{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Stage+III+Extrahepatic+Bile+Duct+Cancer",
    "query": {
      "condition": "Stage III Extrahepatic Bile Duct Cancer"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 47,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Stage+III+Extrahepatic+Bile+Duct+Cancer&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T09:27:51.099Z",
  "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": "NCT00004910",
      "title": "Endoscopic Placement of Metal Stents in Treating Patients With Cancer- Related Duodenal Obstruction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Colorectal Cancer",
        "Constipation, Impaction, and Bowel Obstruction",
        "Extrahepatic Bile Duct Cancer",
        "Gastric Cancer",
        "Gastrointestinal Carcinoid Tumor",
        "Gastrointestinal Stromal Tumor",
        "Pancreatic Cancer",
        "Quality of Life",
        "Small Intestine Cancer"
      ],
      "interventions": [
        {
          "name": "bowel obstruction management",
          "type": "PROCEDURE"
        },
        {
          "name": "quality-of-life assessment",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": "2000-01",
      "completion_date": "2003-02",
      "has_results": false,
      "last_update_posted_date": "2012-06-06",
      "last_synced_at": "2026-06-11T09:27:51.099Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004910"
    },
    {
      "nct_id": "NCT00087191",
      "title": "EF5 and Motexafin Lutetium in Detecting Tumor Cells in Patients With Abdominal or Non-Small Cell Lung Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Advanced Adult Primary Liver Cancer",
        "Carcinoma of the Appendix",
        "Fallopian Tube Cancer",
        "Gastrointestinal Stromal Tumor",
        "Localized Extrahepatic Bile Duct Cancer",
        "Localized Gallbladder Cancer",
        "Localized Gastrointestinal Carcinoid Tumor",
        "Localized Resectable Adult Primary Liver Cancer",
        "Localized Unresectable Adult Primary Liver Cancer",
        "Metastatic Gastrointestinal Carcinoid Tumor",
        "Ovarian Sarcoma",
        "Ovarian Stromal Cancer",
        "Primary Peritoneal Cavity Cancer",
        "Recurrent Adult Primary Liver Cancer",
        "Recurrent Adult Soft Tissue Sarcoma",
        "Recurrent Colon Cancer",
        "Recurrent Extrahepatic Bile Duct Cancer",
        "Recurrent Gallbladder Cancer",
        "Recurrent Gastric Cancer",
        "Recurrent Gastrointestinal Carcinoid Tumor",
        "Recurrent Non-small Cell Lung Cancer",
        "Recurrent Ovarian Epithelial Cancer",
        "Recurrent Ovarian Germ Cell Tumor",
        "Recurrent Pancreatic Cancer",
        "Recurrent Rectal Cancer",
        "Recurrent Small Intestine Cancer",
        "Recurrent Uterine Sarcoma",
        "Regional Gastrointestinal Carcinoid Tumor",
        "Small Intestine Adenocarcinoma",
        "Small Intestine Leiomyosarcoma",
        "Small Intestine Lymphoma",
        "Stage 0 Non-small Cell Lung Cancer",
        "Stage I Adult Soft Tissue Sarcoma",
        "Stage I Colon Cancer",
        "Stage I Gastric Cancer",
        "Stage I Non-small Cell Lung Cancer",
        "Stage I Ovarian Epithelial Cancer",
        "Stage I Ovarian Germ Cell Tumor",
        "Stage I Pancreatic Cancer",
        "Stage I Rectal Cancer",
        "Stage I Uterine Sarcoma",
        "Stage II Adult Soft Tissue Sarcoma",
        "Stage II Colon Cancer",
        "Stage II Gastric Cancer",
        "Stage II Non-small Cell Lung Cancer",
        "Stage II Ovarian Epithelial Cancer",
        "Stage II Ovarian Germ Cell Tumor",
        "Stage II Pancreatic Cancer",
        "Stage II Rectal Cancer",
        "Stage II Uterine Sarcoma",
        "Stage III Adult Soft Tissue Sarcoma",
        "Stage III Colon Cancer",
        "Stage III Gastric Cancer",
        "Stage III Ovarian Epithelial Cancer",
        "Stage III Ovarian Germ Cell Tumor",
        "Stage III Pancreatic Cancer",
        "Stage III Rectal Cancer",
        "Stage III Uterine Sarcoma",
        "Stage IIIA Non-small Cell Lung Cancer",
        "Stage IIIB Non-small Cell Lung Cancer",
        "Stage IV Adult Soft Tissue Sarcoma",
        "Stage IV Colon Cancer",
        "Stage IV Gastric Cancer",
        "Stage IV Non-small Cell Lung Cancer",
        "Stage IV Ovarian Epithelial Cancer",
        "Stage IV Ovarian Germ Cell Tumor",
        "Stage IV Pancreatic Cancer",
        "Stage IV Rectal Cancer",
        "Stage IV Uterine Sarcoma",
        "Unresectable Extrahepatic Bile Duct Cancer",
        "Unresectable Gallbladder Cancer"
      ],
      "interventions": [
        {
          "name": "EF5",
          "type": "DRUG"
        },
        {
          "name": "motexafin lutetium",
          "type": "DRUG"
        },
        {
          "name": "pharmacological study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2004-05",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-01-16",
      "last_synced_at": "2026-06-11T09:27:51.099Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00087191"
    },
    {
      "nct_id": "NCT02392637",
      "title": "Gemcitabine Hydrochloride, Cisplatin, and Nab-Paclitaxel in Treating Patients With Advanced or Metastatic Biliary Cancers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stage III Intrahepatic Cholangiocarcinoma AJCC v7",
        "Stage IIIA Gallbladder Cancer AJCC v7",
        "Stage IIIB Gallbladder Cancer AJCC v7",
        "Stage IVA Gallbladder Cancer AJCC v7",
        "Stage IVA Intrahepatic Cholangiocarcinoma AJCC v7",
        "Stage IVB Gallbladder Cancer AJCC v7",
        "Stage IVB Intrahepatic Cholangiocarcinoma AJCC v7",
        "Unresectable Extrahepatic Bile Duct Carcinoma",
        "Unresectable Gallbladder Carcinoma"
      ],
      "interventions": [
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Nab-paclitaxel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "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": 62,
      "start_date": "2015-04-02",
      "completion_date": "2020-08-13",
      "has_results": true,
      "last_update_posted_date": "2022-02-02",
      "last_synced_at": "2026-06-11T09:27:51.099Z",
      "location_count": 3,
      "location_summary": "Scottsdale, Arizona • Rochester, Minnesota • Houston, Texas",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02392637"
    },
    {
      "nct_id": "NCT05564403",
      "title": "Study of Chemotherapy, With or Without Binimetinib in Advanced Biliary Tract Cancers in 2nd Line Setting (A ComboMATCH Treatment Trial)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Biliary Tract Carcinoma",
        "Advanced Gallbladder Carcinoma",
        "Advanced Intrahepatic Cholangiocarcinoma",
        "Recurrent Biliary Tract Carcinoma",
        "Recurrent Gallbladder Carcinoma",
        "Recurrent Intrahepatic Cholangiocarcinoma",
        "Stage III Distal Bile Duct Cancer AJCC v8",
        "Stage III Gallbladder Cancer AJCC v8",
        "Stage III Hilar Cholangiocarcinoma AJCC v8",
        "Stage III Intrahepatic Cholangiocarcinoma AJCC v8",
        "Stage IV Distal Bile Duct Cancer AJCC v8",
        "Stage IV Gallbladder Cancer AJCC v8",
        "Stage IV Hilar Cholangiocarcinoma AJCC v8",
        "Stage IV Intrahepatic Cholangiocarcinoma AJCC v8",
        "Unresectable Biliary Tract Carcinoma",
        "Unresectable Gallbladder Carcinoma",
        "Unresectable Intrahepatic Cholangiocarcinoma"
      ],
      "interventions": [
        {
          "name": "Binimetinib",
          "type": "DRUG"
        },
        {
          "name": "Biopsy Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Echocardiography Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Fluorouracil",
          "type": "DRUG"
        },
        {
          "name": "Leucovorin Calcium",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Oxaliplatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 66,
      "start_date": "2024-02-09",
      "completion_date": "2026-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-13",
      "last_synced_at": "2026-06-11T09:27:51.099Z",
      "location_count": 208,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 163 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05564403"
    },
    {
      "nct_id": "NCT04072445",
      "title": "Trifluridine/Tipiracil and Irinotecan for the Treatment of Advanced Refractory Biliary Tract Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Bile Duct Carcinoma",
        "Advanced Gallbladder Carcinoma",
        "Refractory Bile Duct Carcinoma",
        "Refractory Gallbladder Carcinoma",
        "Stage III Distal Bile Duct Cancer AJCC v8",
        "Stage III Gallbladder Cancer AJCC v8",
        "Stage III Intrahepatic Bile Duct Cancer AJCC v8",
        "Stage IIIA Distal Bile Duct Cancer AJCC v8",
        "Stage IIIA Gallbladder Cancer AJCC v8",
        "Stage IIIA Intrahepatic Bile Duct Cancer AJCC v8",
        "Stage IIIB Distal Bile Duct Cancer AJCC v8",
        "Stage IIIB Gallbladder Cancer AJCC v8",
        "Stage IIIB Intrahepatic Bile Duct Cancer AJCC v8",
        "Stage IV Distal Bile Duct Cancer AJCC v8",
        "Stage IV Gallbladder Cancer AJCC v8",
        "Stage IV Intrahepatic Bile Duct Cancer AJCC v8",
        "Stage IVA Gallbladder Cancer AJCC v8",
        "Stage IVB Gallbladder Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Irinotecan",
          "type": "DRUG"
        },
        {
          "name": "Irinotecan Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Trifluridine and Tipiracil Hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2019-10-18",
      "completion_date": "2021-08-13",
      "has_results": true,
      "last_update_posted_date": "2023-08-09",
      "last_synced_at": "2026-06-11T09:27:51.099Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04072445"
    },
    {
      "nct_id": "NCT03117855",
      "title": "Capecitabine and Y-90 Radioembolization in Treating Patients With Advanced Bile Duct Cancer in the Liver That Cannot Be Removed by Surgery",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Bile Duct Adenocarcinoma",
        "Stage III Intrahepatic Cholangiocarcinoma",
        "Stage IVA Intrahepatic Cholangiocarcinoma",
        "Stage IVB Intrahepatic Cholangiocarcinoma"
      ],
      "interventions": [
        {
          "name": "Capecitabine",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Radioembolization",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "RADIATION"
      ],
      "sponsor": "City of Hope Medical Center",
      "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": "2016-12",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2017-04-18",
      "last_synced_at": "2026-06-11T09:27:51.099Z",
      "location_count": 1,
      "location_summary": "Duarte, California",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03117855"
    },
    {
      "nct_id": "NCT04163900",
      "title": "Comparing NUC-1031 Plus Cisplatin to Gemcitabine Plus Cisplatin in Patients With Advanced Biliary Tract Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Biliary Tract Cancer"
      ],
      "interventions": [
        {
          "name": "NUC-1031",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NuCana plc",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 773,
      "start_date": "2019-12-24",
      "completion_date": "2022-04-05",
      "has_results": true,
      "last_update_posted_date": "2023-05-24",
      "last_synced_at": "2026-06-11T09:27:51.099Z",
      "location_count": 29,
      "location_summary": "Tucson, Arizona • Whittier, California • Aurora, Colorado + 23 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Whittier",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04163900"
    },
    {
      "nct_id": "NCT00003411",
      "title": "Radiation Therapy in Treating Patients With Bile Duct, Gallbladder, or Pancreatic Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Extrahepatic Bile Duct Cancer",
        "Gallbladder Cancer",
        "Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "motexafin gadolinium",
          "type": "DRUG"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "University of Pittsburgh",
      "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": null,
      "start_date": "1998-11",
      "completion_date": "2002-06",
      "has_results": false,
      "last_update_posted_date": "2016-01-18",
      "last_synced_at": "2026-06-11T09:27:51.099Z",
      "location_count": 3,
      "location_summary": "Lebanon, New Hampshire • Pittsburgh, Pennsylvania • Madison, Wisconsin",
      "locations": [
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003411"
    },
    {
      "nct_id": "NCT00021047",
      "title": "Epirubicin, Carboplatin, and Capecitabine in Treating Patients With Unresectable Locally Advanced, Metastatic, or Recurrent Solid Tumor",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Esophageal Cancer",
        "Extrahepatic Bile Duct Cancer",
        "Gastric Cancer",
        "Head and Neck Cancer",
        "Liver Cancer",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "capecitabine",
          "type": "DRUG"
        },
        {
          "name": "carboplatin",
          "type": "DRUG"
        },
        {
          "name": "epirubicin hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institutes of Health Clinical Center (CC)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": "2001-07",
      "completion_date": "2004-06",
      "has_results": false,
      "last_update_posted_date": "2012-03-08",
      "last_synced_at": "2026-06-11T09:27:51.099Z",
      "location_count": 3,
      "location_summary": "Bethesda, Maryland • Portsmouth, Virginia",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Portsmouth",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00021047"
    },
    {
      "nct_id": "NCT00538850",
      "title": "Fentanyl Sublingual Spray in Treating Patients With Breakthrough Cancer Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Fentanyl sublingual spray",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "INSYS Therapeutics Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 130,
      "start_date": "2007-10",
      "completion_date": "2010-10",
      "has_results": true,
      "last_update_posted_date": "2014-03-05",
      "last_synced_at": "2026-06-11T09:27:51.099Z",
      "location_count": 1,
      "location_summary": "Chandler, Arizona",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00538850"
    }
  ]
}