{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Leukemia&page=5&q=relapsed+refractory",
    "query": {
      "q": "relapsed refractory",
      "condition": "Leukemia",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 1837,
    "total_pages": 184,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Leukemia&page=6&q=relapsed+refractory&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Leukemia&page=4&q=relapsed+refractory&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-08T15:22:19.093Z",
  "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": "NCT02993536",
      "title": "Clonal Evolution of B Cells in High-risk CLL After Idelalisib-rituximab",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Lymphocytic Leukemia"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2015-11",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2019-04-16",
      "last_synced_at": "2026-10-08T15:22:19.093Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02993536"
    },
    {
      "nct_id": "NCT04526795",
      "title": "Fludarabine, Cytarabine, and Pegcrisantaspase for the Treament of Relapsed or Refractory Leukemia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Blast Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive",
        "Recurrent Acute Biphenotypic Leukemia",
        "Recurrent Acute Lymphoblastic Leukemia",
        "Recurrent Acute Myeloid Leukemia",
        "Recurrent Chronic Myelogenous Leukemia, BCR-ABL1 Positive",
        "Recurrent T-Cell Prolymphocytic Leukemia",
        "Refractory Acute Biphenotypic Leukemia",
        "Refractory Acute Lymphoblastic Leukemia",
        "Refractory Acute Myeloid Leukemia",
        "Refractory Chronic Myelogenous Leukemia, BCR-ABL1 Positive",
        "Refractory T-Cell Prolymphocytic Leukemia"
      ],
      "interventions": [
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Pegcrisantaspase",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 19,
      "start_date": "2021-04-09",
      "completion_date": "2024-11-15",
      "has_results": false,
      "last_update_posted_date": "2024-12-12",
      "last_synced_at": "2026-10-08T15:22:19.093Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04526795"
    },
    {
      "nct_id": "NCT00860522",
      "title": "JVRS-100 for the Treatment of Patients With Relapsed or Refractory Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Leukemia"
      ],
      "interventions": [
        {
          "name": "JVRS-100",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Milton S. Hershey Medical Center",
      "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": "2009-03-01",
      "completion_date": "2017-02-20",
      "has_results": false,
      "last_update_posted_date": "2019-04-05",
      "last_synced_at": "2026-10-08T15:22:19.093Z",
      "location_count": 1,
      "location_summary": "Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00860522"
    },
    {
      "nct_id": "NCT03730012",
      "title": "A Study of ASP2215 (Gilteritinib) Combined With Atezolizumab in Patients With Relapsed or Treatment Refractory FMS-like Tyrosine Kinase (FLT3) Mutated Acute Myeloid Leukemia (AML)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Acute Myeloid Leukemia (AML)",
        "Acute Myeloid Leukemia With FMS-like Tyrosine Kinase (FLT3) Mutation"
      ],
      "interventions": [
        {
          "name": "gilteritinib",
          "type": "DRUG"
        },
        {
          "name": "atezolizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Astellas Pharma Global Development, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2019-06-19",
      "completion_date": "2021-06-15",
      "has_results": true,
      "last_update_posted_date": "2024-11-29",
      "last_synced_at": "2026-10-08T15:22:19.093Z",
      "location_count": 12,
      "location_summary": "Los Angeles, California • Chicago, Illinois • Lexington, Kentucky + 7 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03730012"
    },
    {
      "nct_id": "NCT00295841",
      "title": "Cytarabine and Clofarabine in Treating Patients With Refractory or Relapsed Acute Myeloid Leukemia or Acute Lymphoblastic Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Leukemia"
      ],
      "interventions": [
        {
          "name": "clofarabine",
          "type": "DRUG"
        },
        {
          "name": "cytarabine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "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": 53,
      "start_date": "2005-02",
      "completion_date": "2015-01-07",
      "has_results": false,
      "last_update_posted_date": "2018-08-10",
      "last_synced_at": "2026-10-08T15:22:19.093Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00295841"
    },
    {
      "nct_id": "NCT00939653",
      "title": "T2007-002 Clofarabine, Etoposide, Cyclophosphamide in Relapsed Acute Myelogenous Leukemia (AML)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Relapsed Acute Myelogenous Leukemia"
      ],
      "interventions": [
        {
          "name": "Clofarabine",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Filgrastim",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "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": "2009-07-10",
      "completion_date": "2011-07-15",
      "has_results": true,
      "last_update_posted_date": "2020-02-19",
      "last_synced_at": "2026-10-08T15:22:19.093Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • Miami, Florida • Chicago, Illinois + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00939653"
    },
    {
      "nct_id": "NCT04188405",
      "title": "Decitabine, Venetoclax, and Ponatinib for the Treatment of Philadelphia Chromosome-Positive Acute Myeloid Leukemia or Myeloid Blast Phase or Accelerated Phase Chronic Myelogenous Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Accelerated Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive",
        "Acute Myeloid Leukemia",
        "Blast Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive",
        "Recurrent Acute Myeloid Leukemia",
        "Recurrent Chronic Myelogenous Leukemia, BCR-ABL1 Positive",
        "Refractory Acute Myeloid Leukemia",
        "Refractory Chronic Myelogenous Leukemia, BCR-ABL1 Positive"
      ],
      "interventions": [
        {
          "name": "Decitabine",
          "type": "DRUG"
        },
        {
          "name": "Ponatinib",
          "type": "DRUG"
        },
        {
          "name": "Venetoclax",
          "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": 20,
      "start_date": "2020-05-17",
      "completion_date": "2026-06-02",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-10-08T15:22:19.093Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04188405"
    },
    {
      "nct_id": "NCT04815356",
      "title": "Phase I Study of Anti-CD22 Chimeric Receptor T Cells in Patients With Relapsed/Refractory Hairy Cell Leukemia and Variant",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hairy Cell Leukemia",
        "Hairy Cell Leukemia Variant"
      ],
      "interventions": [
        {
          "name": "CD22CART cell infusion",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 27,
      "start_date": "2022-05-23",
      "completion_date": "2036-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-16",
      "last_synced_at": "2026-10-08T15:22:19.093Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04815356"
    },
    {
      "nct_id": "NCT02395822",
      "title": "MT2014-25: Haplo NK With SQ IL-15 in Adult Relapsed or Refractory AML Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Myelogenous Leukemia"
      ],
      "interventions": [
        {
          "name": "IL-15",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Masonic Cancer Center, University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 17,
      "start_date": "2015-10-01",
      "completion_date": "2016-12-01",
      "has_results": true,
      "last_update_posted_date": "2018-02-20",
      "last_synced_at": "2026-10-08T15:22:19.093Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02395822"
    },
    {
      "nct_id": "NCT03642626",
      "title": "MT2017-45: CAR-T Cell Therapy for Heme Malignancies",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Lymphoblastic Leukemia",
        "Large B-cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "KYMRIAH",
          "type": "DRUG"
        },
        {
          "name": "YESCARTA",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine 30mg/m2 4 doses",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide 500 mg/m2; 2 doses",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine 30mg/m2 3 doses",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide 500 mg/m2; 3 doses",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine 25mg/m2 3 days",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide 250 mg/m2; 3 days",
          "type": "DRUG"
        },
        {
          "name": "Tecartus",
          "type": "DRUG"
        },
        {
          "name": "Abecma, Intravenous Suspension",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide 900 mg/m2; 1 day",
          "type": "DRUG"
        },
        {
          "name": "Breyanzi Injectable Product",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Masonic Cancer Center, University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 150,
      "start_date": "2018-12-18",
      "completion_date": "2028-06-01",
      "has_results": true,
      "last_update_posted_date": "2026-01-23",
      "last_synced_at": "2026-10-08T15:22:19.093Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03642626"
    }
  ]
}