{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractory+B+Acute+Lymphoblastic+Leukemia&page=22",
    "query": {
      "condition": "Refractory B Acute Lymphoblastic Leukemia",
      "page": 22
    },
    "page_size": 10
  },
  "pagination": {
    "page": 22,
    "page_size": 10,
    "total_count": 606,
    "total_pages": 61,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractory+B+Acute+Lymphoblastic+Leukemia&page=23&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractory+B+Acute+Lymphoblastic+Leukemia&page=21&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-15T19:30:42.169Z",
  "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": "NCT02238522",
      "title": "Phase 1 Study Evaluating ZEN003365 in Relapsed/Refractory Lymphoproliferative Malignancies or Relapsed/Refractory AML",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Lymphoproliferative Malignancies",
        "Acute Myeloid Leukemia"
      ],
      "interventions": [
        {
          "name": "ZEN003365",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Zenith Epigenetics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2014-10",
      "completion_date": "2017-01",
      "has_results": false,
      "last_update_posted_date": "2014-11-13",
      "last_synced_at": "2026-11-15T19:30:42.169Z",
      "location_count": 4,
      "location_summary": "St Louis, Missouri • New York, New York • Springfield, Oregon + 1 more",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Springfield",
          "state": "Oregon"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02238522"
    },
    {
      "nct_id": "NCT05665530",
      "title": "A Study of PRT2527 as Monotherapy and in Combination With Zanubrutinib or Venetoclax in Participants With R/R Hematologic Malignancies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Aggressive B-Cell Non-Hodgkin's Lymphoma (NHL)",
        "Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (CLL/SLL)",
        "Mantle Cell Lymphoma (MCL)",
        "Richter's Syndrome",
        "T-cell Lymphoma",
        "Diffuse Large B-cell Lymphoma (DLBCL)",
        "Marginal Zone Lymphoma",
        "Myeloid Malignancies",
        "Acute Myeloid Leukemia (AML)",
        "Chronic Myelomonocytic Leukemia (CMML)",
        "Myelodysplastic Syndrome (MDS)",
        "MDS/Myeloproliferative Neoplasm (MPN) Overlap Syndrome"
      ],
      "interventions": [
        {
          "name": "PRT2527",
          "type": "DRUG"
        },
        {
          "name": "Zanubrutinib",
          "type": "DRUG"
        },
        {
          "name": "Venetoclax",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Prelude Therapeutics Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 86,
      "start_date": "2023-09-12",
      "completion_date": "2026-01-21",
      "has_results": false,
      "last_update_posted_date": "2026-01-26",
      "last_synced_at": "2026-11-15T19:30:42.169Z",
      "location_count": 5,
      "location_summary": "Duarte, California • Bethesda, Maryland • Boston, Massachusetts + 2 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05665530"
    },
    {
      "nct_id": "NCT00075478",
      "title": "Total-Body Irradiation With or Without Fludarabine Phosphate Followed By Donor Stem Cell Transplant in Treating Patients With Hematologic Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acute Lymphoblastic Leukemia in Remission",
        "Acute Myeloid Leukemia in Remission",
        "Aggressive Non-Hodgkin Lymphoma",
        "Chronic Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive",
        "Diffuse Large B-Cell Lymphoma",
        "Hematopoietic and Lymphoid Cell Neoplasm",
        "Indolent Non-Hodgkin Lymphoma",
        "Mantle Cell Lymphoma",
        "Myelodysplastic/Myeloproliferative Neoplasm",
        "Plasma Cell Myeloma",
        "Refractory Chronic Lymphocytic Leukemia",
        "Refractory Hodgkin Lymphoma",
        "Waldenstrom Macroglobulinemia"
      ],
      "interventions": [
        {
          "name": "Total-Body Irradiation",
          "type": "PROCEDURE"
        },
        {
          "name": "Fludarabine Phosphate",
          "type": "DRUG"
        },
        {
          "name": "Mycophenolate Mofetil",
          "type": "DRUG"
        },
        {
          "name": "Cyclosporine",
          "type": "DRUG"
        },
        {
          "name": "Peripheral Blood Stem Cell Transplantation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "Up to 75 Years"
      },
      "enrollment_count": 87,
      "start_date": "2003-10",
      "completion_date": "2014-02-02",
      "has_results": true,
      "last_update_posted_date": "2017-05-15",
      "last_synced_at": "2026-11-15T19:30:42.169Z",
      "location_count": 6,
      "location_summary": "Medford, Oregon • Salt Lake City, Utah • Seattle, Washington + 1 more",
      "locations": [
        {
          "city": "Medford",
          "state": "Oregon"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00075478"
    },
    {
      "nct_id": "NCT00045292",
      "title": "Valacyclovir in Preventing Cytomegalovirus Infection in Patients Who Are Undergoing Donor Stem Cell Transplantation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "acyclovir",
          "type": "DRUG"
        },
        {
          "name": "acyclovir sodium",
          "type": "DRUG"
        },
        {
          "name": "valacyclovir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": null,
      "start_date": "2002-04",
      "completion_date": "2004-10",
      "has_results": false,
      "last_update_posted_date": "2010-09-21",
      "last_synced_at": "2026-11-15T19:30:42.169Z",
      "location_count": 6,
      "location_summary": "Duarte, California • Stanford, California • Omaha, Nebraska + 3 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00045292"
    },
    {
      "nct_id": "NCT00005634",
      "title": "Suberoylanilide Hydroxamic Acid in Treating Patients With Advanced Solid Tumors That Have Not Responded to Previous Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Leukemia",
        "Lymphoma",
        "Multiple Myeloma and Plasma Cell Neoplasm",
        "Prostate Cancer",
        "Small Intestine Cancer",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "vorinostat",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Memorial Sloan Kettering 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": null,
      "start_date": "2000-01",
      "completion_date": "2002-10",
      "has_results": false,
      "last_update_posted_date": "2013-06-19",
      "last_synced_at": "2026-11-15T19:30:42.169Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005634"
    },
    {
      "nct_id": "NCT01925131",
      "title": "S1312, Inotuzumab Ozogamicin and Combination Chemotherapy in Treating Patients With Relapsed or Refractory Acute Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Acute Leukemias of Ambiguous Lineage",
        "B-cell Adult Acute Lymphoblastic Leukemia",
        "Philadelphia Chromosome Positive Adult Precursor Acute Lymphoblastic Leukemia",
        "Recurrent Adult Acute Lymphoblastic Leukemia",
        "Recurrent Adult Burkitt Lymphoma"
      ],
      "interventions": [
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "vincristine sulfate",
          "type": "DRUG"
        },
        {
          "name": "prednisone",
          "type": "DRUG"
        },
        {
          "name": "inotuzumab ozogamicin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "SWOG Cancer Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2014-06-13",
      "completion_date": "2023-01-01",
      "has_results": true,
      "last_update_posted_date": "2023-05-03",
      "last_synced_at": "2026-11-15T19:30:42.169Z",
      "location_count": 5,
      "location_summary": "Duarte, California • Palo Alto, California • Rochester, New York + 2 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Rochester",
          "state": "New York"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01925131"
    },
    {
      "nct_id": "NCT00002456",
      "title": "Graft-Versus-Host Disease Prevention in Treating Patients Who Are Undergoing Bone Marrow Transplantation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Graft Versus Host Disease",
        "Leukemia",
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "cyclosporine",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        },
        {
          "name": "allogeneic bone marrow transplantation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": null,
      "start_date": "1986-05",
      "completion_date": "2002-04",
      "has_results": false,
      "last_update_posted_date": "2011-11-30",
      "last_synced_at": "2026-11-15T19:30:42.169Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002456"
    },
    {
      "nct_id": "NCT00003196",
      "title": "Low-Dose Total Body Irradiation and Donor Peripheral Blood Stem Cell Transplant Followed by Donor Lymphocyte Infusion in Treating Patients With Non-Hodgkin Lymphoma, Chronic Lymphocytic Leukemia, or Multiple Myeloma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "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 Acute Lymphoblastic Leukemia",
        "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 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 Chronic Lymphocytic Leukemia",
        "Refractory Hairy Cell Leukemia",
        "Refractory Multiple Myeloma",
        "Small Intestine Lymphoma",
        "Splenic Marginal Zone Lymphoma",
        "Stage II Multiple Myeloma",
        "Stage III Multiple Myeloma",
        "Testicular Lymphoma",
        "Waldenström Macroglobulinemia"
      ],
      "interventions": [
        {
          "name": "chemotherapy",
          "type": "DRUG"
        },
        {
          "name": "total-body irradiation",
          "type": "RADIATION"
        },
        {
          "name": "peripheral blood stem cell transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "cyclosporine",
          "type": "DRUG"
        },
        {
          "name": "mycophenolate mofetil",
          "type": "DRUG"
        },
        {
          "name": "allogeneic hematopoietic stem cell transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "therapeutic allogeneic lymphocytes",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION",
        "PROCEDURE",
        "BIOLOGICAL"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "50 Years to 65 Years"
      },
      "enrollment_count": 63,
      "start_date": "1997-09",
      "completion_date": "2002-04",
      "has_results": false,
      "last_update_posted_date": "2019-12-27",
      "last_synced_at": "2026-11-15T19:30:42.169Z",
      "location_count": 3,
      "location_summary": "Duarte, California • Stanford, California • Seattle, Washington",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003196"
    },
    {
      "nct_id": "NCT00467961",
      "title": "Stem Cell Transplantation for Patients With Cancers of the Blood",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "CML (Chronic Myelogenous Leukemia)",
        "CLL (Chronic Lymphocytic Leukemia)",
        "AML (Acute Myelogenous Leukemia)",
        "Acute Lymphocytic Leukemia",
        "MDS (Myelodysplastic Syndrome)"
      ],
      "interventions": [
        {
          "name": "Miltenyi system",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 61,
      "start_date": "2007-04",
      "completion_date": "2012-11",
      "has_results": true,
      "last_update_posted_date": "2018-07-13",
      "last_synced_at": "2026-11-15T19:30:42.169Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00467961"
    },
    {
      "nct_id": "NCT03698552",
      "title": "ADCT-602 in Treating Patients With Recurrent or Refractory B-cell Acute Lymphoblastic Leukemia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Blasts 5 Percent or More of Bone Marrow Nucleated Cells",
        "CD22 Positive",
        "Philadelphia Chromosome Positive",
        "Recurrent B Acute Lymphoblastic Leukemia",
        "Refractory B Acute Lymphoblastic Leukemia"
      ],
      "interventions": [
        {
          "name": "ADCT-602",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "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": 37,
      "start_date": "2018-08-24",
      "completion_date": "2025-11-06",
      "has_results": false,
      "last_update_posted_date": "2025-12-12",
      "last_synced_at": "2026-11-15T19:30:42.169Z",
      "location_count": 2,
      "location_summary": "Monrovia, California • Houston, Texas",
      "locations": [
        {
          "city": "Monrovia",
          "state": "California"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03698552"
    }
  ]
}