THC Versus THC/CBD Versus Placebo to Improve Sleep Quality for Patients With Solid Organ Cancer and Insomnia
Key facts
- Who runs it
- Mayo Clinic
- Where
- Rochester, United StatesSee the site
- Trial code
- Status
- Not yet recruiting
- Phase
- Phase 2
- People taking part
- 69 people, planned
- Started
- 1 Oct 2026
- Expected to end
- 1 Sept 2027
- Type of study
- Interventional, 3 groupsOne group gets a placebo (a dummy treatment), for comparison.
- Treatments tested
- Biospecimen Collection
- Placebo Administration
- Single Agent Therapy
- Record updated
- 2 September 2026
Who can take part
- Age
- 25 years and older
- Sex
- Women and men
- Healthy volunteers
- Cannot take part
The registry criteria, word for word
Show all 33 criteriaShow less
Who can take part
- Age ≥ 25 years
- History of solid organ (not hematologic) cancer diagnosis (except patients with central nervous system [CNS] cancer who have history of seizures or untreated brain metastasis). Patients may be either in remission or have active disease. Patients must be considered medically fit by their treating physician to participate in the study
- Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1 or 2
- History of insomnia for which the patient would like an intervention
- Insomnia Severity Index Score ≥ 15. Patients can answer questions orally rather than completing worksheet, for screening only
- Willing to abstain from alcohol, anticholinergics, and benzodiazepines while on study
- If on opioids, must be a stable dose ≥ 30 days prior to randomization (no changes to prescriptions, this can include as needed [PRN] dosing) with no plans to increase during the study period
- White blood cell count (WBC) ≥ 3,000/mm\^3 (obtained ≤ 30 days prior to randomization)
- Hemoglobin ≥ 8 g/dL (obtained ≤ 30 days prior to randomization)
- Platelet count ≥ 50,000/mm\^3 (obtained ≤ 30 days prior to randomization)
- Alanine aminotransferase (ALT) or aspartate transaminase (AST) ≤ 3 x upper limit of normal (ULN) (obtained ≤ 30 days prior to randomization)
- Glomerular filtration rate (GFR) > 20 (obtained ≤ 30 days prior to randomization)
- Total bilirubin ≤ 1.5 x ULN (obtained ≤ 30 days prior to randomization)
- Negative pregnancy test done ≤ 7 days prior to registration, for persons of childbearing potential only
- Provide informed consent
- Ability to complete questionnaires and diary by themselves or with assistance
- Willingness to wear a home EEG monitor and have a blue-tooth device for recording (Smart phone, iPad)
- Normal urine toxicology screen ≤ 7 days prior to randomization (abstinence from cannabinoids and other common drugs of abuse: cocaine, benzodiazepines, and methamphetamines)
Who cannot take part
- Any of the following because this study involves an investigational agent whose genotoxic, mutagenic, and teratogenic effects on the developing fetus and newborn are unknown:; Pregnant persons; Nursing persons; Persons of childbearing potential or are able to father a child who are unwilling to employ adequate contraception (e.g., hormonal methods, barrier methods, intrauterine device, abstinence) during the study and for 14 days after their last dose
- Currently using any other pharmacologic agents, over the counter medications or supplements to specifically treat insomnia for ≤ 7 days prior to randomization
- Cannabis use ≤ 30 days prior to randomization
- Any concomitant medications that, in the judgment of the treating physician or pharmacist, could result in an adverse drug effect (increase in substrate level); pharmacy e-consult will be conducted for each patient to determine CYP interactions
- Known primary sleep disorder (restless leg syndrome [RLS], uncontrolled apnea, narcolepsy)
- Active cardiac disease (symptomatic congestive heart failure [CHF], arrhythmias, untreated coronary artery disease [CAD])
- History of Human Papilloma Virus positive (HPV+) head and neck cancer
- Any known hypersensitivity to cannabis
- Patients with CNS cancer or brain metastasis who have had or have seizures
- History of, or current substance use disorder
- Patients with a history of psychotic disorders (including but not limited to schizophrenia, major depression with psychotic features, brief psychotic disorder). Patients with depression, manic/depression, or obsessive compulsive disorder (OCD) will need clearance from their mental health provider that these medical conditions are controlled and that the patient is appropriate for the study
- Patients with electrocardiography (ECG) test with corrected QT interval (QTc) ≥ 450 msec for men and ≥ 470 msec for women
- On warfarin, topiramate, clobazam, or other high-risk CYP3A4 substrates (amiodarone, macrolides, verapamil, fluoxetine, clotrimazole, ketoconazole) per pharmacy review
- Current or past suicidal ideation or suicidal behavior within the last year, as assessed with the Columbia-Suicide Severity Rating Scale (C-SSRS)
- Patients with history off falls in the past 6 months, or considered at risk for falling
Where in United States
- Mayo Clinic in RochesterRochester, United StatesContact: Clinical Trials Referral OfficeNo longer taking part
About the trial
What the trial wants to find out
This phase II trial compares THC versus (vs.) THC with CBD vs. placebo to improve sleep quality for patients with solid organ cancer and insomnia. Many patients who are diagnosed with cancer struggle with sleep disorders after receiving a diagnosis. Insomnia is the most reported sleep disturbance amongst cancer patients, often stemming from physical changes from tumor growth and surgery, side effects from supportive care and chemotherapy, and stress associated with the diagnosis. THC with or without CBD may improve insomnia symptoms and sleep quality.
The 3 groups in the trial
- Arm I (THC tincture)Treatment being tested
Patients receive THC tincture sublingually 60 minutes prior to bedtime QD on days 1-28. Patients start on day 1 at the lowest dose, for a minimum of 2 nights, and may increase the dose every 2 nights until they reach the maximum dose or they have acceptable sleep and remain at that dose. On days 29-34, patients continue to receive THC tincture sublingually 60 minutes prior to bedtime QD but titrate down to the lowest dose by day 34. Treatment is given in the absence of disease progression or unacceptable toxicity. Patients undergo blood and urine sample collection throughout the study.
Treatment: Biospecimen Collection and Single Agent Therapy
- Arm II (THC/CBD tincture)Treatment being tested
Patients receive THC/CBD tincture sublingually 60 minutes prior to bedtime QD on days 1-28. Patients start on day 1 at the lowest dose, for a minimum of 2 nights, and may increase the dose every 2 nights until they reach the maximum dose or they have acceptable sleep and remain at that dose. On days 29-34, patients continue to receive THC/CBD tincture sublingually 60 minutes prior to bedtime QD but titrate down to the lowest dose by day 34. Treatment is given in the absence of disease progression or unacceptable toxicity. Patients undergo blood and urine sample collection throughout the study.
Treatment: Biospecimen Collection and Single Agent Therapy
- Arm III (placebo tincture)Placebo, for comparison
Patients receive placebo tincture sublingually 60 minutes prior to bedtime QD on days 1-28. Patients start on day 1 at the lowest dose, for a minimum of 2 nights, and may increase the dose every 2 nights until they reach the maximum dose or they have acceptable sleep and remain at that dose. On days 29-34, patients continue to receive placebo tincture sublingually 60 minutes prior to bedtime QD but titrate down to the lowest dose by day 34. Treatment is given in the absence of disease progression or unacceptable toxicity. Patients undergo blood and urine sample collection throughout the study.
Treatment: Biospecimen Collection and Placebo Administration
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorData and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- MC251001 - Phase II Randomized Double-Blinded Pilot Study of THC vs. THC/CBD (1:1) vs. Placebo for Insomnia in Patients With Cancer
- Record updated
- 2 September 2026