Chronic jaw pain may drive heavier drinking, new study investigates
NCT ID NCT06659991
First seen Jun 26, 2026 · Last updated Jul 10, 2026 · Updated 3 times
Summary
This study looks at how chronic jaw pain (TMD) influences drinking patterns in heavy drinkers. Researchers will compare people with and without TMD pain, measuring how they drink alcohol in a lab setting and in daily life. The goal is to understand why pain increases the risk of alcohol-related problems, which could lead to better support for those affected.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- ethanol
- What this could lead to
- If successful, this study could help explain why people with chronic pain are at higher risk for alcohol problems, pointing toward better prevention strategies.
- What could go wrong
- This is an early-phase observational study with only 160 participants, so results may not apply to everyone. It looks at behavior, not treatment, so no direct health benefit is expected.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Early phase 1
The earliest testing in people: a first look at safety, in a very small group.
- Participants
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About 160 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2025
- Expected to finish
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Sep 2029
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 65 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: * Participants in this study must be 21 years to 65 years of age and provide a driver's license or other state-issued ID. * Participants must also be sufficiently fluent in English to provide informed consent and understand questionnaires and instructions for laboratory procedures. * Participants must report drinking of, on average, at least 1 drink 3 days/week over the past 6 months. * Meet Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) for myalgia (masticatory muscle pain), arthralgia (TMJ pain), or a combination (Schiffman et al., 2014) (TMD group only). * Own a smartphone with internet access. * Use of prescription medications will be allowed, provided they do not contraindicate alcohol use. Exclusion Criteria: * Use of opioid analgesics within the past month; * Current major depression; * History of any psychotic disorder; * Under-controlled hypertension or diabetes (as reflected by self-report); neurological disease (e.g., multiple sclerosis, epilepsy, amyotrophic lateral sclerosis, Parkinson's disease); * Serious medical illness (e.g., hepatitis, HIV/AIDS); * Impaired cognitive function; * History of substance use disorder (including nicotine/tobacco); * Alcohol naïve * Alcohol use disorder, or currently attempting to quit or cut down on using alcohol * Positive pregnancy test * Breastfeeding or intending to become pregnant * Loss of sensation in the lower leg * Inability to complete study tasks due to weakness, immobilization, or loss of limbs * Chronic pain (Control group only) * A urine-based drug screen for tetrahydrocannabinol, cocaine, benzodiazepines, morphine, and methamphetamine (Innovacon, Inc., San Diego, CA) will be performed. Participants testing positive for any substance will be discontinued. * Medications that contraindicate alcohol use
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Minnesota
RECRUITINGMinneapolis, Minnesota, 55414, United States
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Other studies related to the condition(s) this trial covers.
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