{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Advanced+Metastatic+Pheochromocytoma",
    "query": {
      "condition": "Advanced Metastatic Pheochromocytoma"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 16,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Advanced+Metastatic+Pheochromocytoma&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T09:46:37.012Z",
  "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": "NCT02721732",
      "title": "Pembrolizumab in Treating Patients With Rare Tumors That Cannot Be Removed by Surgery or Are Metastatic",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Malignant Solid Neoplasm",
        "Carcinoma of Unknown Primary",
        "Metastatic Adrenal Gland Pheochromocytoma",
        "Metastatic Kidney Medullary Carcinoma",
        "Metastatic Malignant Germ Cell Tumor",
        "Metastatic Malignant Solid Neoplasm",
        "Metastatic Paraganglioma",
        "Metastatic Penile Carcinoma",
        "Metastatic Skin Squamous Cell Carcinoma",
        "Small Cell Carcinoma",
        "Stage III Adrenal Cortex Carcinoma AJCC v7",
        "Stage IV Adrenal Cortex Carcinoma AJCC v7",
        "Stage IV Penile Cancer AJCC v7",
        "Stage IV Renal Cell Cancer AJCC v7",
        "Unresectable Adrenal Gland Pheochromocytoma",
        "Unresectable Paraganglioma",
        "Unresectable Skin Squamous Cell Carcinoma",
        "Unresectable Solid Neoplasm",
        "Vascular Neoplasm"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "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": 157,
      "start_date": "2016-08-15",
      "completion_date": "2028-12-31",
      "has_results": true,
      "last_update_posted_date": "2026-01-29",
      "last_synced_at": "2026-05-22T09:46:37.012Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02721732"
    },
    {
      "nct_id": "NCT00096083",
      "title": "Hepatic Arterial Infusion of Melphalan With Hepatic Perfusion in Treating Patients With Unresectable Liver Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "isolated perfusion",
          "type": "DRUG"
        },
        {
          "name": "melphalan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Delcath Systems Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "16 Years and older"
      },
      "enrollment_count": 56,
      "start_date": "2004-09",
      "completion_date": "2012-08",
      "has_results": false,
      "last_update_posted_date": "2013-10-23",
      "last_synced_at": "2026-05-22T09:46:37.012Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00096083"
    },
    {
      "nct_id": "NCT01340794",
      "title": "Pazopanib Hydrochloride in Treating Patients With Advanced or Progressive Malignant Pheochromocytoma or Paraganglioma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Extra-Adrenal Paraganglioma",
        "Metastatic Adrenal Gland Pheochromocytoma",
        "Paraganglioma",
        "Recurrent Adrenal Gland Pheochromocytoma"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Pazopanib Hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "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": 7,
      "start_date": "2011-05",
      "completion_date": "2014-11",
      "has_results": true,
      "last_update_posted_date": "2017-09-21",
      "last_synced_at": "2026-05-22T09:46:37.012Z",
      "location_count": 9,
      "location_summary": "Scottsdale, Arizona • Jacksonville, Florida • Baltimore, Maryland + 6 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01340794"
    },
    {
      "nct_id": "NCT04028479",
      "title": "The Registry of Oncology Outcomes Associated With Testing and Treatment",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Adenocarcinoma",
        "Adenocystic Carcinoma",
        "Anal Cancer",
        "Appendix Cancer",
        "Brain Tumor",
        "Glioblastoma",
        "Astrocytoma",
        "Bile Duct Cancer",
        "Cholangiocarcinoma",
        "Bladder Cancer",
        "Bone Cancer",
        "Synovial Sarcoma",
        "Chondrosarcoma",
        "Liposarcoma",
        "Sarcoma, Kaposi",
        "Sarcoma,Soft Tissue",
        "Sarcoma",
        "Osteosarcoma",
        "CNS Cancer",
        "Brain Stem Neoplasms",
        "Breast Cancer",
        "Cervical Cancer",
        "Colorectal Cancer",
        "Rectal Cancer",
        "Colon Cancer",
        "Esophageal Cancer",
        "Esophagus Cancer",
        "Cancer of Colon",
        "Pancreatic Cancer",
        "Cancer of Pancreas",
        "Testis Cancer",
        "Testicular Cancer",
        "Ureter Cancer",
        "Renal Cell Carcinoma",
        "Kidney Cancer",
        "Gestational Trophoblastic Tumor",
        "Head and Neck Neoplasms",
        "Parotid Tumor",
        "Larynx Cancer",
        "Tongue Cancer",
        "Pharynx Cancer",
        "Salivary Gland Cancer",
        "Acute Myeloid Leukemia",
        "Chronic Myeloid Leukemia",
        "Acute Lymphoblastic Leukemia",
        "Multiple Myeloma",
        "Non Hodgkin Lymphoma",
        "Carcinoid Tumor",
        "Lung Cancer",
        "Neuroendocrine Tumors",
        "Mesothelioma",
        "Thyroid Cancer",
        "Parathyroid Neoplasms",
        "Adrenal Cancer",
        "Small Bowel Cancer",
        "Stomach Cancer",
        "Liver Cancer",
        "Hepatic Cancer",
        "Melanoma",
        "Skin Cancer",
        "Unknown Primary Tumors",
        "Uterine Cancer",
        "Fallopian Tube Cancer",
        "Ovarian Cancer",
        "Prostate Cancer",
        "Vaginal Cancer",
        "Penile Cancer",
        "Vulvar Cancer",
        "Waldenstrom Macroglobulinemia",
        "Cancer, Advanced",
        "Thymus Cancer",
        "Nasopharyngeal Carcinoma",
        "Multiple Endocrine Neoplasia",
        "Pheochromocytoma",
        "Small Cell Carcinoma",
        "Pulmonary Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biomarker Testing (L)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Systemic Treatment (T)",
          "type": "DRUG"
        },
        {
          "name": "Patient Reported Outcomes (P)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Taproot Health",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 167,
      "start_date": "2021-05-05",
      "completion_date": "2024-10-31",
      "has_results": false,
      "last_update_posted_date": "2024-12-18",
      "last_synced_at": "2026-05-22T09:46:37.012Z",
      "location_count": 2,
      "location_summary": "Idaho Falls, Idaho • Laredo, Texas",
      "locations": [
        {
          "city": "Idaho Falls",
          "state": "Idaho"
        },
        {
          "city": "Laredo",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04028479"
    },
    {
      "nct_id": "NCT05636618",
      "title": "Targeted Alpha-Particle Therapy for Advanced Somatostatin Receptor Type 2 (SSTR2) Positive Tumors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Neuroendocrine Tumors Unresectable",
        "Neuroendocrine Tumor Metastatic",
        "Gastroenteropancreatic Neuroendocrine Tumor",
        "Bronchial Neuroendocrine Tumor",
        "Paraganglioma",
        "Pheochromocytoma",
        "Meningioma"
      ],
      "interventions": [
        {
          "name": "[203Pb]VMT-α-NET",
          "type": "DRUG"
        },
        {
          "name": "[212Pb]VMT-α-NET",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Perspective Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 300,
      "start_date": "2023-09-27",
      "completion_date": "2029-12-26",
      "has_results": false,
      "last_update_posted_date": "2026-05-14",
      "last_synced_at": "2026-05-22T09:46:37.012Z",
      "location_count": 19,
      "location_summary": "Jacksonville, Florida • Miami, Florida • Chicago, Illinois + 16 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05636618"
    },
    {
      "nct_id": "NCT04394858",
      "title": "Testing the Addition of an Anticancer Drug, Olaparib, to the Usual Chemotherapy (Temozolomide) for Advanced Neuroendocrine Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Adrenal Gland Pheochromocytoma",
        "Advanced Paraganglioma",
        "Metastatic Adrenal Gland Pheochromocytoma",
        "Metastatic Paraganglioma",
        "Stage III Adrenal Gland Pheochromocytoma and Sympathetic Paraganglioma AJCC v8",
        "Stage IV Adrenal Gland Pheochromocytoma and Sympathetic Paraganglioma AJCC v8",
        "Unresectable Adrenal Gland Pheochromocytoma",
        "Unresectable Paraganglioma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography with Contrast",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Olaparib",
          "type": "DRUG"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Temozolomide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 46,
      "start_date": "2021-03-17",
      "completion_date": "2028-03-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-13",
      "last_synced_at": "2026-05-22T09:46:37.012Z",
      "location_count": 163,
      "location_summary": "Anchorage, Alaska • Burbank, California • Fort Lauderdale, Florida + 120 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04394858"
    },
    {
      "nct_id": "NCT00655655",
      "title": "Everolimus and Vatalanib in Treating Patients With Advanced Solid Tumors",
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      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Gastrinoma",
        "Glucagonoma",
        "Insulinoma",
        "Metastatic Gastrointestinal Carcinoid Tumor",
        "Metastatic Pheochromocytoma",
        "Pancreatic Polypeptide Tumor",
        "Recurrent Gastrointestinal Carcinoid Tumor",
        "Recurrent Islet Cell Carcinoma",
        "Recurrent Melanoma",
        "Recurrent Neuroendocrine Carcinoma of the Skin",
        "Recurrent Non-small Cell Lung Cancer",
        "Recurrent Pheochromocytoma",
        "Recurrent Renal Cell Cancer",
        "Somatostatinoma",
        "Stage III Neuroendocrine Carcinoma of the Skin",
        "Stage IV Melanoma",
        "Stage IV Non-small Cell Lung Cancer",
        "Stage IV Renal Cell Cancer",
        "Thyroid Gland Medullary Carcinoma",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "everolimus",
          "type": "DRUG"
        },
        {
          "name": "vatalanib",
          "type": "DRUG"
        },
        {
          "name": "pharmacological study",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "dynamic contrast-enhanced magnetic resonance imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "ultrasound imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "PROCEDURE"
      ],
      "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": 96,
      "start_date": "2004-12",
      "completion_date": "2018-01-11",
      "has_results": false,
      "last_update_posted_date": "2024-08-21",
      "last_synced_at": "2026-05-22T09:46:37.012Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00655655"
    },
    {
      "nct_id": "NCT01155258",
      "title": "Temsirolimus and Vinorelbine Ditartrate in Treating Patients With Unresectable or Metastatic Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Extensive Stage Small Cell Lung Cancer",
        "Hereditary Paraganglioma",
        "Male Breast Cancer",
        "Malignant Paraganglioma",
        "Metastatic Gastrointestinal Carcinoid Tumor",
        "Metastatic Pheochromocytoma",
        "Pancreatic Polypeptide Tumor",
        "Recurrent Breast Cancer",
        "Recurrent Cervical Cancer",
        "Recurrent Endometrial Carcinoma",
        "Recurrent Gastrointestinal Carcinoid Tumor",
        "Recurrent Islet Cell Carcinoma",
        "Recurrent Neuroendocrine Carcinoma of the Skin",
        "Recurrent Non-small Cell Lung Cancer",
        "Recurrent Ovarian Epithelial Cancer",
        "Recurrent Ovarian Germ Cell Tumor",
        "Recurrent Pheochromocytoma",
        "Recurrent Prostate Cancer",
        "Recurrent Renal Cell Cancer",
        "Recurrent Small Cell Lung Cancer",
        "Recurrent Uterine Sarcoma",
        "Regional Gastrointestinal Carcinoid Tumor",
        "Regional Pheochromocytoma",
        "Stage III Cervical Cancer",
        "Stage III Endometrial Carcinoma",
        "Stage III Neuroendocrine Carcinoma of the Skin",
        "Stage III Ovarian Epithelial Cancer",
        "Stage III Ovarian Germ Cell Tumor",
        "Stage III Prostate Cancer",
        "Stage III Renal Cell Cancer",
        "Stage III Uterine Sarcoma",
        "Stage IIIA Breast Cancer",
        "Stage IIIA Non-small Cell Lung Cancer",
        "Stage IIIB Breast Cancer",
        "Stage IIIB Non-small Cell Lung Cancer",
        "Stage IIIC Breast Cancer",
        "Stage IV Breast Cancer",
        "Stage IV Endometrial Carcinoma",
        "Stage IV Neuroendocrine Carcinoma of the Skin",
        "Stage IV Non-small Cell Lung Cancer",
        "Stage IV Ovarian Epithelial Cancer",
        "Stage IV Ovarian Germ Cell Tumor",
        "Stage IV Prostate Cancer",
        "Stage IV Renal Cell Cancer",
        "Stage IV Uterine Sarcoma",
        "Stage IVA Cervical Cancer",
        "Stage IVB Cervical Cancer",
        "Thyroid Gland Medullary Carcinoma"
      ],
      "interventions": [
        {
          "name": "temsirolimus",
          "type": "DRUG"
        },
        {
          "name": "vinorelbine ditartrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "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": 19,
      "start_date": "2010-06",
      "completion_date": "2014-05",
      "has_results": false,
      "last_update_posted_date": "2016-06-13",
      "last_synced_at": "2026-05-22T09:46:37.012Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01155258"
    },
    {
      "nct_id": "NCT04187404",
      "title": "A Novel Therapeutic Vaccine (EO2401) in Metastatic Adrenocortical Carcinoma, or Malignant Pheochromocytoma/Paraganglioma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Adrenocortical Carcinoma",
        "Pheochromocytoma",
        "Paraganglioma"
      ],
      "interventions": [
        {
          "name": "EO2401",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Enterome",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2020-07-23",
      "completion_date": "2024-10-02",
      "has_results": true,
      "last_update_posted_date": "2026-01-30",
      "last_synced_at": "2026-05-22T09:46:37.012Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04187404"
    },
    {
      "nct_id": "NCT01635907",
      "title": "Dovitinib in Neuroendocrine Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Metastatic Paraganglioma",
        "Advanced Metastatic Pheochromocytoma",
        "Recurrent Paraganglioma",
        "Recurrent Pheochromocytoma",
        "Unresectable Paraganglioma",
        "Unresectable Pheochromocytoma"
      ],
      "interventions": [
        {
          "name": "Dovitinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 8,
      "start_date": "2012-06",
      "completion_date": "2016-04-11",
      "has_results": false,
      "last_update_posted_date": "2020-04-14",
      "last_synced_at": "2026-05-22T09:46:37.012Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01635907"
    }
  ]
}