Trial Outcomes & Findings for Ecopipam Treatment of Tourette's Syndrome in Subjects 7-17 Years (NCT NCT02102698)
NCT ID: NCT02102698
Last Updated: 2026-05-22
Results Overview
The Yale Global Tic Severity Scale (YGTSS) is the standard rating scale used to assess the effects of a new treatment on the symptoms of Tourette's Disorder (TD). The YGTSS is a clinician-rated, multi-dimensional instrument for assessing tic symptom severity in children and adults with TD. Both motor and vocal tics are assessed for symptom number, frequency, intensity, complexity, and interference on a 0-5 Likert scale. Scores from each dimension are totaled to reflect the severity of motor tics (range 0-25) (min of 0 to max 25), vocal tics (range 0-25) (min of 0 to max 25) and combined tics, or Total Tic Score (TTS) (range 0-50) (min of 0 to max of 50, sum of motor tics and vocal tic scores). For all scores, lower score represents better outcome. The primary outcome measure is the YGTSS-TTS (Yale Global Tic Severity Scale Total Tic Score which includes both the motor and phonic tic scores).
COMPLETED
PHASE2
40 participants
Baseline and 30 days
2026-05-22
Participant Flow
First subject enrolled 19Jun2014 and last subject enrolled 17Nov2016
19 in Ecopipam/Placebo arm and 21 in Placebo/Ecopipam arm
Participant milestones
| Measure |
Ecopipam First, Then Placebo
Ecopipam first, then Placebo Treatment Phase 1: 30 days (ecopipam) Washout Phase 2: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Treatment Phase 3: 30 days (placebo) Follow-up Phase: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Ecopipam HCl tablets (12.5 mg/tablet and 50 mg/tablet) were administered orally each day at bed time. The dose was based on body weight at baseline (range 12.5 mg/day to 100 mg/day) following a protocol-specified regimen.
Placebo tablets were administered orally each day at bed time.
|
Placebo First Then Ecopipam
Placebo first then Ecopipam Treatment Phase 1: 30 days (placebo) Washout Phase 2: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Treatment Phase 3: 30 days (placebo) Follow-up Phase: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Placebo tablets were administered orally each day at bed time. Ecopipam HCl tablets (12.5 mg/tablet and 50 mg/tablet) were administered orally each day at bed time. The dose was based on body weight at baseline (range 12.5 mg/day to 100 mg/day) following a protocol-specified regimen.
|
|---|---|---|
|
Overall Study
STARTED
|
19
|
21
|
|
Overall Study
COMPLETED
|
19
|
19
|
|
Overall Study
NOT COMPLETED
|
0
|
2
|
Reasons for withdrawal
| Measure |
Ecopipam First, Then Placebo
Ecopipam first, then Placebo Treatment Phase 1: 30 days (ecopipam) Washout Phase 2: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Treatment Phase 3: 30 days (placebo) Follow-up Phase: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Ecopipam HCl tablets (12.5 mg/tablet and 50 mg/tablet) were administered orally each day at bed time. The dose was based on body weight at baseline (range 12.5 mg/day to 100 mg/day) following a protocol-specified regimen.
Placebo tablets were administered orally each day at bed time.
|
Placebo First Then Ecopipam
Placebo first then Ecopipam Treatment Phase 1: 30 days (placebo) Washout Phase 2: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Treatment Phase 3: 30 days (placebo) Follow-up Phase: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Placebo tablets were administered orally each day at bed time. Ecopipam HCl tablets (12.5 mg/tablet and 50 mg/tablet) were administered orally each day at bed time. The dose was based on body weight at baseline (range 12.5 mg/day to 100 mg/day) following a protocol-specified regimen.
|
|---|---|---|
|
Overall Study
Adverse Event
|
0
|
1
|
|
Overall Study
Lack of Efficacy
|
0
|
1
|
Baseline Characteristics
Ecopipam Treatment of Tourette's Syndrome in Subjects 7-17 Years
Baseline characteristics by cohort
| Measure |
Ecopipam First Then Placebo
n=21 Participants
Ecopipam first, then Placebo Treatment Phase 1: 30 days (ecopipam) Washout Phase 2: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Treatment Phase 3: 30 days (placebo) Follow-up Phase: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Ecopipam HCl tablets (12.5 mg/tablet and 50 mg/tablet) were administered orally each day at bed time. The dose was based on body weight at baseline (range 12.5 mg/day to 100 mg/day) following a protocol-specified regimen.
Placebo tablets were administered orally each day at bed time.
|
Placebo First Then Ecopipam
n=19 Participants
Placebo first then Ecopipam Treatment Phase 1: 30 days (ecopipam) Washout Phase 2: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Treatment Phase 3: 30 days (placebo) Follow-up Phase: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Ecopipam HCl tablets (12.5 mg/tablet and 50 mg/tablet) were administered orally each day at bed time. The dose was based on body weight at baseline (range 12.5 mg/day to 100 mg/day) following a protocol-specified regimen.
Placebo tablets were administered orally each day at bed time.
|
Total
n=40 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Age, Categorical
<=18 years
|
21 Participants
n=2 Participants
|
19 Participants
n=4 Participants
|
40 Participants
n=6 Participants
|
|
Age, Categorical
Between 18 and 65 years
|
0 Participants
n=2 Participants
|
0 Participants
n=4 Participants
|
0 Participants
n=6 Participants
|
|
Age, Categorical
>=65 years
|
0 Participants
n=2 Participants
|
0 Participants
n=4 Participants
|
0 Participants
n=6 Participants
|
|
Sex: Female, Male
Female
|
4 Participants
n=2 Participants
|
4 Participants
n=4 Participants
|
8 Participants
n=6 Participants
|
|
Sex: Female, Male
Male
|
17 Participants
n=2 Participants
|
15 Participants
n=4 Participants
|
32 Participants
n=6 Participants
|
|
Race (NIH/OMB)
American Indian or Alaska Native
|
0 Participants
n=2 Participants
|
0 Participants
n=4 Participants
|
0 Participants
n=6 Participants
|
|
Race (NIH/OMB)
Asian
|
1 Participants
n=2 Participants
|
0 Participants
n=4 Participants
|
1 Participants
n=6 Participants
|
|
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
|
0 Participants
n=2 Participants
|
0 Participants
n=4 Participants
|
0 Participants
n=6 Participants
|
|
Race (NIH/OMB)
Black or African American
|
2 Participants
n=2 Participants
|
1 Participants
n=4 Participants
|
3 Participants
n=6 Participants
|
|
Race (NIH/OMB)
White
|
16 Participants
n=2 Participants
|
17 Participants
n=4 Participants
|
33 Participants
n=6 Participants
|
|
Race (NIH/OMB)
More than one race
|
1 Participants
n=2 Participants
|
0 Participants
n=4 Participants
|
1 Participants
n=6 Participants
|
|
Race (NIH/OMB)
Unknown or Not Reported
|
1 Participants
n=2 Participants
|
1 Participants
n=4 Participants
|
2 Participants
n=6 Participants
|
|
Ethnicity (NIH/OMB)
Hispanic or Latino
|
1 Participants
n=2 Participants
|
0 Participants
n=4 Participants
|
1 Participants
n=6 Participants
|
|
Ethnicity (NIH/OMB)
Not Hispanic or Latino
|
20 Participants
n=2 Participants
|
19 Participants
n=4 Participants
|
39 Participants
n=6 Participants
|
|
Ethnicity (NIH/OMB)
Unknown or Not Reported
|
0 Participants
n=2 Participants
|
0 Participants
n=4 Participants
|
0 Participants
n=6 Participants
|
|
Region of Enrollment
United States
|
21 Participants
n=2 Participants
|
19 Participants
n=4 Participants
|
40 Participants
n=6 Participants
|
PRIMARY outcome
Timeframe: Baseline and 30 daysPopulation: Crossover design. Both groups received Ecopipam and Placebo. Total numbers include 40 for each group.
The Yale Global Tic Severity Scale (YGTSS) is the standard rating scale used to assess the effects of a new treatment on the symptoms of Tourette's Disorder (TD). The YGTSS is a clinician-rated, multi-dimensional instrument for assessing tic symptom severity in children and adults with TD. Both motor and vocal tics are assessed for symptom number, frequency, intensity, complexity, and interference on a 0-5 Likert scale. Scores from each dimension are totaled to reflect the severity of motor tics (range 0-25) (min of 0 to max 25), vocal tics (range 0-25) (min of 0 to max 25) and combined tics, or Total Tic Score (TTS) (range 0-50) (min of 0 to max of 50, sum of motor tics and vocal tic scores). For all scores, lower score represents better outcome. The primary outcome measure is the YGTSS-TTS (Yale Global Tic Severity Scale Total Tic Score which includes both the motor and phonic tic scores).
Outcome measures
| Measure |
Ecopipam
n=40 Participants
Dosed with Ecopipam first and crossed over to Placebo
|
Placebo
n=40 Participants
Dosed with Placebo first and crossed over to Ecopipam
|
|---|---|---|
|
Yale Global Tic Severity Scale - Total Tic Score
|
-5.6 Score on a scale
Standard Deviation 8.7
|
-3.4 Score on a scale
Standard Deviation 5.8
|
SECONDARY outcome
Timeframe: Baseline and Day 16Population: Crossover design. YGTSS at Day 16
The Yale Global Tic Severity Scale (YGTSS) is the standard rating scale used to assess the effects of a new treatment on the symptoms of Tourette's Disorder (TD). The YGTSS is a clinician-rated, multi-dimensional instrument for assessing tic symptom severity in children and adults with TD. Both motor and vocal tics are assessed for symptom number, frequency, intensity, complexity, and interference on a 0-5 Likert scale. Scores from each dimension are totaled to reflect the severity of motor tics (range 0-25) (min of 0 to max 25), vocal tics (range 0-25) (min of 0 to max 25) and combined tics, or Total Tic Score (TTS) (range 0-50) (min of 0 to max of 50, sum of motor tics and vocal tic scores). For all scores, lower score represents better outcome. The outcome measure described is the YGTSS-TTS (Yale Global Tic Severity Scale Total Tic Score which includes both the motor and phonic tic scores) at Day 16 vs baseline.
Outcome measures
| Measure |
Ecopipam
n=40 Participants
Dosed with Ecopipam first and crossed over to Placebo
|
Placebo
n=40 Participants
Dosed with Placebo first and crossed over to Ecopipam
|
|---|---|---|
|
YGTSS Day 16
|
-6.1275 score on a scale
Standard Error 1.1574
|
-1.9225 score on a scale
Standard Error 1.1574
|
SECONDARY outcome
Timeframe: Baseline and 30 daysPopulation: Change from Baseline at Day 30
This is a validated rating scale for the symptoms of attention deficit disorder. Scale includes 18 core items, with higher score indicating greater severity of ADHD (Total score 0-54). These scores are compared from baseline and 30 days below; There are also subscales but not individually shown. The subscales include 9 items measured for Inattention; 9 for Hyperactivity/Impulsivity. A score of 2 or 3 on any item is considered clinically significant. Measure on 4-point Likert scale and also include optional performance items. Raw scores are summed for each subscale. Scores are compared to norm-referenced percentiles based on age and gender. Higher scores may indicate ADHD.
Outcome measures
| Measure |
Ecopipam
n=40 Participants
Dosed with Ecopipam first and crossed over to Placebo
|
Placebo
n=40 Participants
Dosed with Placebo first and crossed over to Ecopipam
|
|---|---|---|
|
DuPaul ADHD (Attention Deficit Hyperactivity Disorder) Rating Scale-IV
|
-1.9 score on a scale
Standard Deviation 5.2
|
-2.7 score on a scale
Standard Deviation 6.6
|
SECONDARY outcome
Timeframe: Baseline and 30 daysPopulation: Change from baseline at Day 30
The CY-BOCS is a clinician-rated, 10-item scale to both determine severity of OCD and to monitor improvement during treatment, with a higher score indicating greater severity. The scale is a clinician-rated, 10-item scale (5 items regarding severity and 5 items regarding obsessions) that includes questions about the amount of time spent on obsessions/compulsions, level of impairment or distress, and how much resistance and control subjects have over these thoughts. The 10 items are assessed on a 6-point scale with an overall score. Total score from 0 to 40 with higher score indicating greater severity. Total score change shown below.
Outcome measures
| Measure |
Ecopipam
n=40 Participants
Dosed with Ecopipam first and crossed over to Placebo
|
Placebo
n=40 Participants
Dosed with Placebo first and crossed over to Ecopipam
|
|---|---|---|
|
Child Yale-Brown Obsessive Compulsive Scale
|
-0.8 score on a scale
Standard Deviation 3.3
|
-0.9 score on a scale
Standard Deviation 4.1
|
SECONDARY outcome
Timeframe: Baseline and 30 daysPopulation: CGI Severity
Clinical Global Impression Scales (improvement and severity) are validated rating scales that measure whether the treatment improves the symptoms of the disease (CGI-I) and whether the treatment reduces the severity of the disease (CGI-S). The CGI consists of two reliable and valid 7-item Likert scales used to assess severity and change in clinical symptoms. The severity scale (CGI-S) ranges from 1 (Normal, not ill) to 7 (extremely ill). The improvement scale (CGI-I) ranges from 1 (very much improved) to 7 (very much worse) with a score of 1 or 2 defining positive response. The improvement rating compares the subject's overall clinical condition to the Baseline visit and the rater should consider the following question: "Compared to tic severity at baseline, how much has the subject changed?" Data shows how much improvement at Day 30 with Ecopipam vs Placebo.
Outcome measures
| Measure |
Ecopipam
n=40 Participants
Dosed with Ecopipam first and crossed over to Placebo
|
Placebo
n=40 Participants
Dosed with Placebo first and crossed over to Ecopipam
|
|---|---|---|
|
Clinical Global Impression Scale - Severity
|
-0.7637 score on a scale
Interval -0.9049 to -0.1678
|
-0.2293 score on a scale
Interval -0.993 to 0.109
|
Adverse Events
Ecopipam
Placebo
Serious adverse events
| Measure |
Ecopipam
n=40 participants at risk
Treatment Phase 1: 30 days (ecopipam) Washout Phase 2: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Treatment Phase 3: 30 days (placebo) Follow-up Phase: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Ecopipam HCl tablets (12.5 mg/tablet and 50 mg/tablet) were administered orally each day at bed time. The dose was based on body weight at baseline (range 12.5 mg/day to 100 mg/day) following a protocol-specified regimen.
Placebo tablets were administered orally each day at bed time.
|
Placebo
n=40 participants at risk
Treatment Phase 1: 30 days (ecopipam) Washout Phase 2: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Treatment Phase 3: 30 days (placebo) Follow-up Phase: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Ecopipam HCl tablets (12.5 mg/tablet and 50 mg/tablet) were administered orally each day at bed time. The dose was based on body weight at baseline (range 12.5 mg/day to 100 mg/day) following a protocol-specified regimen.
Placebo tablets were administered orally each day at bed time.
|
|---|---|---|
|
Psychiatric disorders
Psychotic Disorder/Psychosis
|
0.00%
0/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
2.5%
1/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
Other adverse events
| Measure |
Ecopipam
n=40 participants at risk
Treatment Phase 1: 30 days (ecopipam) Washout Phase 2: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Treatment Phase 3: 30 days (placebo) Follow-up Phase: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Ecopipam HCl tablets (12.5 mg/tablet and 50 mg/tablet) were administered orally each day at bed time. The dose was based on body weight at baseline (range 12.5 mg/day to 100 mg/day) following a protocol-specified regimen.
Placebo tablets were administered orally each day at bed time.
|
Placebo
n=40 participants at risk
Treatment Phase 1: 30 days (ecopipam) Washout Phase 2: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Treatment Phase 3: 30 days (placebo) Follow-up Phase: 14 days (down-titration Days 1-4 and then washout/no study drug for 10 days) Ecopipam HCl tablets (12.5 mg/tablet and 50 mg/tablet) were administered orally each day at bed time. The dose was based on body weight at baseline (range 12.5 mg/day to 100 mg/day) following a protocol-specified regimen.
Placebo tablets were administered orally each day at bed time.
|
|---|---|---|
|
Gastrointestinal disorders
Abdominal pain upper
|
10.0%
4/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
10.0%
4/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
|
Gastrointestinal disorders
Nausea
|
10.0%
4/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
7.5%
3/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
|
Gastrointestinal disorders
Vomiting
|
10.0%
4/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
7.5%
3/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
|
Gastrointestinal disorders
Decreased appetite
|
7.5%
3/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
2.5%
1/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
|
General disorders
Fatigue
|
7.5%
3/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
5.0%
2/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
|
Respiratory, thoracic and mediastinal disorders
Nasopharyngitis
|
7.5%
3/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
12.5%
5/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
|
Nervous system disorders
Headache
|
15.0%
6/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
12.5%
5/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
|
Psychiatric disorders
Insomnia
|
10.0%
4/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
0.00%
0/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
|
Psychiatric disorders
Somnolence
|
10.0%
4/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
5.0%
2/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
|
Nervous system disorders
sedation
|
7.5%
3/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
2.5%
1/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
|
Nervous system disorders
Restlessness
|
5.0%
2/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
0.00%
0/40 • The time period included from enrollment (first day of study drug) until follow up (14 days after the subject's last visit) or until resolution of the AE whichever came first. Time period from enrollment until follow up visit can be up to 88 days.
|
Additional Information
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place