{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+group+-+observational&page=7",
    "query": {
      "intervention": "Control group - observational",
      "page": 7
    },
    "page_size": 10
  },
  "pagination": {
    "page": 7,
    "page_size": 10,
    "total_count": 537,
    "total_pages": 54,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+group+-+observational&page=8&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+group+-+observational&page=6&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-27T17:17:21.908Z",
  "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": "NCT01893710",
      "title": "International (Pediatric) Peritoneal Biobank",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Kidney Failure, Chronic",
        "Peritoneal Dialysis Complication",
        "Transplantation",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "biopsy sampling",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Heidelberg University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "1 Day to 90 Years"
      },
      "enrollment_count": 500,
      "start_date": "2011-02-01",
      "completion_date": "2028-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-30",
      "last_synced_at": "2026-10-27T17:17:21.908Z",
      "location_count": 3,
      "location_summary": "Birmingham, Alabama • Kansas City, Missouri • Narberth, Pennsylvania",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "Narberth",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01893710"
    },
    {
      "nct_id": "NCT06388109",
      "title": "Positive Peers Intervention Clinical Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Positive Peers mobile app",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "MetroHealth Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "34 Years",
        "sex": "ALL",
        "summary": "13 Years to 34 Years"
      },
      "enrollment_count": 250,
      "start_date": "2024-06-03",
      "completion_date": "2027-11",
      "has_results": false,
      "last_update_posted_date": "2026-08-18",
      "last_synced_at": "2026-10-27T17:17:21.908Z",
      "location_count": 7,
      "location_summary": "Van Nuys, California • Newark, New Jersey • Cincinnati, Ohio + 4 more",
      "locations": [
        {
          "city": "Van Nuys",
          "state": "California"
        },
        {
          "city": "Newark",
          "state": "New Jersey"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06388109"
    },
    {
      "nct_id": "NCT04606498",
      "title": "Blood Purification With Seraph 100 Microbind Affinity Blood Filter for Treatment of Severe COVID19 Observational Study",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Henry M. Jackson Foundation for the Advancement of Military Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2020-12-18",
      "completion_date": "2023-01-01",
      "has_results": false,
      "last_update_posted_date": "2022-11-01",
      "last_synced_at": "2026-10-27T17:17:21.908Z",
      "location_count": 14,
      "location_summary": "Los Angeles, California • Aurora, Colorado • Orlando, Florida + 7 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Brunswick",
          "state": "Georgia"
        },
        {
          "city": "Fort Gordon",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04606498"
    },
    {
      "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": "2026-10-27T17:17:21.908Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07649616"
    },
    {
      "nct_id": "NCT04253899",
      "title": "The Management of Perforated Acute Appendicitis in Adult and Pediatric Populations",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Perforated Appendicitis"
      ],
      "interventions": [
        {
          "name": "Appendectomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Observation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Marshall University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 100,
      "start_date": "2020-02-20",
      "completion_date": "2023-11",
      "has_results": false,
      "last_update_posted_date": "2023-04-04",
      "last_synced_at": "2026-10-27T17:17:21.908Z",
      "location_count": 1,
      "location_summary": "Huntington, West Virginia",
      "locations": [
        {
          "city": "Huntington",
          "state": "West Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04253899"
    },
    {
      "nct_id": "NCT06351579",
      "title": "Data Collection Post Radical Prostatectomy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Stress Urinary Incontinence",
        "Radical Prostatectomy",
        "BPH"
      ],
      "interventions": [
        {
          "name": "Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Levee Medical, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "70 Years",
        "sex": "MALE",
        "summary": "45 Years to 70 Years · Male only"
      },
      "enrollment_count": 30,
      "start_date": "2023-03-30",
      "completion_date": "2025-07-30",
      "has_results": false,
      "last_update_posted_date": "2025-09-29",
      "last_synced_at": "2026-10-27T17:17:21.908Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06351579"
    },
    {
      "nct_id": "NCT01816841",
      "title": "Direct Visual Fluorescence in Finding Oral Cancer in High-Risk Patients and Patients Undergoing Routine Dental Care",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lip and Oral Cavity Squamous Cell Carcinoma",
        "Oral Cavity Verrucous Carcinoma",
        "Stage 0 Lip and Oral Cavity Cancer",
        "Tongue Cancer"
      ],
      "interventions": [
        {
          "name": "fluorescence imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "examination",
          "type": "PROCEDURE"
        },
        {
          "name": "Comparison of surgical margins by COE vs. DVFE",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 68,
      "start_date": "2008-11-11",
      "completion_date": "2019-12-28",
      "has_results": false,
      "last_update_posted_date": "2020-01-30",
      "last_synced_at": "2026-10-27T17:17:21.908Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01816841"
    },
    {
      "nct_id": "NCT01373424",
      "title": "The Dystonia Coalition Natural History and Biospecimen Repository for Isolated Dystonias",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dystonia"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3265,
      "start_date": "2011-01",
      "completion_date": "2020-09-30",
      "has_results": false,
      "last_update_posted_date": "2020-10-26",
      "last_synced_at": "2026-10-27T17:17:21.908Z",
      "location_count": 34,
      "location_summary": "Birmingham, Alabama • Scottsdale, Arizona • Fountain Valley, California + 26 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01373424"
    },
    {
      "nct_id": "NCT03793413",
      "title": "The Impact of Lingual Frenotomy on Bottle Feeding Mechanics",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ankyloglossia",
        "Feeding, Bottle",
        "Feeding Disorder of Infancy and Childhood"
      ],
      "interventions": [
        {
          "name": "Lingual frenotomy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "The Oregon Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Weeks",
        "maximum_age": "12 Weeks",
        "sex": "ALL",
        "summary": "3 Weeks to 12 Weeks"
      },
      "enrollment_count": 47,
      "start_date": "2019-08-01",
      "completion_date": "2021-07-27",
      "has_results": false,
      "last_update_posted_date": "2021-09-14",
      "last_synced_at": "2026-10-27T17:17:21.908Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03793413"
    },
    {
      "nct_id": "NCT07544602",
      "title": "Music Therapy for Comatose Brain Injured Patients",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Traumatic Brain Injury"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mercy Health Ohio",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 35,
      "start_date": "2026-05-19",
      "completion_date": "2028-04-07",
      "has_results": false,
      "last_update_posted_date": "2026-10-09",
      "last_synced_at": "2026-10-27T17:17:21.908Z",
      "location_count": 2,
      "location_summary": "Youngstown, Ohio",
      "locations": [
        {
          "city": "Youngstown",
          "state": "Ohio"
        },
        {
          "city": "Youngstown",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07544602"
    }
  ]
}