Terpenes: the next frontier in pain relief?
NCT ID NCT04451863
First seen Jun 27, 2026 · Last updated Sep 09, 2026 · Updated 2 times
Summary
This study looks at whether terpenes—natural compounds found in plants—can reduce pain when taken alone or with THC. Researchers will test 45 adults who use cannabis regularly to measure pain relief and any feelings of being high or drug liking. The goal is to find safer ways to manage pain without increasing the risk of drug abuse.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 45 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2021
- Expected to finish
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Nov 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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21 to 55 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Male or non-pregnant female aged 21-55 years * Report non-medical use of cannabis 1-7 days per week over the 1 month prior to screening * Not currently seeking treatment for cannabis use * Urine test positive for recent cannabis use * Have a Body Mass Index from 18.5 - 34kg/m2. * Able to perform all study procedures * Must be using a contraceptive method (hormonal or barrier methods) Exclusion Criteria: * Meeting DSM-V criteria for any substance use disorder other than nicotine, caffeine, or mild CUD * Report using other illicit drugs in the prior 4 weeks * • If medical history, physical and psychiatric examination, or laboratory tests performed during the screening process not within the normal range and / or reveal any significant illness (e.g., hypertension) as judged by the study physician and to put the participant at greater risk of experiencing adverse events due to completion of study procedures. * Current licit use of cannabis primarily for medical purposes, prescription analgesics, or any medications that may affect study outcomes * Current pain * Pregnancy is exclusionary due to the possible effects of the study medication on fetal development. * History of an allergic reaction or adverse reaction to cannabis is exclusionary. * History of respiratory illness or current respiratory illness * History of seizure disorder or current seizure disorder * Insensitivity to the cold water stimulus of the Cold Pressor Test * Currently enrolled in another research protocol * Current major Axis 1 disorders (mood, anxiety, or psychotic disorder) * Not using a contraceptive method (hormonal or barrier methods) * The evaluating physician reviews all medical assessments along with medical history. Any disorders that might make cannabis administration hazardous are exclusionary.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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University of California, Los Angeles
Los Angeles, California, 90095, United States
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