NCT04878627

Brief Summary

No studies of cannabidiol (CBD) have focused on Anorexia Nervosa (AN). Dose, side effects, tolerability, acceptability of pure CBD in AN must be established. The current study is an important first step in the investigation of CBD for AN. Cannabis products have been recently legalized in many states, and CBD in particular has been shown to reduce anxiety. Therefore, CBD may represent a promising new treatment for AN. The endocannabinoid system is involved in the regulation of functions relevant to eating disorders. Furthermore, data suggest that eating disorders are associated with alterations of the endocannabinoid system. Prior attempts to target the endocannabinoid system in AN have focused on CB1 receptor agonists that can increase anxiety. Moreover, CBD may be particularly beneficial in decreasing anxiety in AN via its action at serotonin receptors. Lastly, the impact of CBD on eating behavior and weight in AN must be determined. The current study seeks to explore these hypotheses using the aims in the following section.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P50-P75 for early_phase_1

Timeline
1mo left

Started Jan 2022

Longer than P75 for early_phase_1

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress98%
Jan 2022Jun 2026

First Submitted

Initial submission to the registry

April 26, 2021

Completed
11 days until next milestone

First Posted

Study publicly available on registry

May 7, 2021

Completed
9 months until next milestone

Study Start

First participant enrolled

January 20, 2022

Completed
4.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2026

Last Updated

September 2, 2025

Status Verified

August 1, 2025

Enrollment Period

4.4 years

First QC Date

April 26, 2021

Last Update Submit

August 28, 2025

Conditions

Outcome Measures

Primary Outcomes (7)

  • Committee of Clinical Investigations UKU-Side Effect Scale Week 1

    The Committee of Clinical Investigations (UKU) scale is used to rate psychiatric (e.g., depression, failing memory, concentration difficulty), neurological (e.g., rigidity, tremor, epileptic seizure), and autonomic (e.g., nausea, diarrhea, tachycardia) side effects, plus others. Higher scores indicate more side effects.

    After completion of Week 1 of treatment

  • Committee of Clinical Investigations UKU-Side Effect Scale Week 2

    The Committee of Clinical Investigations (UKU) scale is used to rate psychiatric (e.g., depression, failing memory, concentration difficulty), neurological (e.g., rigidity, tremor, epileptic seizure), and autonomic (e.g., nausea, diarrhea, tachycardia) side effects, plus others. Higher scores indicate more side effects.

    After completion of Week 2 of treatment

  • Committee of Clinical Investigations UKU-Side Effect Scale Week 3

    The Committee of Clinical Investigations (UKU) scale is used to rate psychiatric (e.g., depression, failing memory, concentration difficulty), neurological (e.g., rigidity, tremor, epileptic seizure), and autonomic (e.g., nausea, diarrhea, tachycardia) side effects, plus others. Higher scores indicate more side effects.

    After completion of Week 3 of treatment

  • Blood tests for cannabinol (CBD) metabolites Week 1

    Blood levels for CBD, 6-OH-CBD, 7COOH-CBD, THC. The results will be compared to standard laboratory values.

    After Completion of Week 1 of treatment

  • Blood tests for cannabinol (CBD) metabolites Week 2

    Blood levels for CBD, 6-OH-CBD, 7COOH-CBD, THC. The results will be compared to standard laboratory values.

    After completion of Week 2 of treatment

  • Blood tests for cannabinol (CBD) metabolites Week 3

    Blood levels for CBD, 6-OH-CBD, 7COOH-CBD, THC. The results will be compared to standard laboratory values.

    After completion of Week 3 of treatment

  • Change from baseline scores of Eating Disorder Examination Questionnaire (EDE-Q) over the course of treatment

    Assesses the change from baseline in BMI, Eating Restraint, Eating Concern, Shape Concern, Weight Concern over the course of treatment. Each of those subscales is rated between 0 and 5. Subscales are calculated based on the average scores for the respective subscale. Higher scores indicate poorer outcome.

    Weekly for the duration of the project (three weeks)

Study Arms (2)

Cannabidiol (CBD)

EXPERIMENTAL

Days 1 to 7: Patients will receive CBD 2.5 mg/kg in divided doses BID for 7 days. Days 8 to 14: Patients will receive an increase dose of 7.5 mg/kg of CBD in divided doses. Days 15 to 21: Patients will receive an increased dose of 12.5 mg/kg CBD, in divided doses. If patients experience dose limiting side-effects, they ill be maintained on the lowest tolerated dose.

Drug: Cannabidiol

Placebo

PLACEBO COMPARATOR

Days 1 to 7: Patients will receive placebo in divided doses BID for 7 days. Days 8 to 14: Patients will continue to receive placebo in divided doses. Days 15 to 21: Patients will receive continue to receive placebo in divided doses.

Drug: Placebo

Interventions

patients receive cannabidiol at various doses for 3 weeks

Also known as: Epidiolex
Cannabidiol (CBD)

patients receive placebo for 3 weeks

Placebo

Eligibility Criteria

Age18 Years - 40 Years
Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsFemale individuals will be enrolled. Gender eligibility is based on biological sex of participants.
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Must currently meet DSM-5 criteria for AN-R and AN Spectrum Disorders (i.e., Atypical AN) based on the Structured Clinical Interview for the DSM-5 (SCID-5-RV)
  • Have a duration of illness ≥ 6 months
  • Be medically stable as assessed by a comprehensive medical and behavioral evaluation conducted by a study physician

You may not qualify if:

  • Psychotic illness/other mental illness requiring inpatient hospitalization
  • Current dependence on drugs or alcohol
  • Physical conditions (e.g., diabetes mellitus, pregnancy) known to influence eating or weight or liver disease which may affect pharmacokinetics of the study drug
  • Use of other psychoactive medications
  • Significant changes in medication in past month
  • Expression of acute suicidality
  • Previous hypersensitivity reaction to Epidiolex or any of its constituents

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of California San Diego

San Diego, California, 92121, United States

Location

Related Publications (5)

  • Kaye WH, Bulik CM, Thornton L, Barbarich N, Masters K. Comorbidity of anxiety disorders with anorexia and bulimia nervosa. Am J Psychiatry. 2004 Dec;161(12):2215-21. doi: 10.1176/appi.ajp.161.12.2215.

    PMID: 15569892BACKGROUND
  • Ando T, Tamura N, Mera T, Morita C, Takei M, Nakamoto C, Koide M, Hotta M, Naruo T, Kawai K, Nakahara T, Yamaguchi C, Nagata T, Ookuma K, Okamoto Y, Yamanaka T, Kiriike N, Ichimaru Y, Ishikawa T, Komaki G; Japanese Genetic Research Group For Eating Disorders. Association of the c.385C>A (p.Pro129Thr) polymorphism of the fatty acid amide hydrolase gene with anorexia nervosa in the Japanese population. Mol Genet Genomic Med. 2014 Jul;2(4):313-8. doi: 10.1002/mgg3.69. Epub 2014 Feb 24.

    PMID: 25077173BACKGROUND
  • Tambaro S, Bortolato M. Cannabinoid-related agents in the treatment of anxiety disorders: current knowledge and future perspectives. Recent Pat CNS Drug Discov. 2012 Apr 1;7(1):25-40. doi: 10.2174/157488912798842269.

    PMID: 22280339BACKGROUND
  • Rong C, Lee Y, Carmona NE, Cha DS, Ragguett RM, Rosenblat JD, Mansur RB, Ho RC, McIntyre RS. Cannabidiol in medical marijuana: Research vistas and potential opportunities. Pharmacol Res. 2017 Jul;121:213-218. doi: 10.1016/j.phrs.2017.05.005. Epub 2017 May 10.

    PMID: 28501518BACKGROUND
  • Bisogno T, Hanus L, De Petrocellis L, Tchilibon S, Ponde DE, Brandi I, Moriello AS, Davis JB, Mechoulam R, Di Marzo V. Molecular targets for cannabidiol and its synthetic analogues: effect on vanilloid VR1 receptors and on the cellular uptake and enzymatic hydrolysis of anandamide. Br J Pharmacol. 2001 Oct;134(4):845-52. doi: 10.1038/sj.bjp.0704327.

    PMID: 11606325BACKGROUND

MeSH Terms

Conditions

Anorexia Nervosa

Interventions

Cannabidiol

Condition Hierarchy (Ancestors)

Feeding and Eating DisordersMental Disorders

Intervention Hierarchy (Ancestors)

CannabinoidsTerpenesHydrocarbonsOrganic Chemicals

Study Officials

  • Guido K Frank, MD

    University of California, San Diego

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
The PI and research coordinator administering the medication will be blinded to the randomization schedule. The research subject will be blinded to what medication she receives.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Placebo-controlled, randomized, double-blind study
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

April 26, 2021

First Posted

May 7, 2021

Study Start

January 20, 2022

Primary Completion (Estimated)

June 1, 2026

Study Completion (Estimated)

June 1, 2026

Last Updated

September 2, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

Locations