{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+but+only+observational",
    "query": {
      "intervention": "No intervention but only observational"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 19,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+but+only+observational&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-26T11:23:38.167Z",
  "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": "NCT05012878",
      "title": "Cardiac Rehab and Cerebral Blood Flow Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Diseases"
      ],
      "interventions": [
        {
          "name": "Cardiac rehabilitation - high intensity interval training (HIIT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cardiac rehabilitation - moderate intensity continuous training (MICT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cardiac rehabilitation - control",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cardiac rehabilitation - observational",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 45,
      "start_date": "2021-09-02",
      "completion_date": "2025-04-23",
      "has_results": false,
      "last_update_posted_date": "2025-05-29",
      "last_synced_at": "2026-09-26T11:23:38.167Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05012878"
    },
    {
      "nct_id": "NCT03657654",
      "title": "Voice Outcomes Following Thyroidectomy",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Thyroid Cancer",
        "Thyroid Nodule"
      ],
      "interventions": [
        {
          "name": "No intervention: observational only",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 45,
      "start_date": "2019-04-23",
      "completion_date": "2023-12-15",
      "has_results": false,
      "last_update_posted_date": "2022-05-09",
      "last_synced_at": "2026-09-26T11:23:38.167Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03657654"
    },
    {
      "nct_id": "NCT02437773",
      "title": "Neurocircuit Mechanisms of OCD Across the Lifespan",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obsessive-Compulsive Disorder"
      ],
      "interventions": [
        {
          "name": "Cognitive Behavioral Therapy - Adolescents",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Stress Management Therapy - Adolescents",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Optional CBT - Adolescents",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognitive Behavioral Therapy - Adults",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Stress Management Therapy - Adults",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Optional CBT - Adults",
          "type": "BEHAVIORAL"
        },
        {
          "name": "fMRI only - Healthy Control Adults",
          "type": "OTHER"
        },
        {
          "name": "fMRI only - Healthy Control Adolescents",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "13 Years to 45 Years"
      },
      "enrollment_count": 206,
      "start_date": "2015-03-09",
      "completion_date": "2020-10-21",
      "has_results": false,
      "last_update_posted_date": "2020-11-06",
      "last_synced_at": "2026-09-26T11:23:38.167Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02437773"
    },
    {
      "nct_id": "NCT01669720",
      "title": "Adjuvant Aflibercept for Metastatic Colorectal Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Aflibercept",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brown 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": "2012-12",
      "completion_date": "2016-01",
      "has_results": true,
      "last_update_posted_date": "2020-02-17",
      "last_synced_at": "2026-09-26T11:23:38.167Z",
      "location_count": 2,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        },
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01669720"
    },
    {
      "nct_id": "NCT00622050",
      "title": "The Relationship of TV Viewing to Energy Balance in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Overweight"
      ],
      "interventions": [
        {
          "name": "No TV viewing reduction",
          "type": "BEHAVIORAL"
        },
        {
          "name": "TV viewing reduction",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Vermont",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 44,
      "start_date": "2008-01",
      "completion_date": "2008-08",
      "has_results": false,
      "last_update_posted_date": "2008-10-16",
      "last_synced_at": "2026-09-26T11:23:38.167Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00622050"
    },
    {
      "nct_id": "NCT03445988",
      "title": "Cognitive Behavioral Therapy and Chronic Pain Self-Management Within the Context of Opioid Reduction: The EMPOWER Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "Cognitive Behavioral Therapy",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Chronic Pain Self Management Program",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Taper Only",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 1462,
      "start_date": "2018-07-24",
      "completion_date": "2023-11-06",
      "has_results": true,
      "last_update_posted_date": "2026-09-24",
      "last_synced_at": "2026-09-26T11:23:38.167Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03445988"
    },
    {
      "nct_id": "NCT00072280",
      "title": "Surgery and/or Chemotherapy in Treating Children With Infantile, Congenital, or Childhood Fibrosarcoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Sarcoma"
      ],
      "interventions": [
        {
          "name": "dactinomycin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "etoposide",
          "type": "DRUG"
        },
        {
          "name": "ifosfamide",
          "type": "DRUG"
        },
        {
          "name": "vincristine sulfate",
          "type": "DRUG"
        },
        {
          "name": "Conventional Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "MESNA (mercaptoethane sulfonate)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Filgrastim",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "2 Years",
        "sex": "ALL",
        "summary": "Up to 2 Years"
      },
      "enrollment_count": 7,
      "start_date": "2004-11",
      "completion_date": "2008-03",
      "has_results": true,
      "last_update_posted_date": "2014-09-30",
      "last_synced_at": "2026-09-26T11:23:38.167Z",
      "location_count": 64,
      "location_summary": "Phoenix, Arizona • Little Rock, Arkansas • Downey, California + 57 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00072280"
    },
    {
      "nct_id": "NCT07596030",
      "title": "Self-applied taVNS for CIPN",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chemotherapy Induced Peripheral Neuropathy"
      ],
      "interventions": [
        {
          "name": "Transcutaneous Auricular Vagus Nerve Stimulation (taVNS)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 36,
      "start_date": "2026-06-02",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2026-06-26",
      "last_synced_at": "2026-09-26T11:23:38.167Z",
      "location_count": 1,
      "location_summary": "Coral Gables, Florida",
      "locations": [
        {
          "city": "Coral Gables",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07596030"
    },
    {
      "nct_id": "NCT04606498",
      "title": "Blood Purification With Seraph 100 Microbind Affinity Blood Filter for Treatment of Severe COVID19 Observational Study",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Henry M. Jackson Foundation for the Advancement of Military Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2020-12-18",
      "completion_date": "2023-01-01",
      "has_results": false,
      "last_update_posted_date": "2022-11-01",
      "last_synced_at": "2026-09-26T11:23:38.167Z",
      "location_count": 14,
      "location_summary": "Los Angeles, California • Aurora, Colorado • Orlando, Florida + 7 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Brunswick",
          "state": "Georgia"
        },
        {
          "city": "Fort Gordon",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04606498"
    },
    {
      "nct_id": "NCT02041689",
      "title": "A Qualitative Case Study of the Experiences of Children With Cancer as They Learn About Their Diagnosis and Treatment",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sarcoma"
      ],
      "interventions": [
        {
          "name": "Interview",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Observations",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Guided Activities",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "7 Years to 11 Years"
      },
      "enrollment_count": 4,
      "start_date": "2014-01",
      "completion_date": "2015-10",
      "has_results": false,
      "last_update_posted_date": "2016-01-20",
      "last_synced_at": "2026-09-26T11:23:38.167Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02041689"
    }
  ]
}