Clinical Trials

Multiple clinical trials have evaluated thioridazine across diverse indications, including acute myeloid leukemia, healthy subjects, and psychiatric conditions such as schizophrenia, anxiety, depression, and dementia. Ranging from Early Phase I through Phase IV, these investigations were sponsored by academic medical centers, collaborative groups, and industry entities. Reported recruitment statuses include completed studies, such as a Phase I trial combining thioridazine with cytarabine in acute myeloid leukemia, alongside terminated evaluations like a gerontopsychiatric pharmacovigilance study.

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT02374567 TERMINATED
Dementia; Depression; Schizophrenia; Psychosomatic Disorders; Anxiety Disorders
Hannover Medical School
2015-01 PHASE3
NCT02096289 COMPLETED
Acute Myeloid Leukemia
Ontario Clinical Oncology Group (OCOG)
2014-07 PHASE1
NCT02307396 COMPLETED
Schizophrenia; Schizophrenia and Disorders With Psychotic Features; Schizoaffective Disorders
Technical University of Munich
2015-02-01 PHASE4
NCT01765803 TERMINATED
Healthy Subjects
New Mexico Cancer Research Alliance
2013-06 EARLY_PHASE1

(data from https://clinicaltrials.gov, updated on 2018-02-28)

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

Compliance for Clinical Use

Mechanism and Biochemical Profile

Thioridazine functions by selectively binding to central dopamine D2 receptors, which blocks downstream G-protein-coupled signaling pathways and alters intracellular second messenger cascades. This signaling inhibition reduces neuronal hyper-excitability and suppresses leukemic stem cell viability, thereby attenuating psychotic manifestations in schizophrenia and providing therapeutic potential in acute myeloid leukemia.

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.