Numerous clinical trials evaluate valbenazine across Phase 1 through Phase 4 to assess its efficacy and safety in tardive dyskinesia, Tourette syndrome, Huntington's disease chorea, cervical dystonia, and as adjunctive treatment for schizophrenia, bipolar disorder, major depressive disorder, and obsessive-compulsive disorder. Sponsored by industry leaders such as Neurocrine Biosciences alongside academic institutions including Yale University, the University of Chicago, and Virginia Commonwealth University, these studies report varying recruitment statuses, including completed, currently recruiting, terminated, withdrawn, and enrolling by invitation.
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
|---|---|---|---|---|---|
| NCT06312189 | ENROLLING_BY_INVITATION | Chorea, Huntington |
Neurocrine Biosciences |
2024-04-24 | PHASE3 |
| NCT07111988 | NOT_YET_RECRUITING | Obsessive-Compulsive Disorder |
University of Chicago |
2026-06 | PHASE2 |
| NCT06771323 | RECRUITING | Cervical Dystonia |
Virginia Commonwealth University |
2024-12-17 | PHASE2 |
| NCT05207085 | RECRUITING | Trichotillomania (Hair-Pulling Disorder) |
Yale University |
2024-02-02 | PHASE2 |
| NCT07105111 | RECRUITING | Schizophrenia; Schizoaffective Disorder; Bipolar Disorder; Major Depressive Disorder; Tardive Dyskinesia |
Neurocrine Biosciences |
2025-08-29 | PHASE4 |
| NCT06107829 | WITHDRAWN | Tardive Dyskinesia; Intellectual Disability; Developmental Disabilities |
Stephen Ruedrich |
2025-01 | PHASE4 |
| NCT04400331 | COMPLETED | Chorea, Huntington |
Neurocrine Biosciences |
2020-09-18 | PHASE3 |
| NCT05053321 | WITHDRAWN | Tardive Dyskinesia |
Yale University |
2024-10-18 | PHASE1 |
| NCT05206513 | COMPLETED | Dyskinesia; Cerebral Palsy |
Neurocrine Biosciences |
2022-04-15 | PHASE3 |
| NCT05110157 | COMPLETED | Schizophrenia |
Neurocrine Biosciences |
2021-11-29 | PHASE3 |
| NCT05859698 | COMPLETED | Schizophrenia; Schizoaffective Disorder; Bipolar Disorder; Major Depressive Disorder; Tardive Dyskinesia |
Neurocrine Biosciences |
2023-05-09 | PHASE4 |
| NCT05654870 | TERMINATED | Schizophrenia |
Neurocrine Biosciences |
2023-01-05 | PHASE3 |
| NCT05157100 | COMPLETED | Cervical Dystonia |
The Orthopedic Foundation |
2021-10-19 | PHASE4 |
| NCT04102579 | COMPLETED | Chorea, Huntington |
Neurocrine Biosciences |
2019-11-13 | PHASE3 |
| NCT03891862 | COMPLETED | Tardive Dyskinesia (TD) |
Neurocrine Biosciences |
2019-03-18 | PHASE4 |
| NCT03530293 | TERMINATED | Tourette Syndrome |
Neurocrine Biosciences |
2018-04-17 | PHASE2 |
| NCT03444038 | COMPLETED | Tourette Syndrome |
Neurocrine Biosciences |
2018-02-08 | PHASE2 |
| NCT03698331 | COMPLETED | Tardive Dyskinesia (TD) |
Neurocrine Biosciences |
2018-09-14 | PHASE4 |
| NCT03325010 | COMPLETED | Tourette Syndrome |
Neurocrine Biosciences |
2017-10-05 | PHASE2 |
| NCT02879578 | COMPLETED | Tourette Syndrome |
Neurocrine Biosciences |
2016-07-25 | PHASE2 |
| NCT02736955 | COMPLETED | Tardive Dyskinesia |
Neurocrine Biosciences |
2016-06-13 | PHASE3 |
(data from https://clinicaltrials.gov, updated on 2026-06-18)
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>).