{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=PEG-L-asparaginase&page=2",
    "query": {
      "intervention": "PEG-L-asparaginase",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 116,
    "total_pages": 12,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=PEG-L-asparaginase&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=PEG-L-asparaginase&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-08T03:27:23.706Z",
  "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": "NCT00866749",
      "title": "Augmented Berlin-Frankfurt-Munster (BFM) Therapy for Adolescent/Young Adults With Acute Lymphoblastic Leukemia or Acute Lymphoblastic Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoblastic Leukemia",
        "Lymphoblastic Lymphoma"
      ],
      "interventions": [
        {
          "name": "Daunorubicin",
          "type": "DRUG"
        },
        {
          "name": "Vincristine",
          "type": "DRUG"
        },
        {
          "name": "PEG-asparaginase",
          "type": "DRUG"
        },
        {
          "name": "Intrathecal Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Mercaptopurine",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Thioguanine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "12 Years to 40 Years"
      },
      "enrollment_count": 120,
      "start_date": "2006-09-12",
      "completion_date": "2018-07-26",
      "has_results": true,
      "last_update_posted_date": "2019-09-10",
      "last_synced_at": "2026-10-08T03:27:23.706Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00866749"
    },
    {
      "nct_id": "NCT02879643",
      "title": "Vincristine Sulfate Liposome Injection (Marqibo®) in Combination With UK ALL R3 Induction Chemotherapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "ALL, Childhood",
        "Lymphoblastic Leukemia, Acute, Childhood",
        "Lymphoblastic Leukemia, Acute"
      ],
      "interventions": [
        {
          "name": "Marqibo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Therapeutic Advances in Childhood Leukemia Consortium",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "1 Year to 21 Years"
      },
      "enrollment_count": 29,
      "start_date": "2017-01-31",
      "completion_date": "2024-12-31",
      "has_results": true,
      "last_update_posted_date": "2025-10-22",
      "last_synced_at": "2026-10-08T03:27:23.706Z",
      "location_count": 28,
      "location_summary": "Los Angeles, California • Orange, California • San Francisco, California + 25 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02879643"
    },
    {
      "nct_id": "NCT03007147",
      "title": "Imatinib Mesylate and Combination Chemotherapy in Treating Patients With Newly Diagnosed Philadelphia Chromosome Positive Acute Lymphoblastic Leukemia",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acute Lymphoblastic Leukemia",
        "B Acute Lymphoblastic Leukemia",
        "Mixed Phenotype Acute Leukemia",
        "T Acute Lymphoblastic Leukemia"
      ],
      "interventions": [
        {
          "name": "Allogeneic Hematopoietic Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Calaspargase Pegol",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Daunorubicin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Dexrazoxane Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ifosfamide",
          "type": "DRUG"
        },
        {
          "name": "Imatinib Mesylate",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Leucovorin Calcium",
          "type": "DRUG"
        },
        {
          "name": "Levoleucovorin",
          "type": "DRUG"
        },
        {
          "name": "Mercaptopurine",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "Pegaspargase",
          "type": "DRUG"
        },
        {
          "name": "Prednisolone",
          "type": "DRUG"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Therapeutic Hydrocortisone",
          "type": "DRUG"
        },
        {
          "name": "Thioguanine",
          "type": "DRUG"
        },
        {
          "name": "Vincristine Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "1 Year to 21 Years"
      },
      "enrollment_count": 352,
      "start_date": "2017-08-08",
      "completion_date": "2034-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-10-05",
      "last_synced_at": "2026-10-08T03:27:23.706Z",
      "location_count": 184,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 145 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03007147"
    },
    {
      "nct_id": "NCT05326516",
      "title": "A Study of Revumenib in Combination With Chemotherapy in Participants With R/R Acute Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Relapsed/Refractory Leukemias",
        "Acute Lymphoblastic Leukemia",
        "Acute Lymphocytic Leukemia",
        "Mixed Phenotype Acute Leukemia",
        "Acute Myeloid Leukemia",
        "Acute Undifferentiated Leukemia"
      ],
      "interventions": [
        {
          "name": "Revumenib",
          "type": "DRUG"
        },
        {
          "name": "Chemotherapy Regimen 1",
          "type": "DRUG"
        },
        {
          "name": "Chemotherapy Regimen 2",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Syndax Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Days",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Days and older"
      },
      "enrollment_count": 30,
      "start_date": "2022-03-09",
      "completion_date": "2024-07-29",
      "has_results": false,
      "last_update_posted_date": "2024-08-13",
      "last_synced_at": "2026-10-08T03:27:23.706Z",
      "location_count": 10,
      "location_summary": "San Francisco, California • Boston, Massachusetts • Kansas City, Missouri + 6 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05326516"
    },
    {
      "nct_id": "NCT00476190",
      "title": "ALL Adult Consortium Trial: Adult ALL Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Lymphoblastic Leukemia"
      ],
      "interventions": [
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Vincristine",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisone",
          "type": "DRUG"
        },
        {
          "name": "Hydrocortisone Sodium Succinate",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "6-MP",
          "type": "DRUG"
        },
        {
          "name": "PEG-Asparaginase",
          "type": "DRUG"
        },
        {
          "name": "Imatinib",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Radiation Therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "E. coli Asparaginase",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 112,
      "start_date": "2007-04",
      "completion_date": "2020-03",
      "has_results": true,
      "last_update_posted_date": "2025-06-12",
      "last_synced_at": "2026-10-08T03:27:23.706Z",
      "location_count": 7,
      "location_summary": "Boston, Massachusetts • New York, New York • Columbus, Ohio + 1 more",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00476190"
    },
    {
      "nct_id": "NCT00439296",
      "title": "ABT-751 With Chemotherapy for Relapsed Pediatric ALL",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Recurrent Pediatric ALL",
        "Relapsed Pediatric ALL",
        "Acute Lymphoblastic Leukemia",
        "Refractory Pediatric ALL"
      ],
      "interventions": [
        {
          "name": "ABT-751",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "PEG-asparaginase",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "6-thioguanine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Therapeutic Advances in Childhood Leukemia Consortium",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 9,
      "start_date": "2006-05-22",
      "completion_date": "2009-09-23",
      "has_results": true,
      "last_update_posted_date": "2021-03-17",
      "last_synced_at": "2026-10-08T03:27:23.706Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • Palo Alto, California • San Francisco, California + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00439296"
    },
    {
      "nct_id": "NCT00991133",
      "title": "A Safety and Tolerability Study of Clofarabine, Etoposide, Cyclophosphamide, PEG-asparaginase, and Vincristine in Pediatric Acute Lymphoblastic Leukemia (ALL)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Lymphoblastic Leukemia, Acute, Childhood"
      ],
      "interventions": [
        {
          "name": "Clofarabine incorporated into a 5-drug regimen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Genzyme, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "1 Year to 30 Years"
      },
      "enrollment_count": 8,
      "start_date": "2009-10",
      "completion_date": "2011-04",
      "has_results": false,
      "last_update_posted_date": "2015-04-30",
      "last_synced_at": "2026-10-08T03:27:23.706Z",
      "location_count": 6,
      "location_summary": "Los Angeles, California • Aurora, Colorado • Atlanta, Georgia + 3 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00991133"
    },
    {
      "nct_id": "NCT03181126",
      "title": "A Study of Venetoclax in Combination With Navitoclax and Chemotherapy in Subjects With Relapsed/Refractory Acute Lymphoblastic Leukemia or Relapsed/Refractory Lymphoblastic Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Acute Lymphoblastic Leukemia (ALL)",
        "Lymphoblastic Lymphoma"
      ],
      "interventions": [
        {
          "name": "Navitoclax",
          "type": "DRUG"
        },
        {
          "name": "Chemotherapy",
          "type": "DRUG"
        },
        {
          "name": "Venetoclax",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AbbVie",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "4 Years and older"
      },
      "enrollment_count": 69,
      "start_date": "2017-11-27",
      "completion_date": "2020-11-14",
      "has_results": false,
      "last_update_posted_date": "2021-10-14",
      "last_synced_at": "2026-10-08T03:27:23.706Z",
      "location_count": 12,
      "location_summary": "Duarte, California • Palo Alto, California • Chicago, Illinois + 9 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03181126"
    },
    {
      "nct_id": "NCT04501614",
      "title": "A Study of Ponatinib With Chemotherapy in Children, Teenagers, and Adults With Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Pediatric Philadelphia Chromosome-positive Acute Lymphoblastic Leukemia (Ph+ALL)",
        "Ph+ Mixed Phenotype Acute Leukemia (MPAL)",
        "Philadelphia Chromosome-Like ALL (Ph-like ALL)"
      ],
      "interventions": [
        {
          "name": "Ponatinib",
          "type": "DRUG"
        },
        {
          "name": "Chemotherapy Agents",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Takeda",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "1 Year to 21 Years"
      },
      "enrollment_count": 11,
      "start_date": "2021-02-24",
      "completion_date": "2024-07-19",
      "has_results": true,
      "last_update_posted_date": "2025-10-02",
      "last_synced_at": "2026-10-08T03:27:23.706Z",
      "location_count": 13,
      "location_summary": "Little Rock, Arkansas • Los Angeles, California • San Diego, California + 10 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Wilmington",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04501614"
    },
    {
      "nct_id": "NCT00873093",
      "title": "Bortezomib and Combination Chemotherapy in Treating Young Patients With Relapsed Acute Lymphoblastic Leukemia or Lymphoblastic Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "B-cell Adult Acute Lymphoblastic Leukemia",
        "B-cell Childhood Acute Lymphoblastic Leukemia",
        "Recurrent Adult Acute Lymphoblastic Leukemia",
        "Recurrent Adult Lymphoblastic Lymphoma",
        "Recurrent Childhood Acute Lymphoblastic Leukemia",
        "Recurrent Childhood Lymphoblastic Lymphoma",
        "T-cell Adult Acute Lymphoblastic Leukemia",
        "T-cell Childhood Acute Lymphoblastic Leukemia"
      ],
      "interventions": [
        {
          "name": "L-asparaginase",
          "type": "DRUG"
        },
        {
          "name": "doxorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "therapeutic hydrocortisone",
          "type": "DRUG"
        },
        {
          "name": "vincristine sulfate",
          "type": "DRUG"
        },
        {
          "name": "cytarabine",
          "type": "DRUG"
        },
        {
          "name": "prednisone",
          "type": "DRUG"
        },
        {
          "name": "bortezomib",
          "type": "DRUG"
        },
        {
          "name": "pegaspargase",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        },
        {
          "name": "etoposide phosphate",
          "type": "DRUG"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "leucovorin calcium",
          "type": "DRUG"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "High Dose MTX",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "31 Years",
        "sex": "ALL",
        "summary": "1 Year to 31 Years"
      },
      "enrollment_count": 148,
      "start_date": "2009-03",
      "completion_date": "2014-09",
      "has_results": true,
      "last_update_posted_date": "2017-01-27",
      "last_synced_at": "2026-10-08T03:27:23.706Z",
      "location_count": 157,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 124 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Downey",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00873093"
    }
  ]
}