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Trial · NCT01393600

NBI-98854 for the Treatment of Tardive Dyskinesia in Subjects With Schizophrenia or Schizoaffective Disorder

NCT01393600, Phase 2, Completed, Neurocrine Biosciences; results first posted 2017-08-10

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. NBI-98854 for the Treatment of Tardive Dyskinesia in Subjects With Schizophrenia or Schizoaffective Disorder. Trials, record NCT01393600. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01393600

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
NBI-98854 for the Treatment of Tardive Dyskinesia in Subjects With Schizophrenia or Schizoaffective Disorder
NCT number
NCT01393600
Status
Completed
Phases
Phase 2
Enrollment
37 participants, actual
Lead sponsor
Neurocrine Biosciences
Conditions
Tardive Dyskinesia
Interventions
NBI-98854, NBI-98854, Placebo
First posted
2011-07-13
Last updated
2017-08-10
Results first posted
2017-08-10

Source ClinicalTrials.gov

Registered outcomes2

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryAbnormal Involuntary Movement Scale (AIMS) Dyskinesia Total ScoreDay 15 and 29, averaged
Severity of TD symptoms assessed by AIMS dyskinesia total score (sum of items 1 through 7), as assessed by blinded central AIMS video raters. The AIMS Total Dyskinesia Score rates a total of 7 items, rating involuntary movement from 0 (no dyskinesia) to 4 (severe dyskinesia). Items 1 through 7 include facial and oral movements (Items 1-4), extremity movements (Items 5-6), and trunk movements (Item 7). The AIMS dyskinesia total score for Items 1-7 ranges from 0 to 28; a higher score reflects increased severity.
SecondaryClinical Global Impression - Global Improvement of TD (CGI-TD)Day 15 and 29, averagedClinician's perspective of the participant's overall improvement of TD symptoms over time. The CGI-TD is based on a 7-point scale (range: 1=very much improved to 7=very much worse).

Outcomes3

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYAbnormal Involuntary Movement Scale (AIMS) Dyskinesia Total ScoreDay 15 and 29, averagedIntent to treat (ITT) analysis set (all subjects who received at least 8 doses of study drug during Treatment Period 1 and had an AIMS dyskinesia total score value for Day 15).units on a scaleLEAST_SQUARES_MEAN
SECONDARYClinical Global Impression - Global Improvement of TD (CGI-TD)Day 15 and 29, averagedIntent to treat (ITT) analysis set (all subjects who received at least 8 doses of study drug during Treatment Period 1 and had an AIMS dyskinesia total score value for Day 15).units on a scaleMEAN
POST_HOCAbnormal Involuntary Movement Scale (AIMS) Dyskinesia Total Score for Combined NBI-98854 Dose Groups (Excluding 1 Site)Day 15 and 29, averagedIntent to treat (ITT) analysis set (all subjects who received at least 8 doses of study drug during Treatment Period 1 and had an AIMS dyskinesia total score value for Day 15).units on a scaleLEAST_SQUARES_MEAN

Results by group10

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Abnormal Involuntary Movement Scale (AIMS) Dyskinesia Total ScorePlacebo9.9Standard Error 0.7units on a scale
Abnormal Involuntary Movement Scale (AIMS) Dyskinesia Total ScoreValbenazine 12.5 mg9.1Standard Error 1.2units on a scale
Abnormal Involuntary Movement Scale (AIMS) Dyskinesia Total ScoreValbenazine 50 mg8.8Standard Error 1.2units on a scale
Clinical Global Impression - Global Improvement of TD (CGI-TD)Valbenazine 12.5mg Placebo2.2Standard Error 0.2units on a scale
Clinical Global Impression - Global Improvement of TD (CGI-TD)Valbenazine 12.5mg2.2Standard Error 0.2units on a scale
Clinical Global Impression - Global Improvement of TD (CGI-TD)Valbenazine 50mg Placebo3.2Standard Error 0.3units on a scale
Clinical Global Impression - Global Improvement of TD (CGI-TD)Valbenazine 50mg2.6Standard Error 0.3units on a scale
Abnormal Involuntary Movement Scale (AIMS) Dyskinesia Total Score for Combined NBI-98854 Dose Groups (Excluding 1 Site)Placebo10.3Standard Error 0.9units on a scale
Abnormal Involuntary Movement Scale (AIMS) Dyskinesia Total Score for Combined NBI-98854 Dose Groups (Excluding 1 Site)Valbenazine 12.5 mg9.9Standard Error 1.1units on a scale
Abnormal Involuntary Movement Scale (AIMS) Dyskinesia Total Score for Combined NBI-98854 Dose Groups (Excluding 1 Site)Valbenazine 50 mg6.1Standard Error 1.2units on a scale

Participant flow36

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Treatment Period 1 (Day 1 to 14)STARTEDPlacebo, Then Valbenazine 12.5 mg9
Treatment Period 1 (Day 1 to 14)STARTEDValbenazine 12.5 mg, Then Placebo8
Treatment Period 1 (Day 1 to 14)STARTEDPlacebo, Then Valbenazine 50 mg10
Treatment Period 1 (Day 1 to 14)STARTEDValbenazine 50 mg, Then Placebo10
Treatment Period 1 (Day 1 to 14)COMPLETEDPlacebo, Then Valbenazine 12.5 mg9
Treatment Period 1 (Day 1 to 14)COMPLETEDValbenazine 12.5 mg, Then Placebo7
Treatment Period 1 (Day 1 to 14)COMPLETEDPlacebo, Then Valbenazine 50 mg9
Treatment Period 1 (Day 1 to 14)COMPLETEDValbenazine 50 mg, Then Placebo9
Treatment Period 1 (Day 1 to 14)NOT COMPLETEDPlacebo, Then Valbenazine 12.5 mg0
Treatment Period 1 (Day 1 to 14)NOT COMPLETEDValbenazine 12.5 mg, Then Placebo1

Adverse events57

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherVision blurredEye disordersPlacebo0350
otherVision blurredEye disordersNBI-98854 12.5 mg0170
otherVision blurredEye disordersNBI-98854 50 mg1191
otherDiarrhoeaGastrointestinal disordersPlacebo2354
otherDiarrhoeaGastrointestinal disordersNBI-98854 12.5 mg1171
otherDiarrhoeaGastrointestinal disordersNBI-98854 50 mg0190
otherVomitingGastrointestinal disordersPlacebo0350
otherVomitingGastrointestinal disordersNBI-98854 12.5 mg1171
otherVomitingGastrointestinal disordersNBI-98854 50 mg0190
otherFatigueGeneral disordersPlacebo2352

Adverse event totals9

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPlacebo035
Total, all-cause mortalityNBI-98854 12.5 mg017
Total, all-cause mortalityNBI-98854 50 mg019
Total, other adverse eventsPlacebo435
Total, other adverse eventsNBI-98854 12.5 mg417
Total, other adverse eventsNBI-98854 50 mg619
Total, serious adverse eventsPlacebo035
Total, serious adverse eventsNBI-98854 12.5 mg117
Total, serious adverse eventsNBI-98854 50 mg019

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

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The record and each of its lists are JSON, twenty rows a page. No key.

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