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Treatment Response in Patients With Medication-Overuse Headache

Factors Affecting Treatment Response in Patients With Medication-Overuse Headache Undergoing Greater Occipital Nerve Blockade

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07487649
Enrollment
70
Registered
2026-03-23
Start date
2026-03-17
Completion date
2026-05-30
Last updated
2026-09-09

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

Conditions

Greater Occipital Nerve Block, Headache, Medication-overuse Headache, Treatment

Brief summary

The aim of this study to evaluate pre-injection patient-related factors that may influence treatment response in patients with medication-overuse headache who underwent ultrasound-guided greater occipital nerve block.

Interventions

OTHERTreatment outcome

Before the injection, patients will be evaluated for the number of headache days, headache severity, the number of days of analgesic use for headache, headache-related disability, pressure pain threshold over the bilateral greater occipital nerve, anxiety and depression scores, and sleep quality. At 1 and 2 months after the injection, they will be reassessed for the number of headache days, headache severity, and the number of days of analgesic use for headache. In addition, at 1 hour after the injection, the pain experienced during the injection procedure will be assessed.

Sponsors

Sultan 1. Murat State Hospital
Lead SponsorOTHER_GOV

Study design

Observational model
CASE_CONTROL
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years

Inclusion criteria

* Age between 18 and 65 years * Diagnosis of medication-overuse headache according to the International Classification of Headache Disorders, 3rd edition (ICHD-3) * Diagnosis of medication-overuse headache associated with the use of triptans or nonsteroidal anti-inflammatory drugs * Previous diagnosis of chronic migraine or chronic tension-type headache according to the ICHD-3 criteria

Exclusion criteria

* History of severe head or neck trauma or previous neurosurgical intervention * Presence of a severe psychiatric disorder (e.g., severe depression, schizophrenia) * History of infectious disease, chronic inflammatory disease, or malignancy * Previous diagnosis of secondary headache * History of substance abuse * Pregnancy or breastfeeding * History of an additional neurological disorder (e.g., cerebrovascular disease, multiple sclerosis) * Difficulty with cooperation * Presence of a concomitant systemic disease that may affect quality of life (e.g., congestive heart failure, chronic kidney disease, chronic liver disease, pulmonary disease, uncontrolled diabetes, or peripheral vascular disease)

Design outcomes

Primary

MeasureTime frameDescription
the number of days of analgesic use for headacheBaselinePatients will be questioned the total number of days on which they used analgesics for headache during the past month.

Secondary

MeasureTime frameDescription
Headache severityBaselinePatients will be questioned about headache severity using the Visual Analog Scale (VAS). A 10-cm-long horizontal straight line will be used for VAS assessment. 0 is considered no pain, and 10 is considered the most severe pain.
Post-injection pain severityBaselinePatients will be questioned about post-injection pain severity using the Visual Analog Scale (VAS). A 10-cm-long horizontal straight line will be used for VAS assessment. 0 is considered no pain, and 10 is considered the most severe pain.
Headache-related disabilityBaselinePatients will be questioned about headache-related disability using the Headache Impact Test-6 (HIT-6). The HIT-6 consists of six items, each scored on a 5-point Likert scale. The total score is calculated by summing the scores of all six items, with higher scores indicating a greater impact of headache on daily life.
Pressure pain thresholdBaselineThe pressure pain threshold over the bilateral greater occipital nerve will be assessed using a manual pressure algometer (Baseline Dolorimeter®). Pressure pain threshold measurement will be performed over the medial one-third of an imaginary line drawn between the external occipital protuberance and the mastoid process. During the measurement, the 1.52 cm² flat circular probe of the algometer will be placed on the relevant area, and pressure will be increased at a rate of 1 kg per second. Patients will be asked to indicate the moment they first perceived pain. The value for the reference area will be calculated as the arithmetic mean of the right and left measurements.
Anxiety and depression levelsBaselinePatients' anxiety and depression symptoms will be assessed using the Hospital Anxiety and Depression Scale (HADS). The HADS is a 14-item scale consisting of two subscales: anxiety and depression. For each subscale, the minimum score is 0 and the maximum score is 21. Higher scores indicate greater severity of anxiety and depression symptoms.
Sleep qualityBaselinePatients will be evaluated in terms of sleep quality using a 4-point Likert-type scale. They wii be asked to describe their sleep quality by selecting one of the following options: "good," "mildly impaired," "moderately impaired," or "severely impaired."

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 10, 2026