{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Clinical+Observation&page=19",
    "query": {
      "intervention": "Clinical Observation",
      "page": 19
    },
    "page_size": 10
  },
  "pagination": {
    "page": 19,
    "page_size": 10,
    "total_count": 2281,
    "total_pages": 229,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Clinical+Observation&page=20&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Clinical+Observation&page=18&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-18T08:37:13.382Z",
  "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": "NCT05766332",
      "title": "Evaluating Clinical Evaluation Tools for Predicting Risk of Complications After Hematopoietic Stem Cell Transplant",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hematopoietic and Lymphoid System Neoplasm",
        "Malignant Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Clinical Evaluation",
          "type": "OTHER"
        },
        {
          "name": "Electronic Health Record Review",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "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": 137,
      "start_date": "2021-08-02",
      "completion_date": "2023-11-17",
      "has_results": false,
      "last_update_posted_date": "2025-01-10",
      "last_synced_at": "2026-10-18T08:37:13.382Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05766332"
    },
    {
      "nct_id": "NCT01498484",
      "title": "Therapeutic Effects of Epstein-Barr Virus Immune T-Lymphocytes Derived From a Normal HLA-Compatible Or Partially-Matched Third-Party Donor in the Treatment of EBV Lymphoproliferative Disorders and EBV-Associated Malignancies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "EBV-induced Lymphomas",
        "EBV-associated Malignancies",
        "Transplant Patients With EBV Viremia at High Risk for Developing a Recurrent EBV Lymphoma"
      ],
      "interventions": [
        {
          "name": "EBV-specific T cells (EBV-CTLs)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Atara Biotherapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 87,
      "start_date": "2011-12",
      "completion_date": "2019-07",
      "has_results": true,
      "last_update_posted_date": "2022-10-21",
      "last_synced_at": "2026-10-18T08:37:13.382Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01498484"
    },
    {
      "nct_id": "NCT04171440",
      "title": "Observation of Perioperative Outcomes of Robotic Pancreaticoduodenectomy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pancreaticoduodenectomy"
      ],
      "interventions": [
        {
          "name": "robotic pancreaticoduodenectomy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 91,
      "start_date": "2020-02-18",
      "completion_date": "2025-10-01",
      "has_results": false,
      "last_update_posted_date": "2025-10-03",
      "last_synced_at": "2026-10-18T08:37:13.382Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • Charlotte, North Carolina",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04171440"
    },
    {
      "nct_id": "NCT06129864",
      "title": "A Global Study of Volrustomig (MEDI5752) for Participants With Unresected Locally Advanced Head and Neck Squamous Cell Carcinoma Following Definitive Concurrent Chemoradiotherapy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Locally Advanced Head and Neck Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "volrustomig",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "130 Years",
        "sex": "ALL",
        "summary": "18 Years to 130 Years"
      },
      "enrollment_count": 1145,
      "start_date": "2023-12-14",
      "completion_date": "2031-02-28",
      "has_results": false,
      "last_update_posted_date": "2026-09-30",
      "last_synced_at": "2026-10-18T08:37:13.382Z",
      "location_count": 69,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Prescott Valley, Arizona + 61 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Prescott Valley",
          "state": "Arizona"
        },
        {
          "city": "Springdale",
          "state": "Arkansas"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06129864"
    },
    {
      "nct_id": "NCT05640999",
      "title": "Adjuvant Therapy in POLE-Mutated and p53-Wildtype/NSMP Early Stage Endometrial Cancer RAINBO BLUE & TAPER",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Endometrial Cancer"
      ],
      "interventions": [
        {
          "name": "Vaginal brachytherapy",
          "type": "RADIATION"
        },
        {
          "name": "Adjuvant radiotherapy (EBRT +/- brachytherapy)",
          "type": "RADIATION"
        },
        {
          "name": "Observation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "Canadian Cancer Trials 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": 393,
      "start_date": "2022-12-19",
      "completion_date": "2029-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-10-14",
      "last_synced_at": "2026-10-18T08:37:13.382Z",
      "location_count": 77,
      "location_summary": "Anchorage, Alaska • Tucson, Arizona • Los Angeles, California + 61 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05640999"
    },
    {
      "nct_id": "NCT05629533",
      "title": "The Nanowear Wearable System SimpleSense Validation Trial for Cardiac Output",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Right Heart Catheterization"
      ],
      "interventions": [
        {
          "name": "SimpleSense",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Nanowear Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 13,
      "start_date": "2023-03-08",
      "completion_date": "2025-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-09",
      "last_synced_at": "2026-10-18T08:37:13.382Z",
      "location_count": 1,
      "location_summary": "Valhalla, New York",
      "locations": [
        {
          "city": "Valhalla",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05629533"
    },
    {
      "nct_id": "NCT02891538",
      "title": "Chemopreventive Effects of Epigallocatechin Gallate (EGCG) in Colorectal Cancer (CRC) Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Colon Cancer"
      ],
      "interventions": [
        {
          "name": "Epigallocatechin gallate (EGCG)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The University of Texas Health Science Center at San Antonio",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 51,
      "start_date": "2017-01-31",
      "completion_date": "2025-09-09",
      "has_results": false,
      "last_update_posted_date": "2026-06-30",
      "last_synced_at": "2026-10-18T08:37:13.382Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02891538"
    },
    {
      "nct_id": "NCT05881252",
      "title": "Perinatal Outcomes Following Change in Clinical Criteria in for Treatment of Maternal Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Maternal Hypertension"
      ],
      "interventions": [
        {
          "name": "Clinical blood pressure threshold of SBP >= 160 mmHg for acute treatment of hypertension",
          "type": "PROCEDURE"
        },
        {
          "name": "Clinical blood pressure threshold of SBP >= 180 mmHg for acute treatment of hypertension",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 1003,
      "start_date": "2023-05-11",
      "completion_date": "2024-04-04",
      "has_results": false,
      "last_update_posted_date": "2025-07-28",
      "last_synced_at": "2026-10-18T08:37:13.382Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05881252"
    },
    {
      "nct_id": "NCT05976763",
      "title": "Testing Continuous Versus Intermittent Treatment With the Study Drug Zanubrutinib for Older Patients With Previously Untreated Mantle Cell Lymphoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Mantle Cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "Zanubrutinib",
          "type": "DRUG"
        },
        {
          "name": "Rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Patient Observation",
          "type": "OTHER"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Fludeoxyglucose F-18",
          "type": "OTHER"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Esophagogastroduodenoscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Colonoscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 421,
      "start_date": "2023-10-20",
      "completion_date": "2038-08-31",
      "has_results": false,
      "last_update_posted_date": "2026-10-02",
      "last_synced_at": "2026-10-18T08:37:13.382Z",
      "location_count": 238,
      "location_summary": "Little Rock, Arkansas • Beverly Hills, California • Duarte, California + 185 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05976763"
    },
    {
      "nct_id": "NCT06971835",
      "title": "INDUCE: A Prospective 2-Year Spine Registry",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Subjects Treated With NMP as Part of Their Spine Surgery",
        "Degenerative Disc Disease (DDD)"
      ],
      "interventions": [
        {
          "name": "NMP",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Red Rock Regeneration Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2026-02-17",
      "completion_date": "2029-01",
      "has_results": false,
      "last_update_posted_date": "2026-04-22",
      "last_synced_at": "2026-10-18T08:37:13.382Z",
      "location_count": 2,
      "location_summary": "Baton Rouge, Louisiana • Shreveport, Louisiana",
      "locations": [
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        },
        {
          "city": "Shreveport",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06971835"
    }
  ]
}