{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Topotecan+Hydrochloride+Liposomes",
    "query": {
      "intervention": "Topotecan Hydrochloride Liposomes"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 14,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Topotecan+Hydrochloride+Liposomes&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-02T10:29:31.362Z",
  "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": "NCT02584478",
      "title": "Phase 1/2a/3 Evaluation of Adding AL3818 to Standard Platinum-Based Chemotherapy in Subjects With Recurrent or Metastatic Endometrial, Ovarian, Fallopian, Primary Peritoneal or Cervical Carcinoma (AL3818-US-002)",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Endometrial Carcinoma",
        "Ovarian Carcinoma",
        "Fallopian Tube Carcinoma",
        "Primary Peritoneal Carcinoma",
        "Cervical Carcinoma"
      ],
      "interventions": [
        {
          "name": "AL3818",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Pegylated Liposomal Doxorubicin (PLD)",
          "type": "DRUG"
        },
        {
          "name": "Topotecan",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Advenchen Laboratories, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 294,
      "start_date": "2015-12",
      "completion_date": "2024-12",
      "has_results": false,
      "last_update_posted_date": "2023-11-08",
      "last_synced_at": "2026-10-02T10:29:31.362Z",
      "location_count": 8,
      "location_summary": "Long Beach, California • Miami, Florida • Lexington, Kentucky + 5 more",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02584478"
    },
    {
      "nct_id": "NCT00057720",
      "title": "TLK286 (Telcyta) vs. Doxil/Caelyx or Hycamtin in Platinum Refractory or Resistant Ovarian Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Ovarian Neoplasms"
      ],
      "interventions": [
        {
          "name": "TLK286 HCl for injection",
          "type": "DRUG"
        },
        {
          "name": "topotecan hydrochloride for injection",
          "type": "DRUG"
        },
        {
          "name": "doxorubicin HCl liposome injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Telik",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 440,
      "start_date": "2003-06",
      "completion_date": "2006-12",
      "has_results": false,
      "last_update_posted_date": "2011-07-25",
      "last_synced_at": "2026-10-02T10:29:31.362Z",
      "location_count": 234,
      "location_summary": "Little Rock, Arkansas • Baldwin Park, California • Burbank, California + 146 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Baldwin Park",
          "state": "California"
        },
        {
          "city": "Burbank",
          "state": "California"
        },
        {
          "city": "Chula Vista",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00057720"
    },
    {
      "nct_id": "NCT00054444",
      "title": "Radiation Therapy and Chemotherapy in Treating Patients With Locally Advanced Cervical Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cervical Adenocarcinoma",
        "Cervical Squamous Cell Carcinoma",
        "Stage IB Cervical Cancer",
        "Stage IIA Cervical Cancer",
        "Stage IIB Cervical Cancer",
        "Stage III Cervical Cancer",
        "Stage IVA Cervical Cancer"
      ],
      "interventions": [
        {
          "name": "Topotecan Hydrochloride Liposomes",
          "type": "DRUG"
        },
        {
          "name": "3-Dimensional Conformal Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Gynecologic Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 11,
      "start_date": "2007-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-12-31",
      "last_synced_at": "2026-10-02T10:29:31.362Z",
      "location_count": 10,
      "location_summary": "Chicago, Illinois • Iowa City, Iowa • Columbia, Missouri + 5 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Columbia",
          "state": "Missouri"
        },
        {
          "city": "Camden",
          "state": "New Jersey"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00054444"
    },
    {
      "nct_id": "NCT01593228",
      "title": "Treatment Extension Study for Patients Who Have Previously Participated and Have Benefited From Iniparib in a Clinical Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Solid Tumors"
      ],
      "interventions": [
        {
          "name": "Iniparib (SAR240550/BSI-201)",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin HCL liposome injection",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "Irinotecan",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Topotecan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 37,
      "start_date": "2012-05",
      "completion_date": "2016-09",
      "has_results": false,
      "last_update_posted_date": "2017-09-19",
      "last_synced_at": "2026-10-02T10:29:31.362Z",
      "location_count": 29,
      "location_summary": "Birmingham, Alabama • Santa Maria, California • Vallejo, California + 25 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Santa Maria",
          "state": "California"
        },
        {
          "city": "Vallejo",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01593228"
    },
    {
      "nct_id": "NCT00011986",
      "title": "Combination Chemotherapy in Treating Patients With Stage III or Stage IV Ovarian Epithelial Cancer or Primary Peritoneal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Primary Peritoneal Carcinoma",
        "Stage III Ovarian Cancer",
        "Stage IV Ovarian Cancer"
      ],
      "interventions": [
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Pegylated Liposomal Doxorubicin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Topotecan Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Therapeutic Conventional Surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Gynecologic Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 4312,
      "start_date": "2001-01",
      "completion_date": "2013-01-28",
      "has_results": true,
      "last_update_posted_date": "2019-04-16",
      "last_synced_at": "2026-10-02T10:29:31.362Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00011986"
    },
    {
      "nct_id": "NCT00567567",
      "title": "Comparing Two Different Myeloablation Therapies in Treating Young Patients Who Are Undergoing a Stem Cell Transplant for High-Risk Neuroblastoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Localized Resectable Neuroblastoma",
        "Localized Unresectable Neuroblastoma",
        "Recurrent Neuroblastoma",
        "Regional Neuroblastoma",
        "Stage 4 Neuroblastoma",
        "Stage 4S Neuroblastoma"
      ],
      "interventions": [
        {
          "name": "Autologous Hematopoietic Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "External Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Isotretinoin",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Melphalan",
          "type": "DRUG"
        },
        {
          "name": "Peripheral Blood Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Pharmacological Study",
          "type": "OTHER"
        },
        {
          "name": "Thiotepa",
          "type": "DRUG"
        },
        {
          "name": "Topotecan Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Vincristine Sulfate Liposome",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "RADIATION",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "Up to 30 Years"
      },
      "enrollment_count": 665,
      "start_date": "2007-11-05",
      "completion_date": "2022-03-31",
      "has_results": true,
      "last_update_posted_date": "2022-04-28",
      "last_synced_at": "2026-10-02T10:29:31.362Z",
      "location_count": 169,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 128 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00567567"
    },
    {
      "nct_id": "NCT02364713",
      "title": "MV-NIS or Investigator's Choice Chemotherapy in Treating Patients With Ovarian, Fallopian, or Peritoneal Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Fallopian Tube Carcinosarcoma",
        "Fallopian Tube Clear Cell Adenocarcinoma",
        "Fallopian Tube Endometrioid Adenocarcinoma",
        "Fallopian Tube Mucinous Adenocarcinoma",
        "Fallopian Tube Serous Adenocarcinoma",
        "Fallopian Tube Transitional Cell Carcinoma",
        "Fallopian Tube Undifferentiated Carcinoma",
        "Ovarian Carcinosarcoma",
        "Ovarian Clear Cell Adenocarcinoma",
        "Ovarian Endometrioid Adenocarcinoma",
        "Ovarian Mucinous Adenocarcinoma",
        "Ovarian Seromucinous Carcinoma",
        "Ovarian Serous Adenocarcinoma",
        "Ovarian Transitional Cell Carcinoma",
        "Ovarian Undifferentiated Carcinoma",
        "Platinum-Resistant Fallopian Tube Carcinoma",
        "Platinum-Resistant Ovarian Carcinoma",
        "Platinum-Resistant Primary Peritoneal Carcinoma",
        "Primary Peritoneal Carcinosarcoma",
        "Primary Peritoneal Clear Cell Adenocarcinoma",
        "Primary Peritoneal Endometrioid Adenocarcinoma",
        "Primary Peritoneal Serous Adenocarcinoma",
        "Primary Peritoneal Transitional Cell Carcinoma",
        "Primary Peritoneal Undifferentiated Carcinoma",
        "Recurrent Fallopian Tube Carcinoma",
        "Recurrent Ovarian Carcinoma",
        "Recurrent Primary Peritoneal Carcinoma"
      ],
      "interventions": [
        {
          "name": "Bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Gemcitabine Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Oncolytic Measles Virus Encoding Thyroidal Sodium Iodide Symporter",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Pegylated Liposomal Doxorubicin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Topotecan Hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 17,
      "start_date": "2015-03-13",
      "completion_date": "2022-01-13",
      "has_results": true,
      "last_update_posted_date": "2025-12-11",
      "last_synced_at": "2026-10-02T10:29:31.362Z",
      "location_count": 3,
      "location_summary": "Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02364713"
    },
    {
      "nct_id": "NCT00765973",
      "title": "Topotecan Liposomes Injection for Small Cell Lung Cancer (SCLC), Ovarian Cancer and Other Advanced Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Small Cell Lung Cancer",
        "Ovarian Cancer",
        "Solid Tumors"
      ],
      "interventions": [
        {
          "name": "Topotecan Liposomes Injection (TLI)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Spectrum Pharmaceuticals, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2008-11-10",
      "completion_date": "2010-06-30",
      "has_results": false,
      "last_update_posted_date": "2020-11-13",
      "last_synced_at": "2026-10-02T10:29:31.362Z",
      "location_count": 2,
      "location_summary": "Detroit, Michigan • San Antonio, Texas",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00765973"
    },
    {
      "nct_id": "NCT00005962",
      "title": "Comparison of Three Treatment Regimens in Treating Patients With Relapsed or Refractory Acute Myelogenous Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia"
      ],
      "interventions": [
        {
          "name": "sargramostim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "cytarabine",
          "type": "DRUG"
        },
        {
          "name": "gemtuzumab ozogamicin",
          "type": "DRUG"
        },
        {
          "name": "liposomal daunorubicin citrate",
          "type": "DRUG"
        },
        {
          "name": "topotecan hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Eastern Cooperative Oncology Group",
      "sponsor_class": "NETWORK",
      "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": "2000-10-04",
      "completion_date": "2007-06",
      "has_results": false,
      "last_update_posted_date": "2023-06-22",
      "last_synced_at": "2026-10-02T10:29:31.362Z",
      "location_count": 62,
      "location_summary": "Scottsdale, Arizona • Duarte, California • Palo Alto, California + 44 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005962"
    },
    {
      "nct_id": "NCT05295589",
      "title": "Comparing Standard of Care Chemotherapy Treatment to the Combination of Copanlisib and Olaparib for Recurrent Platinum Resistant Ovarian Cancer That Has Progressed Through PARP Inhibitor Therapy",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Platinum-Refractory Fallopian Tube Carcinoma",
        "Platinum-Refractory Ovarian Carcinoma",
        "Platinum-Refractory Primary Peritoneal Carcinoma",
        "Recurrent Fallopian Tube Endometrioid Adenocarcinoma",
        "Recurrent Fallopian Tube High Grade Serous Adenocarcinoma",
        "Recurrent Ovarian Endometrioid Adenocarcinoma",
        "Recurrent Ovarian High Grade Serous Adenocarcinoma",
        "Recurrent Platinum-Resistant Fallopian Tube Carcinoma",
        "Recurrent Platinum-Resistant Ovarian Carcinoma",
        "Recurrent Platinum-Resistant Primary Peritoneal Carcinoma",
        "Recurrent Primary Peritoneal Endometrioid Adenocarcinoma",
        "Recurrent Primary Peritoneal High Grade Serous Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Copanlisib Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Olaparib",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Pegylated Liposomal Doxorubicin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Topotecan Hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2022-06-30",
      "completion_date": "2023-03-17",
      "has_results": false,
      "last_update_posted_date": "2023-09-26",
      "last_synced_at": "2026-10-02T10:29:31.362Z",
      "location_count": 5,
      "location_summary": "Aurora, Colorado • Iowa City, Iowa • Cleveland, Ohio + 2 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        },
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05295589"
    }
  ]
}