{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+Control&page=25",
    "query": {
      "intervention": "Observational Control",
      "page": 25
    },
    "page_size": 10
  },
  "pagination": {
    "page": 25,
    "page_size": 10,
    "total_count": 644,
    "total_pages": 65,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+Control&page=26&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+Control&page=24&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-25T16:26:56.678Z",
  "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": "NCT04606095",
      "title": "Explosive Synchronization of Brain Network Activity in Chronic Pain",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fibromyalgia",
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "EEG",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Neuroimaging EEG/fMRI (Aim 1)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "HD-tDCS treatments",
          "type": "DEVICE"
        },
        {
          "name": "Sham HD-tDCS treatments",
          "type": "DEVICE"
        },
        {
          "name": "Neuroimaging EEG/fMRI (Aim 3)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "DEVICE"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "74 Years",
        "sex": "ALL",
        "summary": "19 Years to 74 Years"
      },
      "enrollment_count": 150,
      "start_date": "2020-11-13",
      "completion_date": "2026-12-20",
      "has_results": false,
      "last_update_posted_date": "2026-09-30",
      "last_synced_at": "2026-10-25T16:26:56.678Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04606095"
    },
    {
      "nct_id": "NCT05137665",
      "title": "Target ALS Biomarker Study; Longitudinal Biofluids, Clinical Measures, and At Home Measures",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Amyotrophic Lateral Sclerosis",
        "Movement Disorders",
        "Degenerative Disorder",
        "Motor Neuron Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Target ALS Foundation, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2021-06-01",
      "completion_date": "2031-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-11-21",
      "last_synced_at": "2026-10-25T16:26:56.678Z",
      "location_count": 10,
      "location_summary": "Phoenix, Arizona • San Diego, California • Georgetown, District of Columbia + 7 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Georgetown",
          "state": "District of Columbia"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05137665"
    },
    {
      "nct_id": "NCT01809132",
      "title": "Efficacy Study of Anakinra, Pentoxifylline, and Zinc Compared to Methylprednisolone in Severe Acute Alcoholic Hepatitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Acute Alcoholic Hepatitis"
      ],
      "interventions": [
        {
          "name": "Anakinra",
          "type": "DRUG"
        },
        {
          "name": "Pentoxifylline",
          "type": "DRUG"
        },
        {
          "name": "Zinc Sulfate",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisolone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mack Mitchell",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "21 Years to 70 Years"
      },
      "enrollment_count": 104,
      "start_date": "2013-09",
      "completion_date": "2018-10",
      "has_results": true,
      "last_update_posted_date": "2021-11-01",
      "last_synced_at": "2026-10-25T16:26:56.678Z",
      "location_count": 4,
      "location_summary": "Louisville, Kentucky • Worcester, Massachusetts • Cleveland, Ohio + 1 more",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Worcester",
          "state": "Massachusetts"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01809132"
    },
    {
      "nct_id": "NCT07649616",
      "title": "Increasing Law Enforcement Application of Automated External Defibrillators (AED)s for Cardiac Arrest",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Arrest, Out-Of-Hospital",
        "Defibrillators"
      ],
      "interventions": [
        {
          "name": "AED training adjunct",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Wayne State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2026-07-14",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-10-25T16:26:56.678Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07649616"
    },
    {
      "nct_id": "NCT03137394",
      "title": "Development of a Model of Shoulder Pain Following Spinal Cord Injury",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Spinal Cord Injury"
      ],
      "interventions": [
        {
          "name": "Observation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Drexel University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 69,
      "start_date": "2017-10-01",
      "completion_date": "2021-01-31",
      "has_results": false,
      "last_update_posted_date": "2022-03-31",
      "last_synced_at": "2026-10-25T16:26:56.678Z",
      "location_count": 2,
      "location_summary": "Gwynn Oak, Maryland • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Gwynn Oak",
          "state": "Maryland"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03137394"
    },
    {
      "nct_id": "NCT02181257",
      "title": "Extracorporeal Photopheresis for Medicare Recipients of Lung Allografts",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Bronchiolitis Obliterans Syndrome (BOS)"
      ],
      "interventions": [
        {
          "name": "Extracorporeal Photopheresis (ECP)",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "No intervention in the SOC / Retrospective Chart review.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT",
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 280,
      "start_date": "2015-01",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-06",
      "last_synced_at": "2026-10-25T16:26:56.678Z",
      "location_count": 22,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • La Jolla, California + 18 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Gainsville",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02181257"
    },
    {
      "nct_id": "NCT03933202",
      "title": "A Study of Suboptimally Controlled Participants Previously Taking Oral or Infusion DMDs for RMS (MASTER-2)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Cladribine Tablets",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "EMD Serono Research & Development Institute, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 291,
      "start_date": "2019-07-22",
      "completion_date": "2024-11-11",
      "has_results": true,
      "last_update_posted_date": "2026-01-02",
      "last_synced_at": "2026-10-25T16:26:56.678Z",
      "location_count": 66,
      "location_summary": "Cullman, Alabama • Mobile, Alabama • Little Rock, Arkansas + 58 more",
      "locations": [
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "West Hollywood",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03933202"
    },
    {
      "nct_id": "NCT00853112",
      "title": "A Research Study To Assess The Effectiveness And Safety Of Different Doses Of Oral PF-00489791 In The Treatment Of Adult Patients With Pulmonary Arterial Hypertension",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypertension, Pulmonary"
      ],
      "interventions": [
        {
          "name": "PF-00489791",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        },
        {
          "name": "sildenafil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 48,
      "start_date": "2009-04",
      "completion_date": "2010-07",
      "has_results": true,
      "last_update_posted_date": "2017-10-24",
      "last_synced_at": "2026-10-25T16:26:56.678Z",
      "location_count": 8,
      "location_summary": "Phoenix, Arizona • Gainesville, Florida • Omaha, Nebraska + 2 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00853112"
    },
    {
      "nct_id": "NCT03017781",
      "title": "A Study of the Relationship of Psychosocial Function With Mood Symptoms in Offspring of Parents With Bipolar Disorder",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Bipolar Disorder"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Janssen Research & Development, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "15 Years to 25 Years"
      },
      "enrollment_count": 224,
      "start_date": "2016-10-25",
      "completion_date": "2021-04-30",
      "has_results": false,
      "last_update_posted_date": "2025-04-27",
      "last_synced_at": "2026-10-25T16:26:56.678Z",
      "location_count": 20,
      "location_summary": "Culver City, California • Lemon Grove, California • Los Angeles, California + 17 more",
      "locations": [
        {
          "city": "Culver City",
          "state": "California"
        },
        {
          "city": "Lemon Grove",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Panorama City",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03017781"
    },
    {
      "nct_id": "NCT01891630",
      "title": "Observational Assessment of Baseline Asthma Control in African-American Children",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Asthma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "12 Years to 17 Years"
      },
      "enrollment_count": 25,
      "start_date": "2013-07",
      "completion_date": "2015-01",
      "has_results": false,
      "last_update_posted_date": "2015-09-04",
      "last_synced_at": "2026-10-25T16:26:56.678Z",
      "location_count": 1,
      "location_summary": "Raleigh, North Carolina",
      "locations": [
        {
          "city": "Raleigh",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01891630"
    }
  ]
}