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pramipexole

Phase 3

Restless Legs Syndrome | Small molecule | Other |Pfizer, Inc.|Last Updated: Feb 15, 2021

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment85
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00991276Polysomnography Study Of Pregabalin And Pramipexole Versus Placebo In Patients With Restless Legs Syndrome And Associated Sleep DisturbancePHASE3 COMPLETED 85Dec 1, 2009Jun 1, 2011Feb 15, 202141 United States
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Study Endpoints
Primary Endpoints
Wake After Sleep Onset (WASO)
Week 5 (End of Intervention Period 1), Week 11 (End of Intervention Period 2) and Week 17 (End of Intervention Period 3) or Early Termination (ET)

WASO as determined by Polysomnography (PSG) was time spent awake from sleep onset to final awakening. WASO= Wake Time During Sleep \[WTDS\] epochs + Wake Time After Sleep \[WTAS\] epochs)/2. WTDS: number of wake epochs (30 seconds of PSG recording) after onset of persistent sleep and prior to final awakening or end of 8-hour recording/2 and WTAS: number of wake epochs after final awakening until end of the 8-hour recording/2. WASO was measured on 2 consecutive days within a period. Arithmetic mean of WASO of each participant for all periods was taken prior to employing linear mixed model.

Secondary Endpoints
Periodic Limb Movement Arousal Index (PLMAI)
Week 5 (End of Intervention Period 1), Week 11 (End of Intervention Period 2) and Week 17 (End of Intervention Period 3) or ET
Subjective Total Sleep Time (sTST)
Week 3 and Week 5 of Each Intervention Period or ET
Minutes of Stage N1, N2, N3 and R Sleep
Week 5 (End of Intervention Period 1), Week 11 (End of Intervention Period 2) and Week 17 (End of Intervention Period 3) or ET
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelCROSSOVER
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
pregabalinEXPERIMENTAL -
placeboPLACEBO_COMPARATOR -
pramipexoleACTIVE_COMPARATOR -
Interventions
NameTypeDescription
pregabalinDRUGcapsules; 300 mg once-per-day; 4 weeks of treatment
placeboDRUGcapsules; 0 mg once-per-day; 4 weeks of treatment
pramipexoleDRUGcapsules; 0.5 mg once-per-day; 4 weeks of treatment
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites41

Inclusion Criteria: * Diagnosis of restless legs syndrome with a total score of 15 or more points on the International RLS rating scale (IRLS). * RLS symptoms interfering with sleep on 3 or more nights per week for at least 6 months. * PSG confirmation of WASO of at least 60 min, PLMI of 10 or more...

Countries:United States
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