{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=99mTc+sulfur+colloid",
    "query": {
      "intervention": "99mTc sulfur colloid"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 13,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=99mTc+sulfur+colloid&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T18:38:12.526Z",
  "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": "NCT02287675",
      "title": "Sentinel Lymph Node Biopsy Findings in Patients With Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Lymphoseek",
          "type": "DRUG"
        },
        {
          "name": "Sulfur Colloid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kettering Health Network",
      "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": 40,
      "start_date": "2015-01-19",
      "completion_date": "2017-08-31",
      "has_results": true,
      "last_update_posted_date": "2020-07-28",
      "last_synced_at": "2026-09-24T18:38:12.526Z",
      "location_count": 1,
      "location_summary": "Kettering, Ohio",
      "locations": [
        {
          "city": "Kettering",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02287675"
    },
    {
      "nct_id": "NCT02294565",
      "title": "VST-1001 (Dilute Fluorescein) for Lymphatic Mapping & Localization of Lymph Nodes in Patients With Breast Cancer",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "VST-1001",
          "type": "DRUG"
        },
        {
          "name": "99mTc-labeled sulfur colloid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vestan, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 147,
      "start_date": "2014-06",
      "completion_date": "2016-05",
      "has_results": false,
      "last_update_posted_date": "2015-07-27",
      "last_synced_at": "2026-09-24T18:38:12.526Z",
      "location_count": 2,
      "location_summary": "Houston, Texas • Salt Lake City, Utah",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02294565"
    },
    {
      "nct_id": "NCT02881554",
      "title": "Sulfur Colloid SPECT/CT in Measuring Liver Function in Patients With Primary or Metastatic Liver Cancer Undergoing Radiation Therapy or Surgery",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hepatocellular Carcinoma",
        "Intrahepatic Cholangiocarcinoma",
        "Stage IV Liver Cancer",
        "Stage IVA Liver Cancer",
        "Stage IVB Liver Cancer",
        "Vascular Thrombosis"
      ],
      "interventions": [
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Single Photon Emission Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Technetium Tc-99m Sulfur Colloid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 41,
      "start_date": "2016-12-21",
      "completion_date": "2025-02-09",
      "has_results": true,
      "last_update_posted_date": "2025-10-29",
      "last_synced_at": "2026-09-24T18:38:12.526Z",
      "location_count": 2,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02881554"
    },
    {
      "nct_id": "NCT00006099",
      "title": "Monoclonal Antibody Therapy in Treating Patients Scheduled for Surgery to Remove Ovarian Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Ovarian Cancer"
      ],
      "interventions": [
        {
          "name": "Monoclonal antibody hu3S193",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Ludwig Institute for Cancer Research",
      "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": 1,
      "start_date": "2000-08-02",
      "completion_date": "2002-08-12",
      "has_results": true,
      "last_update_posted_date": "2023-10-04",
      "last_synced_at": "2026-09-24T18:38:12.526Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006099"
    },
    {
      "nct_id": "NCT01248221",
      "title": "Carbon-13 (13C)-Spirulina Platensis Gastric Emptying Breath Test (GEBT)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dyspepsia"
      ],
      "interventions": [
        {
          "name": "[13C]-Spirulina platensis and 99mTc sulfur colloid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 30,
      "start_date": "2010-12",
      "completion_date": "2011-12",
      "has_results": true,
      "last_update_posted_date": "2013-03-18",
      "last_synced_at": "2026-09-24T18:38:12.526Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01248221"
    },
    {
      "nct_id": "NCT01677338",
      "title": "Phase 2 Study to Evaluate the Preliminary Performance of the C13-URA Breath Test Kit in Dyspeptic Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Dyspeptic Subjects"
      ],
      "interventions": [
        {
          "name": "13C-uracil",
          "type": "DRUG"
        },
        {
          "name": "99mTc sulfur colloid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otsuka Pharmaceutical Co., Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 20,
      "start_date": "2013-07",
      "completion_date": "2014-07",
      "has_results": false,
      "last_update_posted_date": "2019-04-08",
      "last_synced_at": "2026-09-24T18:38:12.526Z",
      "location_count": 2,
      "location_summary": "Orlando, Florida • Lebanon, New Hampshire",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01677338"
    },
    {
      "nct_id": "NCT02869152",
      "title": "Sentinel Lymph Node Mapping in Rectal Cancer",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Rectal Neoplasms"
      ],
      "interventions": [
        {
          "name": "Endoscopic injection of 99mTc-sulfur colloid",
          "type": "OTHER"
        },
        {
          "name": "Endoscopic injection of ICG",
          "type": "OTHER"
        },
        {
          "name": "Endoscopic injection of Spot",
          "type": "OTHER"
        },
        {
          "name": "Flexible sigmoidoscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Endoscopic NIR imaging and gamma probe",
          "type": "PROCEDURE"
        },
        {
          "name": "Dissection of sentinel lymph node(s)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "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": 26,
      "start_date": "2016-08",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2016-10-31",
      "last_synced_at": "2026-09-24T18:38:12.526Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02869152"
    },
    {
      "nct_id": "NCT07121595",
      "title": "Personalized Neck Radiation Therapy Directed by Sentinel Lymph Node Biopsy for the Treatment of Oral Cavity Squamous Cell Carcinoma, PRECEDENT Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Oral Cavity Squamous Cell Carcinoma",
        "Stage I Lip and Oral Cavity Cancer AJCC v8",
        "Stage II Lip and Oral Cavity Cancer AJCC v8",
        "Stage III Lip and Oral Cavity Cancer AJCC v8",
        "Stage IVA Lip and Oral Cavity Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Modified Barium Swallow",
          "type": "PROCEDURE"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Sentinel Lymph Node Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Single Photon Emission Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Technetium Tc 99m-labeled Tilmanocept",
          "type": "RADIATION"
        },
        {
          "name": "Technetium Tc-99m Sulfur Colloid",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER",
        "RADIATION"
      ],
      "sponsor": "University of Michigan Rogel 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": 50,
      "start_date": "2025-07-17",
      "completion_date": "2030-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-31",
      "last_synced_at": "2026-09-24T18:38:12.526Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07121595"
    },
    {
      "nct_id": "NCT02773238",
      "title": "FLARE RT for Patients With Stage IIB-IIIB Non-small Cell Lung Cancer: Personalizing Radiation Therapy Using PET/CT and SPECT/CT Imaging",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stage IIB Lung Non-Small Cell Carcinoma AJCC v7",
        "Stage IIIA Lung Non-Small Cell Cancer AJCC v7",
        "Stage IIIB Lung Non-Small Cell Cancer AJCC v7"
      ],
      "interventions": [
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Fludeoxyglucose F-18",
          "type": "RADIATION"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Single Photon Emission Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Technetium Tc-99m Albumin Aggregated",
          "type": "RADIATION"
        },
        {
          "name": "Technetium Tc-99m Sulfur Colloid",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "RADIATION",
        "OTHER"
      ],
      "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": 51,
      "start_date": "2016-05-20",
      "completion_date": "2023-12-01",
      "has_results": true,
      "last_update_posted_date": "2024-08-14",
      "last_synced_at": "2026-09-24T18:38:12.526Z",
      "location_count": 2,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02773238"
    },
    {
      "nct_id": "NCT00940199",
      "title": "PASSION - P Trial: Ph Adjusted Sulfur-Colloid, Sentinel Initiative ON Pain Trial",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Walter Reed Army Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 140,
      "start_date": "2006-08",
      "completion_date": "2009-06",
      "has_results": false,
      "last_update_posted_date": "2009-07-15",
      "last_synced_at": "2026-09-24T18:38:12.526Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00940199"
    }
  ]
}