{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Clinical+Observation&page=27",
    "query": {
      "intervention": "Clinical Observation",
      "page": 27
    },
    "page_size": 10
  },
  "pagination": {
    "page": 27,
    "page_size": 10,
    "total_count": 2281,
    "total_pages": 229,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Clinical+Observation&page=28&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Clinical+Observation&page=26&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-19T02:30:20.658Z",
  "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": "NCT04580667",
      "title": "Determination of Assay Cut-Off for the RadTox Test in Prostate Cancer Patients to Predict GI Radiation Toxicity",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Collection of plasma samples",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "DiaCarta, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "85 Years",
        "sex": "MALE",
        "summary": "30 Years to 85 Years · Male only"
      },
      "enrollment_count": 0,
      "start_date": "2020-10-01",
      "completion_date": "2023-09-06",
      "has_results": false,
      "last_update_posted_date": "2025-08-28",
      "last_synced_at": "2026-10-19T02:30:20.658Z",
      "location_count": 5,
      "location_summary": "Gainesville, Florida • Jacksonville, Florida • New York, New York + 2 more",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Port Jefferson Station",
          "state": "New York"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04580667"
    },
    {
      "nct_id": "NCT02374671",
      "title": "A Clinical Trial of The VisAbility Micro Insert System for Presbyopic Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "VisAbility Micro Insert",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "VisDura, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "45 Years to 60 Years"
      },
      "enrollment_count": 365,
      "start_date": "2014-11-15",
      "completion_date": "2018-04-13",
      "has_results": true,
      "last_update_posted_date": "2020-01-06",
      "last_synced_at": "2026-10-19T02:30:20.658Z",
      "location_count": 14,
      "location_summary": "Orange, California • San Diego, California • Honolulu, Hawaii + 10 more",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Honolulu",
          "state": "Hawaii"
        },
        {
          "city": "Des Plaines",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02374671"
    },
    {
      "nct_id": "NCT03268759",
      "title": "Development of Reward Processing in Prenatally Exposed Adolescents and Young Adults",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pre-natal Cocaine Exposure",
        "Risk-Taking"
      ],
      "interventions": [
        {
          "name": "fMRI",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "18 Years to 20 Years"
      },
      "enrollment_count": 78,
      "start_date": "2017-09-15",
      "completion_date": "2020-09-14",
      "has_results": false,
      "last_update_posted_date": "2021-05-04",
      "last_synced_at": "2026-10-19T02:30:20.658Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03268759"
    },
    {
      "nct_id": "NCT00719303",
      "title": "Diet and Physical Activity Change or Usual Care in Improving Progression-Free Survival in Patients With Previously Treated Stage II, III, or IV Ovarian, Fallopian Tube, or Primary Peritoneal Cancer",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Fallopian Tube Clear Cell Adenocarcinoma",
        "Fallopian Tube Endometrioid Adenocarcinoma",
        "Fallopian Tube Mucinous Adenocarcinoma",
        "Fallopian Tube Serous Adenocarcinoma",
        "Fallopian Tube Transitional Cell Carcinoma",
        "Malignant Ovarian Brenner Tumor",
        "Ovarian Clear Cell Adenocarcinoma",
        "Ovarian Endometrioid Adenocarcinoma",
        "Ovarian Mucinous Adenocarcinoma",
        "Ovarian Seromucinous Carcinoma",
        "Ovarian Serous Adenocarcinoma",
        "Ovarian Transitional Cell Carcinoma",
        "Primary Peritoneal Serous Adenocarcinoma",
        "Stage IIA Fallopian Tube Cancer AJCC v6 and v7",
        "Stage IIA Ovarian Cancer AJCC V6 and v7",
        "Stage IIB Fallopian Tube Cancer AJCC v6 and v7",
        "Stage IIB Ovarian Cancer AJCC v6 and v7",
        "Stage IIC Fallopian Tube Cancer AJCC v6 and v7",
        "Stage IIC Ovarian Cancer AJCC v6 and v7",
        "Stage IIIA Fallopian Tube Cancer AJCC v7",
        "Stage IIIA Ovarian Cancer AJCC v6 and v7",
        "Stage IIIA Primary Peritoneal Cancer AJCC v7",
        "Stage IIIB Fallopian Tube Cancer AJCC v7",
        "Stage IIIB Ovarian Cancer AJCC v6 and v7",
        "Stage IIIB Primary Peritoneal Cancer AJCC v7",
        "Stage IIIC Fallopian Tube Cancer AJCC v7",
        "Stage IIIC Ovarian Cancer AJCC v6 and v7",
        "Stage IIIC Primary Peritoneal Cancer AJCC v7",
        "Stage IV Fallopian Tube Cancer AJCC v6 and v7",
        "Stage IV Ovarian Cancer AJCC v6 and v7",
        "Stage IV Primary Peritoneal Cancer AJCC v7",
        "Undifferentiated Fallopian Tube Carcinoma",
        "Undifferentiated Ovarian Carcinoma"
      ],
      "interventions": [
        {
          "name": "Behavioral Dietary Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Compliance Monitoring",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Counseling",
          "type": "OTHER"
        },
        {
          "name": "Educational Intervention",
          "type": "OTHER"
        },
        {
          "name": "Exercise Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Gynecologic Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 1070,
      "start_date": "2012-06-18",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2018-02-19",
      "last_synced_at": "2026-10-19T02:30:20.658Z",
      "location_count": 687,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Anchorage, Alaska + 452 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00719303"
    },
    {
      "nct_id": "NCT02855983",
      "title": "Perforating Fat Injections for Plantar Fasciosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Plantar Fascia"
      ],
      "interventions": [
        {
          "name": "Fat Grafting",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2016-08",
      "completion_date": "2019-12",
      "has_results": false,
      "last_update_posted_date": "2020-01-10",
      "last_synced_at": "2026-10-19T02:30:20.658Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02855983"
    },
    {
      "nct_id": "NCT04856046",
      "title": "Detection of Plasma DNA Methylation in Peripheral Blood From Patients With Resectable Liver Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Resectable Hepatocellular Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Electronic Health Record Review",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2021-11-06",
      "completion_date": "2029-12-04",
      "has_results": false,
      "last_update_posted_date": "2026-04-24",
      "last_synced_at": "2026-10-19T02:30:20.658Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04856046"
    },
    {
      "nct_id": "NCT05561946",
      "title": "An Observational Study of Skin Reaction in Infants Using the Owlet Sock OSS 3.0",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Skin Injury"
      ],
      "interventions": [
        {
          "name": "Owlet OSS 3.0",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Owlet Baby Care, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "44 Weeks",
        "maximum_age": "18 Months",
        "sex": "ALL",
        "summary": "44 Weeks to 18 Months"
      },
      "enrollment_count": 43,
      "start_date": "2021-12-21",
      "completion_date": "2022-08-24",
      "has_results": false,
      "last_update_posted_date": "2022-09-30",
      "last_synced_at": "2026-10-19T02:30:20.658Z",
      "location_count": 2,
      "location_summary": "Apopka, Florida • Shreveport, Louisiana",
      "locations": [
        {
          "city": "Apopka",
          "state": "Florida"
        },
        {
          "city": "Shreveport",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05561946"
    },
    {
      "nct_id": "NCT01265927",
      "title": "A Study Inhibiting Telomerase to Reverse Trastuzumab Resistance in HER2+ Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Breast Neoplasms"
      ],
      "interventions": [
        {
          "name": "GRN163L in combination with trastuzumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2011-01",
      "completion_date": "2015-10",
      "has_results": false,
      "last_update_posted_date": "2015-10-27",
      "last_synced_at": "2026-10-19T02:30:20.658Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01265927"
    },
    {
      "nct_id": "NCT07022327",
      "title": "Ivacaftor Impact in an Adolescent Without a Cystic Fibrosis-Associated CFTR (Cystic Fibrosis Transmembrane Conductance Regulator) Mutation for Chronic Pancreatitis: Single-Patient Study Tracking Flare Frequency and Health Data Compared to Historical Records.",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Pancreatitis"
      ],
      "interventions": [
        {
          "name": "Ivacaftor 150 MG (milligrams)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mission: Cure",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1,
      "start_date": "2025-05-06",
      "completion_date": "2026-08",
      "has_results": false,
      "last_update_posted_date": "2025-06-15",
      "last_synced_at": "2026-10-19T02:30:20.658Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07022327"
    },
    {
      "nct_id": "NCT00060346",
      "title": "Rituximab and Combination Chemotherapy in Treating Patients With Newly Diagnosed Waldenstrom's Macroglobulinemia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Vincristine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Eastern Cooperative Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2004-10-05",
      "completion_date": "2012-08",
      "has_results": true,
      "last_update_posted_date": "2023-06-29",
      "last_synced_at": "2026-10-19T02:30:20.658Z",
      "location_count": 153,
      "location_summary": "Little Rock, Arkansas • Lewes, Delaware • Newark, Delaware + 96 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Lewes",
          "state": "Delaware"
        },
        {
          "city": "Newark",
          "state": "Delaware"
        },
        {
          "city": "Aurora",
          "state": "Illinois"
        },
        {
          "city": "Joliet",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00060346"
    }
  ]
}