Multiple completed Phase 1 and Phase 3 clinical trials have evaluated Almorexant for primary insomnia and sleep induction, assessing safety, pharmacokinetics, pharmacodynamics, abuse potential, and neurocognitive performance in healthy volunteers and patients. Sponsored by Idorsia Pharmaceuticals Ltd., Midnight Pharma, LLC, and the Northern California Institute of Research and Education, these studies established the drug's overall safety parameters and therapeutic efficacy.
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
|---|---|---|---|---|---|
| NCT01243060 | COMPLETED | Healthy Volunteers |
Northern California Institute of Research and Education |
2011-05 | |
| NCT01954589 | COMPLETED | Safety; Tolerability; Pharmacodynamics; Pharmacokinetics |
Idorsia Pharmaceuticals Ltd. |
2011-11 | PHASE1 |
| NCT01987739 | COMPLETED | Abuse Potential Study |
Midnight Pharma, LLC |
2009-09 | PHASE1 |
| NCT00608985 | COMPLETED | Primary Insomnia |
Midnight Pharma, LLC |
2008-03 | PHASE3 |
| NCT00640848 | COMPLETED | Insomnia; Primary Insomnia |
Midnight Pharma, LLC |
2006-05 | PHASE1 |
(data from https://clinicaltrials.gov, updated on 2014-10-06)
Check the
Almorexant HCl
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
Mechanism and Biochemical Profile
Appendix RUO and cGMP Quality Standards
| Quality Dimension | RUO (Research Use Only) | cGMP (Current Good Manufacturing Practice) |
|---|---|---|
| Clinical Applicability | Prohibited in human clinical trials or medical diagnostics. | Mandatory for human clinical trials (Phase I–III) and therapies. |
| Regulatory Status | Non-regulated grade; exempt from drug manufacturing laws. | Legally enforced by health authorities (e.g., FDA, EMA, NMPA). |
| Facility Environment | Unclassified analytical or research laboratories. | Validated Cleanrooms (ISO Class 5–8) with continuous monitoring. |
| Quality Control | Basic purity and activity testing. | Rigorous safety release testing (Sterility, Endotoxin, Mycoplasma). |
| Process Validation | Basic equipment calibration; no process validation required. | Full qualification (IQ/OQ/PQ) and complete batch records. |
| Quality Assurance | Vendor self-declared without required formal QMS. | Mandatory QA/QC unit, Change Control, CAPA, and vendor audits. |
| Regulatory Impact | High risk of IND rejection if used as a critical raw material. | Required for IND/NDA filings, supported by Drug Master Files (DMF). |
Footnotes
Regulatory Note: Governed by FDA (21 CFR Parts 210/211/312), EMA (EudraLex Vol 4), ICH Guidelines (E6/Q7/Q9/Q10), and compendial standards (USP <71>/<85>/<1043>).
Note: Technical data last updated: Sep 1, 2026.