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Tardive Dyskinesia (TD)Phase 4NCT03698331

The Potential for Clinical Dependence and Withdrawal Symptoms Associated With Valbenazine

A Phase 4 study testing Valbenazine in people with Tardive Dyskinesia (TD), run by Neurocrine Biosciences at 17 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Tardive Dyskinesia (TD)
What is being tested?
Valbenazine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
89 participants
Where
17 sitesin 2 countries
Study dates
14 Sep 2018to 3 Apr 2019
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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.

Who cannot join

  • 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).
Show all 12Show fewer
  • 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.

Trial locations and contacts

17 sites in 2 countries.

17 sites in 2 countries

United States16 sites
  • Neurocrine Clinical Site

    Anaheim, California, 92804

  • Neurocrine Clinical Site

    Ann Arbor, Michigan, 48105

  • Neurocrine Clinical Site

    Beechwood, Ohio, 44122

  • Neurocrine Clinical Site

    DeSoto, Texas, 75115

  • Neurocrine Clinical Site

    Fort Wayne, Indiana, 46804

  • Neurocrine Clinical Site

    Glendale, California, 91206

  • Neurocrine Clinical Site

    Hialeah, Florida, 33012

  • Neurocrine Clinical Site

    Hialeah, Florida, 33013

  • Neurocrine Clinical Site

    Hialeah, Florida, 33018

  • Neurocrine Clinical Site

    Honolulu, Hawaii, 96817

  • Neurocrine Clinical Site

    Irving, Texas, 75062

  • Neurocrine Clinical Site

    Norwalk, California, 90650

  • Neurocrine Clinical Site

    Oceanside, California, 92054

  • Neurocrine Clinical Site

    Oklahoma City, Oklahoma, 73112

  • Neurocrine Clinical Site

    San Bernardino, California, 92108

  • Neurocrine Clinical Site

    Scranton, Pennsylvania, 18503

Other trials in United States

Puerto Rico1 site
  • Neurocrine Clinical Site

    San Juan, 00926

Other trials in Puerto Rico

About this study

Official title: A Phase 4, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Potential for Clinical Dependence and Withdrawal Symptoms Associated With Valbenazine

This is a Phase 4, randomized, double-blind, placebo-controlled study to evaluate the potential for clinical dependence and withdrawal symptoms associated with valbenazine.

Being tested
Valbenazine, Placebo oral capsule
Medical subject headings
Tardive Dyskinesia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ValbenazineDrug

    Also called Ingrezza, NBI-98854

    vesicular monoamine transporter 2 (VMAT2) inhibitor

  • Placebo oral capsuleDrug

    non-active dosage form

Study groups in NCT03698331
Study groupRoleWhat they receive
ValbenazineExperimentalValbenazine or placebo oral capsules administered once daily for 7 weeks.
Receives: Drug: Valbenazine; Drug: Placebo oral capsule
PlaceboPlacebo comparatorPlacebo oral capsules administered once daily for 7 weeks.
Receives: Drug: Placebo oral capsule

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Participants With Withdrawal-Emergent Adverse Events

    A withdrawal-emergent adverse event is an adverse event that begins during the Withdrawal Period.

    Measured: 3 weeks

Secondary outcomes (5)
  1. Participants Who Experience Worsening of Symptoms as Measured by the Physician Withdrawal Checklist-20 (PWC-20)

    The PWC-20 is a validated 20-item physician-rated survey that assesses the severity of potential symptoms of withdrawal. Items are rated on a scale from 0 to 3, with total scores ranging from 0 to 60. Worsening of symptoms is defined by 5 new symptoms of moderate or severe degree or a worsening of symptoms by 2 points on the PWC-20 scale during Weeks 5 to 7 compared with Week 4. Note: a 2-point worsening from 0 (none) at Week 4 to 2 (moderate) post-Week 4 is counted as a worsening of symptoms.

    Measured: 3 weeks

  2. Absolute Worst Total Score as Measured by the Physician Withdrawal Checklist-20 (PWC-20)

    The PWC-20 is a validated 20-item physician-rated survey that assesses the severity of potential symptoms of withdrawal. Items are rated on a scale from 0 to 3, with total scores ranging from 0 to 60. Larger values indicate more severe symptoms. Rickels et al (J Clin Psychopharmacol 2008) cites PWC-20 mean scores associated with withdrawal in the range of 15 to 24.

    Measured: 3 weeks

  3. 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)

    The mCSSA is an 18-item survey based on symptoms commonly associated with early cocaine abstinence, including depression, fatigue, anhedonia, anxiety, irritability, sleep disturbance, and inability to concentrate. Items are rated on scales of 0 to 7 or 0 to 8, with separate scale descriptions for each item. Larger values indicate more severe symptoms. The scale has been modified to be specific to study drug (valbenazine or placebo) instead of cocaine.

    Measured: 7 weeks

  4. Overall Improvement From Baseline of TD Symptoms as Measured by the Clinical Global Impression-Tardive Dyskinesia-Improvement (CGI-TD-I) Score

    The CGI-TD-I scale is a 7-point scale (range; 1=very much improved to 7=very much worse) used to assess overall improvement in TD symptoms since the initiation of study drug dosing.

    Measured: Baseline, Week 4, Week 7

  5. Change in Severity of TD Symptoms as Measured by Change From Baseline in the Clinical Global Impression-Tardive Dyskinesia-Severity (CGI-TD-S) Scale

    The CGI-TD-S scale is a 7-point scale (range; 1=normal, not at all ill to 7=among the most extremely ill patient) used to assess the overall global severity of TD.

    Measured: Baseline, Week 4, Week 7

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Oct 2018
  2. Study start14 Sep 2018
  3. Primary completion3 Apr 2019
  4. Study completion3 Apr 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
89 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03698331
Sponsor's protocol ID
NBI-98854-TD4001
Status last verified
May 2020
First submitted
4 Oct 2018
Last updated
4 Jun 2020
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Valbenazine in people with Tardive Dyskinesia (TD), run by Neurocrine Biosciences at 17 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Jun 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 17 sites in United States, Puerto Rico. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 4 Jun 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Participants With Withdrawal-Emergent Adverse Events (time frame: 3 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Jun 2020.

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