{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Relapsed%2FRefractory+B-Precursor+Acute+Lymphoblastic+Leukemia",
    "query": {
      "condition": "Relapsed/Refractory B-Precursor Acute Lymphoblastic Leukemia"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 360,
    "total_pages": 36,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Relapsed%2FRefractory+B-Precursor+Acute+Lymphoblastic+Leukemia&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T10:34:52.982Z",
  "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": "NCT07257419",
      "title": "CD45RA-depleted CD19-CAR T Cell Consolidation After TCRαβ+/CD19 B Cell-depleted Haploidentical Hematopoietic Cell Transplantation for Relapsed/Refractory CD19+ ALL and Lymphoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Relapsed Pediatric ALL",
        "Hematopoietic Cell Transplantation",
        "Hematologic Malignancy"
      ],
      "interventions": [
        {
          "name": "Anti-Thymocyte Globulin (Rabbit)",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Thiotepa",
          "type": "DRUG"
        },
        {
          "name": "Mesna",
          "type": "DRUG"
        },
        {
          "name": "Melphalan",
          "type": "DRUG"
        },
        {
          "name": "Filgrastim",
          "type": "DRUG"
        },
        {
          "name": "CliniMACS System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 70,
      "start_date": "2026-08-03",
      "completion_date": "2035-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-17",
      "last_synced_at": "2026-07-24T10:34:52.982Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07257419"
    },
    {
      "nct_id": "NCT01186328",
      "title": "EZN-3042 Administered With Re-induction Chemotherapy in Children With Relapsed Acute Lymphoblastic Leukemia (ALL)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Lymphoblastic Leukemia, Acute",
        "Lymphoblastic Leukemia, Acute, Childhood",
        "Leukemia, Lymphoblastic, Acute, T Cell",
        "Leukemia, Lymphoblastic, Acute"
      ],
      "interventions": [
        {
          "name": "EZN-3042",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Vincristine",
          "type": "DRUG"
        },
        {
          "name": "PEG-asparaginase",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Hydrocortisone",
          "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": 6,
      "start_date": "2010-08-24",
      "completion_date": "2012-01-10",
      "has_results": true,
      "last_update_posted_date": "2024-02-01",
      "last_synced_at": "2026-07-24T10:34:52.982Z",
      "location_count": 6,
      "location_summary": "Los Angeles, California • Baltimore, Maryland • Minneapolis, Minnesota + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01186328"
    },
    {
      "nct_id": "NCT00412243",
      "title": "Clofarabine and Cyclophosphamide Combination in Acute Lymphoblastic Leukemia Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Burkitt's Lymphoma",
        "Lymphoblastic Lymphoma",
        "Acute Lymphoblastic Leukemia"
      ],
      "interventions": [
        {
          "name": "Clofarabine",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 51,
      "start_date": "2006-03",
      "completion_date": "2012-04",
      "has_results": true,
      "last_update_posted_date": "2013-03-12",
      "last_synced_at": "2026-07-24T10:34:52.982Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00412243"
    },
    {
      "nct_id": "NCT00002504",
      "title": "Interleukin-2 Plus Interferon Alfa in Treating Adults With Metastatic Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Myeloproliferative Disorders",
        "Leukemia",
        "Lymphoma",
        "Multiple Myeloma and Plasma Cell Neoplasm",
        "Myelodysplastic Syndromes",
        "Precancerous/Nonmalignant Condition",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "aldesleukin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "recombinant interferon alfa",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Hoag Memorial Hospital Presbyterian",
      "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": "1992-08",
      "completion_date": "1999-02",
      "has_results": false,
      "last_update_posted_date": "2011-05-12",
      "last_synced_at": "2026-07-24T10:34:52.982Z",
      "location_count": 5,
      "location_summary": "Newport Beach, California • Bloomington, Indiana • Indianapolis, Indiana + 2 more",
      "locations": [
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Bloomington",
          "state": "Indiana"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "Knoxville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002504"
    },
    {
      "nct_id": "NCT00064090",
      "title": "3-AP and Cytarabine in Treating Patients With Hematologic Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Leukemia",
        "Myelodysplastic Syndromes",
        "Myelodysplastic/Myeloproliferative Neoplasms"
      ],
      "interventions": [
        {
          "name": "cytarabine",
          "type": "DRUG"
        },
        {
          "name": "triapine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vion Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": "2003-03",
      "completion_date": "2008-01",
      "has_results": false,
      "last_update_posted_date": "2013-07-18",
      "last_synced_at": "2026-07-24T10:34:52.982Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00064090"
    },
    {
      "nct_id": "NCT02879695",
      "title": "Blinatumomab and Nivolumab With or Without Ipilimumab in Treating Patients With Poor-Risk Relapsed or Refractory CD19+ Precursor B-Lymphoblastic Leukemia",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Recurrent B Acute Lymphoblastic Leukemia",
        "Recurrent Mixed Phenotype Acute Leukemia",
        "Refractory B Acute Lymphoblastic Leukemia",
        "Refractory Mixed Phenotype Acute Leukemia"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Blinatumomab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Bone Marrow Aspiration and Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "16 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2017-10-25",
      "completion_date": "2026-07-18",
      "has_results": true,
      "last_update_posted_date": "2026-05-29",
      "last_synced_at": "2026-07-24T10:34:52.982Z",
      "location_count": 7,
      "location_summary": "New Haven, Connecticut • Lexington, Kentucky • Baltimore, Maryland + 4 more",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02879695"
    },
    {
      "nct_id": "NCT00474929",
      "title": "Sorafenib and Everolimus in Treating Patients With Relapsed or Refractory Lymphoma or Multiple Myeloma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Lymphoma",
        "Multiple Myeloma and Plasma Cell Neoplasm"
      ],
      "interventions": [
        {
          "name": "RAD001",
          "type": "DRUG"
        },
        {
          "name": "Sorafenib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 103,
      "start_date": "2007-08-29",
      "completion_date": "2019-08-08",
      "has_results": true,
      "last_update_posted_date": "2019-08-20",
      "last_synced_at": "2026-07-24T10:34:52.982Z",
      "location_count": 2,
      "location_summary": "Iowa City, Iowa • Rochester, Minnesota",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00474929"
    },
    {
      "nct_id": "NCT00003406",
      "title": "Combination Chemotherapy Followed by Peripheral Stem Cell Transplantation in Treating Patients With Refractory Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Chronic Myeloproliferative Disorders",
        "Leukemia",
        "Lymphoma",
        "Multiple Myeloma and Plasma Cell Neoplasm",
        "Myelodysplastic Syndromes",
        "Precancerous/Nonmalignant Condition",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "carboplatin",
          "type": "DRUG"
        },
        {
          "name": "docetaxel",
          "type": "DRUG"
        },
        {
          "name": "ifosfamide",
          "type": "DRUG"
        },
        {
          "name": "autologous bone marrow transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "bone marrow ablation with stem cell support",
          "type": "PROCEDURE"
        },
        {
          "name": "peripheral blood stem cell transplantation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Cancer Treatment Centers of America",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "Up to 65 Years"
      },
      "enrollment_count": 30,
      "start_date": "1997-10",
      "completion_date": "2000-03",
      "has_results": false,
      "last_update_posted_date": "2013-03-26",
      "last_synced_at": "2026-07-24T10:34:52.982Z",
      "location_count": 1,
      "location_summary": "Zion, Illinois",
      "locations": [
        {
          "city": "Zion",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003406"
    },
    {
      "nct_id": "NCT03575325",
      "title": "Vyxeos(CPX-351) in Adults w R/R Acute Lymphoblastic Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoid Leukemia",
        "Acute Lymphoblastic Leukemia",
        "Refractory Acute Lymphoblastic Leukemia",
        "Relapsed Acute Lymphoblastic Leukemia"
      ],
      "interventions": [
        {
          "name": "CPX-351",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "H. Lee Moffitt Cancer Center and Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2018-10-11",
      "completion_date": "2023-09-14",
      "has_results": true,
      "last_update_posted_date": "2024-12-12",
      "last_synced_at": "2026-07-24T10:34:52.982Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03575325"
    },
    {
      "nct_id": "NCT00293488",
      "title": "SL-11047 in Treating Patients With Relapsed or Refractory Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "polyamine analogue PG11047",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Progen Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 20,
      "start_date": "2006-01",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2016-06-23",
      "last_synced_at": "2026-07-24T10:34:52.982Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00293488"
    }
  ]
}