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Stimulation of External Carotid Artery Circulation

Feasibility and Safety of Endovascular Bipolar Stimulation of the Middle Meningeal Artery for Refractory Headaches (MMA-Stim)

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07402954
Acronym
MMA-Stim
Enrollment
12
Registered
2026-02-11
Start date
2026-01-16
Completion date
2027-08-01
Last updated
2026-02-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Migraine

Keywords

Migraine, External carotid artery circulation, Bipolar Stimulation

Brief summary

This study is testing a new approach to help people with migraine headaches. Researchers want to find out if using electrical stimulation to affect blood flow in the external carotid artery is safe and practical for helping control headaches. The goal of the study is to determine whether this approach could improve headache symptoms and overall outcomes for people with migraines.

Interventions

DEVICECadwell Cascade 32 PRO

Cascade 32 PRO will be to gently deliver electrical pulses.

Sponsors

The University of Texas Medical Branch, Galveston
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

* Age ≥18 * Chronic migraine or status migrainosus, or craniofacial pain refractory to maximal medical therapy who are undergoing MMA IA lidocaine infusion. * Subject has provided informed consent.

Exclusion criteria

* Known allergies to lidocaine * Seizure disorder, history of seizures, or increased seizure susceptibility * Intracranial vascular malformations or dural AVF * Hemodynamic instability, any condition where brief hemodynamic shifts may pose risk * Previous MMA intervention or craniotomy that could result in MMA occlusion * Any implanted electronic device (pacemaker, ICD, DBS, VNS, cochlear implant, spinal cord stimulator) * Significant cardiovascular disease (unstable angina, severe arrhythmias, recent MI) * Severe autonomic dysfunction * Active systemic infection * Vulnerable populations (i.e. pregnant individuals, children, prisoners, individuals lacking decision-making capacity, persons with cognitive impairment, those unable to provide informed consent)

Design outcomes

Primary

MeasureTime frameDescription
Safety of Bipolar external carotid artery circulation StimulationMeasured Perioperative/Periprocedural and through the immediate post-procedural period (up to 24 hours).Safety will be evaluated based on the ability to complete the stimulation procedure without technical failure, serious complications, or procedure-related neurological deficits.
Feasibility of Bipolar external carotid artery circulation StimulationMeasured Perioperative/Periprocedural and through the immediate post-procedural period (up to 24 hours).Feasibility will be demonstrated if stimulation can be successfully initiated and completed using the intended bipolar approach.

Secondary

MeasureTime frameDescription
Physiologic Responses During StimulationPerioperative/PeriproceduralPhysiologic responses, including heart rate, blood pressure, respiratory rate, and oxygen saturation, will be recorded during active stimulation to assess acute physiologic effects.
Patient-Reported Qualitative OutcomesAt 24 hours, 7 days, 30 days, and 90 days after the procedure.Patient-reported qualitative outcomes includes perceived headache relief, tolerability of the intervention, and the presence of any new or worsening symptoms.
Number of Adverse EventsPerioperative/Periprocedural, and at follow-up at 7 days, 30 days, and 90 days.Adverse events and serious adverse events including seizures, vascular complications, and signs of lidocaine toxicity.
Headache Severity Measured by the Visual Analog Scale (VAS)At baseline, Perioperative/Periprocedural, immediately post-procedure, and at following post-op times 2-4 hours, 7 days, 30 days, and 90 days.Headache severity will be assessed using the Visual Analog Scale (VAS), a validated 0-10 cm scale in which participants indicate headache intensity by marking a point along a continuous line representing "no pain" to "worst pain."

Countries

United States

Contacts

CONTACTMatias Costa, MD
mlcosta@utmb.edu409-772-0330
CONTACTPatrick Karas, MD
pjkaras@utmb.edu409-772-0330
PRINCIPAL_INVESTIGATORPeter Kan, MD,MPH

University of Texas Medial Branch

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026