Safety and Effects on Responses to Stress and Pain of Natural Medical Marijuana Products

Pain Clinical Trial

Official title:

Safety of Acute and Repeated Doses of Natural Medical Marijuana Products and Effects on Subjective and Physiological Responses to Stress and Pain

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04226690
• Other study ID #: 2000020896
• Secondary ID: No NIH funding
• Status: Completed
• Phase: Phase 1
• Start date: November 15, 2022
• Est. completion date: December 15, 2023

Study information

• Verified date: January 2024
• Source: Yale University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This proposal aims to systematically examine the safety and pharmacokinetic/pharmacodynamic profile and the physiologic, neuroendocrine and behavioral stress and pain responses to acute single doses and repeated dosing of oral tablet formulation of natural Cannabidiol (CBD) alone and in combination with Tetrahydrocannabinol and matched Placebo (PLA).

Description:

This proposal aims to systematically examine the safety and pharmacokinetic/pharmacodynamic (PK/PD) profile and the physiologic, neuroendocrine and behavioral stress and pain responses to acute single doses and repeated dosing of oral tablet formulation of natural Cannabidiol (CBD) at 40 mg and 100 mg alone and in combination with Tetrahydrocannabinol (THC) at 10, 20 and 30 mg, and matched Placebo (PLA) under the following specific aims:

Aim 1: To assess the safety and PK/PD profile of acute single doses of natural oral tablet of CBD (40 mg, 100 mg), and the CBD/THC combination (40/10, 40/20 and 100/30 mg) and matching placebo (PLA) over six separate sessions one week apart in healthy adult men and women who are current recreational cannabis users (STUDY 1).

Aim 2: To examine the effects of separate CBD, THC, CBD/THC combination vs. PLA on subjective, physiological, neuroendocrine, cognitive and behavioral measures of stress, pain and anxiety at baseline and under acute pain provocation using an adapted Cold Pressor Test (CPT) in STUDY 1.

Aim 3: To examine the safety and tolerability of the two specific doses of CBD/THC, selected on the basis of best PK/PD and tolerability profile from Study 1 vs. PLA on baseline and CPT provoked pain in individuals with chronic pain over a 7-day repeated dosing (STUDY 2).

Study 1:

Eight 21-45-year-old men and women , who are recreational marijuana users but do not meet criteria for moderate-severe cannabis use disorder will be recruited to complete six separate inpatient laboratory sessions one week apart during which they will be assigned to receive an acute dose of either 40 mg CBD or 100 mg CBD alone, a CBD/THC combination of 40/10, 40/20 or 100/30 or PLA, in a random, counter-balanced, double-blind, cross-over design over a 6-week period. Sessions will be completed one -week apart to allow for an adequate washout period between sessions.

Study 2:

Adult men and women ages 21-60 (N=24) with chronic pain (not fully controlled by opioid pain medication), will be recruited and randomly assigned to receive the two most tolerable CBD/THC doses (two active doses of n=8 in each) or PLA (n=8) repeated dosing for 7 days. On day 1 and day 6/7 of the 7-day dosing, subjects will complete laboratory sessions. For 14 days after the 7-day dosing, subjects will complete daily ratings of pain and other patient-related outcomes. Subjects cannot meet criteria for moderate to severe levels of cannabis use disorder or other substance use disorders.

This registration will focus on Study 2.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 24
• Est. completion date: December 15, 2023
• Est. primary completion date: December 15, 2023
• Accepts healthy volunteers: No
• Gender: All
• Age group: 21 Years to 68 Years

Eligibility

Inclusion Criteria:

1. Able to read and write English;

2. Recreational cannabis use with a minimum history recent use of at least one joint of smoked marijuana or marijuana edible or other equivalent form;

3. Current chronic pain, as defined by the International Classification of Diseases (ICD)-10, and stabilized for a minimum of 2 weeks on pain medication, (minimum pain ratings of 4 on a 10-point scale) and agree to not change pain medication during course of the study;

4. Body Mass Index (BMI) in the 18-36 range;

Exclusion Criteria:

1. Any psychotic disorder or current psychiatric symptoms requiring specific attention, including active symptoms of psychosis or suicidal/homicidal ideation.

2. Any Current moderate/severe Substance Use Disorder, including alcohol and cannabis.

3. Women who are nursing or have premenstrual dysphoric disorder;

4. Women who are pregnant as determined by the urine pregnancy test at each assessment period;

5. Inability to give informed consent;

6. Traumatic brain injury or loss of consciousness;

7. Individuals with current or past history of seizure disorders;

Related Conditions & MeSH terms

• Marijuana Abuse
• Pain

Intervention

Drug:
• Active CBD/THC Dose 1
Subjects will self-administer the assigned study medication daily at home after pickup and will be tested using medication compliance procedures. Subjects will visit the center 2 times in the 7-day period on days 1 and 7 for blood draws to assess medication compliance.
• Active CBD/THC Dose 2
Subjects will self-administer the assigned study medication daily at home after pickup and will be tested using medication compliance procedures. Subjects will visit the center 2 times in the 7-day period on days 1 and 7 for blood draws to assess medication compliance.
• matched placebo comparator
Subjects will self-administer the assigned study medication daily at home after pickup and will be tested using medication compliance procedures. Subjects will visit the center 2 times in the 7-day period on days 1 and 7 for blood draws to assess medication compliance.

Locations

Country	Name	City	State
United States	The Yale Stress Center: Yale University	New Haven	Connecticut

Sponsors (2)

Lead Sponsor	Collaborator
Yale University	Connecticut Pharmaceutical Solutions

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Average heart rate	Seated heart rate will be assessed repeatedly via Dinamap.	From day 1 up to day 7
Primary	Average Systolic and Diastolic Blood Pressure	Seated systolic and diastolic blood pressure will be assessed repeatedly via Dinamap.	From day 1 up to day 7
Secondary	Total Pain Score	This outcome will be measured by the summed score of the items of the McGill Pain Questionnaire (MPQ). This is a 15-item questionnaire; each item is measured on a 0-3 scale. Items are summed to obtain a total pain score (0-45). Higher scores indicate greater pain.	From Day 1 to Day 7