{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractory+CLL&page=4",
    "query": {
      "condition": "Refractory CLL",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 812,
    "total_pages": 82,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractory+CLL&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractory+CLL&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-29T21:01:36.539Z",
  "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": "NCT00005854",
      "title": "Bone Marrow Transplantation in Treating Patients With Hematologic Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia",
        "Lymphoma",
        "Multiple Myeloma and Plasma Cell Neoplasm",
        "Myelodysplastic Syndromes"
      ],
      "interventions": [
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "cyclosporine",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        },
        {
          "name": "allogeneic bone marrow transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "in vitro-treated bone marrow transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "Up to 50 Years"
      },
      "enrollment_count": null,
      "start_date": "1999-12",
      "completion_date": "2000-10",
      "has_results": false,
      "last_update_posted_date": "2011-11-30",
      "last_synced_at": "2026-10-29T21:01:36.539Z",
      "location_count": 4,
      "location_summary": "Baltimore, Maryland • Worcester, Massachusetts • Columbia, South Carolina + 1 more",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Worcester",
          "state": "Massachusetts"
        },
        {
          "city": "Columbia",
          "state": "South Carolina"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005854"
    },
    {
      "nct_id": "NCT05400122",
      "title": "Natural Killer (NK) Cells in Combination With Interleukin-2 (IL-2) and Transforming Growth Factor Beta (TGFbeta) Receptor I Inhibitor Vactosertib in Cancer",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Colorectal Cancer",
        "Hematologic Malignancy",
        "Rectum Cancer",
        "Acute Myeloid Leukemia",
        "Myelodysplastic Syndromes",
        "Acute Lymphoblastic Leukemia",
        "Chronic Myeloid Leukemia",
        "Chronic Lymphocytic Leukemia",
        "Hodgkin Lymphoma",
        "Non Hodgkin Lymphoma",
        "Myeloproliferative Syndrome",
        "Plasma Cell Myeloma",
        "Gastric Cancer",
        "Esophageal Cancer",
        "Esophagus Cancer",
        "Gastric Cancer, Metastatic",
        "Unresectable Esophageal Cancer",
        "Metastatic Esophageal Cancer"
      ],
      "interventions": [
        {
          "name": "Vactosertib",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine Phosphate",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "IL-2",
          "type": "DRUG"
        },
        {
          "name": "Natural Killer Cells",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "David Wald",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2022-09-09",
      "completion_date": "2027-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-14",
      "last_synced_at": "2026-10-29T21:01:36.539Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05400122"
    },
    {
      "nct_id": "NCT00457860",
      "title": "Safety Study of CAT-8015 Immunotoxin in Patients With CLL, PLL or SLL With Advance Disease",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Leukemia"
      ],
      "interventions": [
        {
          "name": "Immunotoxin therapy",
          "type": "DRUG"
        },
        {
          "name": "CAT-8015 immunotoxin",
          "type": "DRUG"
        },
        {
          "name": "Biological therapy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Cambridge Antibody Technology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2007-03",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2007-04-17",
      "last_synced_at": "2026-10-29T21:01:36.539Z",
      "location_count": 3,
      "location_summary": "Beverly Hills, California • Indianapolis, Indiana • Bethesda, Maryland",
      "locations": [
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00457860"
    },
    {
      "nct_id": "NCT02846623",
      "title": "Atezolizumab, Obinutuzumab, and Venetoclax in Treating Patients With Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma, or Relapsed or Refractory Richter Syndrome",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Lymphocytic Leukemia",
        "Recurrent Transformed Chronic Lymphocytic Leukemia",
        "Refractory Transformed Chronic Lymphocytic Leukemia",
        "Richter Syndrome",
        "Small Lymphocytic Lymphoma"
      ],
      "interventions": [
        {
          "name": "Atezolizumab",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Obinutuzumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Venetoclax",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "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": 50,
      "start_date": "2017-01-31",
      "completion_date": "2027-02-28",
      "has_results": false,
      "last_update_posted_date": "2026-08-10",
      "last_synced_at": "2026-10-29T21:01:36.539Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02846623"
    },
    {
      "nct_id": "NCT00309842",
      "title": "Myeloablative Umbilical Cord Blood Transplantation in Hematological Diseases",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Myeloid Leukemia",
        "Acute Lymphocytic Leukemia",
        "Chronic Myelogenous Leukemia",
        "Myelofibrosis",
        "MDS",
        "Refractory Anemia",
        "Chronic Lymphocytic Leukemia",
        "Prolymphocytic Leukemia",
        "Non-Hodgkin's Lymphoma",
        "Leukemia",
        "Lymphoma",
        "Multiple Myeloma",
        "Myelodysplastic Syndromes"
      ],
      "interventions": [
        {
          "name": "filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "cyclosporine",
          "type": "DRUG"
        },
        {
          "name": "fludarabine phosphate",
          "type": "DRUG"
        },
        {
          "name": "mycophenolate mofetil",
          "type": "DRUG"
        },
        {
          "name": "umbilical cord blood transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "total-body irradiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "Masonic Cancer Center, University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "Up to 55 Years"
      },
      "enrollment_count": 213,
      "start_date": "2005-07-28",
      "completion_date": "2019-11-22",
      "has_results": true,
      "last_update_posted_date": "2020-09-10",
      "last_synced_at": "2026-10-29T21:01:36.539Z",
      "location_count": 2,
      "location_summary": "Minneapolis, Minnesota • Seattle, Washington",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00309842"
    },
    {
      "nct_id": "NCT00185679",
      "title": "Haploid Allogeneic Transplant Using the CliniMACS System",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Myelogenous Leukemia (AML) - Relapsed, Primary Refractory Disease or Poor Risk Factors",
        "Chronic Myelogenous Leukemia (CML) - Accelerated or Second Chronic Phase",
        "Myelodysplastic Syndrome (MDS) - High and Intermediate Risk",
        "Non-Hodgkin's Lymphoma (NHL)",
        "Chronic Lymphocytic Leukemia (CLL) - Refractory"
      ],
      "interventions": [
        {
          "name": "CliniMACS System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Ginna Laport",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 13,
      "start_date": "2001-11",
      "completion_date": "2010-02",
      "has_results": true,
      "last_update_posted_date": "2015-03-09",
      "last_synced_at": "2026-10-29T21:01:36.539Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00185679"
    },
    {
      "nct_id": "NCT00290810",
      "title": "Bevacizumab in Treating Patients With Relapsed or Refractory Chronic Lymphocytic Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "B-cell Chronic Lymphocytic Leukemia",
        "Refractory Chronic Lymphocytic Leukemia"
      ],
      "interventions": [
        {
          "name": "bevacizumab",
          "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": 12,
      "start_date": "2005-12",
      "completion_date": "2010-08",
      "has_results": true,
      "last_update_posted_date": "2014-05-09",
      "last_synced_at": "2026-10-29T21:01:36.539Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00290810"
    },
    {
      "nct_id": "NCT00003245",
      "title": "Irinotecan in Treating Patients With Recurrent or Refractory Non-Hodgkin's Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "irinotecan hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "15 Years to 75 Years"
      },
      "enrollment_count": 50,
      "start_date": "1998-02-18",
      "completion_date": "2004-07-30",
      "has_results": false,
      "last_update_posted_date": "2018-11-15",
      "last_synced_at": "2026-10-29T21:01:36.539Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003245"
    },
    {
      "nct_id": "NCT00052572",
      "title": "Ixabepilone in Treating Patients With Relapsed or Refractory Lymphoproliferative Disorders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia",
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "ixabepilone",
          "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": 35,
      "start_date": "2002-10",
      "completion_date": "2007-07",
      "has_results": false,
      "last_update_posted_date": "2013-06-24",
      "last_synced_at": "2026-10-29T21:01:36.539Z",
      "location_count": 2,
      "location_summary": "New York, New York • Burlington, Vermont",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00052572"
    },
    {
      "nct_id": "NCT00003451",
      "title": "Interleukin-12 Followed by Interferon Alfa in Treating Patients With Advanced Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Chronic Myeloproliferative Disorders",
        "Leukemia",
        "Lymphoma",
        "Multiple Myeloma and Plasma Cell Neoplasm",
        "Myelodysplastic Syndromes",
        "Precancerous Condition",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "recombinant interferon alfa",
          "type": "BIOLOGICAL"
        },
        {
          "name": "recombinant interleukin-12",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "13 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "1998-08",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-02-01",
      "last_synced_at": "2026-10-29T21:01:36.539Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003451"
    }
  ]
}