NBI-98854 for the Treatment of Tardive Dyskinesia in Subjects With Schizophrenia or Schizoaffective Disorder (KINECT Study)
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ClinicalTrials.gov Identifier: NCT01688037 |
Recruitment Status :
Completed
First Posted : September 19, 2012
Results First Posted : November 8, 2017
Last Update Posted : November 8, 2017
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Condition or disease | Intervention/treatment | Phase |
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Tardive Dyskinesia | Drug: NBI-98854 Drug: Placebo | Phase 2 |
This is a Phase 2, multicenter, randomized, double-blind, placebo-controlled, parallel group study to evaluate the efficacy, safety, and tolerability of two doses (50 and 100 mg) of NBI-98854 administered once daily for up to 2 weeks. The study will also allow for an evaluation of the efficacy of NBI-98854 50 mg once daily for up to 6 weeks and the safety and tolerability of NBI 98854 50 mg once daily for up to 12 weeks.
The double-blind placebo-controlled treatment period the study has three arms:
- NBI-98854 50 mg once daily for 6 weeks
- NBI-98854 100 mg once daily for 2 weeks followed by 50 mg once daily for the remaining 4 weeks
- placebo
At the end of the 6-week placebo-controlled double-blind treatment period, subjects will continue in the study for an additional 6-week open-label period where all subjects who have completed the double-blind treatment period will receive NBI-98854 50 mg once daily. Two and four weeks after the last dose of study drug, follow-up assessments will be performed.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 109 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Phase 2, Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy and Safety of NBI-98854 for the Treatment of Tardive Dyskinesia in Subjects With Schizophrenia or Schizoaffective Disorder |
Study Start Date : | September 2012 |
Actual Primary Completion Date : | September 2013 |
Actual Study Completion Date : | October 2013 |

Arm | Intervention/treatment |
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Experimental: NBI-98854 50 mg
NBI-98854 50 mg administered as two (2) 25 mg capsules by mouth, taken every morning between 7:00am - 10:00am for 6 weeks.
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Drug: NBI-98854
25 mg capsule |
Experimental: NBI-98854 100 mg and 50 mg
NBI-98854 100 mg administered as two (2) 50 mg capsules taken every morning between 7:00am - 10:00am for 2 weeks. After 2 weeks, NBI-98854 50 mg administered by two (2) 25 mg capsules by mouth, taken every morning between 7:00am - 10:00am for remaining 4 weeks.
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Drug: NBI-98854
25 mg capsule Drug: NBI-98854 50 mg capsule |
Placebo Comparator: Placebo
Capsule containing no active substance, manufactured to mimic NBI-98854 25 mg and 50 mg capsules.
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Drug: Placebo |
- Abnormal Involuntary Movement Scale (AIMS) Dyskinesia Total Score Change From Baseline at Week 6 [ Time Frame: Baseline and Week 6 ]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. The primary efficacy endpoint was the change from baseline in the AIMS dyskinesia total score at Week 6 between the pooled NBI-98854 50+100 mg group and placebo group analyzed using the ANCOVA model (LOCF, ITT analysis set).
- Clinical Global Impression - Global Improvement of TD (CGI-TD) [ Time Frame: Week 6 ]Clinician'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). The ANOVA analysis of CGI-TD was conducted for the pooled NBI-98854 50+100 mg group and placebo group.
- Clinical Global Impression - Global Improvement of TD (CGI-TD) at Week 2 [ Time Frame: Week 2 ]Clinician'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).

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Ages Eligible for Study: | 18 Years to 85 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Have a clinical diagnosis of schizophrenia or schizoaffective disorder and a clinical diagnosis of neuroleptic-induced tardive dyskinesia for at least 3 months prior to screening.
- Be receiving a stable dose of antipsychotic medication for a minimum of 30 days before study start. Subjects who are not using antipsychotic medication must have stable psychiatric status.
- Have the doses of concurrent medications and the conditions being treated be stable for a minimum of 30 days before study start and be expected to remain stable during the study.
- Subjects of childbearing potential must agree to use hormonal or two forms of nonhormonal birth control during the study.
- Female subjects must not be pregnant.
- Be in good general health and expected to complete the clinical study as designed.
- Have a body mass index (BMI) of 18 to 38 kg/m2 (both inclusive).
- Have a negative urine drug screen (negative for amphetamines, barbiturates, benzodiazepine, phencyclidine, cocaine, opiates, or cannabinoids) at screening and study start, except for any subject receiving a stable dose of benzodiazepine.
- Have a negative alcohol breath test at screening and study start.
Exclusion Criteria:
- Have an active clinically significant unstable medical condition within 1 month (30 days) prior to screening.
- Have a history of substance dependence or substance (drug) or alcohol abuse within the 3 months before study start(nicotine and caffeine dependence are not exclusionary).
- Have a known history of neuroleptic malignant syndrome.
- Have a significant risk of suicidal or violent behavior.
- Receiving any excluded concomitant medication such as reserpine, metoclopramide, stimulants, or tetrabenazine.
- Receiving medication for the treatment of tardive dyskinesia.
- Have a positive human immunodeficiency virus antibody, (HIV-Ab), hepatitis B surface antigen (HBsAg), or hepatitis C virus (HCV) antibody result at screening or have a history of positive result.
- 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 an allergy, hypersensitivity, or intolerance to tetrabenazine.
- Have had previous exposure with NBI-98854.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01688037

Study Director: | Chris O'Brien, MD | Neurocrine Biosciences |
Responsible Party: | Neurocrine Biosciences |
ClinicalTrials.gov Identifier: | NCT01688037 |
Other Study ID Numbers: |
NBI-98854-1201 |
First Posted: | September 19, 2012 Key Record Dates |
Results First Posted: | November 8, 2017 |
Last Update Posted: | November 8, 2017 |
Last Verified: | October 2017 |
Dyskinesias Tardive Dyskinesia Schizophrenia Psychotic Disorders Schizophrenia Spectrum and Other Psychotic Disorders Mental Disorders Movement Disorders Central Nervous System Diseases Nervous System Diseases Neurologic Manifestations |
Dyskinesia, Drug-Induced Tetrabenazine Adrenergic Uptake Inhibitors Neurotransmitter Uptake Inhibitors Membrane Transport Modulators Molecular Mechanisms of Pharmacological Action Adrenergic Agents Neurotransmitter Agents Physiological Effects of Drugs |