Investigating brain connectivity in cluster headache patients

The Role of Resting State Networks Connectivity in Cluster Headache: a HD-EEG Study

IRCCS National Neurological Institute "C. Mondino" Foundation · NCT06206772

This study looks at how brain activity is connected in people with cluster headaches during painful episodes and when they are feeling better to see if it can help find new treatments.

Quick facts

Study typeObservational
Enrollment20 (estimated)
Ages18 Years to 70 Years
SexAll
SponsorIRCCS National Neurological Institute "C. Mondino" Foundation (other)
Locations1 site (Pavia)
Trial IDNCT06206772 on ClinicalTrials.gov

What this trial studies

This observational study aims to explore brain connectivity in patients with episodic and chronic cluster headaches using high-density electroencephalogram (HD-EEG) recordings. The researchers will compare functional connectivity during active headache phases to remission phases, focusing on brain oscillations across various frequency bands. By analyzing these patterns, the study seeks to identify potential markers or predictors for therapeutic interventions in cluster headache management.

Who should consider this trial

Good fit: Ideal candidates include individuals diagnosed with episodic or chronic cluster headaches who have a history of the condition for at least one year.

Not a fit: Patients with a history of epilepsy, psychiatric illnesses, or other chronic pain conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and treatment options for patients suffering from cluster headaches.

How similar studies have performed: While previous studies have explored EEG in migraine patients, this approach in cluster headache is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosis of 3.1.1 episodic cluster headache, or 3.1.2 chronic cluster headache, according to the International Classification of Headache Disorders-3 (ICHD-3) criteria
* History of at least 1 year of disease
* For the active-phase recording (T0) in eCH, no preventive medication ongoing or verapamil at a stable dose for at least 2 weeks
* For the remission-phase recording (T1), no preventive medication ongoing, and at least 14 headache-free days since preventive discontinuation

Exclusion Criteria:

* Previous or actual history of epilepsy
* Diagnosis of dementia o mental retardation
* Diagnosis of psychiatric illness according to Diagnostic and Statistical Manual of Mental Disorders V
* Other concomitant type of headache (except for sporadic tension type headache)
* Chronic pain conditions
* Pregnancy or breastfeeding
* Concomitant use of electrical stimulators, pace-makers, metallic clips or other metallic foreign bodies
* Previous head surgery
* Ongoing neuroactive prevention therapies or other drugs, or psychoactive substances possibly interfering with EEG recording (eg benzodiazepines)
* Other conditions possibly influencing EEG recording
* Brain anomalies detected on MRI

Healthy controls (HCs)

Inclusion Criteria:

* Age and sex-matched healthy volunteers, without history of headache disorders except sporadic tension-type headache according to ICHD-3 criteria

Exclusion Criteria:

* Previous or actual history of epilepsy
* Diagnosis of dementia o mental retardation
* Diagnosis of psychiatric illness according to Diagnostic and Statistical Manual of Mental Disorders V
* Chronic pain conditions
* Pregnancy or breastfeeding
* Concomitant use of electrical stimulators, pace-makers, metallic clips or other metallic foreign bodies
* Previous head surgery
* Ongoing neuroactive prevention therapies or other drugs, or psychoactive substances possibly interfering with EEG recording (eg benzodiazepines)
* Other conditions possibly influencing EEG recording

Where this trial is running

Pavia

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Cluster Headache, Headache Disorders

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.