{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention%2C+observational+study&page=2",
    "query": {
      "intervention": "No intervention, observational study",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 645,
    "total_pages": 65,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention%2C+observational+study&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention%2C+observational+study&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-02T08:21:23.304Z",
  "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": "NCT07449715",
      "title": "Respiration From Pleth Validation",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Respiratory Rate Monitoring"
      ],
      "interventions": [
        {
          "name": "Physiological Monitoring with SpO₂ Sensors and Capnography",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Philips Clinical & Medical Affairs Global",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "4 Years and older"
      },
      "enrollment_count": 113,
      "start_date": "2026-02-06",
      "completion_date": "2026-05-25",
      "has_results": false,
      "last_update_posted_date": "2026-03-04",
      "last_synced_at": "2026-10-02T08:21:23.304Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07449715"
    },
    {
      "nct_id": "NCT01825538",
      "title": "Assessment of Pulmonary Specialty Physicians' Approach to Advanced Care Planning in Patients With Chronic Pulmonary Diseases",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease",
        "Pulmonary Fibrosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Jennifer McCallister MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "88 Years",
        "sex": "ALL",
        "summary": "18 Years to 88 Years"
      },
      "enrollment_count": 93,
      "start_date": "2013-02",
      "completion_date": "2014-06",
      "has_results": false,
      "last_update_posted_date": "2014-07-25",
      "last_synced_at": "2026-10-02T08:21:23.304Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01825538"
    },
    {
      "nct_id": "NCT01909791",
      "title": "Treatment for CI-DME in Eyes With Very Good VA Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Diabetic Macular Edema"
      ],
      "interventions": [
        {
          "name": "Prompt Laser",
          "type": "PROCEDURE"
        },
        {
          "name": "Prompt aflibercept",
          "type": "DRUG"
        },
        {
          "name": "Deferred laser",
          "type": "PROCEDURE"
        },
        {
          "name": "Deferred aflibercept",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Jaeb Center for Health Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 702,
      "start_date": "2013-10",
      "completion_date": "2018-09-11",
      "has_results": true,
      "last_update_posted_date": "2020-07-31",
      "last_synced_at": "2026-10-02T08:21:23.304Z",
      "location_count": 100,
      "location_summary": "Phoenix, Arizona • Tucson, Arizona • Little Rock, Arkansas + 84 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Campbell",
          "state": "California"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01909791"
    },
    {
      "nct_id": "NCT04329910",
      "title": "Obesity Alters Lung Mechanics in Robotic Surgery",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity",
        "Surgery",
        "Anesthesia"
      ],
      "interventions": [
        {
          "name": "no intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Vermont Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 99,
      "start_date": "2017-11-22",
      "completion_date": "2019-07-12",
      "has_results": false,
      "last_update_posted_date": "2020-04-01",
      "last_synced_at": "2026-10-02T08:21:23.304Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04329910"
    },
    {
      "nct_id": "NCT04219540",
      "title": "Long-acting Buprenorphine vs. Naltrexone Opioid Treatments in CJS-involved Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Opioid-use Disorder"
      ],
      "interventions": [
        {
          "name": "XR-B (SUBLOCADETM)",
          "type": "DRUG"
        },
        {
          "name": "XR-NTX",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 675,
      "start_date": "2021-01-07",
      "completion_date": "2025-02-28",
      "has_results": false,
      "last_update_posted_date": "2025-05-14",
      "last_synced_at": "2026-10-02T08:21:23.304Z",
      "location_count": 6,
      "location_summary": "New Haven, Connecticut • Baltimore, Maryland • Hanover, New Hampshire + 3 more",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Hanover",
          "state": "New Hampshire"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04219540"
    },
    {
      "nct_id": "NCT06494046",
      "title": "Defining Musical Toxicity and Its Effect on Patient Well-being",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Carcinoma",
        "Esophageal Carcinoma",
        "Head and Neck Carcinoma",
        "Lung Carcinoma",
        "Malignant Brain Neoplasm",
        "Malignant Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Non-Interventional Study",
          "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": 0,
      "start_date": "2024-08-15",
      "completion_date": "2025-05-19",
      "has_results": false,
      "last_update_posted_date": "2025-06-04",
      "last_synced_at": "2026-10-02T08:21:23.304Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06494046"
    },
    {
      "nct_id": "NCT07075731",
      "title": "Cervical and Endometrial Cancer Screening in Patients Seeking Gender-Affirming Hysterectomy",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer Screening",
        "Transgender",
        "Gender Diverse Populations"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2025-06-30",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-16",
      "last_synced_at": "2026-10-02T08:21:23.304Z",
      "location_count": 1,
      "location_summary": "Minneota, Minnesota",
      "locations": [
        {
          "city": "Minneota",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07075731"
    },
    {
      "nct_id": "NCT00602953",
      "title": "Role of Pancreatic Triglyceride Content in Beta-cell Function",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity",
        "Type 2 Diabetes"
      ],
      "interventions": [
        {
          "name": "No intervention planned.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "21 Years to 99 Years"
      },
      "enrollment_count": 101,
      "start_date": "2007-09",
      "completion_date": "2012-08",
      "has_results": true,
      "last_update_posted_date": "2017-12-26",
      "last_synced_at": "2026-10-02T08:21:23.304Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00602953"
    },
    {
      "nct_id": "NCT06636045",
      "title": "Blood Flow Restriction Following ACLR w/Quad Autograft",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Autografts",
        "Blood Flow Restriction Therapy",
        "Rehabilitation Outcome",
        "Quadriceps Muscle Strength",
        "Anterior Cruciate Ligament Reconstruction"
      ],
      "interventions": [
        {
          "name": "Not applicable- observational study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "14 Years to 40 Years"
      },
      "enrollment_count": 40,
      "start_date": "2024-09-05",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2025-04-06",
      "last_synced_at": "2026-10-02T08:21:23.304Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06636045"
    },
    {
      "nct_id": "NCT03525353",
      "title": "Comparison Of Radiation Exposure To Patients During Endoscopic Retrograde Cholangiopancreatography (ERCP) Performed By Endoscopists Trained In Judicious Use Of Fluoroscopy With Those Without Formal Training",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "Endoscopic retrograde cholangiopancreatography - No Intervention have been used other than standard of care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 1000,
      "start_date": "2015-11",
      "completion_date": "2025-12",
      "has_results": false,
      "last_update_posted_date": "2021-01-12",
      "last_synced_at": "2026-10-02T08:21:23.304Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03525353"
    }
  ]
}