{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Headache%2C+Cluster&page=2",
    "query": {
      "condition": "Headache, Cluster",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Headache%2C+Cluster&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T13:59:14.170Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT02964338",
      "title": "A Study Comparing the Efficacy and Safety of Fremanezumab (TEV-48125) for the Prevention of Chronic Cluster Headache (CCH)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Cluster Headache"
      ],
      "interventions": [
        {
          "name": "Fremanezumab",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Teva Branded Pharmaceutical Products R&D, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 259,
      "start_date": "2017-01-17",
      "completion_date": "2018-07-18",
      "has_results": true,
      "last_update_posted_date": "2021-11-09",
      "last_synced_at": "2026-09-24T13:59:14.170Z",
      "location_count": 32,
      "location_summary": "Phoenix, Arizona • Canoga Park, California • Santa Monica, California + 28 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Canoga Park",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02964338"
    },
    {
      "nct_id": "NCT01298921",
      "title": "A Pilot Study of Demand Valve Oxygen Inhalation Therapy for Cluster Headache",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cluster Headache"
      ],
      "interventions": [
        {
          "name": "Oxygen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Geisinger Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 4,
      "start_date": "2011-01",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2019-07-11",
      "last_synced_at": "2026-09-24T13:59:14.170Z",
      "location_count": 1,
      "location_summary": "Wilkes-Barre, Pennsylvania",
      "locations": [
        {
          "city": "Wilkes-Barre",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01298921"
    },
    {
      "nct_id": "NCT00033839",
      "title": "A Phase III Study of Civamide Nasal Solution (Zucapsaicin) for the Treatment of Episodic Cluster Headache",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Episodic Cluster Headache"
      ],
      "interventions": [
        {
          "name": "Civamide (Zucapsaicin)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Winston Laboratories",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2002-01",
      "completion_date": "2003-07",
      "has_results": false,
      "last_update_posted_date": "2011-06-10",
      "last_synced_at": "2026-09-24T13:59:14.170Z",
      "location_count": 26,
      "location_summary": "Phoenix, Arizona • Tucson, Arizona • Mountain View, California + 23 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Mountain View",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00033839"
    },
    {
      "nct_id": "NCT02910323",
      "title": "The Will Erwin Headache Research Center - Cluster Headache Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cluster Headache",
        "Cluster Headaches and Other Trigeminal Autonomic Cephalgias",
        "Paroxysmal Hemicrania",
        "SUNCT",
        "Hemicrania Continua",
        "Trigeminal Neuralgia"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1500,
      "start_date": "2016-07-12",
      "completion_date": "2035-12",
      "has_results": false,
      "last_update_posted_date": "2026-02-18",
      "last_synced_at": "2026-09-24T13:59:14.170Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02910323"
    },
    {
      "nct_id": "NCT02397473",
      "title": "A Study Of Galcanezumab In Participants With Episodic Cluster Headache",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Episodic Cluster Headache"
      ],
      "interventions": [
        {
          "name": "Galcanezumab",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 109,
      "start_date": "2015-05-22",
      "completion_date": "2018-06-04",
      "has_results": true,
      "last_update_posted_date": "2019-09-09",
      "last_synced_at": "2026-09-24T13:59:14.170Z",
      "location_count": 17,
      "location_summary": "Los Angeles, California • Palo Alto, California • Santa Monica, California + 14 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        },
        {
          "city": "Stamford",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02397473"
    },
    {
      "nct_id": "NCT02392273",
      "title": "A Prospective Observational Registry of Primary Headache Patients Treated With Ausanil",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Primary Headache Disorders"
      ],
      "interventions": [
        {
          "name": "Ausanil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "VR1 Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 20,
      "start_date": "2015-02",
      "completion_date": "2017-01",
      "has_results": false,
      "last_update_posted_date": "2016-12-28",
      "last_synced_at": "2026-09-24T13:59:14.170Z",
      "location_count": 1,
      "location_summary": "Summit, New Jersey",
      "locations": [
        {
          "city": "Summit",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02392273"
    },
    {
      "nct_id": "NCT04688775",
      "title": "Eptinezumab in Participants With Episodic Cluster Headache",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Cluster Headache, Episodic"
      ],
      "interventions": [
        {
          "name": "Eptinezumab",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "H. Lundbeck A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 231,
      "start_date": "2020-12-23",
      "completion_date": "2023-10-05",
      "has_results": true,
      "last_update_posted_date": "2024-08-09",
      "last_synced_at": "2026-09-24T13:59:14.170Z",
      "location_count": 24,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Palo Alto, California + 19 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04688775"
    },
    {
      "nct_id": "NCT02797951",
      "title": "A Study of LY2951742 (Galcanezumab) in Participants With Cluster Headache",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Episodic Cluster Headache",
        "Chronic Cluster Headache"
      ],
      "interventions": [
        {
          "name": "Galcanezumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 165,
      "start_date": "2016-07-13",
      "completion_date": "2021-01-21",
      "has_results": true,
      "last_update_posted_date": "2022-02-10",
      "last_synced_at": "2026-09-24T13:59:14.170Z",
      "location_count": 11,
      "location_summary": "Phoenix, Arizona • Palo Alto, California • Santa Monica, California + 8 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        },
        {
          "city": "Stamford",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02797951"
    },
    {
      "nct_id": "NCT04845451",
      "title": "The Presence and Role of Zygomatic-temporal Neuroma Triggering Cluster Headache",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cluster Headache",
        "Craniofacial Pain Syndrome"
      ],
      "interventions": [
        {
          "name": "Minimal surgical exploration for a neuroma",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "FARO T. OWIESY, M.D",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "20 Years to 70 Years"
      },
      "enrollment_count": 5,
      "start_date": "2021-06-09",
      "completion_date": "2022-10-30",
      "has_results": false,
      "last_update_posted_date": "2022-11-30",
      "last_synced_at": "2026-09-24T13:59:14.170Z",
      "location_count": 1,
      "location_summary": "Corona, California",
      "locations": [
        {
          "city": "Corona",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04845451"
    },
    {
      "nct_id": "NCT00069082",
      "title": "Intranasal Civamide for Episodic Cluster Headache",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Episodic Cluster Headache"
      ],
      "interventions": [
        {
          "name": "Civamide (Zucapsaicin)",
          "type": "DRUG"
        },
        {
          "name": "Sodium Chloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Winston Laboratories",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2003-08",
      "completion_date": "2004-01",
      "has_results": false,
      "last_update_posted_date": "2011-06-10",
      "last_synced_at": "2026-09-24T13:59:14.170Z",
      "location_count": 6,
      "location_summary": "San Francisco, California • Santa Monica, California • Denver, Colorado + 3 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00069082"
    }
  ]
}