Safety and Efficacy Study of NBI-98854 in Adults With Tourette Syndrome

Tourette Syndrome Clinical Trial

Official title:

A Randomized, Double-Blind, Placebo-Controlled Study to Assess the Safety and Efficacy of NBI-98854 in Adult Subjects With Tourette Syndrome

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02581865
• Other study ID #: NBI-98854-1505
• Status: Completed
• Phase: Phase 2
• Start date: November 2015
• Est. completion date: December 2016

Study information

• Verified date: April 2020
• Source: Neurocrine Biosciences
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Phase 2, double-blind, placebo-controlled study to assess the safety and efficacy of NBI-98854 administered once daily (qd) for a total of 8 weeks of treatment. This study will enroll approximately 90 male and female subjects clinically diagnosed with Tourette Syndrome.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 124
• Est. completion date: December 2016
• Est. primary completion date: December 2016
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 64 Years

Eligibility

Inclusion Criteria:

1. Have a clinical diagnosis of Tourette Syndrome (TS)

2. Have at least moderate tic severity

3. Have TS symptoms that impair school, occupational, and/or social function

4. If using maintenance medication(s) for TS or TS spectrum diagnoses (e.g. obsessive-compulsive disorder [OCD], Attention-Deficit Hyperactivity Disorder [ADHD]), be on stable doses

5. Be in good general health

6. Have a negative urine drug screen for amphetamines, barbiturates, benzodiazepine, phencyclidine, cocaine, or opiates, and a negative alcohol screen

7. Subjects of childbearing potential who do not practice total abstinence 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

Exclusion Criteria:

1. Have an active, clinically significant unstable medical condition within 1 month prior to screening

2. Have a known history of long QT syndrome or cardiac tachy-arrhythmia

3. Have a known history of neuroleptic malignant syndrome

4. Have a cancer diagnosis within 3 years prior to screening (some exceptions allowed)

5. Have an allergy, hypersensitivity, or intolerance to VMAT2 inhibitors

6. Have a known history of substance dependence, substance (drug) or alcohol abuse

7. Have a significant risk of suicidal or violent behavior

8. Are currently pregnant or breastfeeding

9. Have initiated Comprehensive Behavioral Intervention for Tics (CBIT) during the screening period or at baseline or plan to initiate CBIT during the study

10. Have received an investigational drug within 30 days before screening or plan to use an investigational drug (other than NBI-98854) during the study

11. Have a blood loss =550 mL or donated blood within 30 days prior to screening

Related Conditions & MeSH terms

• Syndrome
• Tourette Syndrome

Intervention

Drug:
• NBI-98854

• Placebo

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Neurocrine Biosciences

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change From Baseline to Week 8 in the YGTSS TTS	The YGTSS is designed to rate the overall severity of motor and phonic tic symptoms across a range of dimensions: number, frequency, intensity, complexity, and interference. The YGTSS was administered by the investigator (or qualified designee) using a computer-based structured clinical interview. The TTS is the sum of the 5 motor tic items and the 5 phonic (vocal) tic items and ranges from 0 to 50, with higher scores representing greater severity	Baseline, Week 8
Secondary	Clinical Global Impression of Change Tourette Syndrome (CGI-TS)-Improvement Score at Week 8	The CGI-TS-Improvement scale is used to assess overall improvement since the initiation of study drug dosing on a 7-point scale. Each of the CGI-TS-Improvement response categories was assigned a numerical score as follows: 1 = Very much improved; 2 = Much improved; 3 = Minimally improved; 4 = Not changed; 5 = Minimally worse; 6 = Much worse; 7 = Very much worse.	Week 8
Secondary	Change From Baseline to Week 8 in the Clinical Global Impression of Tics (CGI-Tics)-Severity Score	The CGI-Tics-Severity scale is used to assess overall severity on a 7-point scale. Each of the CGI-Tics-Severity response categories was assigned a numerical score as follows: 1 = Normal, not at all ill; 2 = Borderline ill; 3 = Mildly ill; 4 = Moderately ill; 5 = Markedly ill; 6 = Severely ill; 7 = Among the most extremely ill patient.	Baseline, Week 8
Secondary	Change From Baseline to Last Visit in the Rush Video-based Tic Rating Scale (RTRS) Total Score	A modified RTRS was used in this study that includes short video recordings to measure 5 tic variables: number of body areas affected, frequency of motor and phonic tics, and severity of motor and phonic tics. The RTRS total score is calculated as the sum of the 5 domain scores, and ranges from 0 to 20, with higher scores representing greater severity. The final on-treatment visit was used in subjects who discontinued prior to Week 8.	Baseline, Week 8
Secondary	Change From Baseline to Week 8 in the YGTSS Global Tic Severity Score	The YGTSS Global Tic Severity score is the sum of the YGTSS TTS and the YGTSS Impairment score and ranges from 0 to 100, with higher scores representing greater severity.	Baseline, Week 8
Secondary	Change From Baseline to Week 8 in the Premonitory Urge for Tics Scale (PUTS) Total Score	The PUTS is an instrument for quantifying the premonitory urge phenomena associated with tics. It consists of 9 items, each of which is scored on a 4-point scale (1=not at all true, 2=a little true, 3=pretty much true, 4=very much true). The PUTS total score is calculated as the sum of the scores for the 9 items. The maximum possible total score is 36.	Baseline, Week 8