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AnxietyPhase 2NCT04286594

A Clinical Trial of a Hemp-Derived Cannabidiol Product for Anxiety

A Phase 2 study testing CBD in people with Anxiety, run by Mclean Hospital at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This open-label to double-blind study evaluates the impact of cannabidiol (CBD) on anxiety in adults. Participants will use a custom-formulated sublingual (under-the-tongue) solution of whole plant, hemp-derived CBD twice daily for six weeks in addition to their normal treatment regimen. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Anxiety
What is being tested?
CBD
Could I receive a placebo?
No, everyone receives an active treatment
How many people
15 participants
Where
1 siteUnited States
Study dates
1 Feb 2021to 24 Aug 2023
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subject has provided informed consent
  • Subject is 18 or older
  • Subject is a native English speaker or acquired English prior to age 5
  • Subject endorses moderate or severe anxiety at the screening visit

Who cannot join

  • Non-native English speakers
  • Estimated IQ < 75
  • Current substance abuse/dependence, psychotic disorder, bipolar disorder, or an eating disorder
  • A history of head injury or loss of consciousness greater than 5 minutes
  • Currently uses marijuana or cannabinoid-based products more frequently than 1x/month
  • Female subjects will be excluded if they have a positive urine pregnancy test, or if they are currently breastfeeding
Show all 10Show fewer
  • Presence of a serious medical illness, including liver or kidney disease, or neurological disorder
  • Allergy to coconut oil
  • Current use of valproate
  • Additional exclusions related to MR imaging, including claustrophobia, metal implanted within the body, etc.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • McLean Hospital

    Belmont, Massachusetts, 02478

Other trials in United States

About this study

This open-label to double-blind study evaluates the impact of cannabidiol (CBD) on anxiety in adults. Participants will use a custom-formulated sublingual (under-the-tongue) solution of whole plant, hemp-derived CBD twice daily for six weeks in addition to their normal treatment regimen. Participants' clinical state will be assessed weekly during the treatment period. Quality of life, sleep, general health, and cognitive function will also be assessed.

Read the detailed description

This investigation will be the first of its kind to conduct a clinical trial of an industrial hemp-derived product in individuals with anxiety. Despite the recent interest in medical cannabis and cannabinoid-based products, the availability of hemp-derived products in all 50 states, and anecdotal evidence suggesting that hemp-derived products may have a profound anxiolytic effect, no studies have conducted a clinical trial of a hemp-derived product in individuals who suffer from anxiety.

This investigation is composed of two phases. Phase 1 is comprised of a six-week open-label clinical trial of the custom formulated hemp-derived high-CBD solution in individuals with anxiety (n=12). Participants will be pre-screened by phone in order to evaluate their eligibility for the study. If approved, participants will come to the hospital for a baseline/screening visit, and will complete a structured clinical interview, clinical and quality of life questionnaires, and cognitive assessments. Enrolled participants will be given study product to use for the duration of the study; participants will be instructed to self-administer the solution under the tongue twice daily for six weeks. Throughout the treatment period, participants will complete short in-person or phone visits on a weekly basis, where they will complete questionnaires about their mood and quality of life. Participants will also return to the hospital for a final visit after six weeks of treatment to complete additional questionnaires and cognitive assessments.

Phase 2 of the study is a double-blind clinical trial of this solution in patients with anxiety (n=40). This double-blind trial will begin after the open-label trial has been completed. In the same manner as the open-label trial, participants will be pre-screened by phone, and approved participants will come to the hospital for a baseline/screening visit to complete a structured clinical interview, questionnaires, and cognitive assessments. Eligible participants will also have the option to complete an hour-long MRI scan at the baseline and final visits. Enrolled participants will receive either CBD solution or placebo solution to self-administer throughout the six week treatment period, as described above. Participants will complete in-person visits and phone check-ins during the treatment period to complete questionnaires about their mood and quality of life. Participants in this phase of the study will also return for a final visit after six weeks of treatment to complete additional questionnaires, cognitive assessments, and an optional MRI scan. Note: Phase 2 was planned but study termination occurred prior to commencement.

Conditions
Anxiety
Being tested
CBD
Medical subject headings
Anxiety Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CBDDrug

    Participants will receive CBD solution during the open-label phase of the trial.

Study groups in NCT04286594
Study groupRoleWhat they receive
CBDExperimental0.5ml of sublingual CBD solution (30mg/ml) administered twice daily for six weeks.
Receives: Drug: CBD

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Self-Reported Anxiety as Assessed by the Beck Anxiety Inventory (BAI)

    The BAI is a 21-item self-report measure used to rate subjective, somatic, and panic-related symptoms of anxiety on a scale of 0 to 3, and will be given to participants on a weekly basis. The possible range of scores is 0-63.

    Measured: 6 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Feb 2020
  2. Study start1 Feb 2021
  3. Primary completion24 Aug 2023
  4. Study completion24 Aug 2023

Why it stopped: Terminated by sponsor

Resources

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
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04286594
Sponsor's protocol ID
2019P003885
Status last verified
Aug 2024
First submitted
25 Feb 2020
Last updated
27 Aug 2024
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing CBD in people with Anxiety, run by Mclean Hospital 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 10 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: stopped early, as of the sponsor's last update on 27 Aug 2024. 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. 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?

Yes. Results are posted in the registry (first posted 27 Aug 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Self-Reported Anxiety as Assessed by the Beck Anxiety Inventory (BAI) (time frame: 6 weeks). 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 27 Aug 2024.

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