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Open-label Extension Study of Pramipexole in the Treatment of Children and Adolescents With Tourette Syndrome

Open Label Extension Study With Pramipexole (PPX) in Children With Tourette Syndrome

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00681863
Enrollment
45
Registered
2008-05-21
Start date
2008-05-31
Completion date
Unknown
Last updated
2014-05-23

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

Conditions

Tourette Syndrome

Brief summary

The primary objective of this open-label, flexible dose study is to assess the safety and efficacy of pramipexole over a 24-week period in children and adolescents (age 6-17 years inclusive) diagnosed with Tourette Syndrome according to Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) criteria and who have completed either Study 248.641 (NCT 00681863) or 248.644 (NCT 00558467).

Interventions

DRUGpramipexole 0.125 mg BID

titrated dose for those patients whose symptoms were not controlled on the 0.0625 mg BID dose

DRUGpramipexole 0.0625 mg QD

dose down titrated for those patients unable to tolerate the 0.0625 mg BID dosing

DRUGpramipexole 0.125 mg TID

titrated up for those patients whose symptoms were not adequately controlled on 0.125 mg BID dose

DRUGpramipexole 0.25 mg BID

titrated for those patients whose symptoms were not adequately controlled on 0.125 mg TID dose

DRUGpramipexole 0.0625 mg BID

0.0625 mg BID given for first 4 wks of treatment

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Male or female patients aged 6-17 years at the time of enrollment into study 248.641 or 248.644 and who have completed study 248.641 or 248.644. 2. Written informed consent provided by the patient's parent (or legal guardian) and assent provided by the patient consistent with International Conference on Harmonization (ICH) Good Clinical Practice (GCP) and local Institutional Review Board (IRB) requirements for children obtained prior to any study procedures being performed. 3. Ability and willingness to comply with study treatment regimen and to complete study assessments. 4. Females of childbearing potential having a negative serum pregnancy test at Visit 1. 5. Females of childbearing potential must be using a medically accepted contraceptive method throughout the study. Acceptable methods of birth control are limited to: Intra-Uterine Device (IUD), oral, implantable, injectable contraceptives or estrogen patch, double barrier method (spermicide + diaphragm), or abstinence at the discretion of the investigator

Exclusion criteria

1. Breastfeeding females. 2. Development of any clinical condition in the preceding trial that in the investigator's opinion could be worsened by treatment with pramipexole. 3. Clinically significant renal disease or serum creatinine out of this range: 0.3 1.0 mg/dL for patients aged 3-12 years and 0.5-1.4 mg/dL for patients aged 13+ years. 4. Any of the following lab results at screening: Hemoglobin (Hgb) below lower limit of normal (LLN) which is determined to be clinically significant Basal thyroid stimulating hormone (TSH), triiodothyronine (T3) or thyroxine (T4) clinically significant (at the investigator's discretion) out of normal range at screening (if not caused by substitution therapy according the investigator's opinion) Patients with any clinically significant abnormalities in laboratory parameters at screening at the investigator's discretion. 5. Other clinically significant metabolic-endocrine, hematological, gastrointestinal disease, or pulmonary disease (such as severe asthma) in the opinion of the investigator that would preclude the patient from participating in this study. 6. History or presence of schizophrenia or any psychotic disorder. History or presence of any psychiatric disorder requiring medical therapy with the exception for patients with a diagnosis of Tourette Syndrome (TS), Attention Deficit Hyperactivity Disorder (ADHD) or Obsessive Compulsive Disorder (OCD) who are not on therapy other than pramipexole. 7. History or presence of clinical signs of epilepsy or seizures other than fever-related seizures in early childhood. 8. History or presence of clinical signs of any malignant neoplasm including suspicious undiagnosed skin lesion (which may be melanoma), melanoma, or a history of melanoma. 9. History of any other medical treatment for TS besides the study medication within 28 days prior to the baseline visit (14 days prior to baseline for guanfacine, 14 days prior to baseline for dopamine agonists, 14 days prior to baseline for L-Dopa, 35 days prior to baseline for fluoxetine). 10. Patients receiving psychotherapy are excluded unless they started the treatment at least 3 months prior to starting the trial and no changes in treatment are planned for the duration of the study. 11. Allergic response to pramipexole or the inactive ingredients in its tablet formulation. 12. Non-compliance with study medication (defined as less than 80% or more than 120%) during the preceding Study 248.641 or 248.644. 13. Concurrent participation in another clinical trial using any investigational drug since completion of the preceding Study 248.641 or 248.644. 14. Any other conditions, that in the opinion of the investigator, would interfere with the evaluation of the results or constitute a health hazard for the patient.

Design outcomes

Primary

MeasureTime frameDescription
Patients With Adverse Events Leading to Discontinuation of Trial Drug24 WeeksNumber of patients with Adverse Events leading to discontinuation of trial drug

Secondary

MeasureTime frameDescription
Mean Change From Baseline in Total Tic Score (TTS) of the Yale Global Tic Severity Scalebaseline and week 24Total 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 Scalebaseline and Week 24 (end of treatment visit)Total 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 - Severity of Illnessweek 24Overall 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, Categorizedweek 24Assessment of the overall severity of illness on a scale ranging from 1 (not at all ill) to 7 (among the most extremely ill patients). 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.
Clinical Global Impressions - Improvementweek 1Assessment of the overall improvement during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much improved) to 7 (very much worse).
Patient Global Impression - Improvementweek 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).
Frequency of Patients With Possible Clinically Significant Abnormalities for Laboratory ParametersBaseline and 24 weeksFrequency of patients with possible clinically significant abnormalities for laboratory parameters (blood hematology and electrolyte assessments, serum chemistry, including follicle-stimulating hormone (FSH), luteinizing hormone (LH) and estradiol for pubertal female patients, prolactin in all patients, testosterone in pubertal male patients, urine analysis)

Countries

Germany, United States

Participant flow

Participants by arm

ArmCount
Pramipexole
4 weeks individual dose titration starting with 0.0625 mg BID, down-titration to 0.0625 QD if not tolerated, and next steps 0.125 mg BID, 0.125 mg TID and 0.25 mg BID, according to efficacy assessment; established optimal dose for the remainder of the 24-week treatment period.
45
Total45

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event1
Overall StudyLack of Efficacy2
Overall StudyLost to Follow-up2
Overall StudyOther18

Baseline characteristics

CharacteristicPramipexole
Age, Continuous11.8 Years
STANDARD_DEVIATION 2.8
Attention Deficit Hyperactive Disorder
Intermediate
6 participants
Attention Deficit Hyperactive Disorder
Negative
22 participants
Attention Deficit Hyperactive Disorder
Positive
17 participants
Body mass index22.064 kilograms/square meter
STANDARD_DEVIATION 5.93
Body temperature36.752 Degrees centigrade
STANDARD_DEVIATION 0.718
Duration of Tourettes Syndrome
1 to 5 years
20 Participants
Duration of Tourettes Syndrome
Less than 1 year
15 Participants
Duration of Tourettes Syndrome
More than 5 years
10 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
6 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
38 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
Height152.6 centimeters
STANDARD_DEVIATION 19.4
Obsessive Compulsive Disorder
Intermediate
4 Participants
Obsessive Compulsive Disorder
Negative
37 Participants
Obsessive Compulsive Disorder
Positive
4 Participants
Race/Ethnicity, Customized
Black or African American
5 participants
Race/Ethnicity, Customized
White
40 participants
Respiration17.4 breaths/minute
STANDARD_DEVIATION 2
Sex: Female, Male
Female
9 Participants
Sex: Female, Male
Male
36 Participants
Treatment received in previous trial (NCT00558467)
Received placebo
14 Participants
Treatment received in previous trial (NCT00558467)
Received pramipexole
31 Participants
Weight53.01 kilograms
STANDARD_DEVIATION 21.58

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
โ€” / โ€”
other
Total, other adverse events
35 / 45
serious
Total, serious adverse events
1 / 45

Outcome results

Primary

Patients With Adverse Events Leading to Discontinuation of Trial Drug

Number of patients with Adverse Events leading to discontinuation of trial drug

Time frame: 24 Weeks

Population: Treated set

ArmMeasureValue (NUMBER)
PramipexolePatients With Adverse Events Leading to Discontinuation of Trial Drug1 participants
Secondary

Clinical Global Impressions - Improvement

Assessment of the overall improvement during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much improved) to 7 (very much worse).

Time frame: week 24

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

ArmMeasureGroupValue (NUMBER)
PramipexoleClinical Global Impressions - ImprovementResponder (Much improved or Very much improved)22 participants
PramipexoleClinical Global Impressions - ImprovementNot Responder23 participants
Secondary

Clinical Global Impressions - Improvement

Assessment of the overall improvement during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much improved) to 7 (very much worse).

Time frame: week 20

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Clinical Global Impressions - Improvement

Assessment of the overall improvement during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much improved) to 7 (very much worse).

Time frame: week 16

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Clinical Global Impressions - Improvement

Assessment of the overall improvement during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much improved) to 7 (very much worse).

Time frame: week 12

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Clinical Global Impressions - Improvement

Assessment of the overall improvement during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much improved) to 7 (very much worse).

Time frame: week 8

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Clinical Global Impressions - Improvement

Assessment of the overall improvement during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much improved) to 7 (very much worse).

Time frame: week 4

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Clinical Global Impressions - Improvement

Assessment of the overall improvement during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much improved) to 7 (very much worse).

Time frame: week 3

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Clinical Global Impressions - Improvement

Assessment of the overall improvement during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much improved) to 7 (very much worse).

Time frame: week 1

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Clinical Global Impressions - Improvement

Assessment of the overall improvement during the last week compared to the patient's condition at baseline on a scale ranging from 1 (very much improved) to 7 (very much worse).

Time frame: week 2

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Clinical Global Impressions - Severity of Illness

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: week 24

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

ArmMeasureValue (MEAN)Dispersion
PramipexoleClinical Global Impressions - Severity of Illness-1.1 score on a scaleStandard Deviation 1.1
Secondary

Clinical Global Impressions - Severity of Illness, Categorized

Assessment of the overall severity of illness on a scale ranging from 1 (not at all ill) to 7 (among the most extremely ill patients). 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: week 24

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

ArmMeasureGroupValue (NUMBER)
PramipexoleClinical Global Impressions - Severity of Illness, CategorizedImproved (change score <= -2)11 participants
PramipexoleClinical Global Impressions - Severity of Illness, CategorizedUnchanged (change score of -1, 0, or +1)31 participants
PramipexoleClinical Global Impressions - Severity of Illness, CategorizedWorsened (change score >= +2)0 participants
Secondary

Frequency of Patients With Possible Clinically Significant Abnormalities for Laboratory Parameters

Frequency of patients with possible clinically significant abnormalities for laboratory parameters (blood hematology and electrolyte assessments, serum chemistry, including follicle-stimulating hormone (FSH), luteinizing hormone (LH) and estradiol for pubertal female patients, prolactin in all patients, testosterone in pubertal male patients, urine analysis)

Time frame: Baseline and 24 weeks

Population: Observed Cases Treated set (OC TS). All participants in Treated Set having observed data at the particular timepoint.

ArmMeasureGroupValue (NUMBER)
PramipexoleFrequency of Patients With Possible Clinically Significant Abnormalities for Laboratory ParametersHaemoglobin - decrease2 participants
PramipexoleFrequency of Patients With Possible Clinically Significant Abnormalities for Laboratory ParametersEosinophils - increase3 participants
PramipexoleFrequency of Patients With Possible Clinically Significant Abnormalities for Laboratory ParametersPhosphate - increase2 participants
PramipexoleFrequency of Patients With Possible Clinically Significant Abnormalities for Laboratory ParametersAlkaline phosphatase - increase1 participants
Secondary

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

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 Week 2

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale-17.4 Score on a scaleStandard Deviation 17.6
Secondary

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

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 Week 3

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale-18.4 Score on a scaleStandard Deviation 19.8
Secondary

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

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 Week 4

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale-20.9 Score on a scaleStandard Deviation 21.5
Secondary

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

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 Week 8

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale-22.4 Score on a scaleStandard Deviation 21.9
Secondary

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

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 Week 12

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale-27.7 Score on a scaleStandard Deviation 20.9
Secondary

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

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 Week 16

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale-28.3 Score on a scaleStandard Deviation 20.2
Secondary

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

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 Week 20

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale-26.7 Score on a scaleStandard Deviation 24.9
Secondary

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

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 Week 24

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale-22.0 Score on a scaleStandard Deviation 23.6
Secondary

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

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 Week 1

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale-14.5 Score on a scaleStandard Deviation 18.2
Secondary

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

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 Week 24 (end of treatment visit)

Population: The Full Analysis Set (FAS) with Last Observation Carried Forward (LOCF).

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Score of the Yale Global Tic Severity Scale-22.0 Score on a scaleStandard Deviation 21
Secondary

Mean Change From Baseline in Total Tic Score (TTS) 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.

Time frame: baseline and Week 20

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Tic Score (TTS) of the Yale Global Tic Severity Scale-11.7 Score on a scaleStandard Deviation 11.3
Secondary

Mean Change From Baseline in Total Tic Score (TTS) 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.

Time frame: baseline and Week 16

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Tic Score (TTS) of the Yale Global Tic Severity Scale-12.4 Score on a scaleStandard Deviation 9.3
Secondary

Mean Change From Baseline in Total Tic Score (TTS) 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.

Time frame: baseline and Week 12

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Tic Score (TTS) of the Yale Global Tic Severity Scale-12.3 Score on a scaleStandard Deviation 9
Secondary

Mean Change From Baseline in Total Tic Score (TTS) 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.

Time frame: baseline and Week 8

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Tic Score (TTS) of the Yale Global Tic Severity Scale-10.7 Score on a scaleStandard Deviation 9.4
Secondary

Mean Change From Baseline in Total Tic Score (TTS) 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.

Time frame: baseline and week 4

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Tic Score (TTS) of the Yale Global Tic Severity Scale-9.3 Score on a scaleStandard Deviation 9.7
Secondary

Mean Change From Baseline in Total Tic Score (TTS) 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.

Time frame: baseline and Week 3

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Tic Score (TTS) of the Yale Global Tic Severity Scale-8.6 Score on a scaleStandard Deviation 8.6
Secondary

Mean Change From Baseline in Total Tic Score (TTS) 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.

Time frame: baseline and Week 2

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Tic Score (TTS) of the Yale Global Tic Severity Scale-8.3 Score on a scaleStandard Deviation 7.7
Secondary

Mean Change From Baseline in Total Tic Score (TTS) 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.

Time frame: baseline and Week 1

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Tic Score (TTS) of the Yale Global Tic Severity Scale-7.2 Score on a scaleStandard Deviation 8.5
Secondary

Mean Change From Baseline in Total Tic Score (TTS) 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.

Time frame: baseline and week 24

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

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Tic Score (TTS) of the Yale Global Tic Severity Scale-9.8 Score on a scaleStandard Deviation 8.9
Secondary

Mean Change From Baseline in Total Tic Score (TTS) 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.

Time frame: baseline and Week 24

Population: Observed Cases Full Analysis Set (OC FAS). All participants in FAS having observed data at the particular timepoint.

ArmMeasureValue (MEAN)Dispersion
PramipexoleMean Change From Baseline in Total Tic Score (TTS) of the Yale Global Tic Severity Scale-9.3 Score on a scaleStandard Deviation 10.4
Secondary

Patient Global Impression - Improvement

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: week 2

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Patient Global Impression - Improvement

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: week 3

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Patient Global Impression - Improvement

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: week 4

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Patient Global Impression - Improvement

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: week 8

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Patient Global Impression - Improvement

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: week 12

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Patient Global Impression - Improvement

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: week 16

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Patient Global Impression - Improvement

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: week 20

Population: This outcome measure was not analyzed due to the premature ending of the trial.

Secondary

Patient Global Impression - Improvement

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: week 24

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

ArmMeasureGroupValue (NUMBER)
PramipexolePatient Global Impression - ImprovementResponder (Much better or Very much better)17 participants
PramipexolePatient Global Impression - ImprovementNot Responder28 participants
Secondary

Patient Global Impression - Improvement

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: week 1

Population: This outcome measure was not analyzed due to the premature ending of the trial.

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