- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05180968
DIalysis Symptom COntrol-Pruritus Outcome Trial (DISCO-POT)
Dialysis Symptom Control-Pruritus Outcome Trial: A Randomized Blinded Placebo Controlled Crossover Trial
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Several different types of medications are effective in treating uremic pruritus, but even with effective treatments, residual symptoms are common and some medications are not well tolerated. Standard of care treatments include emollients which are lotions that keep the skin hydrated and a variety of pills that target the itch pathways implicated in the disease.
The objective of the study is to determine the proportion of patients with kidney failure for whom oral nabilone provides important benefit in reducing uremic pruritis without important adverse effects. The hypothesis is that there is a substantial proportion of patients in whom oral nabilone are safe and effective beyond placebo effects.
Nabilone is currently used to treat conditions other that uremic pruritus including chronic nerve pain as well as nausea and vomiting due to chemotherapy. It has never been studied in the setting of kidney disease.
DISCO-POT is a blinded, placebo-controlled crossover trial in which participants will be followed for 11 weeks including two 4 week treatment crossover periods with a 2 week washout period in between them and an end of study visit after 1 week off study drugs.
Patients that are eligible will be randomly assigned to a crossover treatment sequence of two treatments:
- nabilone 0.5 mg orally at night for 1 week increased to nabilone 0.5mg orally twice a day for 3 weeks (over-encapsulated)
- placebo 1 capsule orally at night for 1 week increased to placebo 2 capsules twice a day for 3 weeks (over-encapsulated)
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Locations
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Alberta
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Edmonton, Alberta, Canada, T6G2P4
- University of Alberta Hospital
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Manitoba
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Winnipeg, Manitoba, Canada, R2V 3M3
- Seven Oaks General Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Age>25 years
- In-center or home hemodialysis at least two times weekly or peritoneal dialysis at least once daily for >90 days
- Generalized uremic pruritus with a mean worst VAS>40mm over the previous week (with at least 5/7 patient diary days completed)
- ALT less or equal to 3x upper limit of normal and bilirubin less than or equal to 2x upper limit of normal in the last 90 days
- Able to provide informed consent and complete patient reported outcome measurements without a language barrier or cognitive impairment
Exclusion Criteria:
- Etiology of pruritus (in the opinion of the treating physician) thought to be secondary to primary dermatologic condition, liver disease, hematologic malignancy or allergy
- Use of recreational or medical cannabis in the last 4 weeks (THC, CBD, nabilone, Sativex, Epidiolex)
- Women of childbearing potential as assessed by their clinician regardless of abstinence from sex or the use of contraception
- Planned kidney transplantation, travel or relocation in the next 3 months
- Unstable psychiatric illness (the presence of a lifetime diagnosis of a psychotic disorder, bipolar disorder, substance use disorder or current suicidal ideation)
- Symptomatic hypotension in the last 2 weeks defined as a systolic blood pressure (SBP) less than 90mmHg during or in between dialysis requiring an intervention (i.e. administration of crystalloid or colloid, termination of dialysis, change in pharmacologic therapy such as withdrawal of anti-hypertensive therapy or initiation/titration of midodrine, increase in dry weight)
- History of hypersensitivity to any cannabinoid
- Presence of any clinically significant or unstable medical conditions, including cardiovascular, liver, pulmonary disease
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Nabilone 0.5mg
Subjects will receive nabilone 0.5 mg orally at night for 1 week increased to nabilone 0.5mg orally twice a day for 3 weeks (over-encapsulated).
Drug will be dispensed from a central site to other sites and pharmacy personnel will dispense the study medications directly to research personnel or participants.
Drug dispensation will coincide with study visits at randomization and crossover and will allow research personnel to reinforced adherence.
The study oral medications may be taken at any time of day with food or water, but we will request that participants take it at the same time each day, preferably at night when uremic pruritus symptoms are usually at the worst.
If participants have any side effects or intolerability to study drugs, they may decrease the frequency of nabilone or placebo to 1 capsule by mouth once daily, preferably taken at night.
|
This intervention will consist of subjects receiving nabilone 0.5 mg orally at night for 1 week increased to nabilone 0.5mg orally twice a day for 3 weeks.
Duration of the intervention will be 4 weeks.
Other Names:
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Placebo Comparator: Oral placebo
Subjects will receive placebo 1 capsule orally at night for 1 week increased to placebo 2 capsules twice a day for 3 weeks (over-encapsulated).
Drug will be dispensed from a central site to other sites and pharmacy personnel will dispense the study medications directly to research personnel or participants.
Drug dispensation will coincide with study visits at randomization and crossover and will allow research personnel to reinforced adherence.
The study oral medications may be taken at any time of day with food or water, but we will request that participants take it at the same time each day, preferably at night when uremic pruritus symptoms are usually at the worst.
If participants have any side effects or intolerability to study drugs, they may decrease the frequency of nabilone or placebo to 1 capsule by mouth once daily, preferably taken at night.
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This intervention will consist of subjects receiving placebo 1 capsule orally at night for 1 week increased to placebo 2 capsules twice a day for 3 weeks.
Duration of the intervention will be 4 weeks.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change from baseline in worst uremic pruritis severity rating between treatment arms relative to MID
Time Frame: Measured at study baseline and weeks 1,2,3,4,5,6,7,8,9,10
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Measured using Visual Analogue Scale (VAS)
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Measured at study baseline and weeks 1,2,3,4,5,6,7,8,9,10
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of participants with safety outcomes including adverse events related to study drug
Time Frame: Measured at study baseline and weeks 1,2,3,4,5,6,7,8,9,10,11
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serious adverse events, adverse events leading to drug discontinuation, hospitalization or emergency room visit for altered level of consciousness, fall, fracture, death, symptomatic hypotension requiring an intervention
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Measured at study baseline and weeks 1,2,3,4,5,6,7,8,9,10,11
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Change in uremic pruritis severity
Time Frame: Measured at study baseline and weeks 1,2,3,4,5,6,7,8,9,10
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Measured as change from baseline in mean Visual Analogue Scale (VAS)
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Measured at study baseline and weeks 1,2,3,4,5,6,7,8,9,10
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Change in uremic pruritis severity
Time Frame: Measured at study baseline and weeks 1,2,3,4,5,6,7,8,9,10
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Measured as change from baseline in mean Verbal Rating Scale (VRS)
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Measured at study baseline and weeks 1,2,3,4,5,6,7,8,9,10
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Change in health-related quality of life
Time Frame: Measured at study baseline and weeks 3 and 4 of each crossover
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Measured using the Dermatology Quality of Life Index (DLQI)
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Measured at study baseline and weeks 3 and 4 of each crossover
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Change in health-related quality of life
Time Frame: Measured at study baseline and weeks 3 and 4 of each crossover
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Measured using the EQ-5D 5 Level (EQ-5D-5L)
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Measured at study baseline and weeks 3 and 4 of each crossover
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Change in health-related quality of life
Time Frame: Measured at study baseline and weeks 3 and 4 of each crossover
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Measured using the Patient Global Impression (PGI)
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Measured at study baseline and weeks 3 and 4 of each crossover
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Effect of nabilone on sleep quality
Time Frame: Measured at study baseline and weeks 3 and 4 of each crossover
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Measured using the Pittsburgh Sleep Quality Index (PSQI)
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Measured at study baseline and weeks 3 and 4 of each crossover
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: David Collister, MD, PhD, University of Manitoba
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Skin Diseases
- Urologic Diseases
- Disease Attributes
- Renal Insufficiency
- Renal Insufficiency, Chronic
- Skin Manifestations
- Chronic Disease
- Female Urogenital Diseases
- Female Urogenital Diseases and Pregnancy Complications
- Urogenital Diseases
- Male Urogenital Diseases
- Kidney Diseases
- Kidney Failure, Chronic
- Pruritus
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Central Nervous System Depressants
- Autonomic Agents
- Peripheral Nervous System Agents
- Analgesics
- Sensory System Agents
- Analgesics, Non-Narcotic
- Antiemetics
- Gastrointestinal Agents
- Hormones
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Tranquilizing Agents
- Psychotropic Drugs
- Anti-Anxiety Agents
- Hallucinogens
- Cannabinoid Receptor Agonists
- Cannabinoid Receptor Modulators
- Dronabinol
- Nabilone
Other Study ID Numbers
- B2021:096
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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