[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100632325":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":32,"centralContacts":33,"locations":32,"responsibleParty":39,"collaborators":32,"id":43,"slug":32,"hasResults":44,"nctId":45,"briefTitle":46,"officialTitle":47,"acronym":32,"eligibilityCriteria":48,"healthyVolunteers":44,"sex":49,"minAge":50,"maxAge":51,"enrollmentInfo":52,"targetDuration":32,"studyType":55,"phases":56,"briefSummary":47,"conditions":58,"keywords":32,"overallStatus":60,"whyStopped":32,"lastUpdateSubmitDate":61,"lastUpdatePostDateStruct":62,"startDateStruct":65,"completionDateStruct":67,"leadSponsor":69,"locationsCount":32},{"fullName":5,"class":6},"Sohag University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Group of Greater Occiptal nerve Block , GONB","ACTIVE_COMPARATOR","Injection Procedure:\n\n1. Local skin infiltration with 1-2 mL of 1% lidocaine at puncture site.\n2. GON block using 3-5 mL of local anesthetic, optionally combined with 20-40 mg triamcinolone ( Bilaterally )\n3. Needle placement confirmed by ultrasound visualization of the nerve and spread of injectate.\n4. Observe patient for 15-20 minutes post-injection for immediate adverse events.",[13],"Drug: Greater occiptal nerve block",{"label":15,"type":10,"description":16,"interventionNames":17},"Group of Pulsed Radiofrequency , PRF","1. Introduce RF cannula adjacent to GON under ultrasound guidance.\n2. Confirm sensory stimulation: paresthesia at occipital scalp at \\\u003C0.5 V.\n3. PRF settings:\n\n   * Temperature: ≤42°C\n   * Pulse duration: 20 ms\n   * Frequency: 2 Hz\n   * Duration: 120 seconds per cycle, 2 cycles per side\n4. Continuous monitoring of patient comfort and vital signs.",[18],"Device: Pulsed radiofrequency",[20,26],{"type":21,"name":22,"description":11,"armGroupLabels":23,"otherNames":24},"DRUG","Greater occiptal nerve block",[9],[25],"GONB",{"type":27,"name":28,"description":16,"armGroupLabels":29,"otherNames":30},"DEVICE","Pulsed radiofrequency",[15],[31],"PRF",null,[34],{"name":35,"role":36,"phone":37,"phoneExt":32,"email":38},"shehab Mahmoud mohamed, assisstant lecturer","CONTACT","0201090442332","shehabmahmoud@med.sohag.edu.eg",{"type":40,"investigatorFullName":41,"investigatorTitle":42,"investigatorAffiliation":5,"oldNameTitle":32,"oldOrganization":32},"PRINCIPAL_INVESTIGATOR","Shehab Mahmoud Mohamed","assistant lecturer in faculty of medicine sohag university","100632325",false,"NCT07512219","Comparison Between Greater Occipital Nerve Block and Pulsed Radiofrequency in the Management of Chronic Migraine","Comparative Study of Greater Occipital Nerve Block and Pulsed Radiofrequency in the Management of Chronic Migraine : Clinical Outcomes and Neurophysiological Correlates A Prospective Randomized Study","Inclusion Criteria:\n\n* patient with Diagnosis of chronic migraine for \\> 3 months.\n* migraine days ≥ 15 days\u002Fmonth.\n* Failure or inadequate response to standard medical treatment.\n\nExclusion Criteria:\n\n* Secondary headache disorders.\n* Coagulopathy or anticoagulant therapy.\n* Infection at injection site.\n* History of cervical spine surgery.\n* Pregnancy or breastfeeding.\n* Previous PRF or occipital nerve surgery within last 3 months","ALL","18 Years","65 Years",{"count":53,"type":54},70,"ESTIMATED","INTERVENTIONAL",[57],"NA",[59],"Chronic Migraine, Headache","NOT_YET_RECRUITING","2026-03-30",{"date":63,"type":64},"2026-04-06","ACTUAL",{"date":66,"type":54},"2026-05-01",{"date":68,"type":54},"2027-05-01",{"name":5,"class":6}]