12-Week Efficacy And Safety Of Pregabalin In Treating Restless Legs Syndrome (RLS) Subjects - Full Text View

Purpose

The purpose of this study is to assess efficacy and safety of pregabalin in treating moderate to severe Restless Legs Syndrome in comparison to placebo.

Condition	Intervention	Phase
Restless Legs Syndrome	Drug: Placebo Drug: pregabalin	Phase 3


Study Type:	Interventional
Study Design:	Allocation: Randomized Intervention Model: Parallel Assignment Masking: Double (Participant, Investigator) Primary Purpose: Treatment
Official Title:	Randomized Double-Blind, 12-Week Study Of Pregabalin In Subjects With Restless Legs Syndrome

Resource links provided by NLM:

Genetics Home Reference related topics: restless legs syndrome

MedlinePlus related topics: Restless Legs

Drug Information available for: Pregabalin

U.S. FDA Resources

Further study details as provided by Pfizer:

Primary Outcome Measures:

Changes from baseline in RLS symptom severity using the International Restless Leg Group Rating Scale (IRLS) total score for efficacy assessment [ Time Frame: up to 12 weeks ]
The proportion of subjects responding to treatment using the Clinical Global Impression - Improvement (CGI-I) scale for efficacy assessment [ Time Frame: up to 12 weeks ]

Secondary Outcome Measures:

Subjective Sleep Questionnaire (SSQ - Subjective WASO) [ Time Frame: up to 12 weeks ]
RLS Next Day Impact (RLS-NDI) [ Time Frame: up to 12 weeks ]
Limb pain rating using a numerical rating scale (Limb Pain - NRS) [ Time Frame: up to 12 weeks ]
Clinical Global Impressions - Severity (CGI-S) [ Time Frame: up to 12 weeks ]
Medical Outcomes Study - Sleep Scale (MOS - SS) [ Time Frame: up to 12 weeks ]
Impact on Life (IRLS symptom impact sub-score) [ Time Frame: up to 12 weeks ]
RLS-Quality of Life Scale (RLS-QoL) [ Time Frame: up to 12 weeks ]
Medical Outcomes Study - Short Form 36 (SF-36) [ Time Frame: up to 12 weeks ]
Work Productivity and Activity Impairment - Specific Health Problem (WPAI-SHP) [ Time Frame: up to 12 weeks ]
Profile of Mood States (POMS) [ Time Frame: up to 12 weeks ]
Adverse events from spontaneous reports will be monitored throughout the trial and summarized by treatment group [ Time Frame: up to 12 weeks ]
Sheehan Suicidality Tracking Scale (S-STS) will be utilized to assess the risk of suicide [ Time Frame: up to 12 weeks ]
Changes in RLS symptoms following the discontinuation of study drug at the end of treatment will be evaluated by collection of the IRLS scores at the end of the drug taper period at Week 13 [ Time Frame: week 13 ]


Enrollment:	0
Study Start Date:	May 2010
Estimated Study Completion Date:	August 2011
Estimated Primary Completion Date:	August 2011 (Final data collection date for primary outcome measure)

Arms	Assigned Interventions
Placebo Comparator: Placebo	Drug: Placebo Placebo, orally administered once a day, 1-3 hours before bedtime for 12 weeks
Experimental: Pregabalin 150 mg/day	Drug: pregabalin pregabalin 150 mg, orally administered once a day, 1- 3 hours before the bedtime for 12 weeks Other Name: Lyrica
Experimental: Pregabalin 300 mg/day	Drug: pregabalin pregabalin 300 mg, orally administered once a day, 1- 3 hours before the bedtime for 12 weeks Other Name: Lyrica

Eligibility


Ages Eligible for Study:	18 Years and older (Adult, Senior)
Sexes Eligible for Study:	All
Accepts Healthy Volunteers:	No

Criteria

Inclusion Criteria:

Idiopathic Restless Legs Syndrome with the presence of all four clinical manifestations of RLS:
RLS symptoms occur predominantly in the evening
RLS history at least 6 months
International Restless Legs Study Group Rating Scale (IRLS) greater than or equal to 15 at the beginning and the end of placebo run-in
Have greater than or equal to 15 nights with RLS symptoms in the month prior to screening

Exclusion Criteria:

Any secondary RLS
Current augmentation due to RLS treatment
Placebo responders identified during the placebo run-in

Contacts and Locations

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01061372

Sponsors and Collaborators

Pfizer

Investigators


Study Director:	Pfizer CT.gov Call Center	Pfizer

More Information

Additional Information:

To obtain contact information for a study center near you, click here. This link exits the ClinicalTrials.gov site


Responsible Party:	Director, Clinical Trial Disclosure Group, Pfizer, Inc.
ClinicalTrials.gov Identifier:	NCT01061372 History of Changes
Other Study ID Numbers:	A0081184
Study First Received:	February 1, 2010
Last Updated:	June 28, 2010

Keywords provided by Pfizer:


RLS

Additional relevant MeSH terms:


Syndrome Psychomotor Agitation Restless Legs Syndrome Disease Pathologic Processes Dyskinesias Neurologic Manifestations Nervous System Diseases Psychomotor Disorders Neurobehavioral Manifestations Signs and Symptoms Sleep Disorders, Intrinsic Dyssomnias Sleep Wake Disorders Parasomnias	Mental Disorders Pregabalin Analgesics Sensory System Agents Peripheral Nervous System Agents Physiological Effects of Drugs Anticonvulsants Calcium Channel Blockers Membrane Transport Modulators Molecular Mechanisms of Pharmacological Action Anti-Anxiety Agents Tranquilizing Agents Central Nervous System Depressants Psychotropic Drugs

ClinicalTrials.gov processed this record on September 20, 2017