{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+data+collection&page=3",
    "query": {
      "intervention": "Observational data collection",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 331,
    "total_pages": 34,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+data+collection&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+data+collection&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-06T15:10:13.485Z",
  "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": "NCT04385251",
      "title": "International SARS-CoV-2 (COVID-19) Infection Observational Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID",
        "COVID19",
        "SARS-CoV 2",
        "Dyspnea"
      ],
      "interventions": [
        {
          "name": "Data Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11973,
      "start_date": "2020-06-18",
      "completion_date": "2022-01-31",
      "has_results": false,
      "last_update_posted_date": "2022-08-16",
      "last_synced_at": "2026-11-06T15:10:13.485Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04385251"
    },
    {
      "nct_id": "NCT06927219",
      "title": "Research Accelerated by You Lupus Registry",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Systemic Lupus Erythematosus (SLE)",
        "Lupus Nephritis (LN)",
        "Cutaneous Lupus Erythematosus (CLE)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Lupus Foundation of America",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 10000,
      "start_date": "2020-10-01",
      "completion_date": "2050-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-23",
      "last_synced_at": "2026-11-06T15:10:13.485Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06927219"
    },
    {
      "nct_id": "NCT04162574",
      "title": "Binge-Eating Genetics Initiative (BEGIN) - Dynamical Systems Approach",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Binge-Eating Disorder",
        "Bulimia Nervosa"
      ],
      "interventions": [
        {
          "name": "Recovery Record",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 1166,
      "start_date": "2017-08-24",
      "completion_date": "2021-08-31",
      "has_results": false,
      "last_update_posted_date": "2021-09-29",
      "last_synced_at": "2026-11-06T15:10:13.485Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, Virginia",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04162574"
    },
    {
      "nct_id": "NCT03968328",
      "title": "Time From Onset of Fever to Administration of Antibiotics in Neutropenic Fever Patients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Febrile Neutropenia",
        "Fever"
      ],
      "interventions": [
        {
          "name": "Interview",
          "type": "OTHER"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 315,
      "start_date": "2015-06-19",
      "completion_date": "2023-01-17",
      "has_results": false,
      "last_update_posted_date": "2023-07-21",
      "last_synced_at": "2026-11-06T15:10:13.485Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03968328"
    },
    {
      "nct_id": "NCT00488930",
      "title": "Characteristics of Dendritic Cells Before and After Gastric Banding",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Morbid Obesity",
        "Hyperglycemia",
        "Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "Observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 7,
      "start_date": "2007-06",
      "completion_date": "2011-01",
      "has_results": false,
      "last_update_posted_date": "2016-10-26",
      "last_synced_at": "2026-11-06T15:10:13.485Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00488930"
    },
    {
      "nct_id": "NCT04638595",
      "title": "Pediatric Normative Movement Analysis Data Collection",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pediatric ALL"
      ],
      "interventions": [
        {
          "name": "Observation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "MultiCare Health System Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "3 Years to 18 Years"
      },
      "enrollment_count": 50,
      "start_date": "2020-11-16",
      "completion_date": "2021-05-05",
      "has_results": false,
      "last_update_posted_date": "2022-08-05",
      "last_synced_at": "2026-11-06T15:10:13.485Z",
      "location_count": 1,
      "location_summary": "Puyallup, Washington",
      "locations": [
        {
          "city": "Puyallup",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04638595"
    },
    {
      "nct_id": "NCT05118802",
      "title": "Measuring the Impact of MANNA s Medically Tailored Meal Program in Patients With a Non-terminal Cancer Diagnosis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hematopoietic and Lymphoid Cell Neoplasm",
        "Malignant Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Interview",
          "type": "OTHER"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 46,
      "start_date": "2021-08-11",
      "completion_date": "2023-03-03",
      "has_results": false,
      "last_update_posted_date": "2025-05-22",
      "last_synced_at": "2026-11-06T15:10:13.485Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05118802"
    },
    {
      "nct_id": "NCT07789808",
      "title": "Activating Voice Journaling for Mental Health With Voice Biomarkers",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Depression / Major Depressive Disorder",
        "Anxiety"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Kintsugi Mindful Wellness, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 50000,
      "start_date": "2019-10-01",
      "completion_date": "2021-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-11-06T15:10:13.485Z",
      "location_count": 1,
      "location_summary": "Berkeley, California",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07789808"
    },
    {
      "nct_id": "NCT03870633",
      "title": "Assessment of Financial Difficulty in Participants with Chronic Lymphocytic Leukemia and Multiple Myeloma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Lymphocytic Leukemia",
        "Plasma Cell Myeloma"
      ],
      "interventions": [
        {
          "name": "Medical Chart Review",
          "type": "OTHER"
        },
        {
          "name": "Interview",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 521,
      "start_date": "2019-05-14",
      "completion_date": "2023-05-01",
      "has_results": false,
      "last_update_posted_date": "2025-01-17",
      "last_synced_at": "2026-11-06T15:10:13.485Z",
      "location_count": 116,
      "location_summary": "Anchorage, Alaska • Aurora, Colorado • Boulder, Colorado + 98 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03870633"
    },
    {
      "nct_id": "NCT01549535",
      "title": "Polyp Detection With The Peerscope System™",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Colon Polyps and Adenomas",
        "Colon Cancer"
      ],
      "interventions": [
        {
          "name": "Colonoscopy done with:PeerMedical System and Olympus/Pentax/Fuji colonoscopy system",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "PeerMedical Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 197,
      "start_date": "2012-02",
      "completion_date": "2013-07",
      "has_results": false,
      "last_update_posted_date": "2016-11-25",
      "last_synced_at": "2026-11-06T15:10:13.485Z",
      "location_count": 2,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01549535"
    }
  ]
}