Multiple SclerosisPhase 2NCT05269628
Mechanisms of Cannabidiol in Persons With MS: the Role of Sleep and Pain Phenotype
A Phase 2 study testing Cannabidiol (CBD) and Tetrahydrocannabinol (THC) in people with Multiple Sclerosis and Sleep, run by Tiffany J. Braley, MD, MS at 1 site in United States.
Trial summary
The purpose of this research study is to compare the effects of cannabidiol (CBD), tetrahydrocannabinol (THC), or both, on sleep and pain in persons with multiple sclerosis (MS). Little is known about how CBD and/or THC may help sleep, reduce pain, or perhaps even treat pain through better sleep. Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Multiple Sclerosis, Sleep, Pain
- What is being tested?
- Cannabidiol (CBD) and Tetrahydrocannabinol (THC)
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 166 participants
- Where
- 1 siteUnited States
- Study dates
- 25 Mar 2022to 30 Aug 2027
- Phase
- Phase 2
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients with clinically definite MS (those who are on a disease modifying therapy must be on a stable dose without evidence of liver toxicity for at least 3 months);
- Presence of chronic pain defined as moderate to severe pain for at least 3 months, based on a 0-10 numeric rating scale (NRS);
- Willingness to maintain stable analgesic regimen during study period;
- Recent serum aspartate transaminase, alanine transaminase, and bilirubin testing within 90 days of screening;
Who cannot join
- Current shift work sleep disorder, or narcolepsy diagnosed with polysomnography and multiple sleep latency test;
- History of MS relapse within the last 30 days prior to screening (participants will be considered eligible after the 30-day window);
- Pain due to cancer;
- Pregnancy or breastfeeding;
- Current cannabinoid use (participants may be reconsidered for inclusion after 30-day washout) and/or unwillingness to abstain from cannabinoids in any form from 30 days prior to the study of the study drugs and until the last follow up phone call at the end of the study (30 - 37 days after taking the last dose of the study drug).
- Unwillingness to use contraception from screening until the end of drug treatment
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- Current suicidal ideation (SI) with intent and/or plan; these individuals will be assessed by a study psychologist and referred for urgent mental health treatment as indicated;
- Current severe depression as indicated by a PHQ-9 score of ≥ 17 that includes indicators of significant depressed mood (sum of items #1 and #2 ≥ 5).
- History of mania or schizophrenia diagnosis
- Known hypersensitivity to cannabinoids in general, or Epidiolex® or Dronabinol specifically or its excipients (e.g., sesame oil)
- History of the following cardiovascular conditions: recent myocardial infarction or stroke (last 6 months prior to screening), unstable angina, left ventricular hypertrophy, mitral valve prolapses, severe coronary artery disease, NYHA class III or IV congestive heart failure.
- History severe hepatic impairment (must have blood AST ≤ 2.0x ULN, ALT ≤ 2,0x ULN, and bilirubin ≤ 1.5x ULN within the last 90 days (AST, ALT, bilirubin testing will be required within 90 days of screening);
- History of seizure disorder (recurrent, unprovoked seizures not explained by a known reversible cause) or history of certain types of head injury that could cause an increased risk of seizures;
- History of prescription or illicit drug abuse (such as cocaine, amphetamine, methamphetamine, heroin);
- Current risk for alcohol misuse as indicated by a score of ≥ 8 on the Alcohol Use Disorders Identification Test (AUDIT) self-report measure.
- Current warfarin, valproate or clobazam use.
- Current use of known moderate or strong inhibitors of CYP3A4 [topical ketoconazole, and temporary (<= 4 week) oral courses of clarithromycin, fluconazole and itraconazole will be allowed].
- Current use of strong inducers of CYP3A4 or CYP2C19 (does not include glucocorticoids or modafinil/armodafinil, which are permitted),
- Current use of moderate or strong inhibitors/inducers of CYP2C9, and narrow therapeutic index drugs (e.g., cyclosporine, amphotericin B).
- Current use of known non-minor Sensitive CYP2C19 Substrates, with the exception of some proton pump inhibitors (e.g., esoprazole, omeprazole)), periodic self-limited courses of diazepam (e.g., for MRI sedation) and submaximal doses of some antidepressant class medications (e.g., citalopram, and escitalopram), which will be permitted by the discretion of the treating neurologist PI.
- Refusal to avoid grapefruit or grapefruit products during the study treatment interval.
- Current use of opioids (tramadol permitted).
- Employed as a commercial driver or employed in an occupation that involves extreme heights or use of heavy machinery.
- History of car crashes or near-crashes due to untreated sleepiness that has led to near-misses in the past 6 months.
- Cognitive dysfunction as indicated by >=3 errors on the six-item cognitive screener
- Expanded Disability Status Scale (EDSS) score >=8.0.
- Blood pressure at screening above 180 mmHg systolic and/or 120 mmHg diastolic, or below 90 mmHg systolic and or 60 mmHg diastolic, or history of syncope related to orthostatic hypotension;
- Resting heart rate at screening less than 50 bpm or greater than 100 bpm;
- Any other treatment or medical, neurological, sleep, or psychiatric condition that, in the opinion of the investigators, could affect participant safety or eligibility.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
University of Michigan
Ann Arbor, Michigan, 48109
David Johnson, 734-615-9650, johnsodj@umich.edu
Tiffany Braley
About this study
Official title: Mechanisms of Cannabidiol (CBD) in Persons With Multiple Sclerosis (MS): the Role of Sleep and Pain Phenotype
The purpose of this research study is to compare the effects of cannabidiol (CBD), tetrahydrocannabinol (THC), or both, on sleep and pain in persons with multiple sclerosis (MS). Little is known about how CBD and/or THC may help sleep, reduce pain, or perhaps even treat pain through better sleep.
- Conditions
- Multiple Sclerosis, Sleep, Pain
- Being tested
- Cannabidiol (CBD), Tetrahydrocannabinol (THC), Placebo CBD, Placebo THC
- Keywords
- Cannabidiol
- Medical subject headings
- Multiple Sclerosis, Pain
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Cannabidiol (CBD)Drug
Also called Epidiolex® 100 mg/mL solution
Epidiolex® dose will be 0.5 mL (50 mg) twice daily during the first seven days of active treatment (half of full anticipated dose), followed by 1 mL (100 mg) twice daily for the remainder of the treatment interval (full dose). If the full dose (100 mg twice daily) is not tolerated by participants, they will have the option of going down to the original half-dose (50 mg twice daily).
Participants who go back to the half-dose of Cannabidiol (50 mg twice daily) also have the option to request once-per-day dosing with study drug taken at preferred time of day. Participants who request once-per-day dosing will not exceed a total daily dose 100 mg Cannabidiol per day. Participants who are tolerating the full-dose of medication (Cannabidiol 100 mg twice daily) will not be allowed to combine these doses into one daily dose.
Tetrahydrocannabinol (THC)Drug
Also called Marinol®, dronabinol capsules
Dronabinol dose will be 2.5 mg twice daily during the first seven days of active treatment (half of full anticipated dose), followed by 5 mg twice daily for the remainder of the treatment interval (full dose). If the full dose (5 mg twice daily) is not tolerated by participants, they will have the option of going down to the original half-dose (2.5 mg twice daily).
Participants who go back to the half-dose of Dronabinol (2.5 mg twice daily) also have the option to request once-per-day dosing with study drug taken at preferred time of day. Participants who request once-per-day dosing will not exceed a total daily dose 5 mg Dronabinol per day. Participants who are tolerating the full-dose of medication (Dronabinol 5 mg BID) will not be allowed to combine these doses into one daily dose.
Placebo CBDDrug
Placebo solution will be taken twice per day, using the same dosing regimen as described for Epidiolex®.
Placebo THCDrug
Placebo capsules will be taken twice per day in the same schedule and manner as active dronabinol.
| Study group | Role | What they receive |
|---|---|---|
| Cannabidiol (CBD) | Experimental | Cannabidiol (Epidiolex® 100 mg/mL solution) will initially be prescribed as 50 mg (0.5 mL) twice daily during the first seven days of active treatment (half of full anticipated dose), followed by 100 mg (1 mL) twice daily for the remainder of the treatment interval (full dose).
PLUS Placebo Tetrahydrocannabinol (TCH) capsules which contain no active ingredients. Matching placebo capsules will be taken twice per day in the same schedule and manner as active dronabinol. Receives: Drug: Cannabidiol (CBD); Drug: Placebo THC |
| Tetrahydrocannabinol (THC) | Active comparator | Tetrahydrocannabinol (Dronabinol capsules) will initially be prescribed as 2.5 mg twice daily during the first seven days of active treatment (half of full anticipated dose), followed by 5 mg twice daily for the following days of active treatment (full dose).
PLUS Placebo CBD (A matching placebo oral solution to Epidiolex® will be used that consists of all of the excipients in the active solution without the cannabidiol component). The placebo will be dosed in the same schedule and manner as active Epidiolex®. Receives: Drug: Tetrahydrocannabinol (THC); Drug: Placebo CBD |
| CBD + THC | Active comparator | Cannabidiol (Epidiolex® solution) will initially be prescribed as 50 mg (0.5 mL) twice daily during the first seven days of active treatment (half of full anticipated dose), followed by 100 mg (1 mL) twice daily for the remainder of the treatment interval (full dose).
PLUS Tetrahydrocannabinol (Dronabinol capsules) will initially be prescribed as 2.5 mg twice daily during the first seven days of active treatment (half of full anticipated dose), followed by 5 mg twice daily for the following days of active treatment (full dose). Receives: Drug: Cannabidiol (CBD); Drug: Tetrahydrocannabinol (THC) |
| Placebo CBD + Placebo THC | Placebo comparator | Placebo CBD (A matching placebo oral solution to Epidiolex® will be used that consists of all of the excipients in the active solution without the cannabidiol component). The placebo will be dosed in the same schedule and manner as the active CBD.
PLUS Placebo Tetrahydrocannabinol (TCH) capsules which contain no active ingredients. Matching placebo capsules will be taken twice per day in the same schedule and manner as active drug. Receives: Drug: Placebo CBD; Drug: Placebo THC |
What is being measured
The primary outcome is the main question the study is designed to answer.
Mean change in sleep bout length
Measured with in-laboratory polysomnography, reported as average length of continuous bouts of sleep, for each sleep stage and total sleep (in minutes).
Measured: Baseline, 12 weeks
Change in Walsh Spectral Entropy
Measured with in-laboratory polysomnography, computed from EEG sleep stage data to quantify hypnogram regularity (dimensionless, values range from 0-1)
Measured: Baseline, 12 weeks
Change in Transition Entropy
Measured with in-laboratory polysomnography. Entropy measure computed from sleep stage transition matrix that quantifies hypnogram regularity (dimensionless, values range from 0-1)
Measured: Baseline, 12 weeks
Change of center of activity
Measured with in-laboratory polysomnography. Weighted mean temporal location over the night of all 30 second epochs scored as N3 and Rapid eye movement (REM) sleep
Measured: Baseline, 12 weeks
Change in sleep rhythmicity
Measured by actigraphy. Probability of being in the same sleep/wake state 24h apart
Measured: Baseline, 12 weeks
Change in sleep regularity
Measured by actigraphy in hours.
Measured: Baseline, 12 weeks
Change in sleep continuity and duration
Measured by actigraphy in minutes to obtain time in wakefulness after sleep onset (WASO) and total sleep time.
Measured: Baseline, 12 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Mar 2022
- Study start25 Mar 2022
- Primary completion30 Aug 2027 (estimated)
- Study completion30 Aug 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Multiple SclerosisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Factorial
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Outcomes assessor
- Enrolment
- 166 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Tiffany J. Braley, MD, MS
- Sponsor type
- University, hospital or other
- Collaborators
- National Center for Complementary and Integrative Health (NCCIH)
- Responsible party
- Sponsor-investigator, Tiffany J. Braley, MD, MS, University of Michigan
- Investigators
- Tiffany Braley, Principal investigator, University of Michigan
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05269628
- Sponsor's protocol ID
- HUM00190734
- Other IDs
- 1R01AT011341-01
- Status last verified
- Jul 2026
- First submitted
- 13 Feb 2022
- Last updated
- 17 Jul 2026
- Results posted
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 17 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Mechanisms of Cannabidiol (CBD) in Persons With Multiple Sclerosis (MS): the Role of Sleep and Pain Phenotype
- ClinicalTrials.gov ID
- NCT05269628
- Acronym / sponsor ID
- HUM00190734
- Conditions
- Multiple Sclerosis, Sleep, Pain
- Keywords
- Cannabidiol
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 166 participants (estimated)
- Lead sponsor
- Tiffany J. Braley, MD, MSUniversity, hospital or other
- Collaborators
- National Center for Complementary and Integrative Health (NCCIH)
- Study start
- 25 Mar 2022 (actual)
- Primary completion
- 30 Aug 2027 (estimated)
- Study completion
- 30 Aug 2027 (estimated)
- First posted
- 8 Mar 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this research study is to compare the effects of cannabidiol (CBD), tetrahydrocannabinol (THC), or both, on sleep and pain in persons with multiple sclerosis (MS). Little is known about how CBD and/or THC may help sleep, reduce pain, or perhaps even treat pain through better sleep.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Factorial
- Masking
- Triple blind (participant, care provider, outcomes assessor)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Cannabidiol (CBD) | Experimental | Drug: Cannabidiol (CBD), Drug: Placebo THCCannabidiol (Epidiolex® 100 mg/mL solution) will initially be prescribed as 50 mg (0.5 mL) twice daily during the first seven days of active treatment (half of full anticipated dose), followed by 100 mg (1 mL) twice daily for the remainder of the treatment interval (full dose). PLUS Placebo Tetrahydrocannabinol (TCH) capsules which contain no active ingredients. Matching placebo capsules will be taken twice per day in the same schedule and manner as active dronabinol. |
| Tetrahydrocannabinol (THC) | Active comparator | Drug: Tetrahydrocannabinol (THC), Drug: Placebo CBDTetrahydrocannabinol (Dronabinol capsules) will initially be prescribed as 2.5 mg twice daily during the first seven days of active treatment (half of full anticipated dose), followed by 5 mg twice daily for the following days of active treatment (full dose). PLUS Placebo CBD (A matching placebo oral solution to Epidiolex® will be used that consists of all of the excipients in the active solution without the cannabidiol component). The placebo will be dosed in the same schedule and manner as active Epidiolex®. |
| CBD + THC | Active comparator | Drug: Cannabidiol (CBD), Drug: Tetrahydrocannabinol (THC)Cannabidiol (Epidiolex® solution) will initially be prescribed as 50 mg (0.5 mL) twice daily during the first seven days of active treatment (half of full anticipated dose), followed by 100 mg (1 mL) twice daily for the remainder of the treatment interval (full dose). PLUS Tetrahydrocannabinol (Dronabinol capsules) will initially be prescribed as 2.5 mg twice daily during the first seven days of active treatment (half of full anticipated dose), followed by 5 mg twice daily for the following days of active treatment (full dose). |
| Placebo CBD + Placebo THC | Placebo comparator | Drug: Placebo CBD, Drug: Placebo THCPlacebo CBD (A matching placebo oral solution to Epidiolex® will be used that consists of all of the excipients in the active solution without the cannabidiol component). The placebo will be dosed in the same schedule and manner as the active CBD. PLUS Placebo Tetrahydrocannabinol (TCH) capsules which contain no active ingredients. Matching placebo capsules will be taken twice per day in the same schedule and manner as active drug. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Patients with clinically definite MS (those who are on a disease modifying therapy must be on a stable dose without evidence of liver toxicity for at least 3 months);
- Presence of chronic pain defined as moderate to severe pain for at least 3 months, based on a 0-10 numeric rating scale (NRS);
- Willingness to maintain stable analgesic regimen during study period;
- Recent serum aspartate transaminase, alanine transaminase, and bilirubin testing within 90 days of screening;
Key exclusion criteria (29 listed)
- Current shift work sleep disorder, or narcolepsy diagnosed with polysomnography and multiple sleep latency test;
- History of MS relapse within the last 30 days prior to screening (participants will be considered eligible after the 30-day window);
- Pain due to cancer;
- Pregnancy or breastfeeding;
- Current cannabinoid use (participants may be reconsidered for inclusion after 30-day washout) and/or unwillingness to abstain from cannabinoids in any form from 30 days prior to the study of the study drugs and until the last follow up phone call at the end of the study (30 - 37 days after taking the last dose of the study drug).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Cannabidiol (CBD)Also: Epidiolex® 100 mg/mL solutionEpidiolex® dose will be 0.5 mL (50 mg) twice daily during the first seven days of active treatment (half of full anticipated dose), followed by 1 mL (100 mg) twice daily for the remainder of the treatment interval (full dose). If the full dose (100 mg twice daily) is not tolerated by participants, they will have the option of going down to the original half-dose (50 mg twice daily). Participants who go back to the half-dose of Cannabidiol (50 mg twice daily) also have the option to request once-per-day dosing with study drug taken at preferred time of day. Participants who request once-per-day dosing will not exceed a total daily dose 100 mg Cannabidiol per day. Participants who are tolerating the full-dose of medication (Cannabidiol 100 mg twice daily) will not be allowed to combine these doses into one daily dose. | Drug | CBD + THC, Cannabidiol (CBD) |
| Tetrahydrocannabinol (THC)Also: Marinol®, dronabinol capsulesDronabinol dose will be 2.5 mg twice daily during the first seven days of active treatment (half of full anticipated dose), followed by 5 mg twice daily for the remainder of the treatment interval (full dose). If the full dose (5 mg twice daily) is not tolerated by participants, they will have the option of going down to the original half-dose (2.5 mg twice daily). Participants who go back to the half-dose of Dronabinol (2.5 mg twice daily) also have the option to request once-per-day dosing with study drug taken at preferred time of day. Participants who request once-per-day dosing will not exceed a total daily dose 5 mg Dronabinol per day. Participants who are tolerating the full-dose of medication (Dronabinol 5 mg BID) will not be allowed to combine these doses into one daily dose. | Drug | CBD + THC, Tetrahydrocannabinol (THC) |
| Placebo CBDPlacebo solution will be taken twice per day, using the same dosing regimen as described for Epidiolex®. | Drug | Placebo CBD + Placebo THC, Tetrahydrocannabinol (THC) |
| Placebo THCPlacebo capsules will be taken twice per day in the same schedule and manner as active dronabinol. | Drug | Cannabidiol (CBD), Placebo CBD + Placebo THC |
Primary outcome
Mean change in sleep bout length
Time frame: Baseline, 12 weeks
Measured with in-laboratory polysomnography, reported as average length of continuous bouts of sleep, for each sleep stage and total sleep (in minutes).
Change in Walsh Spectral Entropy
Time frame: Baseline, 12 weeks
Measured with in-laboratory polysomnography, computed from EEG sleep stage data to quantify hypnogram regularity (dimensionless, values range from 0-1)
Change in Transition Entropy
Time frame: Baseline, 12 weeks
Measured with in-laboratory polysomnography. Entropy measure computed from sleep stage transition matrix that quantifies hypnogram regularity (dimensionless, values range from 0-1)
Change of center of activity
Time frame: Baseline, 12 weeks
Measured with in-laboratory polysomnography. Weighted mean temporal location over the night of all 30 second epochs scored as N3 and Rapid eye movement (REM) sleep
Change in sleep rhythmicity
Time frame: Baseline, 12 weeks
Measured by actigraphy. Probability of being in the same sleep/wake state 24h apart
Change in sleep regularity
Time frame: Baseline, 12 weeks
Measured by actigraphy in hours.
Change in sleep continuity and duration
Time frame: Baseline, 12 weeks
Measured by actigraphy in minutes to obtain time in wakefulness after sleep onset (WASO) and total sleep time.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Jul 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Tiffany Braley principal investigator
University of Michigan
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Cannabidiol (CBD) and Tetrahydrocannabinol (THC) in people with Multiple Sclerosis and Sleep, run by Tiffany J. Braley, MD, MS at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 29 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 17 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact David Johnson (734-615-9650, johnsodj@umich.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Mean change in sleep bout length (time frame: Baseline, 12 weeks). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Jul 2026.