Skip to content

Study of the Frequency and Characteristics of Pain Symptoms in Restless Legs Syndrome

Study of the Frequency and Characteristics of Pain Symptoms in Restless Legs Syndrome

Status
Not yet recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07679087
Acronym
PAIN-RLS
Enrollment
1000
Registered
2026-07-01
Start date
2026-07-01
Completion date
2027-08-01
Last updated
2026-07-01

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

Conditions

RLS

Keywords

RLS, Pain, Sleep

Brief summary

Restless Legs Syndrome (RLS) is a neurological disorder affecting between 4% and 29% of adults. It is characterized by an urge to move the legs or other parts of the body, often accompanied by unpleasant and sometimes painful sensations. The pathophysiology of RLS, whether associated with pain or not, remains poorly understood, and only a limited number of studies have specifically investigated this aspect. The aim of this study is to determine the prevalence of the painful component of symptoms in a large cohort of patients with RLS, to further characterize its clinical features, and to assess its impact on patients' quality of life. This work could improve the identification of patients experiencing pain, enhance our understanding of pain characteristics in RLS, and help optimize patient management. Furthermore, in the context of emerging therapeutic approaches such as neuromodulation, a better characterization of pain in RLS may contribute to the development and evaluation of new treatment strategies. This is particularly relevant given the high prevalence of RLS and its substantial impact on patients' quality of life. Participants will be recruited either through their neurologist during routine follow-up visits at the Neurology Department of Clermont-Ferrand University Hospital or through the France Ekbom Association. Individuals interested in participating will be provided with access to the online questionnaire via a QR code or a dedicated web link. One thousand patients will be include in this study (RIPH type 3). The online questionnaire is expected to take approximately 30 minutes to complete. It includes the collection of demographic data (age, sex, lifestyle factors, weight, height, employment status, comorbidities, and dietary habits), as well as questions regarding the patient's medical history and sleep habits. The questionnaire also includes validated instruments assessing sleep, pain, RLS severity, anxiety and depression, and quality of life. At the end of the questionnaire, participants will be invited to take part in an optional ancillary study aimed at validating the French translation of the Restless Legs Syndrome Quality of Life questionnaire (RLS-QOL). Participants who agree to participate will complete the questionnaire once at baseline and will subsequently receive an email reminder to complete it a second time two weeks later. This test-retest procedure will be used to assess the reproducibility of the French-adapted version of the questionnaire.

Interventions

OTHERPatients with RLS

The online questionnaire is expected to take approximately 30 minutes to complete. It includes the collection of demographic data (age, sex, lifestyle factors, weight, height, employment status, comorbidities, and dietary habits), as well as questions regarding the patient's medical history and sleep habits. The questionnaire also includes validated instruments assessing sleep, pain, RLS severity, anxiety and depression, and quality of life. At the end of the questionnaire, participants will be invited to take part in an optional ancillary study aimed at validating the French translation of the Restless Legs Syndrome Quality of Life questionnaire (RLS-QOL). Participants who agree to participate will complete the questionnaire once at baseline and will subsequently receive an email reminder to complete it a second time two weeks later.

Sponsors

University Hospital, Clermont-Ferrand
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

* Male or female participants aged 18 years or older. * Diagnosis of Restless Legs Syndrome (RLS) according to the criteria of the International Classification of Sleep Disorders, Third Edition (ICSD-3). * French-speaking.

Exclusion criteria

* Patient under guardianship, curatorship, or legal protection measures. * Patient who has never had an appointment with a neurologist as part of their SJSR care pathway.

Design outcomes

Primary

MeasureTime frame
Pain evaluation according to the Brief Pain Inventory (PBI)at day 0

Secondary

MeasureTime frame
Pain characteristics using the DN4 questionnaireat day 0
RLS severity using the International Restless Legs Syndrome Rating Scale (IRLS)at day 0
Fibromyalgia using the FIRST (Fibromyalgia Rapid Screening Tool)at day 0
Biopsychosocial dimensions of pain according to the Pain Catastrophizing Scale (PCS).at day 0
Anxiety and depression using the Hospital Anxiety and Depression Scale (HADS)at day 0
Quality of life using the EQ-5D-5Lat day 0
Daytime sleepiness using Epworth Sleepiness Scale (ESS).at day 0
RLS-specific quality of life using the Restless Legs Syndrome Quality of Life questionnaire (RLS-QOL).at day 0

Countries

France

Contacts

CONTACTLise Laclautre
promo_interne_drci@chu-clermontferrand.fr+33473754963
PRINCIPAL_INVESTIGATORLivia FANTINI

University Hospital, Clermont-Ferrand

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 2, 2026