{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+procedures",
    "query": {
      "intervention": "Observational procedures"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 1933,
    "total_pages": 194,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+procedures&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-12T05:59:55.857Z",
  "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": "NCT01957085",
      "title": "Undiagnosed Hepatitis C Infection in an Urban Hospital",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hepatitis C"
      ],
      "interventions": [
        {
          "name": "observation only",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Temple University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 366,
      "start_date": "2014-06",
      "completion_date": "2016-01",
      "has_results": true,
      "last_update_posted_date": "2020-04-24",
      "last_synced_at": "2026-09-12T05:59:55.857Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01957085"
    },
    {
      "nct_id": "NCT06881108",
      "title": "Addressing Financial Hardship in Adolescent and Young Adult Cancer Survivors",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hematopoietic Neoplasm",
        "Malignant Solid Neoplasm",
        "Lymphatic System Neoplasm"
      ],
      "interventions": [
        {
          "name": "CHAT Core Functions",
          "type": "OTHER"
        },
        {
          "name": "LIFT Core Functions",
          "type": "OTHER"
        },
        {
          "name": "Member-Checking Process",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2024-11-04",
      "completion_date": "2025-09-05",
      "has_results": false,
      "last_update_posted_date": "2026-03-03",
      "last_synced_at": "2026-09-12T05:59:55.857Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06881108"
    },
    {
      "nct_id": "NCT03784976",
      "title": "Iyengar Yoga Therapy for Dysmenorrhea and Endometriosis",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Secondary Dysmenorrhea",
        "Dysmenorrhea",
        "Dysmenorrhea Secondary",
        "Polycystic Ovary Syndrome",
        "Endometriosis",
        "Fibroid",
        "Menstrual Pain",
        "Menstrual Disorder",
        "Menstrual Discomfort"
      ],
      "interventions": [
        {
          "name": "Iyengar Yoga Therapy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "12 Years to 65 Years · Female only"
      },
      "enrollment_count": 90,
      "start_date": "2018-07-03",
      "completion_date": "2021-07-02",
      "has_results": false,
      "last_update_posted_date": "2018-12-24",
      "last_synced_at": "2026-09-12T05:59:55.857Z",
      "location_count": 1,
      "location_summary": "Urbana, Illinois",
      "locations": [
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03784976"
    },
    {
      "nct_id": "NCT02989610",
      "title": "Clinical Evaluation of the Infinity Deep Brain Stimulation System",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "Omnidirectional stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Directional stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Abbott Medical Devices",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 234,
      "start_date": "2017-01-31",
      "completion_date": "2022-04-19",
      "has_results": true,
      "last_update_posted_date": "2024-08-22",
      "last_synced_at": "2026-09-12T05:59:55.857Z",
      "location_count": 21,
      "location_summary": "Sacramento, California • Aurora, Colorado • Gainesville, Florida + 16 more",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02989610"
    },
    {
      "nct_id": "NCT02857374",
      "title": "Intravital Microscopy in Identifying Tumor Vessels in Patients With Stage IB-IIIC Melanoma Undergoing Sentinel Lymph Node Biopsy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stage IB Skin Melanoma",
        "Stage IIA Skin Melanoma",
        "Stage IIB Skin Melanoma",
        "Stage IIC Skin Melanoma",
        "Stage IIIA Skin Melanoma",
        "Stage IIIB Skin Melanoma",
        "Stage IIIC Skin Melanoma"
      ],
      "interventions": [
        {
          "name": "Diagnostic Microscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Fluorescein Sodium Injection",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Sentinel Lymph Node Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Roswell Park Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2016-11-03",
      "completion_date": "2022-06-13",
      "has_results": false,
      "last_update_posted_date": "2022-08-01",
      "last_synced_at": "2026-09-12T05:59:55.857Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02857374"
    },
    {
      "nct_id": "NCT00606190",
      "title": "Prospective Randomized Study of Brain Protection During Aortic Arch Replacement",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aneurysm of Aortic Arch"
      ],
      "interventions": [
        {
          "name": "Retrograde brain perfusion",
          "type": "PROCEDURE"
        },
        {
          "name": "Antegrade brain perfusion",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "74 Years",
        "sex": "ALL",
        "summary": "21 Years to 74 Years"
      },
      "enrollment_count": 123,
      "start_date": "2003-06",
      "completion_date": "2010-04",
      "has_results": false,
      "last_update_posted_date": "2017-02-17",
      "last_synced_at": "2026-09-12T05:59:55.857Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00606190"
    },
    {
      "nct_id": "NCT07576985",
      "title": "Evaluating the Efficacy of Intravenous Acetaminophen (IV Tylenol) in Reducing Pain and Agitation in Pediatric Patients Undergoing Elective Tonsillectomy and/or Adenoidectomy",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Tonsillectomy",
        "Adenoidectomy"
      ],
      "interventions": [
        {
          "name": "No Intervention: Observational Cohort",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "MetroHealth Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "8 Years",
        "sex": "ALL",
        "summary": "Up to 8 Years"
      },
      "enrollment_count": 20,
      "start_date": "2025-04-21",
      "completion_date": "2026-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-08",
      "last_synced_at": "2026-09-12T05:59:55.857Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07576985"
    },
    {
      "nct_id": "NCT00002968",
      "title": "Edrecolomab in Treating Patients With Stage II Colon Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Mucinous Adenocarcinoma of the Colon",
        "Signet Ring Adenocarcinoma of the Colon",
        "Stage IIA Colon Cancer",
        "Stage IIB Colon Cancer",
        "Stage IIC Colon Cancer"
      ],
      "interventions": [
        {
          "name": "edrecolomab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2100,
      "start_date": "1997-05",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2026-06-01",
      "last_synced_at": "2026-09-12T05:59:55.857Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002968"
    },
    {
      "nct_id": "NCT02877849",
      "title": "Brain Functional Connectivity in Alcohol Use Disorder",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Alcohol Use Disorder"
      ],
      "interventions": [
        {
          "name": "MRI: Brain Imaging data collection",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 82,
      "start_date": "2017-02-09",
      "completion_date": "2019-10-31",
      "has_results": false,
      "last_update_posted_date": "2019-11-06",
      "last_synced_at": "2026-09-12T05:59:55.857Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02877849"
    },
    {
      "nct_id": "NCT06206486",
      "title": "The Gut Microbiome and Serum Metabolites as a Biological Mechanism Underlying Pain in Kidney Transplantation",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Kidney Transplant Symptoms",
        "Gut Microbiome"
      ],
      "interventions": [
        {
          "name": "no intervention, observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Illinois at Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 133,
      "start_date": "2023-10-09",
      "completion_date": "2028-03",
      "has_results": false,
      "last_update_posted_date": "2026-08-17",
      "last_synced_at": "2026-09-12T05:59:55.857Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06206486"
    }
  ]
}