- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04398719
CBD-Microglia PET Study
July 13, 2023 updated by: Rajiv Radhakrishnan, MD, Yale University
Effect of Cannabidiol on Microglial Activation and Central Pain-Sensitization
This study aims to examine the effect of cannabidiol (CBD) pre-treatment on brain microglial activation in healthy human subjects.
Secondarily, this study aims to examine the effect of cannabidiol (CBD) pre-treatment on central pain-sensitization in healthy human subjects.
Study Overview
Status
Recruiting
Intervention / Treatment
Detailed Description
This study aims to examine the effect of cannabidiol (CBD), pre-treatment, as Epidiolex, on brain microglial activation in healthy human subjects using [11C]PBR28 PET imaging.
Secondarily, this study aims to examine the effect of cannabidiol (CBD) pre-treatment on central pain-sensitization in healthy human subjects.
Lastly, this research study will also examine the relationship between brain microglial activation and central pain sensitization with CBD pre-treatment.
Study Type
Interventional
Enrollment (Estimated)
15
Phase
- Early Phase 1
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Rajiv Radhakrishnan, MD
- Phone Number: 203-974-7489
- Email: rajiv.radhakrishnan@yale.edu
Study Contact Backup
- Name: Mohini Ranganathan, MD
- Phone Number: 2546 (203)932-5711
- Email: mohini.ranganathan@yale.edu
Study Locations
-
-
Connecticut
-
New Haven, Connecticut, United States, 06519
- Recruiting
- Connecticut Mental Health Center
-
Principal Investigator:
- Mohini Ranganathan, MD
-
Principal Investigator:
- Rajiv Radhakrishnan, MD
-
Contact:
- Phone Number: 203-974-7775
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 55 years (Adult)
Accepts Healthy Volunteers
Yes
Description
Inclusion Criteria:
- Men and women aged 18- 55 years
- No significant medical or neurological illness
- No implanted metal devices that may pose a risk during MRI scanning
- Within the annual permissible radiation exposure
- Able to provide written informed consent.
Exclusion Criteria:
- Current use of any medications
- Presence of metal in the body
- Pregnancy or lactation
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: Placebo
|
The radiotracer, [11C]PBR28, will be administered at the beginning of each PET scan
Other Names:
Subjects will receive intravenous lipopolysaccharide.
Other Names:
A small dose of capsaicin will be administered by intradermal injection.
|
Active Comparator: CBD
|
The radiotracer, [11C]PBR28, will be administered at the beginning of each PET scan
Other Names:
Subjects will receive intravenous lipopolysaccharide.
Other Names:
A small dose of capsaicin will be administered by intradermal injection.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Microglial activation using [11C]PBR28 PET imaging
Time Frame: 10 Days
|
Difference in microglial activation ([11C]PBR28 VT levels) between the 2 groups (e.g., CBD vs. placebo)
|
10 Days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Capsaicin-induced hyperalgesia
Time Frame: 10 Days
|
Difference in capsaicin-induced hyperalgesia between the 2 groups (e.g., CBD vs. placebo)
|
10 Days
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Rajiv Radhakrishnan, MD, Yale University
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
May 7, 2021
Primary Completion (Estimated)
August 31, 2024
Study Completion (Estimated)
March 1, 2025
Study Registration Dates
First Submitted
May 19, 2020
First Submitted That Met QC Criteria
May 19, 2020
First Posted (Actual)
May 21, 2020
Study Record Updates
Last Update Posted (Actual)
July 14, 2023
Last Update Submitted That Met QC Criteria
July 13, 2023
Last Verified
July 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2000026320
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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