{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=SPECT+Lung+Perfusion+Scan",
    "query": {
      "intervention": "SPECT Lung Perfusion Scan"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 3,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T19:30:44.789Z",
  "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": "NCT01458639",
      "title": "Compare Technegas Ventilation-Perfusion SPECT and Xenon Ventilation-Perfusion Planar Imaging for Pulmonary Embolism",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Embolism"
      ],
      "interventions": [
        {
          "name": "Technegas V SPECT imaging",
          "type": "DRUG"
        },
        {
          "name": "Xenon-133 Ventilation Planar imaging",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cyclomedica Australia PTY Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2012-08",
      "completion_date": "2015-06",
      "has_results": true,
      "last_update_posted_date": "2015-11-10",
      "last_synced_at": "2026-09-05T19:30:44.789Z",
      "location_count": 2,
      "location_summary": "St Louis, Missouri • New York, New York",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01458639"
    },
    {
      "nct_id": "NCT02259452",
      "title": "Radiation Induced Cardiopulmonary Injury in Humans",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Thoracic",
        "Pulmonary Injury",
        "Heart Injuries"
      ],
      "interventions": [
        {
          "name": "SPECT Lung Perfusion Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "SPECT Heart Perfusion Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Pulmonary Function Tests",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "UNC Lineberger Comprehensive 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": 91,
      "start_date": "2008-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2020-02-26",
      "last_synced_at": "2026-09-05T19:30:44.789Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02259452"
    },
    {
      "nct_id": "NCT00875940",
      "title": "Right Ventricular Hypertrophy and Pulmonary Hypertension: A Correlation Analysis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "Diagnostic imaging procedures.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": null,
      "start_date": "2008-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2009-04-06",
      "last_synced_at": "2026-09-05T19:30:44.789Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00875940"
    }
  ]
}