The Potential for Clinical Dependence and Withdrawal Symptoms Associated With Valbenazine
A Phase 4, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Potential for Clinical Dependence and Withdrawal Symptoms Associated With Valbenazine
1 other identifier
interventional
89
2 countries
17
Brief Summary
This is a Phase 4, randomized, double-blind, placebo-controlled study to evaluate the potential for clinical dependence and withdrawal symptoms associated with valbenazine.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_4
Started Sep 2018
Shorter than P25 for phase_4
17 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 14, 2018
CompletedFirst Submitted
Initial submission to the registry
October 4, 2018
CompletedFirst Posted
Study publicly available on registry
October 9, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 3, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
April 3, 2019
CompletedResults Posted
Study results publicly available
June 4, 2020
CompletedJune 4, 2020
May 1, 2020
7 months
October 4, 2018
May 1, 2020
May 27, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
Participants With Withdrawal-Emergent Adverse Events
A withdrawal-emergent adverse event is an adverse event that begins during the Withdrawal Period.
3 weeks
Secondary Outcomes (5)
Participants Who Experience Worsening of Symptoms as Measured by the Physician Withdrawal Checklist-20 (PWC-20)
3 weeks
Absolute Worst Total Score as Measured by the Physician Withdrawal Checklist-20 (PWC-20)
3 weeks
Severity of Withdrawal Symptoms as Measured by the Change From Withdrawal Baseline (Week 4) to Week 7 in the Modified Cocaine Selective Severity Assessment (mCSSA)
7 weeks
Overall Improvement From Baseline of TD Symptoms as Measured by the Clinical Global Impression-Tardive Dyskinesia-Improvement (CGI-TD-I) Score
Baseline, Week 4, Week 7
Change in Severity of TD Symptoms as Measured by Change From Baseline in the Clinical Global Impression-Tardive Dyskinesia-Severity (CGI-TD-S) Scale
Baseline, Week 4, Week 7
Study Arms (2)
Valbenazine
EXPERIMENTALValbenazine or placebo oral capsules administered once daily for 7 weeks.
Placebo
PLACEBO COMPARATORPlacebo oral capsules administered once daily for 7 weeks.
Interventions
vesicular monoamine transporter 2 (VMAT2) inhibitor
Eligibility Criteria
You may qualify if:
- Subjects of childbearing potential must agree to use hormonal or two forms of nonhormonal contraception (dual contraception) consistently during the screening, treatment, and follow-up periods of the study.
- Have one of the following clinical diagnoses for at least 3 months before screening: Schizophrenia, Schizoaffective Disorder, or Mood Disorder
- Have a clinical diagnosis of neuroleptic-induced TD for at least 3 months before screening.
- Be on stable doses if using maintenance medication(s) for schizophrenia or schizoaffective disorder, or mood disorder. Subjects with bipolar disorder must be on stable doses of a mood stabilizer.
- Be in general good health.
- Have adequate hearing, vision, and language skills to perform the procedures specified in the protocol.
You may not qualify if:
- Have an active, clinically significant unstable medical condition within 1 month before screening.
- Have a known history of substance (drug) dependence, or substance or alcohol abuse.
- Have a significant risk of suicidal or violent behavior.
- Have a known history of neuroleptic malignant syndrome.
- Have a known history of long QT syndrome or cardiac arrhythmia.
- Have a cancer diagnosis within 3 years prior to screening (some exceptions allowed).
- Have ever taken valbenazine (INGREZZA or NBI-98854) or participated in a valbenazine clinical study.
- Have received an investigational drug within 30 days before screening or plan to use an investigational drug (other than NBI-98854) during the study.
- Have a blood loss ≥550 mL or donated blood within 30 days prior to Baseline.
- Have an allergy, hypersensitivity, or intolerance to VMAT2 inhibitors (eg, tetrabenazine, deutetrabenazine).
- Are currently pregnant or breastfeeding.
- Have HIV or hepatitis B.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (17)
Neurocrine Clinical Site
Anaheim, California, 92804, United States
Neurocrine Clinical Site
Glendale, California, 91206, United States
Neurocrine Clinical Site
Norwalk, California, 90650, United States
Neurocrine Clinical Site
Oceanside, California, 92054, United States
Neurocrine Clinical Site
San Bernardino, California, 92108, United States
Neurocrine Clinical Site
Hialeah, Florida, 33012, United States
Neurocrine Clinical Site
Hialeah, Florida, 33013, United States
Neurocrine Clinical Site
Hialeah, Florida, 33018, United States
Neurocrine Clinical Site
Honolulu, Hawaii, 96817, United States
Neurocrine Clinical Site
Fort Wayne, Indiana, 46804, United States
Neurocrine Clinical Site
Ann Arbor, Michigan, 48105, United States
Neurocrine Clinical Site
Beechwood, Ohio, 44122, United States
Neurocrine Clinical Site
Oklahoma City, Oklahoma, 73112, United States
Neurocrine Clinical Site
Scranton, Pennsylvania, 18503, United States
Neurocrine Clinical Site
DeSoto, Texas, 75115, United States
Neurocrine Clinical Site
Irving, Texas, 75062, United States
Neurocrine Clinical Site
San Juan, 00926, Puerto Rico
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Neurocrine Medical Information
- Organization
- Neurocrine Biosciences, Inc.
Study Officials
- STUDY DIRECTOR
Chief Medical Officer
Chief Medical Officer
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 4, 2018
First Posted
October 9, 2018
Study Start
September 14, 2018
Primary Completion
April 3, 2019
Study Completion
April 3, 2019
Last Updated
June 4, 2020
Results First Posted
June 4, 2020
Record last verified: 2020-05
Data Sharing
- IPD Sharing
- Will not share