{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=none-+observational+study&page=2",
    "query": {
      "intervention": "none- observational study",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=none-+observational+study&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-10T13:50:14.777Z",
  "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": "NCT03808038",
      "title": "Symptoms of Lower Urinary Tract Dysfunction Protocol 2/Recall Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lower Urinary Tract Symptoms"
      ],
      "interventions": [
        {
          "name": "None- Observational Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Arbor Research Collaborative for Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 515,
      "start_date": "2017-05-26",
      "completion_date": "2018-05-31",
      "has_results": false,
      "last_update_posted_date": "2019-01-17",
      "last_synced_at": "2026-09-10T13:50:14.777Z",
      "location_count": 6,
      "location_summary": "Chicago, Illinois • Iowa City, Iowa • Ann Arbor, Michigan + 3 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03808038"
    },
    {
      "nct_id": "NCT06705816",
      "title": "Cognitive Function in Rett Syndrome During Trofinetide Treatment",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rett Syndrome"
      ],
      "interventions": [
        {
          "name": "None interventional",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 20,
      "start_date": "2024-12-01",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2026-06-18",
      "last_synced_at": "2026-09-10T13:50:14.777Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06705816"
    },
    {
      "nct_id": "NCT02135419",
      "title": "Treatment in Preventing Anal Cancer in Patients With HIV and Anal High-Grade Lesions",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Anal Cancer",
        "High-grade Squamous Intraepithelial Lesion",
        "HIV Infection",
        "Human Papilloma Virus Infection"
      ],
      "interventions": [
        {
          "name": "imiquimod",
          "type": "DRUG"
        },
        {
          "name": "fluorouracil",
          "type": "DRUG"
        },
        {
          "name": "infrared photocoagulation therapy",
          "type": "DEVICE"
        },
        {
          "name": "thermal ablation therapy",
          "type": "DEVICE"
        },
        {
          "name": "laser therapy",
          "type": "DEVICE"
        },
        {
          "name": "clinical observation",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "AIDS Malignancy Consortium",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "35 Years and older"
      },
      "enrollment_count": 4446,
      "start_date": "2014-09-24",
      "completion_date": "2024-03-31",
      "has_results": true,
      "last_update_posted_date": "2024-07-26",
      "last_synced_at": "2026-09-10T13:50:14.777Z",
      "location_count": 24,
      "location_summary": "Los Angeles, California • Palm Springs, California • San Francisco, California + 13 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palm Springs",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02135419"
    },
    {
      "nct_id": "NCT06192004",
      "title": "Study of Non-Small Cell Lung Cancer Patients in the US Receiving Standard-of-Care and Initiating an Approved Therapy With Risk of Pneumonitis/ILD",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Non-Small Cell Lung Cancer"
      ],
      "interventions": [
        {
          "name": "None (Observational Study)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 83,
      "start_date": "2024-01-05",
      "completion_date": "2025-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-09-10T13:50:14.777Z",
      "location_count": 23,
      "location_summary": "Los Angeles, California • Denver, Colorado • Golden, Colorado + 18 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Golden",
          "state": "Colorado"
        },
        {
          "city": "Miami Lakes",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06192004"
    },
    {
      "nct_id": "NCT02745158",
      "title": "The Fibrodysplasia Ossificans Progressiva (FOP) Registry",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Fibrodysplasia Ossificans Progressiva (FOP)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "The International FOP Association",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 800,
      "start_date": "2015-07",
      "completion_date": "2040-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-08",
      "last_synced_at": "2026-09-10T13:50:14.777Z",
      "location_count": 1,
      "location_summary": "North Kansas City, Missouri",
      "locations": [
        {
          "city": "North Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02745158"
    },
    {
      "nct_id": "NCT07154823",
      "title": "A Longitudinal Multi-Center Molecular Biomarker Discovery Registry for Patients With Hematologic Malignancies",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Acute Myeloid Leukaemia (AML)",
        "Follicular Lymphoma ( FL)"
      ],
      "interventions": [
        {
          "name": "None - Observational Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Tempus AI",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "0 Years and older"
      },
      "enrollment_count": 550,
      "start_date": "2026-01-27",
      "completion_date": "2035-11",
      "has_results": false,
      "last_update_posted_date": "2026-09-02",
      "last_synced_at": "2026-09-10T13:50:14.777Z",
      "location_count": 10,
      "location_summary": "Iowa City, Iowa • Bethesda, Maryland • St Louis, Missouri + 7 more",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Reno",
          "state": "Nevada"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07154823"
    },
    {
      "nct_id": "NCT05903482",
      "title": "Gastric Volume in Patients on GLP-1 Medications",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Diabetes"
      ],
      "interventions": [
        {
          "name": "None - observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "Up to 18 Years"
      },
      "enrollment_count": 70,
      "start_date": "2023-06-06",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-03-19",
      "last_synced_at": "2026-09-10T13:50:14.777Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05903482"
    },
    {
      "nct_id": "NCT01915615",
      "title": "HCMR - Novel Markers of Prognosis in Hypertrophic Cardiomyopathy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypertrophic Cardiomyopathy"
      ],
      "interventions": [
        {
          "name": "None - this is an observational study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 2750,
      "start_date": "2014-04",
      "completion_date": "2025-06",
      "has_results": false,
      "last_update_posted_date": "2024-12-13",
      "last_synced_at": "2026-09-10T13:50:14.777Z",
      "location_count": 17,
      "location_summary": "New Haven, Connecticut • Chicago, Illinois • Baltimore, Maryland + 10 more",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01915615"
    },
    {
      "nct_id": "NCT07141277",
      "title": "GRANITE: Airsupra Effectiveness in the Real World",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "None (Observational study)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4060,
      "start_date": "2025-07-09",
      "completion_date": "2026-03-20",
      "has_results": false,
      "last_update_posted_date": "2026-06-12",
      "last_synced_at": "2026-09-10T13:50:14.777Z",
      "location_count": 1,
      "location_summary": "Wilmington, Delaware",
      "locations": [
        {
          "city": "Wilmington",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07141277"
    },
    {
      "nct_id": "NCT03452787",
      "title": "Epigenomic and Metabolomic Signatures of APOA2 Gene by Saturated Fat Interaction",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Body Mass Index"
      ],
      "interventions": [
        {
          "name": "None, cohort studies",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Tufts University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 602,
      "start_date": "2017-01-01",
      "completion_date": "2017-12-31",
      "has_results": false,
      "last_update_posted_date": "2018-03-02",
      "last_synced_at": "2026-09-10T13:50:14.777Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03452787"
    }
  ]
}