and till 48 h post-first dose. Results Following administration of 35, 70, and 105 mg TMZ-modified release; the C (mean±SD) was 79.32 (±23.08), 153.17 (±23.08), and 199.67 (±23.08) ng/mL, the T was 5.42 (±0.49), 4.51 (±1.27), and 4.57 (±0.96) h, t was 7.75 (±1.62), 6.40 (±1.23), and 6.50 (±1.18) h, AUC was 1116.89 (±378.35), 1838.39 (±284.50), and 2504.84 (±348.35) ng.h/mL, CL was 13.70 (±2.24), 14.80 (±5.91), and 19.58 (±6.24) L·h and CL/F was 33.69 (±8.51), 38.85 (±6.15), and 42.74 (±7.10) L·h , respectively. Slope estimates for AUC , AUC , and C were less than 1. Corresponding 95% CI of the slope for the AUC parameters excluded 1, indicating that the deviation from dose-proportionality was statistically significant. Corresponding 95% CI of the slope for C included 1, indicating that the less than dose-proportional increase in C was not statistically significant. No significant adverse events were observed. Conclusion Substantial deviation from a dose-proportional increase in AUC and AUC suggested a non-linear PK for TMZ-modified release. Single dose of TMZ-modified release was well tolerated and safe.

Bibliographic Details

Körnicke, Thomas; Arora, Deepa; Samad, Abdus; Kaplan, Sigal; Domahidy, Mónika; de Voogd, Hanka; Böhmert, Stella; Ramos, Rita Silveira; Jain, Shashank

Georg Thieme Verlag KG

Pharmacology, Toxicology and Pharmaceutics

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