A Single-Center, Randomized, Open-Label, Dose-Escalation Study to Evaluate the Pharmacokinetics of Tacrine Analogue Octahydrogenacridine Succinate Tablets in Healthy Chinese Subjects

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The objectives of the present study were to investigate the pharmacokinetics (PK) of tacrine analogue octahydrogenacridine (OHA) succinate tablets in healthy Chinese subjects. A single-center, randomized, open-label, dose-escalation study was conducted in 42 healthy Chinese subjects. Part I of the study (n=30, 16 male and 14 female) evaluated the PK profiles of OHA in healthy Chinese subjects (aged 18–45 years) after single and multiple doses of 2 mg, 4 mg and 8 mg. Part II (n=10) assessed food effect on PK characteristics of OHA. The 10 participants of 4 mg dose group in part I were given another single dose of 4 mg OHA under fed condition. Part III (n=12, 7 male and 5 female) investigate PK behavior of OHA in elderly (aged 65–75 years) Chinese healthy subjects. In Part I, following a single- and multiple-dose, octahydrogenacridine succinate was rapidly absorbed with a median tmax of 0.67 to 1.00 h, and was eliminated with a mean t1/2 of 2.27 to 2.98 h in all dose groups and did not appear to be dose dependent. In Part II, there were no significant differences in Cmax, AUC0–tn or tmax between 4 mg single dose fasting group and fed group (p=0.257, 0.153, 0.098, respectively). In Part III, both in single-dose and multiple-dose treatment, the main PK parameters of OHA in the elderly healthy Chinese subjects showed no statistical difference with those of non-elderly group. All these results indicated that OHA might be a promising drug under development for Alzheimer’s disease (AD) therapy.

A Single-Center, Randomized, Open-Label, Dose-Escalation Study to Evaluate the Pharmacokinetics of Tacrine Analogue Octahydrogenacridine Succinate Tablets in Healthy Chinese Subjects

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