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Study identifier: NCT05769348 Synced from ClinicalTrials.gov · August 11, 2026
● Study status: Recruiting

Investigation and Modulation of the Central Mu-Opioid Mechanism in Migraine (in Vivo)

Condition: Chronic Migraine  ·  Sponsor: University of Michigan

PhaseNA
Planned participants80
Who can joinAll sexes, 18 Years to 65 Years
Healthy volunteersNoCheck eligibility criteria ↓
WhereAnn Arbor, Michigan, United States

Interested? Contact the study team ↓

For sponsors, CROs & site teams
Professional view of this study — listed sites, countries and recruiting context from the public registry. Everything below is written for patients and caregivers.See where this study is running →

About this study

This study investigates whether unilateral and bilateral non-invasive brain stimulation, given for 20 minutes/once per day for twenty days (M-F) can reduce migraine pain. Fourty patients will receive treatment (20 unilateral treatment, and 20 bilateral treatment), while twenty will receive a "sham" procedure. Another 20 Episodic Migraine patients will be recruited for the observational aim of the study which does not include brain stimulation.

This description comes directly from the study's public registry record.

Talk to the study team

Jacqueline Dobson, BA  ·  (734)763-8469  ·  contactHOPE@umich.edu

There is no obligation to join — the study team can answer your questions about taking part.

Always discuss trial participation with your own doctor first.

Full eligibility criteria (exactly as the study team wrote them)

Inclusion Criteria: * Male or female, aged 18 to 65 (inclusive) * Patients must have Episodic migraines that started before the age of 50, and currently experience: * Chronic migraine (ICHD-3-beta), headache occurring on 15 days/month for more than six months, which, on at least eight days/month, has the features of a migraine headache. * Episodic migraine (low frequency), specifically those with headache occurring less than 8 days/month. * Willing to limit the introduction of new treatments and medications during the study period. Exclusion Criteria: * Significantly greater pain in body sites other than the head * Active, untreated major concurrent systemic illness other than migraine * Medical conditions that can impair health status independent of migraine (including cardiopulmonary disorders, malignancy, uncontrolled endocrine or allergies) * Systemic rheumatic disorders (i.e., rheumatoid arthritis, systemic lupus erythematosus, gout, and fibromyalgia); * History or current evidence of a psychotic disorder (e.g., bipolar disorder, schizophrenia) or severe major depression, as evidenced by Beck Depression score of \>30\* * History of neurological disorder (e.g., epilepsy, stroke, neuropathy, neuropathic pain) * Medication overuse headache (ICHD-3), regular intake for ≥10 days per month of ergotamine, triptans, combination analgesics, or any combination thereof OR ≥15 days per month of simple analgesics (acetaminophen, aspirin, NSAID), for more than 3 months * Current use of opioid or dopaminergic drugs (or use within the last 3 months) or substance abuse (self-reported) * Drug test positive for opioid or recreational drug (e.g., cannabis) at the time of the PET scan visits * Allergic response to study radiotracers or chemically related drugs * Excluded by MRI Center or PET Center safety screening checklist (as administered by study staff) * Pregnant or lactating (negative urine pregnancy test must be available before any PET procedures are initiated) * Prior use of tDCS

Reproduced word-for-word from the public registry record — the study team can answer questions about it.

Locations (1)

University of MichiganAnn Arbor, Michigan, United StatesRecruiting

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Ann Arbor

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