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Efficacy and Safety of Pramipexole Compared to Placebo in the Treatment of Restless Legs Syndrome (RLS)

A Randomized, Double-blind, Placebo-controlled, Parallel Group Clinical Trial Comparing Fixed Doses of 0.25 mg, 0.50 mg and 0.75 mg Pramipexole (Mirapex®) Administered Orally to Investigate the Safety and Efficacy in Patients With Idiopathic Restless Legs Syndrome for 12 Weeks

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00133198
Enrollment
345
Registered
2005-08-23
Start date
2004-04-30
Completion date
2005-02-28
Last updated
2013-11-08

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

Conditions

Restless Legs Syndrome

Brief summary

A 12 week clinical trial was conducted in the United States in order to compare pramipexole (Mirapex®) versus placebo for the ability to reduce the symptoms of restless legs syndrome in adult subjects.

Interventions

DRUGPramipexole

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Design outcomes

Primary

MeasureTime frame
Change from baseline in the total score of RLSRS (Restless Legs Syndrome rating scale for severity) of the IRLSSG (International Restless Legs Syndrome Study Group)week 12
CGI-I (CGI-Improvement)week 12

Secondary

MeasureTime frame
Change from baseline in CGI-Severityat week 4, 6 and 12
CGI-therapeutic effectat week 4, 6 and 12
CGI-Side effectsat week 4, 6 and 12
Patient Global Impression (PGI)at week 1-4, 6 and 12
Visual analogue scales to assess RLS severity before sleep onset, during night and during day, and satisfaction with sleepat week 4, 6 and 12
Change from baseline in Epworth sleepiness scale (ESS)at week 4, 6 and 12
Change from baseline in RLS-QOL (Johns Hopkins Restless Legs Syndrome Quality of Life questionnaire)at week 6 and 12
Change from baseline in Augmentation Severity Rating Scale of IRLSSGat week 6 and 12
RLSRS response (≥50% reduction from baseline in RLSRS)at week 4, 6 and 12
Change in pulse rate (palpation after 5 minute supine and subsequent after 1 minute standing)week 12
Change in routine laboratory testsweek 12
Change in Physical examinations including eye examinations with ophthalmoscopic retinal eye examinations and a full skin dermatologic examinationweek 12
Change in Electrocardiogram12 weeks
Incidence of Adverse evens (including withdrawal symptoms and rebound symptoms)up to 93 days
Concomitant medication reporting12 weeks
Early withdrawal phenomena12 weeks
Assessment of sudden onset of sleep (SOOS)up to 93 days
Change in systolic and diastolic blood pressure (after 5 minutes supine and subsequently after 1 minute standing)week 12
CGI-I responder analysisat week 4, 6 and 12

Countries

United States

Outcome results

None listed

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