{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Definity+ultrasound+contrast+agent&page=2",
    "query": {
      "intervention": "Definity ultrasound contrast agent",
      "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=Definity+ultrasound+contrast+agent&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T05:38:23.655Z",
  "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": "NCT01501929",
      "title": "Effects of Nebivolol on Skeletal Muscle During Exercise in Hypertensive Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Metoprolol succinate",
          "type": "DRUG"
        },
        {
          "name": "Nebivolol",
          "type": "DRUG"
        },
        {
          "name": "Non-invasive measurement of Cardiac Output (CO)",
          "type": "PROCEDURE"
        },
        {
          "name": "Endothelial cell collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Microvascular perfusion assessment using Definity",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 32,
      "start_date": "2010-08",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2018-11-06",
      "last_synced_at": "2026-09-29T05:38:23.655Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01501929"
    },
    {
      "nct_id": "NCT05281731",
      "title": "Sonobiopsy for Noninvasive and Sensitive Detection of Glioblastoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glioblastoma",
        "Glioblastoma Multiforme"
      ],
      "interventions": [
        {
          "name": "Sonobiopsy",
          "type": "DEVICE"
        },
        {
          "name": "Research blood",
          "type": "PROCEDURE"
        },
        {
          "name": "Cancer Personalized Profiling",
          "type": "GENETIC"
        },
        {
          "name": "Definity®",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE",
        "GENETIC"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2022-04-18",
      "completion_date": "2028-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-14",
      "last_synced_at": "2026-09-29T05:38:23.655Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05281731"
    },
    {
      "nct_id": "NCT01101269",
      "title": "Effect of Angiotensin Converting Enzyme Inhibitor, Lisinopril, on Renal Blood Flow and Its Correlation With Proteinuria Reduction in Subjects With Type 2 Diabetes and Kidney Disease",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 2 Diabetes"
      ],
      "interventions": [
        {
          "name": "ACEI or ARB",
          "type": "DRUG"
        },
        {
          "name": "Lisinopril",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 6,
      "start_date": "2010-02",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2017-05-12",
      "last_synced_at": "2026-09-29T05:38:23.655Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01101269"
    },
    {
      "nct_id": "NCT05530798",
      "title": "CEUS For Intraoperative Spinal Cord Injury",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spine Disease",
        "Spinal Stenosis",
        "Spinal Injury",
        "Spinal Cord Diseases",
        "Spinal Cord Injuries",
        "Spinal Cord Compression",
        "Spine Degeneration"
      ],
      "interventions": [
        {
          "name": "Definity Perflutren Lipid Microsphere Ultrasound Contrast",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medical University of South Carolina",
      "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": 20,
      "start_date": "2023-12-01",
      "completion_date": "2025-08-01",
      "has_results": true,
      "last_update_posted_date": "2026-09-04",
      "last_synced_at": "2026-09-29T05:38:23.655Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05530798"
    },
    {
      "nct_id": "NCT04721886",
      "title": "Contrast-Enhanced Ultrasound Scan for the Estimation of Tissue Pressure in Patients With Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "Ultrasonsgraphy",
          "type": "PROCEDURE"
        },
        {
          "name": "Perflutren Lipid Microcpheres",
          "type": "DRUG"
        },
        {
          "name": "Contrast - Enhanced Ultrasound",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "21 Years and older · Female only"
      },
      "enrollment_count": 25,
      "start_date": "2020-11-24",
      "completion_date": "2023-07-11",
      "has_results": true,
      "last_update_posted_date": "2026-04-02",
      "last_synced_at": "2026-09-29T05:38:23.655Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04721886"
    },
    {
      "nct_id": "NCT01751529",
      "title": "Open-label Pilot Evaluating Renal Lesions w/ Contrast-enhaced US in Patients w/ Renal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Kidney Cancer"
      ],
      "interventions": [
        {
          "name": "Contrast-enhanced Ultrasound",
          "type": "PROCEDURE"
        },
        {
          "name": "Perflutren lipid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "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": 48,
      "start_date": "2013-05",
      "completion_date": "2015-11",
      "has_results": false,
      "last_update_posted_date": "2017-03-17",
      "last_synced_at": "2026-09-29T05:38:23.655Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01751529"
    },
    {
      "nct_id": "NCT06654804",
      "title": "Contrast-enhanced Ultrasound in the Treatment of Acute Spinal Cord Injury",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acute Spinal Cord Injury"
      ],
      "interventions": [
        {
          "name": "Perflutren lipid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2023-09-28",
      "completion_date": "2027-09-15",
      "has_results": false,
      "last_update_posted_date": "2025-04-27",
      "last_synced_at": "2026-09-29T05:38:23.655Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06654804"
    },
    {
      "nct_id": "NCT07436364",
      "title": "Application of Contrast-enhanced Ultrasound in Monitoring Soft Tissue Sarcoma Response to Neoadjuvant Radiotherapy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Soft Tissue Sarcoma"
      ],
      "interventions": [
        {
          "name": "Definity",
          "type": "DRUG"
        },
        {
          "name": "Contrast-Enhanced Ultrasound",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Thomas Jefferson 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": "2026-03-23",
      "completion_date": "2027-05",
      "has_results": false,
      "last_update_posted_date": "2026-04-14",
      "last_synced_at": "2026-09-29T05:38:23.655Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07436364"
    },
    {
      "nct_id": "NCT02147470",
      "title": "Evaluation of Renal Blood Flow Using Contrast Enhanced Ultrasound for Differential Diagnosis of Acute Kidney Injury in Cirrhotic Patients: A Pilot Study",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Liver Cirrhosis and Acute Kidney Injury"
      ],
      "interventions": [
        {
          "name": "Definity ultrasound contrast agent",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 25,
      "start_date": "2013-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-05-26",
      "last_synced_at": "2026-09-29T05:38:23.655Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02147470"
    },
    {
      "nct_id": "NCT01631318",
      "title": "Pilot 3D Contrast-Enhanced Ultrasound Imaging to Predict Treatment Response in Liver Metastases",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Liver Metastases",
        "Colon Cancer"
      ],
      "interventions": [
        {
          "name": "Dynamic contrast-enhanced ultrasound imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Optical Tracking Device",
          "type": "DEVICE"
        },
        {
          "name": "Electromagnetic Tracking Device",
          "type": "DEVICE"
        },
        {
          "name": "Perflutren",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2012-11-01",
      "completion_date": "2020-09-30",
      "has_results": false,
      "last_update_posted_date": "2022-06-10",
      "last_synced_at": "2026-09-29T05:38:23.655Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01631318"
    }
  ]
}