{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Extrahepatic+Cholangiocarcinoma&page=5",
    "query": {
      "condition": "Extrahepatic Cholangiocarcinoma",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 98,
    "total_pages": 10,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Extrahepatic+Cholangiocarcinoma&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Extrahepatic+Cholangiocarcinoma&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T02:17:13.796Z",
  "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": "NCT03257761",
      "title": "Guadecitabine and Durvalumab in Treating Patients With Advanced Liver, Pancreatic, Bile Duct, or Gallbladder Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Extrahepatic Bile Duct Adenocarcinoma, Biliary Type",
        "Gallbladder Adenocarcinoma, Biliary Type",
        "Metastatic Pancreatic Adenocarcinoma",
        "Recurrent Cholangiocarcinoma",
        "Recurrent Gallbladder Carcinoma",
        "Recurrent Hepatocellular Carcinoma",
        "Recurrent Intrahepatic Cholangiocarcinoma",
        "Recurrent Pancreatic Carcinoma",
        "Stage III Gallbladder Cancer AJCC V7",
        "Stage III Hepatocellular Carcinoma AJCC v7",
        "Stage III Intrahepatic Cholangiocarcinoma AJCC v7",
        "Stage III Pancreatic Cancer AJCC v6 and v7",
        "Stage IIIA Gallbladder Cancer AJCC v7",
        "Stage IIIA Hepatocellular Carcinoma AJCC v7",
        "Stage IIIB Gallbladder Cancer AJCC v7",
        "Stage IIIB Hepatocellular Carcinoma AJCC v7",
        "Stage IIIC Hepatocellular Carcinoma AJCC v7",
        "Stage IV Gallbladder Cancer AJCC v7",
        "Stage IV Hepatocellular Carcinoma AJCC v7",
        "Stage IV Pancreatic Cancer AJCC v6 and v7",
        "Stage IVA Gallbladder Cancer AJCC v7",
        "Stage IVA Hepatocellular Carcinoma AJCC v7",
        "Stage IVA Intrahepatic Cholangiocarcinoma AJCC v7",
        "Stage IVB Gallbladder Cancer AJCC v7",
        "Stage IVB Hepatocellular Carcinoma AJCC v7",
        "Stage IVB Intrahepatic Cholangiocarcinoma AJCC v7",
        "Unresectable Gallbladder Carcinoma",
        "Unresectable Pancreatic Carcinoma"
      ],
      "interventions": [
        {
          "name": "Durvalumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Guadecitabine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 55,
      "start_date": "2018-02-07",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-01",
      "last_synced_at": "2026-10-17T02:17:13.796Z",
      "location_count": 3,
      "location_summary": "Los Angeles, California • Newport Beach, California • Baltimore, Maryland",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03257761"
    },
    {
      "nct_id": "NCT00253617",
      "title": "Stent Placement With or Without Photodynamic Therapy Using Porfimer Sodium as Palliative Treatment in Treating Patients With Stage III or Stage IV Cholangiocarcinoma That Cannot Be Removed By Surgery",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Cholangiocarcinoma of the Extrahepatic Bile Duct",
        "Cholangiocarcinoma of the Gallbladder",
        "Unresectable Extrahepatic Bile Duct Cancer",
        "Unresectable Gallbladder Cancer",
        "Recurrent Extrahepatic Bile Duct Cancer",
        "Recurrent Gallbladder Cancer"
      ],
      "interventions": [
        {
          "name": "porfimer sodium",
          "type": "DRUG"
        },
        {
          "name": "adjuvant therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "laser therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "photodynamic therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "phototherapy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Jonsson 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": 0,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-04-04",
      "last_synced_at": "2026-10-17T02:17:13.796Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00253617"
    },
    {
      "nct_id": "NCT02834013",
      "title": "Nivolumab and Ipilimumab in Treating Patients With Rare Tumors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acinar Cell Carcinoma",
        "Adenoid Cystic Carcinoma",
        "Adrenal Cortical Carcinoma",
        "Adrenal Gland Pheochromocytoma",
        "Anal Canal Neuroendocrine Carcinoma",
        "Anal Canal Undifferentiated Carcinoma",
        "Angiosarcoma",
        "Apocrine Neoplasm",
        "Appendix Mucinous Adenocarcinoma",
        "Bartholin Gland Transitional Cell Carcinoma",
        "Basal Cell Carcinoma",
        "Bladder Adenocarcinoma",
        "Breast Metaplastic Carcinoma",
        "Cervical Adenocarcinoma",
        "Cholangiocarcinoma",
        "Chordoma",
        "Colorectal Squamous Cell Carcinoma",
        "Desmoid Fibromatosis",
        "Endometrial Transitional Cell Carcinoma",
        "Endometrioid Adenocarcinoma",
        "Esophageal Neuroendocrine Carcinoma",
        "Esophageal Undifferentiated Carcinoma",
        "Extrahepatic Bile Duct Carcinoma",
        "Extramammary Paget Disease",
        "Fallopian Tube Adenocarcinoma",
        "Fallopian Tube Transitional Cell Carcinoma",
        "Fibromyxoid Tumor",
        "Gallbladder Carcinoma",
        "Gastric Neuroendocrine Carcinoma",
        "Gastric Squamous Cell Carcinoma",
        "Gastric Undifferentiated Carcinoma",
        "Gastrointestinal Stromal Tumor",
        "Gestational Trophoblastic Tumor",
        "Giant Cell Carcinoma",
        "Human Papillomavirus-Independent Cervical Adenocarcinoma, Clear Cell-Type",
        "Intestinal Neuroendocrine Carcinoma",
        "Intrahepatic Cholangiocarcinoma",
        "Lung Neuroendocrine Tumor",
        "Lung Sarcomatoid Carcinoma",
        "Major Salivary Gland Carcinoma",
        "Malignant Neoplasm of Unknown Primary",
        "Malignant Odontogenic Neoplasm",
        "Malignant Peripheral Nerve Sheath Tumor",
        "Malignant Solid Neoplasm",
        "Malignant Testicular Sex Cord-Stromal Tumor",
        "Metastatic Pituitary Neuroendocrine Tumor",
        "Minimally Invasive Lung Adenocarcinoma",
        "Mixed Mesodermal (Mullerian) Tumor",
        "Mucinous Adenocarcinoma",
        "Mucinous Cystadenocarcinoma",
        "Nasal Cavity Adenocarcinoma",
        "Nasal Cavity Carcinoma",
        "Nasopharyngeal Carcinoma",
        "Nasopharyngeal Low Grade Papillary Adenocarcinoma",
        "Nasopharyngeal Undifferentiated Carcinoma",
        "Oral Cavity Carcinoma",
        "Oropharyngeal Undifferentiated Carcinoma",
        "Ovarian Adenocarcinoma",
        "Ovarian Germ Cell Tumor",
        "Ovarian Mucinous Adenocarcinoma",
        "Ovarian Squamous Cell Carcinoma",
        "Ovarian Transitional Cell Carcinoma",
        "Pancreatic Acinar Cell Carcinoma",
        "Pancreatic Neuroendocrine Carcinoma",
        "Paraganglioma",
        "Paranasal Sinus Adenocarcinoma",
        "Paranasal Sinus Carcinoma",
        "Parathyroid Gland Carcinoma",
        "PEComa",
        "Penile Squamous Cell Carcinoma",
        "Peritoneal Mesothelial Neoplasm",
        "Placental Choriocarcinoma",
        "Primary Peritoneal High Grade Serous Adenocarcinoma",
        "Pseudomyxoma Peritonei",
        "Rare Disorder",
        "Scrotal Squamous Cell Carcinoma",
        "Seminal Vesicle Adenocarcinoma",
        "Seminoma",
        "Serous Cystadenocarcinoma",
        "Small Intestinal Adenocarcinoma",
        "Small Intestinal Squamous Cell Carcinoma",
        "Spindle Cell Neoplasm",
        "Teratoma With Somatic-Type Malignancy",
        "Testicular Non-Seminomatous Germ Cell Tumor",
        "Thyroid Gland Carcinoma",
        "Tracheal Carcinoma",
        "Transitional Cell Carcinoma",
        "Ureter Adenocarcinoma",
        "Ureter Squamous Cell Carcinoma",
        "Urethral Adenocarcinoma",
        "Urethral Squamous Cell Carcinoma",
        "Vaginal Adenocarcinoma",
        "Vaginal Squamous Cell Carcinoma, Not Otherwise Specified",
        "Vulvar Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Echocardiography Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL"
      ],
      "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": 798,
      "start_date": "2017-01-30",
      "completion_date": "2027-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-17",
      "last_synced_at": "2026-10-17T02:17:13.796Z",
      "location_count": 1006,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 620 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02834013"
    },
    {
      "nct_id": "NCT01007552",
      "title": "A Study of Gemcitabine, Capecitabine and Bevacizumab to Treat Cancer of the Gall Bladder or Bile Ducts",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cholangiocarcinoma"
      ],
      "interventions": [
        {
          "name": "Gemcitabine, Capecitabine and Bevacizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Roswell Park Cancer Institute",
      "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": "2009-12",
      "completion_date": "2015-05",
      "has_results": true,
      "last_update_posted_date": "2017-03-29",
      "last_synced_at": "2026-10-17T02:17:13.796Z",
      "location_count": 2,
      "location_summary": "Buffalo, New York • Columbus, Ohio",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01007552"
    },
    {
      "nct_id": "NCT00085410",
      "title": "Bortezomib in Treating Patients With Unresectable Locally Advanced or Metastatic Adenocarcinoma of the Bile Duct or Gallbladder",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Adenocarcinoma of the Extrahepatic Bile Duct",
        "Adenocarcinoma of the Gallbladder",
        "Advanced Adult Primary Liver Cancer",
        "Gastrointestinal Cancer",
        "Localized Unresectable Adult Primary Liver Cancer",
        "Recurrent Adult Primary Liver Cancer",
        "Recurrent Extrahepatic Bile Duct Cancer",
        "Recurrent Gallbladder Cancer",
        "Unresectable Extrahepatic Bile Duct Cancer",
        "Unresectable Gallbladder Cancer"
      ],
      "interventions": [
        {
          "name": "bortezomib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 20,
      "start_date": "2004-01",
      "completion_date": "2010-04",
      "has_results": true,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-10-17T02:17:13.796Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00085410"
    },
    {
      "nct_id": "NCT00020579",
      "title": "MS-275 in Treating Patients With Advanced Solid Tumors or Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "entinostat",
          "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": 75,
      "start_date": "2001-03",
      "completion_date": "2008-10",
      "has_results": false,
      "last_update_posted_date": "2012-03-15",
      "last_synced_at": "2026-10-17T02:17:13.796Z",
      "location_count": 3,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00020579"
    },
    {
      "nct_id": "NCT00003046",
      "title": "Interleukin-12 in Treating Patients With Cancer in the Abdomen",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Anal Cancer",
        "Colorectal Cancer",
        "Gallbladder Cancer",
        "Gastric Cancer",
        "Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "Recombinant Interleukin-12",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "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": 29,
      "start_date": "1997-08",
      "completion_date": "2001-10",
      "has_results": false,
      "last_update_posted_date": "2012-07-30",
      "last_synced_at": "2026-10-17T02:17:13.796Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003046"
    },
    {
      "nct_id": "NCT00033462",
      "title": "Erlotinib in Treating Patients With Unresectable Liver, Bile Duct, or Gallbladder Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Adult Primary Cholangiocellular Carcinoma",
        "Adult Primary Hepatocellular Carcinoma",
        "Advanced Adult Primary Liver Cancer",
        "Cholangiocarcinoma of the Extrahepatic Bile Duct",
        "Cholangiocarcinoma of the Gallbladder",
        "Localized Unresectable Adult Primary Liver Cancer",
        "Recurrent Adult Primary Liver Cancer",
        "Recurrent Extrahepatic Bile Duct Cancer",
        "Recurrent Gallbladder Cancer",
        "Unresectable Extrahepatic Bile Duct Cancer",
        "Unresectable Gallbladder Cancer"
      ],
      "interventions": [
        {
          "name": "erlotinib hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "laboratory biomarker analysis",
          "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": 78,
      "start_date": "2002-03",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-06-04",
      "last_synced_at": "2026-10-17T02:17:13.796Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00033462"
    },
    {
      "nct_id": "NCT00004895",
      "title": "Octreotide as Palliative Therapy for Cancer-Related Bowel Obstruction That Cannot Be Removed by Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Colorectal Cancer",
        "Constipation, Impaction, and Bowel Obstruction",
        "Extrahepatic Bile Duct Cancer",
        "Gastric Cancer",
        "Gastrointestinal Stromal Tumor",
        "Nausea and Vomiting",
        "Ovarian Cancer",
        "Pancreatic Cancer",
        "Peritoneal Cavity Cancer",
        "Small Intestine Cancer"
      ],
      "interventions": [
        {
          "name": "octreotide acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": "1999-10",
      "completion_date": "2002-10",
      "has_results": false,
      "last_update_posted_date": "2012-06-06",
      "last_synced_at": "2026-10-17T02:17:13.796Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004895"
    },
    {
      "nct_id": "NCT00059865",
      "title": "Gemcitabine Plus Pemetrexed Disodium in Treating Patients With Unresectable or Metastatic Biliary Tract or Gallbladder Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Extrahepatic Bile Duct Cancer",
        "Gallbladder Cancer",
        "Liver Cancer"
      ],
      "interventions": [
        {
          "name": "gemcitabine hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "pemetrexed disodium",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 68,
      "start_date": "2004-01",
      "completion_date": "2008-02",
      "has_results": false,
      "last_update_posted_date": "2016-12-07",
      "last_synced_at": "2026-10-17T02:17:13.796Z",
      "location_count": 41,
      "location_summary": "Chanute, Kansas • Dodge City, Kansas • El Dorado, Kansas + 29 more",
      "locations": [
        {
          "city": "Chanute",
          "state": "Kansas"
        },
        {
          "city": "Dodge City",
          "state": "Kansas"
        },
        {
          "city": "El Dorado",
          "state": "Kansas"
        },
        {
          "city": "Kingman",
          "state": "Kansas"
        },
        {
          "city": "Liberal",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00059865"
    }
  ]
}