Skip to content

Pramipexole Pilot Phase II Study in Children and Adolescents With Tourette Disorder According to DSM-IV Criteria

A Randomized, Double-blind, Placebo-controlled, Flexible Dose Study to Evaluate Efficacy and Safety of Pramipexole Immediate Release (0.125-0.5mg/Day) Versus Placebo for 6 Weeks in Children and Adolescents (Age 6-17 Inclusive) Diagnosed With Tourette Disorder According to DSM IV Criteria.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00558467
Enrollment
63
Registered
2007-11-15
Start date
2008-01-31
Completion date
Unknown
Last updated
2014-05-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Tourette Syndrome

Brief summary

A randomized, double-blind, placebo-controlled, flexible dose study to evaluate efficacy and safety of Pramipexole versus placebo for 6 weeks in children (age 6-17) diagnosed with Tourette Disorder according to DSM IV criteria. The primary efficacy measure will be the Total Tic Score (TTS) of the Yale Global Tic Severity Scale (YGTSS) at 6 weeks.

Interventions

DRUGpramipexole immediate release (IR)
DRUGPlacebo

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
6 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

* Male of female patients 6-17 yrs. * Written informed consent. * Diagnosed with Tourette's Disorder with a \> or equal to 22 on the Total Tic Score at baseline. * Diagnosed with Tourette's Disorder when administering the Diagnostic Interview Schedule for Children. * Having at least 1 tic/day. * Women of childbearing age must have a negative serum pregnancy test at screening and must use a medically accepted contraceptive method. * Either a newly diagnosed patient or a patient diagnosed with Tourette's Disorder who can safely discontinue treatment. * Having a body weight of \> or equal to 20 kg (44 lbs).

Exclusion criteria

* Any women of childbearing age having a positive serum pregnancy test at screening. * Patients who have clinically significant renal disease or serum creatinine greater than 1.0 mg/dL at screening. * Lab results at screening: hemoglobin below lower limit of normal which is determined to be clinically significant; Thyroid Stimulating Hormone (TSH), triiodothyronine (T3) or thyroxine (T4) clinically significant; clinically significant abnormalities in labs. * Other clinically significant metabolic-endocrine, hematological, gastrointestinal disease, pulmonary disease which would preclude the patient from participating in this study. * History of Schizophrenia or any psychotic disorder, history of mental disorders or any present Axis I psychiatric disorder according to Diagnostic and Statistic Manual of Mental Disorders Fourth Edition (DSM-IV) requiring any medical therapy except for patients with a diagnosis of attention deficit hyperactivity disorder (ADHD) or obsessive-compulsive disorder (OCD) who are not on therapy. * History of/or clinical signs of epilepsy or seizures other than fever related seizures in early childhood. * History of/or clinical signs of any malignant neoplasm. * Allergic response to pramipexole. * Had previous treatment with dopamine agonists other than pramipexole within 14 days prior to baseline visit. * Had any other medical treatment for Tourette's Disorder besides the study medication within 28 days prior to baseline visit. * Had withdrawal symptoms of any medication at screening or at the baseline visit. * Having a Kaufman Brief Intelligence Test (KBIT IQ) score \<70 at screening. * Having a children's Yale-Brown obsessive-compulsive scale (CY-BOCS) score of \>15 at baseline. * Patients who meet criteria for Restless Legs Syndrome and or Periodic Limb Movement disorder. * Patients with severe asthma. * Patients that have initiated psychotherapy for Tourette's Disorder, OCD or ADHD within 3 mths of starting the trial. * Patients receiving psychological, cognitive and/or behavioral treatments greater than 3 mths prior to start of trial for Tourette's Disorder, OCD, and/or ADHD who will have changes in treatment plan.

Design outcomes

Primary

MeasureTime frameDescription
Mean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scalebaseline 6 weeksTotal Tic Score is the sum of ten individual ratings of the impairment due to tics. Each scale ranges from 0 (None/Absent) to 5 (Severe) and total score ranges from 0 to 50. Analysis was adjusted for baseline total tic score and age as linear covariates.

Secondary

MeasureTime frameDescription
Clinical Global Impressions - Severity of Illness at Week 3baseline and Week 3Assessment of the overall severity of illness on a scale ranging from 1 (not at all ill) to 7 (the most extremely ill patients). Improved, Unchanged and Worsened responses correspond to changes from baseline of: -2 or less, -1 to +1, and 2 or greater.
Mean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 1baseline 1 weekTotal Tic Score is the sum of ten individual ratings of the impairment due to tics. Each scale ranges from 0 (None/Absent) to 5 (Severe) and total score ranges from 0 to 50
Mean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 2baseline and 2 weeksTotal Tic Score is the sum of ten individual ratings of the impairment due to tics. Each scale ranges from 0 (None/Absent) to 5 (Severe) and total score ranges from 0 to 50
Mean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 3baseline and 3 weeksTotal Tic Score is the sum of ten individual ratings of the impairment due to tics. Each scale ranges from 0 (None/Absent) to 5 (Severe) and total score ranges from 0 to 50
Mean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 4baseline and 4 weeksTotal Tic Score is the sum of ten individual ratings of the impairment due to tics. Each scale ranges from 0 (None/Absent) to 5 (Severe) and total score ranges from 0 to 50
Mean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 6baseline and 6 weeksTotal Score is a rating of the overall impairment due to motor and phonic tics. The scale ranges from 0 (None) to 50 (Severe)
Mean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 1baseline 1 weekTotal Score is a rating of the overall impairment due to motor and phonic tics. The scale ranges from 0 (None) to 50 (Severe)
Mean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 2baseline and 2 weeksTotal Score is a rating of the overall impairment due to motor and phonic tics. The scale ranges from 0 (None) to 50 (Severe)
Mean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 3baseline and 3 weeksTotal Score is a rating of the overall impairment due to motor and phonic tics. The scale ranges from 0 (None) to 50 (Severe)
Mean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 4baseline 4 weeksTotal Score is a rating of the overall impairment due to motor and phonic tics. The scale ranges from 0 (None) to 50 (Severe)
Clinical Global Impressions - Improvement at 1 Weekbaseline and Week 1Overall improvement during the last week compared to baseline ranging from 1 (very much improved), 2 (much improved), to 7 (very much worse). Responder has 'very much' or 'much' improvement. Non responder has less improvement than 'much' improvement.
Clinical Global Impressions - Improvement at Week 2baseline and Week 2Overall improvement during the last week compared to baseline ranging from 1 (very much improved), 2 (much improved), to 7 (very much worse). Responder has 'very much' or 'much' improvement. Non responder has less improvement than 'much' improvement.
Clinical Global Impressions - Severity of Illness at Week 2baseline and Week 2Assessment of the overall severity of illness on a scale ranging from 1 (not at all ill) to 7 (the most extremely ill patients). Improved, Unchanged and Worsened responses correspond to changes from baseline of: -2 or less, -1 to +1, and 2 or greater.
Clinical Global Impressions - Improvement at Week 4baseline and Week 4Overall improvement during the last week compared to baseline ranging from 1 (very much improved), 2 (much improved), to 7 (very much worse). Responder has 'very much' or 'much' improvement. Non responder has less improvement than 'much' improvement.
Clinical Global Impressions - Improvement at Week 6baseline and Week 6Overall improvement during the last week compared to baseline ranging from 1 (very much improved), 2 (much improved), to 7 (very much worse). Responder has 'very much' or 'much' improvement. Non responder has less improvement than 'much' improvement.
Clinical Global Impressions - Severity of Illness at Week 1baseline and Week 1Assessment of the overall severity of illness on a scale ranging from 1 (not at all ill) to 7 (the most extremely ill patients). Improved, Unchanged and Worsened responses correspond to changes from baseline of: -2 or less, -1 to +1, and 2 or greater.
Clinical Global Impressions - Severity of Illness at Week 4baseline and Week 4Assessment of the overall severity of illness on a scale ranging from 1 (not at all ill) to 7 (the most extremely ill patients). Improved, Unchanged and Worsened responses correspond to changes from baseline of: -2 or less, -1 to +1, and 2 or greater.
Clinical Global Impressions - Severity of Illness at Week 6baseline and Week 6Assessment of the overall severity of illness on a scale ranging from 1 (not at all ill) to 7 (the most extremely ill patients). Improved, Unchanged and Worsened responses correspond to changes from baseline of: -2 or less, -1 to +1, and 2 or greater.
Patient Global Impression at Week 1baseline and Week 1Assessment of the change of the patient's overall condition during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much better) to 7 (very much worse). A responder is defined as having a response of very much (1) or much better (2).
Patient Global Impression at Week 2baseline and Week 2Assessment of the change of the patient's overall condition during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much better) to 7 (very much worse). A responder is defined as having a response of very much (1) or much better (2).
Patient Global Impression at Week 3baseline and Week 3Assessment of the change of the patient's overall condition during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much better) to 7 (very much worse). A responder is defined as having a response of very much (1) or much better (2).
Patient Global Impression at Week 4baseline and Week 4Assessment of the change of the patient's overall condition during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much better) to 7 (very much worse). A responder is defined as having a response of very much (1) or much better (2).
Patient Global Impression at Week 6baseline and Week 6Assessment of the change of the patient's overall condition during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much better) to 7 (very much worse). A responder is defined as having a response of very much (1) or much better (2).
Clinically Significant Abnormalities in Vital Signs (Orthostatic Reaction and Pulse Rate), and Serum Chemistry.baseline and Week 6
Clinical Global Impressions - Improvement at Week 3baseline and Week 3Overall improvement during the last week compared to baseline ranging from 1 (very much improved), 2 (much improved), to 7 (very much worse). Responder has 'very much' or 'much' improvement. Non responder has less improvement than 'much' improvement.

Countries

Germany, United States

Participant flow

Participants by arm

ArmCount
Placebo
Placebo tablets matching the Pramipexole tablets to be taken per os
20
Pramipexole
Pramipexole (tablets of 0.0625 mg, 0.125 mg and 0.25 mg) to be taken per os. Starting dose 0.0625 mg bid, with possible down titration after one week to 0.0625 mg qd or optional up titration to 0.125 mg bid, after the second week optional up titration to 0.125 mg tid, after the third week optional up titration to 0.25 mg bid.
43
Total63

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event12
Overall StudyLack of Efficacy01
Overall StudyPatient moving out of state01

Baseline characteristics

CharacteristicPlaceboPramipexoleTotal
Age, Continuous11.1 Years
STANDARD_DEVIATION 3.2
12.2 Years
STANDARD_DEVIATION 2.4
11.8 Years
STANDARD_DEVIATION 2.7
Attention Deficit Hyperactive Disorder
Intermediate
3 Number of Patients6 Number of Patients9 Number of Patients
Attention Deficit Hyperactive Disorder
Negative
9 Number of Patients22 Number of Patients31 Number of Patients
Attention Deficit Hyperactive Disorder
Positive
8 Number of Patients15 Number of Patients23 Number of Patients
Body Mass Index20.085 kilograms/(meters squared)
STANDARD_DEVIATION 5.324
22.575 kilograms/(meters squared)
STANDARD_DEVIATION 5.656
21.784 kilograms/(meters squared)
STANDARD_DEVIATION 5.632
Duration of Tourettes syndrome
1-5 years
10 participants19 participants29 participants
Duration of Tourettes syndrome
Less than 1 years
6 participants12 participants18 participants
Duration of Tourettes syndrome
More than 5 years
4 participants12 participants16 participants
Ethnicity, Customized
Hispanic/Latino
2 Number of Patients5 Number of Patients7 Number of Patients
Ethnicity, Customized
Not Hispanic/Latino
18 Number of Patients38 Number of Patients56 Number of Patients
Height150.7 centimeters
STANDARD_DEVIATION 21.6
155.3 centimeters
STANDARD_DEVIATION 16.2
153.8 centimeters
STANDARD_DEVIATION 18
Obsessive Compulsive Disorder
Intermediate
1 participants3 participants4 participants
Obsessive Compulsive Disorder
Negative
16 participants37 participants53 participants
Obsessive Compulsive Disorder
Positive
3 participants3 participants6 participants
Race, Customized
Black/African American
2 participants4 participants6 participants
Race, Customized
White
18 participants39 participants57 participants
Sex: Female, Male
Female
2 Participants8 Participants10 Participants
Sex: Female, Male
Male
18 Participants35 Participants53 Participants
Weight47.48 kilograms
STANDARD_DEVIATION 21.29
55.87 kilograms
STANDARD_DEVIATION 20.64
53.21 kilograms
STANDARD_DEVIATION 21.05

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
13 / 2025 / 43
serious
Total, serious adverse events
1 / 200 / 43

Outcome results

Primary

Mean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale

Total Tic Score is the sum of ten individual ratings of the impairment due to tics. Each scale ranges from 0 (None/Absent) to 5 (Severe) and total score ranges from 0 to 50. Analysis was adjusted for baseline total tic score and age as linear covariates.

Time frame: baseline 6 weeks

Population: The Full Analysis Set (FAS) with last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboMean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale-7.17 score on a scaleStandard Error 2.02
PramipexoleMean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale-7.16 score on a scaleStandard Error 1.38
p-value: 0.99695% CI: [-4.95, 4.97]ANCOVA
Secondary

Clinical Global Impressions - Improvement at 1 Week

Overall improvement during the last week compared to baseline ranging from 1 (very much improved), 2 (much improved), to 7 (very much worse). Responder has 'very much' or 'much' improvement. Non responder has less improvement than 'much' improvement.

Time frame: baseline and Week 1

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboClinical Global Impressions - Improvement at 1 WeekNot Responder20 Number of Patients
PlaceboClinical Global Impressions - Improvement at 1 WeekResponder0 Number of Patients
PramipexoleClinical Global Impressions - Improvement at 1 WeekResponder5 Number of Patients
PramipexoleClinical Global Impressions - Improvement at 1 WeekNot Responder37 Number of Patients
p-value: 0.1052Cochran-Mantel-Haenszel
Secondary

Clinical Global Impressions - Improvement at Week 2

Overall improvement during the last week compared to baseline ranging from 1 (very much improved), 2 (much improved), to 7 (very much worse). Responder has 'very much' or 'much' improvement. Non responder has less improvement than 'much' improvement.

Time frame: baseline and Week 2

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboClinical Global Impressions - Improvement at Week 2Responder1 Number of Patients
PlaceboClinical Global Impressions - Improvement at Week 2Not Responder19 Number of Patients
PramipexoleClinical Global Impressions - Improvement at Week 2Responder6 Number of Patients
PramipexoleClinical Global Impressions - Improvement at Week 2Not Responder36 Number of Patients
p-value: 0.2274Cochran-Mantel-Haenszel
Secondary

Clinical Global Impressions - Improvement at Week 3

Overall improvement during the last week compared to baseline ranging from 1 (very much improved), 2 (much improved), to 7 (very much worse). Responder has 'very much' or 'much' improvement. Non responder has less improvement than 'much' improvement.

Time frame: baseline and Week 3

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboClinical Global Impressions - Improvement at Week 3Not Responder18 Number of Patients
PlaceboClinical Global Impressions - Improvement at Week 3Responder2 Number of Patients
PramipexoleClinical Global Impressions - Improvement at Week 3Not Responder37 Number of Patients
PramipexoleClinical Global Impressions - Improvement at Week 3Responder5 Number of Patients
p-value: 0.7691Cochran-Mantel-Haenszel
Secondary

Clinical Global Impressions - Improvement at Week 4

Overall improvement during the last week compared to baseline ranging from 1 (very much improved), 2 (much improved), to 7 (very much worse). Responder has 'very much' or 'much' improvement. Non responder has less improvement than 'much' improvement.

Time frame: baseline and Week 4

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboClinical Global Impressions - Improvement at Week 4Responder7 Number of Patients
PlaceboClinical Global Impressions - Improvement at Week 4Not Responder13 Number of Patients
PramipexoleClinical Global Impressions - Improvement at Week 4Responder6 Number of Patients
PramipexoleClinical Global Impressions - Improvement at Week 4Not Responder36 Number of Patients
p-value: 0.0674Cochran-Mantel-Haenszel
Secondary

Clinical Global Impressions - Improvement at Week 6

Overall improvement during the last week compared to baseline ranging from 1 (very much improved), 2 (much improved), to 7 (very much worse). Responder has 'very much' or 'much' improvement. Non responder has less improvement than 'much' improvement.

Time frame: baseline and Week 6

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboClinical Global Impressions - Improvement at Week 6Responder7 Number of Patients
PlaceboClinical Global Impressions - Improvement at Week 6Not Responder13 Number of Patients
PramipexoleClinical Global Impressions - Improvement at Week 6Responder11 Number of Patients
PramipexoleClinical Global Impressions - Improvement at Week 6Not Responder31 Number of Patients
p-value: 0.4944Cochran-Mantel-Haenszel
Secondary

Clinical Global Impressions - Severity of Illness at Week 1

Assessment of the overall severity of illness on a scale ranging from 1 (not at all ill) to 7 (the most extremely ill patients). Improved, Unchanged and Worsened responses correspond to changes from baseline of: -2 or less, -1 to +1, and 2 or greater.

Time frame: baseline and Week 1

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboClinical Global Impressions - Severity of Illness at Week 1Improved0 Number of Patients
PlaceboClinical Global Impressions - Severity of Illness at Week 1Worsened0 Number of Patients
PlaceboClinical Global Impressions - Severity of Illness at Week 1Unchanged20 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 1Worsened0 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 1Improved4 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 1Unchanged38 Number of Patients
p-value: 0.162Cochran-Mantel-Haenszel
Secondary

Clinical Global Impressions - Severity of Illness at Week 2

Assessment of the overall severity of illness on a scale ranging from 1 (not at all ill) to 7 (the most extremely ill patients). Improved, Unchanged and Worsened responses correspond to changes from baseline of: -2 or less, -1 to +1, and 2 or greater.

Time frame: baseline and Week 2

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboClinical Global Impressions - Severity of Illness at Week 2Improved1 Number of Patients
PlaceboClinical Global Impressions - Severity of Illness at Week 2Unchanged19 Number of Patients
PlaceboClinical Global Impressions - Severity of Illness at Week 2Worsened0 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 2Improved4 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 2Unchanged37 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 2Worsened1 Number of Patients
p-value: 0.6375Cochran-Mantel-Haenszel
Secondary

Clinical Global Impressions - Severity of Illness at Week 3

Assessment of the overall severity of illness on a scale ranging from 1 (not at all ill) to 7 (the most extremely ill patients). Improved, Unchanged and Worsened responses correspond to changes from baseline of: -2 or less, -1 to +1, and 2 or greater.

Time frame: baseline and Week 3

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboClinical Global Impressions - Severity of Illness at Week 3Improved3 Number of Patients
PlaceboClinical Global Impressions - Severity of Illness at Week 3Unchanged17 Number of Patients
PlaceboClinical Global Impressions - Severity of Illness at Week 3Worsened0 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 3Improved4 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 3Unchanged37 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 3Worsened1 Number of Patients
p-value: 0.6625Cochran-Mantel-Haenszel
Secondary

Clinical Global Impressions - Severity of Illness at Week 4

Assessment of the overall severity of illness on a scale ranging from 1 (not at all ill) to 7 (the most extremely ill patients). Improved, Unchanged and Worsened responses correspond to changes from baseline of: -2 or less, -1 to +1, and 2 or greater.

Time frame: baseline and Week 4

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboClinical Global Impressions - Severity of Illness at Week 4Unchanged16 Number of Patients
PlaceboClinical Global Impressions - Severity of Illness at Week 4Worsened0 Number of Patients
PlaceboClinical Global Impressions - Severity of Illness at Week 4Improved4 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 4Unchanged38 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 4Worsened0 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 4Improved4 Number of Patients
p-value: 0.2664Cochran-Mantel-Haenszel
Secondary

Clinical Global Impressions - Severity of Illness at Week 6

Assessment of the overall severity of illness on a scale ranging from 1 (not at all ill) to 7 (the most extremely ill patients). Improved, Unchanged and Worsened responses correspond to changes from baseline of: -2 or less, -1 to +1, and 2 or greater.

Time frame: baseline and Week 6

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboClinical Global Impressions - Severity of Illness at Week 6Improved4 Number of Patients
PlaceboClinical Global Impressions - Severity of Illness at Week 6Unchanged16 Number of Patients
PlaceboClinical Global Impressions - Severity of Illness at Week 6Worsened0 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 6Improved10 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 6Unchanged32 Number of Patients
PramipexoleClinical Global Impressions - Severity of Illness at Week 6Worsened0 Number of Patients
p-value: 0.7302Cochran-Mantel-Haenszel
Secondary

Clinically Significant Abnormalities in Vital Signs (Orthostatic Reaction and Pulse Rate), and Serum Chemistry.

Time frame: baseline and Week 6

Population: Full Analysis Set (FAS).

ArmMeasureGroupValue (NUMBER)
PlaceboClinically Significant Abnormalities in Vital Signs (Orthostatic Reaction and Pulse Rate), and Serum Chemistry.Phosphate - increase2 participants
PlaceboClinically Significant Abnormalities in Vital Signs (Orthostatic Reaction and Pulse Rate), and Serum Chemistry.Bilirubin, total - increase0 participants
PlaceboClinically Significant Abnormalities in Vital Signs (Orthostatic Reaction and Pulse Rate), and Serum Chemistry.Tachycardia0 participants
PlaceboClinically Significant Abnormalities in Vital Signs (Orthostatic Reaction and Pulse Rate), and Serum Chemistry.Orthostatic hypotension1 participants
PramipexoleClinically Significant Abnormalities in Vital Signs (Orthostatic Reaction and Pulse Rate), and Serum Chemistry.Orthostatic hypotension4 participants
PramipexoleClinically Significant Abnormalities in Vital Signs (Orthostatic Reaction and Pulse Rate), and Serum Chemistry.Phosphate - increase5 participants
PramipexoleClinically Significant Abnormalities in Vital Signs (Orthostatic Reaction and Pulse Rate), and Serum Chemistry.Tachycardia1 participants
PramipexoleClinically Significant Abnormalities in Vital Signs (Orthostatic Reaction and Pulse Rate), and Serum Chemistry.Bilirubin, total - increase1 participants
Secondary

Mean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 1

Total Score is a rating of the overall impairment due to motor and phonic tics. The scale ranges from 0 (None) to 50 (Severe)

Time frame: baseline 1 week

Population: The Full Analysis Set was composed of patients that provided a baseline and a post-baseline assessment in Total Tic Score. A total of 62 patients are included in the Full Analysis Set, 20 placebo patients and 42 pramipexole patients.

ArmMeasureValue (MEAN)Dispersion
PlaceboMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 1-6.2 score on a scaleStandard Deviation 13.3
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 1-8.8 score on a scaleStandard Deviation 11.1
Secondary

Mean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 2

Total Score is a rating of the overall impairment due to motor and phonic tics. The scale ranges from 0 (None) to 50 (Severe)

Time frame: baseline and 2 weeks

Population: The Full Analysis Set was composed of patients that provided a baseline and a post-baseline assessment in Total Tic Score. A total of 62 patients are included in the Full Analysis Set, 20 placebo patients and 42 pramipexole patients.

ArmMeasureValue (MEAN)Dispersion
PlaceboMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 2-9.5 score on a scaleStandard Deviation 16.1
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 2-10.6 score on a scaleStandard Deviation 17.5
Secondary

Mean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 3

Total Score is a rating of the overall impairment due to motor and phonic tics. The scale ranges from 0 (None) to 50 (Severe)

Time frame: baseline and 3 weeks

Population: The Full Analysis Set was composed of patients that provided a baseline and a post-baseline assessment in Total Tic Score. A total of 62 patients are included in the Full Analysis Set, 20 placebo patients and 42 pramipexole patients.

ArmMeasureValue (MEAN)Dispersion
PlaceboMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 3-14.1 score on a scaleStandard Deviation 17.2
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 3-12.2 score on a scaleStandard Deviation 15.7
Secondary

Mean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 4

Total Score is a rating of the overall impairment due to motor and phonic tics. The scale ranges from 0 (None) to 50 (Severe)

Time frame: baseline 4 weeks

Population: The Full Analysis Set was composed of patients that provided a baseline and a post-baseline assessment in Total Tic Score. A total of 62 patients are included in the Full Analysis Set, 20 placebo patients and 42 pramipexole patients.

ArmMeasureValue (MEAN)Dispersion
PlaceboMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 4-15.5 score on a scaleStandard Deviation 18.2
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 4-13.9 score on a scaleStandard Deviation 15.7
Secondary

Mean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 6

Total Score is a rating of the overall impairment due to motor and phonic tics. The scale ranges from 0 (None) to 50 (Severe)

Time frame: baseline and 6 weeks

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 6-15.43 score on a scaleStandard Error 4.44
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale Due to Motor and Phonic Tics at Week 6-15.58 score on a scaleStandard Error 3.03
p-value: 0.97895% CI: [-11.05, 10.75]ANCOVA
Secondary

Mean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 1

Total Tic Score is the sum of ten individual ratings of the impairment due to tics. Each scale ranges from 0 (None/Absent) to 5 (Severe) and total score ranges from 0 to 50

Time frame: baseline 1 week

Population: The Full Analysis Set was composed of patients that provided a baseline and a post-baseline assessment in Total Tic Score. A total of 62 patients are included in the Full Analysis Set, 20 placebo patients and 42 pramipexole patients.

ArmMeasureValue (MEAN)Dispersion
PlaceboMean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 1-3.7 score on a scaleStandard Deviation 4.1
PramipexoleMean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 1-4.1 score on a scaleStandard Deviation 5.4
95% CI: [-5.81, -2.08]Repeated Measures
Secondary

Mean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 2

Total Tic Score is the sum of ten individual ratings of the impairment due to tics. Each scale ranges from 0 (None/Absent) to 5 (Severe) and total score ranges from 0 to 50

Time frame: baseline and 2 weeks

Population: The Full Analysis Set was composed of patients that provided a baseline and a post-baseline assessment in Total Tic Score. A total of 62 patients are included in the Full Analysis Set, 20 placebo patients and 42 pramipexole patients.

ArmMeasureValue (MEAN)Dispersion
PlaceboMean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 2-5.3 score on a scaleStandard Deviation 7.9
PramipexoleMean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 2-5 score on a scaleStandard Deviation 7.4
95% CI: [-7.21, -3.39]Repeated measures
Secondary

Mean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 3

Total Tic Score is the sum of ten individual ratings of the impairment due to tics. Each scale ranges from 0 (None/Absent) to 5 (Severe) and total score ranges from 0 to 50

Time frame: baseline and 3 weeks

Population: The Full Analysis Set was composed of patients that provided a baseline and a post-baseline assessment in Total Tic Score. A total of 62 patients are included in the Full Analysis Set, 20 placebo patients and 42 pramipexole patients.

ArmMeasureValue (MEAN)Dispersion
PlaceboMean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 3-6.2 score on a scaleStandard Deviation 6.3
PramipexoleMean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 3-5.4 score on a scaleStandard Deviation 6.3
Secondary

Mean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 4

Total Tic Score is the sum of ten individual ratings of the impairment due to tics. Each scale ranges from 0 (None/Absent) to 5 (Severe) and total score ranges from 0 to 50

Time frame: baseline and 4 weeks

Population: The Full Analysis Set was composed of patients that provided a baseline and a post-baseline assessment in Total Tic Score. A total of 62 patients are included in the Full Analysis Set, 20 placebo patients and 42 pramipexole patients.

ArmMeasureValue (MEAN)Dispersion
PlaceboMean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 4-6 score on a scaleStandard Deviation 7.9
PramipexoleMean Change From Baseline in Total Tic Score of the Yale Global Tic Severity Scale at Week 4-6.4 score on a scaleStandard Deviation 7.3
95% CI: [-7.88, -4.06]Repeated measures
Secondary

Patient Global Impression at Week 1

Assessment of the change of the patient's overall condition during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much better) to 7 (very much worse). A responder is defined as having a response of very much (1) or much better (2).

Time frame: baseline and Week 1

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboPatient Global Impression at Week 1Responder4 Number of Patients
PlaceboPatient Global Impression at Week 1Not Responder16 Number of Patients
PramipexolePatient Global Impression at Week 1Responder7 Number of Patients
PramipexolePatient Global Impression at Week 1Not Responder35 Number of Patients
p-value: 0.7723Cochran-Mantel-Haenszel
Secondary

Patient Global Impression at Week 2

Assessment of the change of the patient's overall condition during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much better) to 7 (very much worse). A responder is defined as having a response of very much (1) or much better (2).

Time frame: baseline and Week 2

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboPatient Global Impression at Week 2Responder6 Number of Patients
PlaceboPatient Global Impression at Week 2Not Responder14 Number of Patients
PramipexolePatient Global Impression at Week 2Responder9 Number of Patients
PramipexolePatient Global Impression at Week 2Not Responder33 Number of Patients
p-value: 0.4852Cochran-Mantel-Haenszel
Secondary

Patient Global Impression at Week 3

Assessment of the change of the patient's overall condition during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much better) to 7 (very much worse). A responder is defined as having a response of very much (1) or much better (2).

Time frame: baseline and Week 3

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboPatient Global Impression at Week 3Responder5 Number of Patients
PlaceboPatient Global Impression at Week 3Not Responder15 Number of Patients
PramipexolePatient Global Impression at Week 3Responder7 Number of Patients
PramipexolePatient Global Impression at Week 3Not Responder35 Number of Patients
p-value: 0.4607Cochran-Mantel-Haenszel
Secondary

Patient Global Impression at Week 4

Assessment of the change of the patient's overall condition during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much better) to 7 (very much worse). A responder is defined as having a response of very much (1) or much better (2).

Time frame: baseline and Week 4

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboPatient Global Impression at Week 4Responder4 Number of Patients
PlaceboPatient Global Impression at Week 4Not Responder16 Number of Patients
PramipexolePatient Global Impression at Week 4Responder7 Number of Patients
PramipexolePatient Global Impression at Week 4Not Responder35 Number of Patients
p-value: 0.7723Cochran-Mantel-Haenszel
Secondary

Patient Global Impression at Week 6

Assessment of the change of the patient's overall condition during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much better) to 7 (very much worse). A responder is defined as having a response of very much (1) or much better (2).

Time frame: baseline and Week 6

Population: The Full Analysis Set with last observation carried forward (LOCF).

ArmMeasureGroupValue (NUMBER)
PlaceboPatient Global Impression at Week 6Responder6 Number of Patients
PlaceboPatient Global Impression at Week 6Not Responder14 Number of Patients
PramipexolePatient Global Impression at Week 6Responder12 Number of Patients
PramipexolePatient Global Impression at Week 6Not Responder30 Number of Patients
p-value: 0.9389Cochran-Mantel-Haenszel

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026