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ASP8825 - Study in Patients With Restless Legs Syndrome

ASP8825 Phase ⅡStudy-A Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy and Safety of ASP8825 in Patients With Restless Legs Syndrome

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00530530
Enrollment
474
Registered
2007-09-17
Start date
2007-09-30
Completion date
2009-01-31
Last updated
2014-10-29

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

Conditions

Restless Legs Syndrome

Keywords

ASP8825, Restless legs Syndrome, XP13512

Brief summary

To demonstrate the superiority of ASP8825 over placebo and the dose response in patients with restless legs syndrome

Detailed description

Three doses of ASP8825 are compared to placebo in efficacy and safety point of view in patients with restless legs syndrome

Interventions

oral

DRUGPlacebo

oral

Sponsors

Astellas Pharma Inc
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

* Patients with RLS, based on the International RSL Study Group Diagnostic Criteria * History of RLS symptoms at least 15 nights in the prior month or, if on treatment, this frequency of symptoms before treatment was started * Documented RLS symptoms for at least 4 of the 7 consecutive evenings/ nights during the baseline study period

Exclusion criteria

* A sleep disorder (e.g., sleep apnea) that may significantly affect the assessment of RLS * A history of RLS symptom augmentation or end-of-dose rebound with previous dopamine agonist treatment * Neurologic disease or movement disorder (e.g., diabetic neuropathy, Parkinson's Disease, Multiple Sclerosis, dyskinesias and dystonias

Design outcomes

Primary

MeasureTime frame
The change of the International Restless Legs Syndrome rating scale score12 weeks

Secondary

MeasureTime frame
The Pittsburgh sleep quality index12 weeks
The SF-36 Health Survey12 weeks
Patient- related Clinical Global Impression of Improvement12 weeks
The Medical Outcomes Study sleep scale12 weeks
Investigator-related Clinical Global Impression of Improvement12 weeks
The Restless Legs Syndrome QOL Questionnaire12 weeks

Countries

Japan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 25, 2026