Abstract
Background and Objective
SUVN-G3031 is a novel, potent, and selective histamine-3 receptor (H3R) inverse agonist in development for the treatment of narcolepsy. Our objective was to characterize the safety, tolerability, and pharmacokinetics of SUVN-G3031 in healthy young adults after single and multiple doses, and to evaluate the effect of food, gender, and age on the pharmacokinetics.
Methods
A single ascending dose (SAD) and a multiple ascending dose (MAD) study for 14 days was conducted in healthy young adults using a randomized, double-blind study design. The effect of food, gender, and age on SUVN-G3031 pharmacokinetics (6 mg as a single dose) was evaluated using an open-label, two-period, randomized, crossover design in fed and fasted states. Pharmacokinetics and safety assessments were conducted throughout the study.
Results
Single doses of SUVN-G3031 up to 20 mg and multiple doses up to 6 mg once daily were found to be safe and well tolerated in healthy young adults. The most frequently reported adverse events were abnormal dreams, dyssomnia, and hot flushes. SUVN-G3031 exposure was dose proportional across the tested doses. Steady state was achieved on day 6 after once-daily dosing. Renal excretion (~ 60%) of unchanged SUVN-G3031 was the major route of elimination. Food, gender, and age did not have any clinically meaningful effect on SUVN-G3031 exposure.
Conclusion
SUVN-G3031 was found to be safe and well tolerated in healthy human subjects without any effect of age, gender, and food on the pharmacokinetics and safety profile.
Clinical Trials Registration (https://clinicaltrials.gov): NCT04072380 and NCT02342041.
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Acknowledgements
The authors wish to acknowledge the principal investigators from Quintiles Phase One Services LLC for their support in the conduct of the studies reported in this article.
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This study was sponsored by Suven Life Sciences Ltd.
Conflict of interest
All authors are employees of Suven Life Sciences Ltd. The authors have no other conflicts of interest to declare.
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All subjects provided written informed consent. The study was conducted at Quintiles Phase One Services LLC (Overland Park, KS, USA).
Ethics approval
The study was conducted in compliance with the International Ethical Guidelines for Biomedical Research Involving Human Subjects, Good Clinical Practice Guidelines, and the Declaration of Helsinki. The protocols were reviewed and approved by the institutional review board, Midlands Independent Review Board (Overland Park, KS, USA).
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Nirogi, R., Mudigonda, K., Bhyrapuneni, G. et al. Safety, Tolerability, and Pharmacokinetics of SUVN-G3031, a Novel Histamine-3 Receptor Inverse Agonist for the Treatment of Narcolepsy, in Healthy Human Subjects Following Single and Multiple Oral Doses. Clin Drug Investig 40, 603–615 (2020). https://doi.org/10.1007/s40261-020-00920-8
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DOI: https://doi.org/10.1007/s40261-020-00920-8