EMBRACE-OBS: Single-Site Observational Registry of Patient-Reported Outcomes Following MMA Embolization for Migraine (EMBRACE-OBS)

June 16, 2026 updated by: Cortex Neurovascular

Enduring Migraine Benefit From Responsive Artery Coil Embolization - Observational (EMBRACE-OBS): A Single-Site Registry of Patient-Reported Outcomes Following Routine Clinical Care for Migraine

EMBRACE-OBS is the first phase of the EMBRACE research program. This single-site observational registry accesses and analyzes patient-reported outcome data already collected through routine clinical care from adults with migraine who have undergone or plan to undergo middle meningeal artery (MMA) embolization. The study describes changes in headache frequency, headache severity, medication use, migraine-related disability, quality of life, and reported adverse events over time without influencing clinical care.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

EMBRACE-OBS is the first phase of the EMBRACE research program and is conducted as a single-site observational registry at Cortex Neurovascular.

Migraine is a prevalent neurological disorder that can significantly affect quality of life and daily functioning. Middle meningeal artery (MMA) embolization is performed using FDA-cleared embolic devices. When used for migraine, the procedure is performed at the discretion of the treating physician as part of routine clinical care and independent of research participation.

The purpose of this registry is to access and analyze clinical and patient-reported outcome data already collected through routine clinical care in patients who have undergone or plan to undergo MMA embolization for migraine. The study does not influence clinical decision-making, procedural technique, device selection, or follow-up care.

The primary objective is to describe changes in patient-reported headache frequency and severity over time following MMA embolization performed as part of routine clinical care.

Secondary objectives include describing changes in acute headache medication use, migraine-related disability, quality-of-life measures, medication use patterns, temporal patterns of symptom change, and the real-world safety profile of the procedure as reflected by reported adverse events and complications.

Patient follow-up occurs through routine clinical care. Data accessed for this registry may include headache diaries, HIT-6 scores, clinical information, procedural information, medication use, and outcomes documented during routine clinical follow-up visits. No study-mandated interventions, procedures, visits, or assessments are performed. The research activity consists solely of accessing and analyzing information already documented during routine care.

EMBRACE-OBS is conducted under a separate IRB-approved protocol (Solutions IRB Study 2026-Jun-1013). A separate interventional phase of the EMBRACE research program (EMBRACE-Full; NCT07313800) may be conducted in the future under appropriate regulatory approvals.

Study Type

Observational

Enrollment (Estimated)

50

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

  • Name: Dennis Wang, Principal Investigator, MD
  • Phone Number: 253-284-0841
  • Email: dwang@cortexmgmt.com

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Adults aged 18 to 64 years with a diagnosis of migraine who have undergone or plan to undergo middle meningeal artery (MMA) embolization as part of routine clinical care at Cortex Neurovascular. Participants are enrolled in a prospective observational registry that accesses and analyzes clinical and patient-reported outcome data already documented during routine care. Enrollment does not influence clinical decision-making, procedural technique, device selection, or follow-up care.

Description

Inclusion Criteria:

  • Adults aged 18 to 64 years
  • Diagnosis of migraine
  • Have undergone or plan to undergo middle meningeal artery (MMA) embolization as part of routine clinical care, independent of study participation
  • Able and willing to provide informed consent
  • Able to read and understand English sufficiently to complete informed consent and patient-reported outcome assessments

Exclusion Criteria:

  • Age under 18 years
  • Pregnancy at the time of enrollment
  • Inability to provide informed consent
  • Inability to read and understand English sufficiently to complete informed consent and patient-reported outcome assessments
  • Insufficient clinical or patient-reported outcome data for the planned analyses

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Migraine Patients Undergoing MMA Embolization
Adults aged 18 to 64 years with a diagnosis of migraine who have undergone or plan to undergo middle meningeal artery (MMA) embolization as part of routine clinical care. Participants are enrolled in an observational registry that accesses and analyzes clinical and patient-reported outcome data already documented through routine care. Study participation does not influence clinical management, procedural technique, device selection, or follow-up.
Procedure: Middle Meningeal Artery Embolization
Middle meningeal artery (MMA) embolization performed as part of routine clinical care at the discretion of the treating physician. The procedure is independent of study participation and is not assigned by the study protocol. The research activity consists solely of accessing and analyzing data already documented through routine clinical care.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Patient-Reported Headache Frequency
Time Frame: Baseline and 12 Months
Change in patient-reported headache frequency, measured as headache days per month, from baseline to 12 months following middle meningeal artery (MMA) embolization performed as part of routine clinical care.
Baseline and 12 Months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in HIT-6 Score
Time Frame: Baseline and 12 Months
Change in migraine-related disability as assessed by the Headache Impact Test (HIT-6) score (range: 36-78; higher scores indicate greater headache impact/worse outcome) documented during routine clinical care.
Baseline and 12 Months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Cortex Neurovascular

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

July 1, 2026

Primary Completion (Estimated)

June 1, 2028

Study Completion (Estimated)

June 1, 2028

Study Registration Dates

First Submitted

June 11, 2026

First Submitted That Met QC Criteria

June 11, 2026

First Posted (Actual)

June 16, 2026

Study Record Updates

Last Update Posted (Actual)

June 18, 2026

Last Update Submitted That Met QC Criteria

June 16, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • EMBRACE-OBS

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Subscribe