{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+%28observational%29&page=14",
    "query": {
      "intervention": "No intervention (observational)",
      "page": 14
    },
    "page_size": 10
  },
  "pagination": {
    "page": 14,
    "page_size": 10,
    "total_count": 1065,
    "total_pages": 107,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+%28observational%29&page=15&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+%28observational%29&page=13&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-28T06:37:13.054Z",
  "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": "NCT04604418",
      "title": "Outcomes and Health Care Resource Utilization in Pediatric Congenital Heart Disease Patients Undergoing Non-Cardiac Procedures",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Congenital Heart Disease in Children"
      ],
      "interventions": [
        {
          "name": "No intervention. It is observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 10000,
      "start_date": "2020-10-01",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-10-28T06:37:13.054Z",
      "location_count": 9,
      "location_summary": "Los Angeles, California • Washington D.C., District of Columbia • Atlanta, Georgia + 6 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04604418"
    },
    {
      "nct_id": "NCT02706340",
      "title": "Expulsion of Immediate Postplacental Copper Intrauterine Devices at Six Months: A Prospective Cohort Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Postpartum",
        "Intrauterine Devices, Copper"
      ],
      "interventions": [
        {
          "name": "No intervention - observational study only",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 309,
      "start_date": "2015-04",
      "completion_date": "2018-07",
      "has_results": false,
      "last_update_posted_date": "2018-11-15",
      "last_synced_at": "2026-10-28T06:37:13.054Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02706340"
    },
    {
      "nct_id": "NCT01317940",
      "title": "Nutrition and Body Composition in Acute Lymphoblastic Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Precursor Cell Lymphoblastic Leukemia-Lymphoma",
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "Vitamin D and Calcium Citrate",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Children's Hospital Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "10 Years to 29 Years"
      },
      "enrollment_count": 76,
      "start_date": "2011-03",
      "completion_date": "2016-01",
      "has_results": true,
      "last_update_posted_date": "2020-07-08",
      "last_synced_at": "2026-10-28T06:37:13.054Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01317940"
    },
    {
      "nct_id": "NCT05179824",
      "title": "Tempus Priority Study: A Pan-tumor Observational Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer",
        "Prostate Cancer",
        "Bladder Cancer",
        "Lung Cancer",
        "Brain Cancer",
        "Pancreatic Cancer",
        "Ovarian Cancer",
        "Fallopian Tube Cancer",
        "Peritoneal Cancer",
        "Cancer of Liver",
        "Cancer of Colon",
        "Cancer of Head and Neck",
        "Cancer of Stomach",
        "Cancer of Gastrointestinal Tract",
        "Cancer of Rectum",
        "Cancer of Esophagus",
        "Cancer of Skin",
        "Cancer of Cervix",
        "Cancer of Kidney",
        "Cancer of Larynx",
        "Cancer of Endometrium",
        "Cancer of the Bile Duct",
        "Cancer of Vulva",
        "Cancer of Bone and Connective Tissue",
        "Leukemia",
        "Lymphoma",
        "Spinal Cord Cancer"
      ],
      "interventions": [
        {
          "name": "Observation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Tempus AI",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1000,
      "start_date": "2020-10-19",
      "completion_date": "2030-10-19",
      "has_results": false,
      "last_update_posted_date": "2025-05-06",
      "last_synced_at": "2026-10-28T06:37:13.054Z",
      "location_count": 2,
      "location_summary": "Dallas, Texas • Houston, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05179824"
    },
    {
      "nct_id": "NCT05423860",
      "title": "Phase I Human Analytics (HALO) Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiovascular Diseases",
        "Cancer",
        "Dementia",
        "Traumatic Brain Injury"
      ],
      "interventions": [
        {
          "name": "no interventions will be performed (observational)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "HALO Diagnostics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "90 Years",
        "sex": "MALE",
        "summary": "45 Years to 90 Years · Male only"
      },
      "enrollment_count": 2000,
      "start_date": "2022-03-16",
      "completion_date": "2037-03",
      "has_results": false,
      "last_update_posted_date": "2022-10-14",
      "last_synced_at": "2026-10-28T06:37:13.054Z",
      "location_count": 1,
      "location_summary": "Indian Wells, California",
      "locations": [
        {
          "city": "Indian Wells",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05423860"
    },
    {
      "nct_id": "NCT06438640",
      "title": "Evaluating a Strategy to Improve Pre-Anesthesia Care Discussions (My Anesthesia Choice-Hip Fracture)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hip Fractures",
        "Femoral Neck Fractures",
        "Intertrochanteric Fractures",
        "Subtrochanteric Fractures"
      ],
      "interventions": [
        {
          "name": "My Anesthesia Choice-HF Model",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 1881,
      "start_date": "2024-08-15",
      "completion_date": "2028-06-15",
      "has_results": false,
      "last_update_posted_date": "2026-03-12",
      "last_synced_at": "2026-10-28T06:37:13.054Z",
      "location_count": 6,
      "location_summary": "Gainesville, Florida • Detroit, Michigan • Lebanon, New Hampshire + 3 more",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06438640"
    },
    {
      "nct_id": "NCT00841399",
      "title": "Safety and Efficacy Study of HER2/Neu (E75) Vaccine in Node-Positive Breast Cancer Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "E75 + GM-CSF vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "COL George Peoples, MD, FACS",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2001-07",
      "completion_date": "2013-03",
      "has_results": false,
      "last_update_posted_date": "2020-03-31",
      "last_synced_at": "2026-10-28T06:37:13.054Z",
      "location_count": 2,
      "location_summary": "Bethesda, Maryland • Windber, Pennsylvania",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Windber",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00841399"
    },
    {
      "nct_id": "NCT03755128",
      "title": "A Study to Characterize the Clinical Course of Pregnant Women and Children at High Risk for Early Onset Severe Hemolytic Disease of the Fetus and Newborn",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Early Onset Severe Hemolytic Disease of the Fetus and Newborn (EOS-HDFN)",
        "Erythroblastosis, Fetal"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Janssen Research & Development, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 17,
      "start_date": "2019-01-16",
      "completion_date": "2023-09-22",
      "has_results": false,
      "last_update_posted_date": "2025-09-12",
      "last_synced_at": "2026-10-28T06:37:13.054Z",
      "location_count": 5,
      "location_summary": "New York, New York • Cincinnati, Ohio • Portland, Oregon + 2 more",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03755128"
    },
    {
      "nct_id": "NCT01881867",
      "title": "CYT107 After Vaccine Treatment (Provenge®) in Patients With Metastatic Castration-Resistant Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Castration Levels of Testosterone",
        "Castration-Resistant Prostate Carcinoma",
        "Metastatic Prostate Carcinoma",
        "Stage IV Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Glycosylated Recombinant Human Interleukin-7",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 54,
      "start_date": "2013-09-10",
      "completion_date": "2018-01-02",
      "has_results": true,
      "last_update_posted_date": "2019-07-09",
      "last_synced_at": "2026-10-28T06:37:13.054Z",
      "location_count": 16,
      "location_summary": "La Jolla, California • Los Angeles, California • San Francisco, California + 10 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01881867"
    },
    {
      "nct_id": "NCT03190200",
      "title": "MRI Findings of Epiphyseal Growth Plate in Healthy Children",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "OCD - Osteochondritis Dissecans"
      ],
      "interventions": [
        {
          "name": "MRI",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "10 Years",
        "sex": "ALL",
        "summary": "6 Years to 10 Years"
      },
      "enrollment_count": 7,
      "start_date": "2018-01-01",
      "completion_date": "2023-07-01",
      "has_results": false,
      "last_update_posted_date": "2023-08-03",
      "last_synced_at": "2026-10-28T06:37:13.054Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03190200"
    }
  ]
}