DIalysis Symptom COntrol-Restless Legs Syndrome Trial

NCT ID: NCT03806530

Last Updated: 2022-09-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

52 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-05-01

Study Completion Date

2022-07-19

Brief Summary

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The DISCO-RLS Trial is a randomized controlled trial to determine the safety and efficacy of pharmacologic therapy (ropinirole versus placebo and gabapentin versus placebo) for the treatment of Restless Legs Syndrome in patients with End Stage Renal Disease requiring hemodialysis.

Detailed Description

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The DISCO-RLS Trial is a randomized controlled trial to determine whether or not a fixed, low-dose therapy with ropinirole and/or gabapentin is safe and effective compared to either alone or placebo for the treatment of Restless Legs Syndrome in patients with End Stage Renal Disease receiving hemodialysis. DISCO-RLS will randomize a total of 80 participants. Participants will be randomized to 1 of 8 treatment sequences. Each sequence is composed of 4 periods and in each period participants will receive 1 of 4 possible combinations of study medications (gabapentin+ropinirole, gabapentin+placebo ropinirole, ropinirole+placebo gabapentin, placebo gabapentin+placebo ropinirole). Eligible participants will complete a 1-week Run-In period followed by 4 periods of 4 weeks each for a total of 16-week follow-up after randomization. A final study visit will be completed at the end of the 16 week follow-up.

Conditions

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End Stage Renal Disease Restless Legs Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Participants will be randomly allocated to 1 of 8 treatment sequences. Each sequence is composed of 4 periods and in each period participants will receive 1 of 4 possible combinations of study medications (gabapentin+ropinirole, gabapentin+placebo ropinirole, ropinirole+placebo gabapentin, placebo gabapentin+placebo ropinirole).
Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
The study interventions will be blinded.

Study Groups

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Gabapentin + Ropinirole

Gabapentin 100 mg capsule, once daily for 4 weeks. Ropinirole 0.50 mg capsule, once daily for 4 weeks.

Group Type ACTIVE_COMPARATOR

Gabapentin

Intervention Type DRUG

100 mg capsule

Ropinirole

Intervention Type DRUG

0.50 mg capsule

Gabapentin + Placebo Ropinirole

Gabapentin 100 mg capsule, once daily for 4 weeks. Ropinirole placebo 0.50 mg capsule, once daily for 4 weeks.

Group Type PLACEBO_COMPARATOR

Gabapentin

Intervention Type DRUG

100 mg capsule

Placebo Ropinirole

Intervention Type DRUG

Placebo capsule

Ropinirole + Placebo Gabapentin

Gabapentin placebo 100 mg capsule, once daily for 4 weeks. Ropinirole 0.50 mg capsule, once daily for 4 weeks.

Group Type PLACEBO_COMPARATOR

Ropinirole

Intervention Type DRUG

0.50 mg capsule

Placebo Gabapentin

Intervention Type DRUG

Placebo capsule

Placebo Gabapentin + Placebo Ropinirole

Gabapentin placebo 100 mg capsule, once daily for 4 weeks. Ropinirole placebo 0.50 mg capsule, once daily for 4 weeks.

Group Type PLACEBO_COMPARATOR

Placebo Gabapentin

Intervention Type DRUG

Placebo capsule

Placebo Ropinirole

Intervention Type DRUG

Placebo capsule

Interventions

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Gabapentin

100 mg capsule

Intervention Type DRUG

Ropinirole

0.50 mg capsule

Intervention Type DRUG

Placebo Gabapentin

Placebo capsule

Intervention Type DRUG

Placebo Ropinirole

Placebo capsule

Intervention Type DRUG

Other Intervention Names

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GD-Gabapentin pms-Ropinirole Placebo Placebo

Eligibility Criteria

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Inclusion Criteria

* Age greater or equal to 18 years
* Has received at least 90 days of in-center hemodialysis at a frequency at least 3 times weekly
* RLS defined by 2012 Revised International Restless Legs Syndrome Study Group (IRLSSG) Diagnostic Criteria for RLS and of moderate severity defined by an IRLS score greater or equal to 10 with symptoms more than 2 days per week (see IRLS question #7)
* Provides informed consent

Exclusion Criteria

* Hemoglobin\<80g/L in the previous 4 weeks
* Intolerance to a dopamine agonists (e.g. pramipexole or ropinirole) or alpha 2 delta ligands (e.g. gabapentin, Neurontin, pregabalin, or Lyrica)
* Change in medication to treat RLS in previous 4 weeks
* Current pregnancy
* Planned kidney transplantation, travel or relocation in the next 6 months
* Unable to complete RLS symptom and HRQOL measurements due to language barrier or cognitive impairment
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Population Health Research Institute

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Dr. Michael Walsh, PhD,FRCPC(C)

Role: PRINCIPAL_INVESTIGATOR

Population Health Research Institute, McMaster University

Locations

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Nova Scotia Health Authority

Halifax, Nova Scotia, Canada

Site Status

St. Joseph's Hamilton Healthcare

Hamilton, Ontario, Canada

Site Status

The Ottawa Hospital

Ottawa, Ontario, Canada

Site Status

Countries

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Canada

References

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Collister D, Pohl K, Herrington G, Lee SF, Rabbat C, Tennankore K, Zimmermann D, Tangri N, Wald R, Manns B, Suri RS, Nadeau-Fredette AC, Goupil R, Silver SA, Walsh M. The DIalysis Symptom COntrol-Restless Legs Syndrome (DISCO-RLS) Trial: A Protocol for a Randomized, Crossover, Placebo-Controlled Blinded Trial. Can J Kidney Health Dis. 2020 Nov 26;7:2054358120968959. doi: 10.1177/2054358120968959. eCollection 2020.

Reference Type DERIVED
PMID: 33294203 (View on PubMed)

Other Identifiers

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DISCO_RLS_001

Identifier Type: -

Identifier Source: org_study_id

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