NCT05023759

Brief Summary

Generalized anxiety disorder affects about 6.8 million adults in the United States, therefore its treatment is of major public health interest. Cannabidiol (CBD) has shown promise as an effective treatment for anxiety-related symptoms while lacking the severity of adverse effects seen with other medications. Given the wide availability of products containing CBD on the market today, from tinctures to coffee additives, and the undetermined potential for drug-to-drug interactions, medical supervision of CBD intake and formulation-specific clinical research is necessary. Therefore this study aimed to observe the effects of a specific hemp-derived full spectrum CBD formula on anxiety-related symptoms in a group of volunteers. The investigators will examine the self-reported anxiety symptoms in relation to use of a specific CBD formulation (25mg solvent-free full spectrum CBD capsules) in a cohort of adults diagnosed with generalized anxiety disorder. This open-label, cohort study will be conducted at six clinic sites in the United States (including Puerto Rico) from June 2020 through October 2020. The six physicians recruited to participate in the study were each actively prescribing CBD in their practices and were actively caring for patients with anxiety symptoms. Anxiety levels will be measured in enrolled participants diagnosed with generalized anxiety disorder each week for a period of eight weeks using the Generalized Anxiety Disorder 7-Item Scale (GAD7). Participants will also be instructed to take a daily 25mg capsule of CBD. The investigators hypothesize that this formula, when carefully developed and administered by a healthcare professional, will significantly reduce anxiety symptoms.

Trial Health

90
On Track

Trial Health Score

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

Enrollment
30

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Jun 2020

Shorter than P25 for all trials

Geographic Reach
2 countries

6 active sites

Status
completed

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 Start

First participant enrolled

June 1, 2020

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2020

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

August 17, 2021

Completed
10 days until next milestone

First Posted

Study publicly available on registry

August 27, 2021

Completed
Last Updated

August 27, 2021

Status Verified

August 1, 2021

Enrollment Period

5 months

First QC Date

August 17, 2021

Last Update Submit

August 23, 2021

Conditions

Keywords

cannabidiolendocannabinoid systemCBDcannabisanxietygeneralized anxiety disordercannabinoidsendocannabinoidsGAD7

Outcome Measures

Primary Outcomes (1)

  • Change from Baseline Generalized Anxiety Disorder 7-Item Scale (GAD7) Score at 8 weeks

    The Generalized Anxiety Disorder 7-Item (GAD7) score is calculated by assigning scores of 0, 1, 2, and 3, to the response categories of 'not at all', 'several days', 'more than half the days', and 'nearly every day', respectively, and adding together the scores for the seven questions. The minimum score is 0 and the maximum score is 21, with scores of 5, 10, and 15 are taken as the cut-off points for mild, moderate and severe anxiety, respectively. When used as a screening tool, further evaluation is recommended when the score is 10 or greater.

    Measured at 8 weeks after baseline

Secondary Outcomes (2)

  • Participant Clinical Interview with Medical Provider

    Measured at 4 weeks after enrollment

  • Participant Clinical Interview with Medical Provider

    Measured at 8 weeks after enrollment

Other Outcomes (7)

  • Change from Baseline Generalized Anxiety Disorder 7-Item Scale (GAD7) Score at 1 week

    Measured at 1 weeks after baseline

  • Change from Baseline Generalized Anxiety Disorder 7-Item Scale (GAD7) Score at 2 week

    Measured at 2 weeks after baseline

  • Change from Baseline Generalized Anxiety Disorder 7-Item Scale (GAD7) Score at 3 weeks

    Measured at 3 weeks after baseline

  • +4 more other outcomes

Interventions

Formula30A Full Spectrum Hemp-Derived Cannabidiol (CBD) 25mg Capsules taken once daily for 8 weeks.

Eligibility Criteria

Age21 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Study conducted at six clinic sites in the United States, primarily Texas and Puerto Rico, from June 2020 through October 2020. Patients with a varying range of anxiety symptoms, who are current patients of the participating clinics and are who diagnosed with generalized anxiety disorder, will be eligible to enroll in the study.

You may qualify if:

  • Age between 21 and 85 years old.
  • Research participants of both sexes.
  • Good health conditions and without conditions that characterize them as belonging to the risk groups associated with adverse reactions to the product ingredients.
  • Research participants with the potential to become pregnant may be included in the study as long as they are sexually abstinent or using a contraceptive method considered effective.
  • Signature of the Free and Informed Consent Form.

You may not qualify if:

  • Initiation of or changes in use of medication or therapies in the past 2 weeks of start of study.
  • Pregnancy or breastfeeding.
  • History of hepatic compromise with transaminases of 2 times the upper limit of normal or cirrhosis.
  • Diagnosis of Bi-Polar disorder, Schizophrenia or Suicidal Ideation.
  • Current use of recreational marijuana, medical marijuana, or other CBD formulations.
  • History of any substance or alcohol abuse.
  • Current use of High Dose or Extended-Release Narcotics.
  • Patients diagnosed with sleep apnea.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (6)

NP Care Clinic

Denton, Texas, 76201, United States

Location

Dr. Michael Jelinek, MD

Edinburg, Texas, 78539, United States

Location

Modern Medicine

Forney, Texas, 75126, United States

Location

Destination Health

Southlake, Texas, 76092, United States

Location

Melville Medicine

Southlake, Texas, 76092, United States

Location

Dr. Jenaro Velez, MD

Ceiba, 00735, Puerto Rico

Location

Related Publications (5)

  • Skelley JW, Deas CM, Curren Z, Ennis J. Use of cannabidiol in anxiety and anxiety-related disorders. J Am Pharm Assoc (2003). 2020 Jan-Feb;60(1):253-261. doi: 10.1016/j.japh.2019.11.008. Epub 2019 Dec 19.

    PMID: 31866386BACKGROUND
  • Blessing EM, Steenkamp MM, Manzanares J, Marmar CR. Cannabidiol as a Potential Treatment for Anxiety Disorders. Neurotherapeutics. 2015 Oct;12(4):825-36. doi: 10.1007/s13311-015-0387-1.

    PMID: 26341731BACKGROUND
  • Crippa JA, Derenusson GN, Ferrari TB, Wichert-Ana L, Duran FL, Martin-Santos R, Simoes MV, Bhattacharyya S, Fusar-Poli P, Atakan Z, Santos Filho A, Freitas-Ferrari MC, McGuire PK, Zuardi AW, Busatto GF, Hallak JE. Neural basis of anxiolytic effects of cannabidiol (CBD) in generalized social anxiety disorder: a preliminary report. J Psychopharmacol. 2011 Jan;25(1):121-30. doi: 10.1177/0269881110379283. Epub 2010 Sep 9.

    PMID: 20829306BACKGROUND
  • Iffland K, Grotenhermen F. An Update on Safety and Side Effects of Cannabidiol: A Review of Clinical Data and Relevant Animal Studies. Cannabis Cannabinoid Res. 2017 Jun 1;2(1):139-154. doi: 10.1089/can.2016.0034. eCollection 2017.

    PMID: 28861514BACKGROUND
  • Spitzer RL, Kroenke K, Williams JB, Lowe B. A brief measure for assessing generalized anxiety disorder: the GAD-7. Arch Intern Med. 2006 May 22;166(10):1092-7. doi: 10.1001/archinte.166.10.1092.

    PMID: 16717171BACKGROUND

MeSH Terms

Conditions

Generalized Anxiety DisorderMarijuana AbuseAnxiety Disorders

Condition Hierarchy (Ancestors)

Mental DisordersSubstance-Related DisordersChemically-Induced Disorders

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 17, 2021

First Posted

August 27, 2021

Study Start

June 1, 2020

Primary Completion

October 31, 2020

Study Completion

October 31, 2020

Last Updated

August 27, 2021

Record last verified: 2021-08

Data Sharing

IPD Sharing
Will share

All IPD that underlie results in a publication.

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
Starting 6 months after publication.
Access Criteria
IPD and additional supporting information shared upon request.

Locations