{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Relapsed+or+Refractory+B+Cell+Acute+Lymphoblastic+Leukemia",
    "query": {
      "condition": "Relapsed or Refractory B Cell Acute Lymphoblastic Leukemia"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 244,
    "total_pages": 25,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Relapsed+or+Refractory+B+Cell+Acute+Lymphoblastic+Leukemia&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-25T14:17:48.751Z",
  "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": "NCT05674175",
      "title": "Co-administration of CART22-65s and huCART19 for B-ALL",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "B-cell Acute Lymphoblastic Leukemia",
        "B Lineage Lymphoblastic Lymphoma"
      ],
      "interventions": [
        {
          "name": "Autologous, humanized anti-CD22 CAR T cell therapy (CART22-65s)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Autologous, humanized anti-CD19 CAR T cell therapy (huCART19)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Stephan Grupp MD PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "Up to 29 Years"
      },
      "enrollment_count": 93,
      "start_date": "2023-01-25",
      "completion_date": "2029-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-27",
      "last_synced_at": "2026-06-25T14:17:48.751Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05674175"
    },
    {
      "nct_id": "NCT00008164",
      "title": "Umbilical Cord Blood and Placental Blood Transplantation in Treating Patients With Hematologic Cancer or Aplastic Anemia",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Childhood Langerhans Cell Histiocytosis",
        "Leukemia",
        "Lymphoma",
        "Multiple Myeloma and Plasma Cell Neoplasm",
        "Myelodysplastic Syndromes",
        "Myelodysplastic/Myeloproliferative Neoplasms"
      ],
      "interventions": [
        {
          "name": "umbilical cord blood transplantation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Herbert Irving Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "Up to 60 Years"
      },
      "enrollment_count": 30,
      "start_date": "1997-01",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-12-18",
      "last_synced_at": "2026-06-25T14:17:48.751Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00008164"
    },
    {
      "nct_id": "NCT00726830",
      "title": "Methadone, Morphine, or Oxycodone in Treating Pain in Patients With Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Brain and Central Nervous System Tumors",
        "Chronic Myeloproliferative Disorders",
        "Leukemia",
        "Lymphoma",
        "Lymphoproliferative Disorder",
        "Multiple Myeloma and Plasma Cell Neoplasm",
        "Myelodysplastic Syndromes",
        "Myelodysplastic/Myeloproliferative Neoplasms",
        "Pain",
        "Precancerous Condition",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "methadone hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "morphine sulfate",
          "type": "DRUG"
        },
        {
          "name": "oxycodone hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 1,
      "start_date": "2009-03",
      "completion_date": "2010-10",
      "has_results": true,
      "last_update_posted_date": "2020-09-24",
      "last_synced_at": "2026-06-25T14:17:48.751Z",
      "location_count": 2,
      "location_summary": "Spartanburg, South Carolina • Houston, Texas",
      "locations": [
        {
          "city": "Spartanburg",
          "state": "South Carolina"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00726830"
    },
    {
      "nct_id": "NCT00045266",
      "title": "VEGF Trap in Treating Patients With Solid Tumors or Non-Hodgkin's Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Lymphoma",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "ziv-aflibercept",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Regeneron Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "25 Years to 120 Years"
      },
      "enrollment_count": null,
      "start_date": "2002-04",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2016-06-03",
      "last_synced_at": "2026-06-25T14:17:48.751Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00045266"
    },
    {
      "nct_id": "NCT03136146",
      "title": "Combination Chemotherapy in Treating Patients With Relapsed or Refractory Acute Lymphoblastic Leukemia, Lymphoblastic Lymphoma, Burkitt Lymphoma/Leukemia, or Double-Hit Lymphoma/Leukemia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Recurrent Acute Lymphoblastic Leukemia",
        "Recurrent Adult Lymphoblastic Lymphoma",
        "Recurrent Burkitt Leukemia",
        "Recurrent Burkitt Lymphoma",
        "Recurrent Childhood Lymphoblastic Lymphoma",
        "Recurrent High Grade B-Cell Lymphoma With MYC and BCL2 or BCL6 Rearrangements",
        "Refractory Acute Lymphoblastic Leukemia",
        "Refractory Burkitt Leukemia",
        "Refractory Burkitt Lymphoma",
        "Refractory High Grade B-Cell Lymphoma With MYC and BCL2 or BCL6 Rearrangements",
        "Refractory Lymphoblastic Lymphoma"
      ],
      "interventions": [
        {
          "name": "Bortezomib",
          "type": "DRUG"
        },
        {
          "name": "Clofarabine",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Ofatumumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pegfilgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Vincristine Sulfate Liposome",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "15 Years and older"
      },
      "enrollment_count": 42,
      "start_date": "2017-08-09",
      "completion_date": "2027-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-06-25T14:17:48.751Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03136146"
    },
    {
      "nct_id": "NCT01678443",
      "title": "Monoclonal Antibody Therapy Before Stem Cell Transplant in Treating Patients With Relapsed or Refractory Lymphoid Malignancies",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Adult Nasal Type Extranodal NK/T-cell Lymphoma",
        "Anaplastic Large Cell Lymphoma",
        "Angioimmunoblastic T-cell Lymphoma",
        "Cutaneous B-cell Non-Hodgkin Lymphoma",
        "Extranodal Marginal Zone B-cell Lymphoma of Mucosa-associated Lymphoid Tissue",
        "Hepatosplenic T-cell Lymphoma",
        "Intraocular Lymphoma",
        "Nodal Marginal Zone B-cell Lymphoma",
        "Noncutaneous Extranodal Lymphoma",
        "Peripheral T-cell Lymphoma",
        "Recurrent Adult Burkitt Lymphoma",
        "Recurrent Adult Diffuse Large Cell Lymphoma",
        "Recurrent Adult Diffuse Mixed Cell Lymphoma",
        "Recurrent Adult Diffuse Small Cleaved Cell Lymphoma",
        "Recurrent Adult Grade III Lymphomatoid Granulomatosis",
        "Recurrent Adult Hodgkin Lymphoma",
        "Recurrent Adult Immunoblastic Large Cell Lymphoma",
        "Recurrent Adult Lymphoblastic Lymphoma",
        "Recurrent Adult T-cell Leukemia/Lymphoma",
        "Recurrent Cutaneous T-cell Non-Hodgkin Lymphoma",
        "Recurrent Grade 1 Follicular Lymphoma",
        "Recurrent Grade 2 Follicular Lymphoma",
        "Recurrent Grade 3 Follicular Lymphoma",
        "Recurrent Mantle Cell Lymphoma",
        "Recurrent Marginal Zone Lymphoma",
        "Recurrent Mycosis Fungoides/Sezary Syndrome",
        "Recurrent Small Lymphocytic Lymphoma",
        "Refractory Hairy Cell Leukemia",
        "Small Intestine Lymphoma",
        "Splenic Marginal Zone Lymphoma",
        "T-cell Large Granular Lymphocyte Leukemia",
        "Testicular Lymphoma",
        "Waldenström Macroglobulinemia"
      ],
      "interventions": [
        {
          "name": "indium In 111 anti-CD45 monoclonal antibody BC8",
          "type": "BIOLOGICAL"
        },
        {
          "name": "yttrium Y 90 anti-CD45 monoclonal antibody BC8",
          "type": "RADIATION"
        },
        {
          "name": "peripheral blood stem cell transplantation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "RADIATION",
        "PROCEDURE"
      ],
      "sponsor": "Fred Hutchinson 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": 2,
      "start_date": "1999-09-01",
      "completion_date": "2018-09-27",
      "has_results": true,
      "last_update_posted_date": "2021-04-02",
      "last_synced_at": "2026-06-25T14:17:48.751Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01678443"
    },
    {
      "nct_id": "NCT00003913",
      "title": "Umbilical Cord Blood Transplantation in Treating Patients With Hematologic Cancer or Nonmalignant Hematologic Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia",
        "Lymphoma",
        "Myelodysplastic Syndromes",
        "Myelodysplastic/Myeloproliferative Diseases"
      ],
      "interventions": [
        {
          "name": "anti-thymocyte globulin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "busulfan",
          "type": "DRUG"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "umbilical cord blood transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "Up to 18 Years"
      },
      "enrollment_count": 390,
      "start_date": "1998-12",
      "completion_date": "2005-08",
      "has_results": false,
      "last_update_posted_date": "2010-04-02",
      "last_synced_at": "2026-06-25T14:17:48.751Z",
      "location_count": 23,
      "location_summary": "Duarte, California • Los Angeles, California • Orange, California + 18 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003913"
    },
    {
      "nct_id": "NCT00053196",
      "title": "Donor Stem Cell Transplant in Treating Patients With Relapsed Hematologic Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia",
        "Lymphoma",
        "Multiple Myeloma",
        "Plasma Cell Neoplasm",
        "Myelodysplastic Syndromes",
        "Myeloproliferative Neoplasms"
      ],
      "interventions": [
        {
          "name": "anti-thymocyte globulin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "G-CSF",
          "type": "BIOLOGICAL"
        },
        {
          "name": "busulfan",
          "type": "DRUG"
        },
        {
          "name": "fludarabine phosphate",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        },
        {
          "name": "mycophenolate mofetil",
          "type": "DRUG"
        },
        {
          "name": "tacrolimus",
          "type": "DRUG"
        },
        {
          "name": "allogeneic cell transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "allopurinol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "69 Years",
        "sex": "ALL",
        "summary": "Up to 69 Years"
      },
      "enrollment_count": 82,
      "start_date": "2002-12",
      "completion_date": "2010-08",
      "has_results": false,
      "last_update_posted_date": "2016-07-01",
      "last_synced_at": "2026-06-25T14:17:48.751Z",
      "location_count": 12,
      "location_summary": "La Jolla, California • Lewes, Delaware • Newark, Delaware + 9 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Lewes",
          "state": "Delaware"
        },
        {
          "city": "Newark",
          "state": "Delaware"
        },
        {
          "city": "Wilmington",
          "state": "Delaware"
        },
        {
          "city": "Elkton MD",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00053196"
    },
    {
      "nct_id": "NCT03677596",
      "title": "A Study Of Two Inotuzumab Ozogamicin Doses in Relapsed/ Refractory Acute Lymphoblastic Leukemia Transplant Eligible Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Leukemia",
        "Precursor b-Cell Lymphoblastic Leukemia-Lymphoma",
        "ACUTE LYMPHOBLASTIC LEUKEMIA"
      ],
      "interventions": [
        {
          "name": "inotuzumab ozogamicin-dose level 2",
          "type": "DRUG"
        },
        {
          "name": "Inotuzumab ozogamicin-dose level 1",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 102,
      "start_date": "2019-07-01",
      "completion_date": "2023-05-26",
      "has_results": true,
      "last_update_posted_date": "2023-11-22",
      "last_synced_at": "2026-06-25T14:17:48.751Z",
      "location_count": 7,
      "location_summary": "Los Angeles, California • Chicago, Illinois • Baltimore, Maryland + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03677596"
    },
    {
      "nct_id": "NCT00098566",
      "title": "Long-Term Effects of Iodine I Tositumomab and Autologous Bone Marrow or Stem Cell Transplantation in Patients With Relapsed or Refractory Non-Hodgkin's Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lymphoma",
        "Quality of Life"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Fred Hutchinson Cancer Center",
      "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": 36,
      "start_date": "2002-12",
      "completion_date": "2011-06",
      "has_results": false,
      "last_update_posted_date": "2015-10-14",
      "last_synced_at": "2026-06-25T14:17:48.751Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00098566"
    }
  ]
}