NCT06891118

Brief Summary

Stellate Ganglion Block (SGB) is an interventional anesthetic technique used to treat pain conditions affecting the head, face, neck, and upper extremities by temporarily blocking sympathetic nerve output. Ultrasound guidance improves anatomical visualization and enhances procedural safety. Emerging evidence suggests that repeated ultrasound-guided SGB may reduce headache intensity and frequency in migraine patients and may improve migraine-related disability. However, limited data exist regarding its role in highly treatment-resistant chronic migraine, particularly in patients who have not responded adequately to preventive pharmacological therapies and peripheral nerve block interventions. The primary objective of this study is to evaluate the clinical efficacy of ultrasound-guided SGB in patients with treatment-resistant chronic migraine. Secondary objectives include assessing changes in migraine-related disability and monitoring potential adverse events.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
42

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Mar 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 6, 2024

Completed
1 year until next milestone

First Submitted

Initial submission to the registry

March 6, 2025

Completed
18 days until next milestone

First Posted

Study publicly available on registry

March 24, 2025

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2025

Completed
Last Updated

February 27, 2026

Status Verified

February 1, 2026

Enrollment Period

1.8 years

First QC Date

March 6, 2025

Last Update Submit

February 25, 2026

Conditions

Keywords

Migraine, Stellate Ganglion, Nerve Blockadeultrasonography guided

Outcome Measures

Primary Outcomes (1)

  • Change in Monthly Headache Days (MHD)

    Change in the number of Monthly Headache Days from baseline to 6 months, as recorded using prospective patient headache diaries.

    Baseline to 6 months

Secondary Outcomes (5)

  • Visual Analog Scale (VAS) pain score

    Baseline, 1 month, 3 months, and 6 months

  • Number of Days Requiring Analgesic Use

    Baseline, 1 month, 3 months, and 6 months

  • The Global Perceived Effect (GPE)

    1 month, 3 months, and 6 months

  • Headache Impact Test (HIT-6) Score

    Baseline, 1 month, 3 months, and 6 months

  • Migraine Disability Assessment (MIDAS) Score

    Baseline, 3 months, and 6 months

Study Arms (1)

SGB blockade patients

EXPERIMENTAL

18- 65 years of age, diagnosed with chronic migraine in accordance with ICHD-3 criteria, used migraine preventive medication drugs and other interventional algologic treatments that have been applied at least three months ago with insufficient benefit are volunteer patients.

Procedure: Stellate gangion blockade %1 5 mL

Interventions

SGB is performed under sterile conditions in the operating room, with the patient's intravenous line established, monitored during the procedure, and ultrasound guidance used simultaneously. The patient is positioned supine, with the neck slightly hyperextended and the head slightly turned to the opposite side. After the skin is cleaned with an antiseptic solution and the probe is sterilized, a linear ultrasound probe is placed transversely at the level of the sixth cervical vertebra (C6). The relevant anatomical landmarks, including the internal carotid artery, internal jugular vein, thyroid tissue, longus colli muscle, prevertebral fascia, C6 transverse process (Chassaignac's tubercle), C6 nerve root, and vertebral artery, are visualized. Avoiding vascular structures and thyroid tissue, a 25-gauge 38 mm sterile needle is advanced with a lateral approach using the in-plane technique, ensuring the needle tip is just below the surface of the longus colli m

SGB blockade patients

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years of age, diagnosed with chronic migraine in accordance with ICHD-3 criteria,
  • used migraine preventive medication drugs and
  • other interventional algologic treatments that have been applied at least three months ago with insufficient benefit are volunteer patients.

You may not qualify if:

  • Migraine according to ICHD-3 criteria has a history of primary headache other than migraine,
  • migraine preventive interventional treatment within the last 3 months and/or botulinum toxin A, nonpharmacological treatment (acupuncture, ozone, cognitive behavioral therapy, etc.),
  • injection infection at the site,
  • pregnancy or suspected pregnancy,
  • known allergy to local anesthetic drugs with a history of malignancy or cranial/cervical surgery,
  • bleeding-coagulation disorder or oral anticoagulants,
  • comorbid diseases that may cause headache (uncontrolled hypertension, intracranial lesions),
  • with diseases that may prevent compliance with treatment (psychiatric disorder, dementia) and
  • patients who did not accept the planned interventional treatment were excluded from the study will be released.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Health Sciences University, Ankara Bilkent City Hospital

Ankara, Cankaya, 06800, Turkey (Türkiye)

Location

Related Links

MeSH Terms

Conditions

Migraine Disorders

Condition Hierarchy (Ancestors)

Headache Disorders, PrimaryHeadache DisordersBrain DiseasesCentral Nervous System DiseasesNervous System Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: A single-center, prospective, cross-sectional observational study
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Medical doctor

Study Record Dates

First Submitted

March 6, 2025

First Posted

March 24, 2025

Study Start

March 6, 2024

Primary Completion

December 30, 2025

Study Completion

December 30, 2025

Last Updated

February 27, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

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