Using CBD to treat anxiety and sleep problems

A Pilot Double-Blind Placebo-Controlled, Randomized, Safety, Efficacy, and Acceptability Trial of a Hemp-Derived Cannabidiol Extract for the Treatment of Anxiety

Phase 2 Interventional University of Florida · NCT06672666

This study is testing whether hemp-derived CBD can help people with anxiety and sleep problems feel better over a month.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment30 (estimated)
Ages18 Years to 55 Years
SexAll
SponsorUniversity of Florida Academic / other
Locations1 site (Gainesville, Florida)
Trial IDNCT06672666 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the safety and preliminary efficacy of hemp-derived CBD for individuals experiencing anxiety and sleep disturbances. Over a 4-week period, participants will receive either CBD or a placebo in a randomized, double-blind manner, with doses ranging from 50 to 150 mg/day. The study aims to assess how changes in sleep may influence anxiety symptoms, providing insights into the therapeutic potential of CBD for anxiety disorders. Participants will undergo a two-week titration followed by a two-week maintenance phase to evaluate the treatment's effects.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 55 with moderate to severe anxiety as indicated by a Hamilton Anxiety Rating Scale score above 14.

Not a fit: Patients who are pregnant, breastfeeding, or have a history of suicidal behavior may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could offer a new, non-addictive treatment option for patients suffering from anxiety and sleep issues.

How similar studies have performed: Previous studies have shown promising results for CBD in treating anxiety, but this specific approach is still being explored.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Any biological sex and ages 18 to 55 years old
* Willing and able to give informed consent for participation in the study
* Willing and able to comply with all study requirements, including willingness to donate blood during the study
* Meet diagnosis for moderate to severe anxiety based on a score of more than 14 in the Hamilton Anxiety Rating Scale (HAM-A)
* Subjects of childbearing potential should use two forms of highly effective contraception methods combined (e.g., barrier methods combined with Long-Acting Reversible Contraceptives) to be eligible for study participation.
* Normal clinical history and laboratory test

Exclusion Criteria:

* Pregnancy or breastfeeding
* Any history of suicidal behavior or any suicidal ideation in the past six months or at screening
* Any change in current SSRI, SNRI, or other non-benzo anxiolytic medication within six weeks of baseline visit.
* Active daily or almost daily (3+ days/week) use of cannabinoids or THC in the past month or any other illicit drug within the past 6 months
* Inability to refrain from using alcohol (4 or more drinks in one occasion or 3+ days/week), antiepileptics, antipsychotics, oral antifungals, verapamil, nitrofurantoin, or any other medication in drug classes, such as antibiotics, nonsteroidal anti-inflammatory drugs, herbal and dietary supplements, cardiovascular drugs, central nervous system agents, or antineoplastic drugs, inducing transaminase elevation based on the LiverTox database. 17,18
* Inability to adjust the doses of prescription medications displaying a narrow therapeutic index that are potentially impacted by concomitant cannabinoid use18,19.
* Inability to refrain from using acetaminophen, or topic antifungals on a regular basis (more than two times per week) over the course of the trial.
* Active use of benzodiazepines, opioids, and antihistamines or any other medication inducing lethargy and sedation, except for antidepressants, for which detailed information will be collected.
* History of liver disease or current liver disease or clinically significant elevation in serum liver chemistries at baseline (i.e., Serum aspartate aminotransferase (AST) or alanine aminotransferase (ALT) \>3 times upper limit of normal (ULN) or alkaline phosphatase (ALP) \>2 times ULN (or the baseline value if baseline is elevated); Total serum bilirubin \>2.5 mg/dL with elevated AST, ALT or ALP; or International normalized ratio (INR) \>1.5 with elevated AST, ALT or ALP).20
* Current substance use disorder
* Unstable medical or neurological condition
* Positive drug screen for substances of abuse
* Lifetime history of psychotic disorder, bipolar disorder, PTSD or OCD
* Psychotherapy newly instituted during the 6 weeks leading up to enrollment in the study. Subjects established in psychotherapy without change during the course of the study may participate.
* Severe depression symptoms in the past six months.
* Known or suspected hypersensitivity to cannabidiol or any other components in the extract.

Where this trial is running

Gainesville, Florida

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions AnxietyGeneralized Anxiety DisorderSleep ProblemsCBDCannabidiolHemp-Derived Cannabidiol ExtractGADsleep
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.