{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Contrast&page=40",
    "query": {
      "intervention": "Contrast",
      "page": 40
    },
    "page_size": 10
  },
  "pagination": {
    "page": 40,
    "page_size": 10,
    "total_count": 1450,
    "total_pages": 145,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Contrast&page=41&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Contrast&page=39&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-24T13:37:59.021Z",
  "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": "NCT01104584",
      "title": "Efficacy and Safety of Gadobutrol 1.0 Molar (Gadovist) for Breast Magnetic Resonance Imaging (MRI)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Gadobutrol (Gadavist, Gadovist, BAY86-4875)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 460,
      "start_date": "2010-05",
      "completion_date": "2012-01",
      "has_results": true,
      "last_update_posted_date": "2014-11-11",
      "last_synced_at": "2026-10-24T13:37:59.021Z",
      "location_count": 9,
      "location_summary": "Tucson, Arizona • Oakland, California • Englewood, Colorado + 6 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01104584"
    },
    {
      "nct_id": "NCT03335020",
      "title": "Using Ultrasonography, Shear Wave Elastography, Strain Imaging, and 3-D Volume Ultrasonography on Cardiovascular Disease",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Fibromuscular Dysplasia of Arteries",
        "Segmental Arterial Mediolysis",
        "Spontaneous Coronary Artery Dissection",
        "Atherosclerosis of Artery"
      ],
      "interventions": [
        {
          "name": "Shear Wave Elastography",
          "type": "DEVICE"
        },
        {
          "name": "Pulse Wave Imaging",
          "type": "DEVICE"
        },
        {
          "name": "Contrast-Enhanced Ultrasound",
          "type": "DRUG"
        },
        {
          "name": "Strain Imaging",
          "type": "OTHER"
        },
        {
          "name": "3-D Volume Ultrasound",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2018-04-01",
      "completion_date": "2020-12-31",
      "has_results": false,
      "last_update_posted_date": "2020-05-29",
      "last_synced_at": "2026-10-24T13:37:59.021Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03335020"
    },
    {
      "nct_id": "NCT00091052",
      "title": "Radiation Therapy and Sargramostim in Treating Patients With Advanced Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "sargramostim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "RADIATION"
      ],
      "sponsor": "Sirius Medicine",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": "2004-07",
      "completion_date": "2006-06",
      "has_results": false,
      "last_update_posted_date": "2013-03-26",
      "last_synced_at": "2026-10-24T13:37:59.021Z",
      "location_count": 1,
      "location_summary": "Loveland, Colorado",
      "locations": [
        {
          "city": "Loveland",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00091052"
    },
    {
      "nct_id": "NCT01815515",
      "title": "Evaluation of 18F-DCFBC PSMA-based PET Imaging for Detection of Metastatic Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "18F-DCFBC",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "MALE",
        "summary": "18 Years to 100 Years · Male only"
      },
      "enrollment_count": 22,
      "start_date": "2013-03",
      "completion_date": "2015-11-18",
      "has_results": true,
      "last_update_posted_date": "2018-08-20",
      "last_synced_at": "2026-10-24T13:37:59.021Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01815515"
    },
    {
      "nct_id": "NCT05357833",
      "title": "Novel Imaging Markers in SPMS",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Secondary Progressive Multiple Sclerosis",
        "Multiple Sclerosis, Secondary Progressive",
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Ferumoxytol infusion",
          "type": "DRUG"
        },
        {
          "name": "Gadoteridol",
          "type": "DRUG"
        },
        {
          "name": "MRI Brain and Cervical Spine",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "35 Years to 65 Years"
      },
      "enrollment_count": 11,
      "start_date": "2022-06-01",
      "completion_date": "2023-09-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-13",
      "last_synced_at": "2026-10-24T13:37:59.021Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05357833"
    },
    {
      "nct_id": "NCT00640458",
      "title": "Study to Investigate Effect of Sildenafil on Clitoral Engorgement as Measured by Magnetic Resonance Imaging (MRI) in Pre-menopausal Women With Female Sexual Arousal Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Female Sexual Arousal Disorder"
      ],
      "interventions": [
        {
          "name": "Sildenafil 100 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer's Upjohn has merged with Mylan to form Viatris Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 20,
      "start_date": "2004-04",
      "completion_date": "2007-03",
      "has_results": false,
      "last_update_posted_date": "2021-02-01",
      "last_synced_at": "2026-10-24T13:37:59.021Z",
      "location_count": 2,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00640458"
    },
    {
      "nct_id": "NCT02560116",
      "title": "The Role of Echocardiographic Contrast (Optison) in Enhancing Tricuspid Regurgitation Spectral Doppler Signals",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypertension, Pulmonary"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Northwell Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2015-06",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2016-01-21",
      "last_synced_at": "2026-10-24T13:37:59.021Z",
      "location_count": 1,
      "location_summary": "Manhasset, New York",
      "locations": [
        {
          "city": "Manhasset",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02560116"
    },
    {
      "nct_id": "NCT04877847",
      "title": "Multi-Center Trial Utilizing Low Frequency Ultrasound in the Prevention of Post-Contrast Acute Kidney Injury",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Contrast-induced Nephropathy",
        "Chronic Kidney Diseases"
      ],
      "interventions": [
        {
          "name": "Low-frequency therapeutic ultrasound (LOTUS)",
          "type": "DEVICE"
        },
        {
          "name": "LOTUS System with Ultrasound Disabled",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Sonogenix",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2021-09-24",
      "completion_date": "2023-01-23",
      "has_results": false,
      "last_update_posted_date": "2023-04-12",
      "last_synced_at": "2026-10-24T13:37:59.021Z",
      "location_count": 4,
      "location_summary": "Detroit, Michigan • Petoskey, Michigan • Pittsburgh, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Petoskey",
          "state": "Michigan"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04877847"
    },
    {
      "nct_id": "NCT06261814",
      "title": "Contrast Enhanced Ultrasound to Evaluate Response to Chemoembolization in Patients With Liver Tumors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Liver Neoplasms"
      ],
      "interventions": [
        {
          "name": "Sulfur Hexafluoride Lipid Microspheres",
          "type": "DRUG"
        },
        {
          "name": "Contrast-Enhanced Ultrasound",
          "type": "PROCEDURE"
        },
        {
          "name": "Transarterial Chemoembolization",
          "type": "PROCEDURE"
        },
        {
          "name": "Medical Chart Review",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "john eisenbrey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 266,
      "start_date": "2024-08-07",
      "completion_date": "2028-01-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-10-24T13:37:59.021Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06261814"
    },
    {
      "nct_id": "NCT04870645",
      "title": "Advanced MRI Scan Before and After Radiation Therapy for the Detection of Intracranial Metastasis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Malignant Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Advanced Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Conventional Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Gadolinium-Chelate",
          "type": "DRUG"
        },
        {
          "name": "Iopamidol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "M.D. Anderson 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": 15,
      "start_date": "2021-03-30",
      "completion_date": "2023-08-29",
      "has_results": true,
      "last_update_posted_date": "2024-11-06",
      "last_synced_at": "2026-10-24T13:37:59.021Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04870645"
    }
  ]
}