Clinical Trials

Multiple clinical trials evaluate the therapeutic efficacy of trazodone hydrochloride across indications including obstructive sleep apnea, major depressive disorder, and selective serotonin reuptake inhibitor-induced sexual dysfunction. Spanning Phase 1/Phase 2, Phase 3, and Not Applicable classifications, these studies are reported as completed or actively recruiting. Research sponsors include academic institutions and pharmaceutical entities, specifically Brigham and Women's Hospital, Aziende Chimiche Riunite Angelini Francesco S.p.A., and Beitou Armed Forces Hospital.

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT06286189 Recruiting
Obstructive Sleep Apnea
Brigham and Women''s Hospital
2024-01-01 Phase 1|Phase 2
NCT02086929 Completed
Major Depressive Disorder
Aziende Chimiche Riunite Angelini Francesco S.p.A
2012-12 Phase 3
NCT01097980 Completed
Sexual Dysfunction
Beitou Armed Forces Hospital Taipei Taiwan
2010-04 Not Applicable

(data from https://clinicaltrials.gov, updated on 2024-05-22)

Check the Trazodone HCl product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Compliance for Clinical Use

Mechanism and Biochemical Profile

Trazodone hydrochloride acts predominantly as a serotonin receptor antagonist, binding target receptors such as 5-HT2A with a Ki of 13 nM to block downstream serotonergic signaling pathways. This inhibition reduces central neuronal excitability and alters neurotransmitter dynamics, providing clinical relevance in the management of major depressive disorder, obstructive sleep apnea, and anxiety.

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.