Efficacy and Safety of NBI-98854 in Subjects With Tardive Dyskinesia

A Phase 2, Open-Label, Dose Titration Study to Evaluate the Efficacy and Safety of NBI-98854 for the Treatment of Tardive Dyskinesia in Subjects With Schizophrenia or Schizoaffective Disorder

The purpose of this study is to assess the safety and efficacy of three doses (12.5, 25, and 50 mg) of NBI-98854 for the treatment of the symptoms of tardive dyskinesia (TD) in subjects with schizophrenia or schizoaffective disorder.

Study Overview

• Status: Completed
• Conditions: Tardive Dyskinesia
• Intervention / Treatment: Drug: NBI-98854

Detailed Description

This is a Phase 2, open-label, dose titration study to assess the efficacy and safety of three once daily (q.d.) doses (12.5, 25, and 50 mg) of NBI-98854 administered once daily for up to 12 days consisting of three treatment periods of 4 days each (Periods 1, 2, and 3). The starting dose will be 12.5 mg q.d. (Period 1), and this dose will be escalated to 25 mg q.d. (Period 2) and then to 50 mg q.d. (Period 3) based upon each subject's ability to tolerate NBI-98854. Progression to the next dose level will be based upon the subject's ability to tolerate the previous dose and the Investigator's review of adverse events and safety data. For subjects who do not tolerate a dose increase, the dose may be decreased to the dose that was previously administered (i.e., 25 mg to 12.5 mg, 50 mg to 25 mg) and continued at that dose for the remainder of the study treatment. Up to 10 medically stable subjects with schizophrenia or schizoaffective disorder who have moderate or severe symptoms of TD will be enrolled as outpatients.

• Study Type: Interventional
• Enrollment (Anticipated): 10
• Phase: Phase 2

Contacts and Locations

Study Locations

• Canada
  • Ontario
    • Toronto, Ontario, Canada, M5T 1R8

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Males or females (non-childbearing potential) aged 18 to 65 years (both inclusive).
• Have moderate or severe Tardive Dyskinesia symptoms (Total AIMS score of at least 9)
• Have a clinical diagnosis of schizophrenia or schizoaffective disorder.
• Receiving a stable dose of antipsychotic medication for a minimum of 30 days or have stable psychiatric status.
• Doses of concurrent medications and the conditions being treated have been stable for a minimum of 30 days and expected to remain stable during the study.
• Are in good general health and expected to complete the clinical study as designed.
• Have a body mass index (BMI) of 18 to 38 kg/m^2.
• Have adequate hearing, vision, and language skills to perform the procedures specified in the protocol.

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.
• Have a known history of neuroleptic malignant syndrome.
• Have a significant risk of suicidal or violent behavior.
• Receiving medication for the treatment of Tardive Dyskinesia
• Receiving any excluded concomitant medication as specified in the protocol.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: TREATMENT
• Allocation: NON_RANDOMIZED
• Interventional Model: SINGLE_GROUP
• Masking: NONE

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
EXPERIMENTAL: NBI-98854; Open-label, dose titration of active drug	Drug: NBI-98854; powder in bottle, prepared doses at 12.5, 25, and 50 mg q.d. administered for up to 12 days consisting of three treatment periods of 4 days each

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Assessment of Tardive Dyskinesia symptoms	Abnormal Involuntary Movements Scale (AIMS) and Clinical Global Impression - Global Improvement of TD (CGI-TD) scale	19 days

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of Participants with Adverse Events following dosing with NBI-98854	Outcome assessment includes monitoring of: Adverse events; Clinical laboratory tests; Vital signs; Physical examinations; 12-lead electrocardiogram (ECG)	19 days
Evaluate pharmacokinetics of three doses of NBI-98854	Blood samples will be collected and analyzed to evaluate drug and metabolite plasma concentrations.	19 days

Collaborators and Investigators

• Sponsor: Neurocrine Biosciences

Study record dates

Study Major Dates

• Study Start: January 1, 2011
• Primary Completion (ACTUAL): March 1, 2011
• Study Completion (ACTUAL): March 1, 2011

Study Registration Dates

• First Submitted: December 21, 2010
• First Submitted That Met QC Criteria: December 23, 2010
• First Posted (ESTIMATE): December 28, 2010

Study Record Updates

• Last Update Posted (ESTIMATE): April 20, 2011
• Last Update Submitted That Met QC Criteria: April 18, 2011
• Last Verified: April 1, 2011

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Central Nervous System Diseases; Nervous System Diseases; Neurologic Manifestations; Movement Disorders; Dyskinesia, Drug-Induced; Dyskinesias; Tardive Dyskinesia
• Other Study ID Numbers: NBI-98854-1001