{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Technetium+Tc-99m+Sulfur+Colloid&page=2",
    "query": {
      "intervention": "Technetium Tc-99m Sulfur Colloid",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 31,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Technetium+Tc-99m+Sulfur+Colloid&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Technetium+Tc-99m+Sulfur+Colloid&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-03T19:34:09.319Z",
  "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": "NCT01276054",
      "title": "Sentinel and/or Axillary Lymph Node Biopsy With or Without Axillary Reverse Mapping in Reducing Incidence and Severity of Arm Lymphedema in Stage 0-2 Patients.",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphedema",
        "Recurrent Breast Cancer",
        "Stage IA Breast Cancer",
        "Stage IB Breast Cancer",
        "Stage II Breast Cancer"
      ],
      "interventions": [
        {
          "name": "technetium Tc 99m sulfur colloid",
          "type": "RADIATION"
        },
        {
          "name": "methylene blue",
          "type": "DRUG"
        },
        {
          "name": "indocyanine green solution",
          "type": "DRUG"
        },
        {
          "name": "sentinel lymph node biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "axillary lymph node biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "bioimpedance spectroscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "quality-of-life assessment",
          "type": "PROCEDURE"
        },
        {
          "name": "lymphedema management",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DRUG",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "University of Southern California",
      "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": 4,
      "start_date": "2010-12",
      "completion_date": "2011-10",
      "has_results": true,
      "last_update_posted_date": "2014-08-01",
      "last_synced_at": "2026-10-03T19:34:09.319Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01276054"
    },
    {
      "nct_id": "NCT00005640",
      "title": "Lymphatic Mapping and Sentinel Lymph Node Biopsy in the Treatment of Colorectal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Preoperative Endoscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Technetium Tc 99m Sulfur Colloid",
          "type": "RADIATION"
        },
        {
          "name": "Gamma Probe",
          "type": "PROCEDURE"
        },
        {
          "name": "Biopsy of Sentinel Lymph Nodes",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "H. Lee Moffitt Cancer Center and Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 17,
      "start_date": "1999-06",
      "completion_date": "2002-02",
      "has_results": false,
      "last_update_posted_date": "2012-09-25",
      "last_synced_at": "2026-10-03T19:34:09.319Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005640"
    },
    {
      "nct_id": "NCT01887197",
      "title": "Repeatability and Response Study of Absorptive Clearance Scans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cystic Fibrosis"
      ],
      "interventions": [
        {
          "name": "Absorptive clearance scan",
          "type": "OTHER"
        },
        {
          "name": "inhaled hypertonic saline (7%)",
          "type": "DRUG"
        },
        {
          "name": "mannitol inhalation powder",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Tim Corcoran",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2013-06",
      "completion_date": "2018-05",
      "has_results": false,
      "last_update_posted_date": "2018-11-06",
      "last_synced_at": "2026-10-03T19:34:09.319Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01887197"
    },
    {
      "nct_id": "NCT04901715",
      "title": "Functional Studies of Novel Genes Mutated in Primary Ciliary Dyskinesia II: Genotype to Phenotype",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Primary Ciliary Dyskinesia"
      ],
      "interventions": [
        {
          "name": "Albuterol",
          "type": "DRUG"
        },
        {
          "name": "Technetium99m - Sulfur Colloid (Tc99m-SC)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "12 Years to 90 Years"
      },
      "enrollment_count": 27,
      "start_date": "2021-06-10",
      "completion_date": "2024-07-22",
      "has_results": true,
      "last_update_posted_date": "2025-09-05",
      "last_synced_at": "2026-10-03T19:34:09.319Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04901715"
    },
    {
      "nct_id": "NCT00080860",
      "title": "Sentinel Lymph Node Biopsy and Primary Tumor Gene Expression Profiling in Finding Axillary Lymph Node Metastases in Women Who Have Received Neoadjuvant Therapy for Stage II, Stage III, or Stage IV Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "microarray analysis",
          "type": "GENETIC"
        },
        {
          "name": "immunohistochemistry staining method",
          "type": "OTHER"
        },
        {
          "name": "conventional surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "lymphangiography",
          "type": "PROCEDURE"
        },
        {
          "name": "radionuclide imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "sentinel lymph node biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "technetium Tc 99m sulfur colloid",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "OTHER",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "National Institutes of Health Clinical Center (CC)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 60,
      "start_date": "2004-02",
      "completion_date": "2007-08",
      "has_results": false,
      "last_update_posted_date": "2012-03-08",
      "last_synced_at": "2026-10-03T19:34:09.319Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00080860"
    },
    {
      "nct_id": "NCT00743314",
      "title": "Single-Photon Emission Computed Tomography, Computed Tomography Lymphoscintigraphy, and Intensity-Modulated Radiation Therapy in Treating Patients Who Have Undergone Surgery for Stage I or Stage II Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Breast Cancer",
        "Lymphedema"
      ],
      "interventions": [
        {
          "name": "screening questionnaire administration",
          "type": "OTHER"
        },
        {
          "name": "computed tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "lymphoscintigraphy",
          "type": "PROCEDURE"
        },
        {
          "name": "single photon emission computed tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "intensity-modulated radiation therapy",
          "type": "RADIATION"
        },
        {
          "name": "technetium Tc 99m sulfur colloid",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 30,
      "start_date": "2008-09",
      "completion_date": "2016-10",
      "has_results": false,
      "last_update_posted_date": "2018-10-09",
      "last_synced_at": "2026-10-03T19:34:09.319Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00743314"
    },
    {
      "nct_id": "NCT00541190",
      "title": "Absorptive Clearance in the Cystic Fibrosis Airway",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cystic Fibrosis"
      ],
      "interventions": [
        {
          "name": "Technetium [Tc-99m] sulfur colloid and Indium [In-111] DTPA",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 21,
      "start_date": "2007-10",
      "completion_date": "2008-04",
      "has_results": true,
      "last_update_posted_date": "2017-08-24",
      "last_synced_at": "2026-10-03T19:34:09.319Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00541190"
    },
    {
      "nct_id": "NCT01660412",
      "title": "Does Alkalinization Reduce Perceived Pain Levels During Sentinel Lymph Node Imaging?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Standard of Care First",
          "type": "DRUG"
        },
        {
          "name": "ph Altered first",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Arkansas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "122 Years",
        "sex": "ALL",
        "summary": "18 Years to 122 Years"
      },
      "enrollment_count": 60,
      "start_date": "2012-08-01",
      "completion_date": "2016-12-30",
      "has_results": true,
      "last_update_posted_date": "2017-11-20",
      "last_synced_at": "2026-10-03T19:34:09.319Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01660412"
    },
    {
      "nct_id": "NCT04499742",
      "title": "Comparative Assessment of Radioisotope Glucose and Breath Test",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Small Intestinal Bacterial Overgrowth"
      ],
      "interventions": [
        {
          "name": "Using Isotope (Tc99m-Sulfur Colloid) to label glucose and administer this directly into duodenum.",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Augusta University",
      "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": 25,
      "start_date": "2019-01-21",
      "completion_date": "2021-12-14",
      "has_results": false,
      "last_update_posted_date": "2020-08-05",
      "last_synced_at": "2026-10-03T19:34:09.319Z",
      "location_count": 1,
      "location_summary": "Augusta, Georgia",
      "locations": [
        {
          "city": "Augusta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04499742"
    },
    {
      "nct_id": "NCT00450723",
      "title": "Thoracoscopic Sentinel Lymph Node Biopsy in Patients With Stage I or Stage II Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Isosulfan blue",
          "type": "DRUG"
        },
        {
          "name": "Axillary Lymph Node Dissection",
          "type": "PROCEDURE"
        },
        {
          "name": "Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Sentinel Lymph Node Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Thoracoscopic Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Technetium Tc 99m Sulfur Colloid",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 39,
      "start_date": "2004-05",
      "completion_date": "2011-03",
      "has_results": true,
      "last_update_posted_date": "2017-02-07",
      "last_synced_at": "2026-10-03T19:34:09.319Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00450723"
    }
  ]
}