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| Clinical data | |
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| Other names | ORN-0829; TS-142 |
| Routes of administration | By mouth [1] |
| Drug class | Orexin antagonist |
| Pharmacokinetic data | |
| Elimination half-life | 1.3–3.3 hours [1] [2] |
| Identifiers | |
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| CAS Number | |
| PubChem CID | |
| ChemSpider | |
| UNII | |
| KEGG | |
| Chemical and physical data | |
| Formula | C23H22FN7O2 |
| Molar mass | 447.474 g·mol−1 |
| 3D model (JSmol) | |
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Vornorexant, also known by its developmental code names ORN-0829 and TS-142, is an orexin antagonist medication which is under development for the treatment of insomnia and sleep apnea. [3] [4] [5] It is a dual orexin OX1 and OX2 receptor antagonist (DORA). [5] [6] The medication is taken by mouth. [1] As of June 2021, vornorexant is in phase 2 clinical trials for insomnia and phase 1 trials for sleep apnea. [3] It is under development by Taisho Pharmaceutical. [3]
Vornorexant has a time to peak of 2.5 hours and a relatively short elimination half-life of 1.3 to 3.3 hours. [1] [2] It was designed to have a short half-life and duration in order to reduce next-day side effects like somnolence. [5]