{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+-+observational+study+only&page=2",
    "query": {
      "intervention": "No intervention - observational study only",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 133,
    "total_pages": 14,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+-+observational+study+only&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+-+observational+study+only&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T17:13:39.775Z",
  "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": "NCT07227753",
      "title": "The Association Between Gut Microbiota Diversity and Postpartum Depression",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Depression During Pregnancy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2025-11-17",
      "completion_date": "2026-04-08",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-09-30T17:13:39.775Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07227753"
    },
    {
      "nct_id": "NCT02832505",
      "title": "Applications of MRI in Kidney Disease",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Kidney Disease",
        "End-stage Kidney Disease"
      ],
      "interventions": [
        {
          "name": "No intervention but only observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2025-10-30",
      "completion_date": "2028-08-30",
      "has_results": false,
      "last_update_posted_date": "2025-03-25",
      "last_synced_at": "2026-09-30T17:13:39.775Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02832505"
    },
    {
      "nct_id": "NCT01241357",
      "title": "High-Tc Susceptometer to Monitor Transfusional Iron Overload",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Transfusional Iron Overload",
        "Thalassemia Major",
        "Sickle Cell Disease",
        "Myelodysplastic Syndromes",
        "Aplastic Anemia"
      ],
      "interventions": [
        {
          "name": "Hepatic biomagnetic susceptibility measurement",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "5 Years to 80 Years"
      },
      "enrollment_count": 99,
      "start_date": "2011-03",
      "completion_date": "2016-05",
      "has_results": false,
      "last_update_posted_date": "2016-09-21",
      "last_synced_at": "2026-09-30T17:13:39.775Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01241357"
    },
    {
      "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": "2026-09-30T17:13:39.775Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02041689"
    },
    {
      "nct_id": "NCT07775872",
      "title": "Prospective Natural History Study of POLG Disease",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "PolG, Primary Mitochondrial Myopathy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "The POLG Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 300,
      "start_date": "2026-06-17",
      "completion_date": "2031-06-17",
      "has_results": false,
      "last_update_posted_date": "2026-09-15",
      "last_synced_at": "2026-09-30T17:13:39.775Z",
      "location_count": 7,
      "location_summary": "San Diego, California • Aurora, Colorado • New York, New York + 4 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Akron",
          "state": "Ohio"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07775872"
    },
    {
      "nct_id": "NCT03907410",
      "title": "The Tailored Adherence Incentives for Childhood Asthma Medications (TAICAM) Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Medication Adherence",
        "Asthma in Children"
      ],
      "interventions": [
        {
          "name": "Nominal Financial Incentives",
          "type": "OTHER"
        },
        {
          "name": "Daily Adherence Reminders/Adherence Performance Feedback",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "5 Years to 12 Years"
      },
      "enrollment_count": 125,
      "start_date": "2019-09-01",
      "completion_date": "2022-07-17",
      "has_results": true,
      "last_update_posted_date": "2024-03-18",
      "last_synced_at": "2026-09-30T17:13:39.775Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03907410"
    },
    {
      "nct_id": "NCT06351579",
      "title": "Data Collection Post Radical Prostatectomy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Stress Urinary Incontinence",
        "Radical Prostatectomy",
        "BPH"
      ],
      "interventions": [
        {
          "name": "Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Levee Medical, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "70 Years",
        "sex": "MALE",
        "summary": "45 Years to 70 Years · Male only"
      },
      "enrollment_count": 30,
      "start_date": "2023-03-30",
      "completion_date": "2025-07-30",
      "has_results": false,
      "last_update_posted_date": "2025-09-29",
      "last_synced_at": "2026-09-30T17:13:39.775Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06351579"
    },
    {
      "nct_id": "NCT05440851",
      "title": "Platform of Randomized Adaptive Clinical Trials in Critical Illness",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Respiratory Insufficiency",
        "Extracorporeal Membrane Oxygenation Complication",
        "Mechanical Ventilation Pressure High"
      ],
      "interventions": [
        {
          "name": "Ultra-Protective Ventilation Facilitated by Extracorporeal Support",
          "type": "OTHER"
        },
        {
          "name": "Lung-Protective Ventilation (LPV)",
          "type": "OTHER"
        },
        {
          "name": "Driving Pressure-Limited Ventilation (DPL)",
          "type": "OTHER"
        },
        {
          "name": "Lung- and Diaphragm-Protective Ventilation and Sedation (LDPVS)",
          "type": "OTHER"
        },
        {
          "name": "Early Cohort corticosteroid dose",
          "type": "DRUG"
        },
        {
          "name": "Extended Cohort corticosteroid dose",
          "type": "DRUG"
        },
        {
          "name": "Usual care without routine corticosteroids",
          "type": "DRUG"
        },
        {
          "name": "Usual care without extending corticosteroids",
          "type": "DRUG"
        },
        {
          "name": "Usual care with fludrocortisone",
          "type": "DRUG"
        },
        {
          "name": "Usual care without fludrocortisone",
          "type": "DRUG"
        },
        {
          "name": "Drug 4 mL:",
          "type": "DRUG"
        },
        {
          "name": "Drug 40 mg:",
          "type": "DRUG"
        },
        {
          "name": "PEEP-20",
          "type": "OTHER"
        },
        {
          "name": "PEEP-AOP",
          "type": "OTHER"
        },
        {
          "name": "PEEP-10",
          "type": "OTHER"
        },
        {
          "name": "VV ECMO-facilitated strategy of earlier awakening, extubation and rehabilitation",
          "type": "OTHER"
        },
        {
          "name": "Electrical impedance tomography (EIT)",
          "type": "OTHER"
        },
        {
          "name": "no treatment / intervention arm is involved.",
          "type": "OTHER"
        },
        {
          "name": "Usual care",
          "type": "OTHER"
        },
        {
          "name": "Early Routine IMT",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "University Health Network, Toronto",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 6250,
      "start_date": "2023-04-30",
      "completion_date": "2027-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-07",
      "last_synced_at": "2026-09-30T17:13:39.775Z",
      "location_count": 26,
      "location_summary": "Tucson, Arizona • Los Angeles, California • San Diego, California + 19 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05440851"
    },
    {
      "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": "2026-09-30T17:13:39.775Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05012878"
    },
    {
      "nct_id": "NCT04353921",
      "title": "PSIL201 Long-term Follow-up Study: Psilocybin or Niacin / Major Depressive Disorder",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "No intervention will be administered as part of this study.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Usona Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 26,
      "start_date": "2020-06-30",
      "completion_date": "2022-10-18",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-09-30T17:13:39.775Z",
      "location_count": 1,
      "location_summary": "Lauderhill, Florida",
      "locations": [
        {
          "city": "Lauderhill",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04353921"
    }
  ]
}