{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+cohort",
    "query": {
      "intervention": "Observational cohort"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 746,
    "total_pages": 75,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+cohort&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T21:18:53.364Z",
  "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": "NCT05625529",
      "title": "ExoLuminate Study for Early Detection of Pancreatic Cancer",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pancreas Cancer",
        "Exosomes",
        "Extracellular Vesicles",
        "Pancreatic Neoplasms"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Biological Dynamics",
      "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": "2022-12-19",
      "completion_date": "2028-01-01",
      "has_results": false,
      "last_update_posted_date": "2025-07-28",
      "last_synced_at": "2026-09-04T21:18:53.364Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05625529"
    },
    {
      "nct_id": "NCT05616793",
      "title": "Safety and Tolerability Subretinal OPGx-001 for LCA5-Associated Inherited Retinal Degeneration (LCA5-IRD) and Non-interventional Arm With Untreated Patients",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "LCA5"
      ],
      "interventions": [
        {
          "name": "AAV8.hLCA5",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Opus Genetics, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "4 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2023-06-15",
      "completion_date": "2028-06-15",
      "has_results": false,
      "last_update_posted_date": "2026-02-19",
      "last_synced_at": "2026-09-04T21:18:53.364Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania • Dallas, Texas",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05616793"
    },
    {
      "nct_id": "NCT03134755",
      "title": "Stress and Treatment Response in Puerto Rican Children With Asthma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Asthma in Children"
      ],
      "interventions": [
        {
          "name": "Inhaled corticosteroid (mometasone)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "8 Years to 20 Years"
      },
      "enrollment_count": 249,
      "start_date": "2018-05-15",
      "completion_date": "2022-05-18",
      "has_results": false,
      "last_update_posted_date": "2025-02-11",
      "last_synced_at": "2026-09-04T21:18:53.364Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03134755"
    },
    {
      "nct_id": "NCT05461378",
      "title": "PREP (Pre-Exposure Prophylaxis) of COVID-19",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Immuno-Deficiency",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Evusheld",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ghady Haidar",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 138,
      "start_date": "2022-07-26",
      "completion_date": "2024-01-29",
      "has_results": false,
      "last_update_posted_date": "2024-07-15",
      "last_synced_at": "2026-09-04T21:18:53.364Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05461378"
    },
    {
      "nct_id": "NCT02355717",
      "title": "Role of Cardiometabolic Risk Factors in Childhood Bone Development",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity",
        "Cardiovascular Disease",
        "Type 2 Diabetes",
        "Osteoporosis"
      ],
      "interventions": [
        {
          "name": "Observational Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Augusta University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "15 Years",
        "sex": "ALL",
        "summary": "9 Years to 15 Years"
      },
      "enrollment_count": 400,
      "start_date": "2014-12",
      "completion_date": "2021-12-30",
      "has_results": false,
      "last_update_posted_date": "2019-11-20",
      "last_synced_at": "2026-09-04T21:18:53.364Z",
      "location_count": 1,
      "location_summary": "Augusta, Georgia",
      "locations": [
        {
          "city": "Augusta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02355717"
    },
    {
      "nct_id": "NCT06008938",
      "title": "An Observational Cohort Study to Characterize the Effectiveness and Safety of HEMGENIX® in Patients With Hemophilia B",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hemophilia B"
      ],
      "interventions": [
        {
          "name": "HEMGENIX",
          "type": "GENETIC"
        },
        {
          "name": "Factor IX (FIX)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "BIOLOGICAL"
      ],
      "sponsor": "CSL Behring",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 500,
      "start_date": "2023-06-15",
      "completion_date": "2043-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-19",
      "last_synced_at": "2026-09-04T21:18:53.364Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06008938"
    },
    {
      "nct_id": "NCT07775976",
      "title": "Cor360: Clinician-Facing Broad-Spectrum Cardiac Phenotyping and Risk Assessment Using COR® Wearable ECG to Inform Outcomes-Oriented Care Pathways",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiovascular Diseases",
        "Cardiovascular Diseases Risk",
        "Cardiac Conduction System Disease",
        "Bundle/Fascicular Abnormalities",
        "His-Purkinje Disease",
        "Arrhythmias, Cardiac",
        "Rhythm Phenotypes",
        "Myocardial Ischemia",
        "Syncope",
        "Syncope Recurrent",
        "Syncope and Collapse",
        "Seizure Disorder",
        "Sleep Apnea Syndrome, Obstructive",
        "Decision Support Systems, Clinical",
        "Heart Failure - NYHA II - IV",
        "Heart Failure (for Example, Fluid Overload)",
        "HRV",
        "Cardiopulmonary",
        "Sudden Cardiac Arrest",
        "Cardiac Arrest (CA)",
        "Ventricular Arrhythmias and Cardiac Arrest",
        "Ventricular Fibrillation",
        "QT Dispersion",
        "Atrial Cardiomyopathy"
      ],
      "interventions": [
        {
          "name": "COR Wearable ECG Monitoring",
          "type": "DEVICE"
        },
        {
          "name": "Cor360 Clinician-Facing Decision-Aid Reporting",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Peerbridge Health, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2026-08-20",
      "completion_date": "2030-06-17",
      "has_results": false,
      "last_update_posted_date": "2026-08-21",
      "last_synced_at": "2026-09-04T21:18:53.364Z",
      "location_count": 2,
      "location_summary": "Pasadena, California • Nashville, Tennessee",
      "locations": [
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07775976"
    },
    {
      "nct_id": "NCT05375617",
      "title": "European Prospective Investigation Into Childhood Cancer",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Acute Lymphoblastic Leukemia",
        "Brain Tumor"
      ],
      "interventions": [
        {
          "name": "Observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "3 Years to 21 Years"
      },
      "enrollment_count": 1400,
      "start_date": "2023-07-07",
      "completion_date": "2031-03-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-02",
      "last_synced_at": "2026-09-04T21:18:53.364Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05375617"
    },
    {
      "nct_id": "NCT04537676",
      "title": "Patient Empowerment Study",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Diabetic Foot",
        "Quality of Life",
        "Mental Health Wellness 1",
        "Ulcer Foot",
        "Diabetes Complications"
      ],
      "interventions": [
        {
          "name": "No intervention, this is an observational study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Podimetrics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2020-09-15",
      "completion_date": "2022-03-01",
      "has_results": false,
      "last_update_posted_date": "2020-09-03",
      "last_synced_at": "2026-09-04T21:18:53.364Z",
      "location_count": 1,
      "location_summary": "Somerville, Massachusetts",
      "locations": [
        {
          "city": "Somerville",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04537676"
    },
    {
      "nct_id": "NCT04084288",
      "title": "Acupuncture for Low-Dose Opioid for TKA Replacement",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knee Osteoarthritis",
        "Pain, Postoperative",
        "Acupuncture"
      ],
      "interventions": [
        {
          "name": "Acupuncture",
          "type": "OTHER"
        },
        {
          "name": "Peripheral Nerve Stimulator",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DEVICE"
      ],
      "sponsor": "Hospital for Special Surgery, New York",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 41,
      "start_date": "2019-08-21",
      "completion_date": "2020-10-02",
      "has_results": true,
      "last_update_posted_date": "2024-12-27",
      "last_synced_at": "2026-09-04T21:18:53.364Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04084288"
    }
  ]
}