Behavioral Pharmacology of Orally Administered THC and D-limonene
Johns Hopkins University
Summary
The current clinical trial will investigate the effects of orally administered d-limonene (limonene), delta-9-tetrahydrocannabinol (THC) and the combination in healthy adult volunteers.
Description
The current clinical trial will investigate the interaction of orally administered d-limonene (limonene) and delta-9-tetrahydrocannabinol (THC). Limonene is a flavor/fragrance component common to many plants, including cannabis. The investigators have previously demonstrated that vaporized limonene can impact the acute effects of THC. The purpose of this study is to examine whether orally administered limonene modulates the acute effects of orally co-administered THC in a manner similar to when these substances are inhaled A controlled laboratory study will be completed at Johns Hopkins evalua…
Eligibility
- Age range
- 21–55 years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: * Have provided written informed consent * Be between the ages of 21 and 55 * Be in good general health based on a physical examination, medical history, vital signs, and screening urine and blood tests * Test negative for drugs of abuse other than cannabis, including breath alcohol at the screening visit and at clinic admission * Not be pregnant or nursing (if female). All females must have a negative serum pregnancy test at the screening visit and a negative urine pregnancy test at clinic admission. * Have a body mass index (BMI) in the range of 18 to 36 kg/m2 * Blood pr…
Interventions
- DrugD-Limonene
Oral Limonene administered via capsule
- DrugDelta-9-THC
Oral delta-9-THC in ethanol vehicle administered via capsule
- DrugPlacebo
Placebo (cellulose) administered via capsule
Location
- Johns Hopkins Behavioral Pharmacology Research UnitBaltimore, Maryland