{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=O6-Benzylguanine&page=2",
    "query": {
      "intervention": "O6-Benzylguanine",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 32,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=O6-Benzylguanine&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=O6-Benzylguanine&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-01T13:51:36.432Z",
  "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": "NCT00003765",
      "title": "O6-benzylguanine and Carmustine in Treating Children With Refractory CNS Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Brain and Central Nervous System Tumors"
      ],
      "interventions": [
        {
          "name": "O6-benzylguanine",
          "type": "DRUG"
        },
        {
          "name": "carmustine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 36,
      "start_date": "1999-05",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-02-05",
      "last_synced_at": "2026-10-01T13:51:36.432Z",
      "location_count": 51,
      "location_summary": "Little Rock, Arkansas • La Jolla, California • Los Angeles, California + 40 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003765"
    },
    {
      "nct_id": "NCT00005961",
      "title": "O6-benzylguanine and Carmustine in Treating Patients With Unresectable Locally Recurrent or Metastatic Melanoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Melanoma (Skin)"
      ],
      "interventions": [
        {
          "name": "O6-benzylguanine",
          "type": "DRUG"
        },
        {
          "name": "carmustine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 40,
      "start_date": "2000-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-02-11",
      "last_synced_at": "2026-10-01T13:51:36.432Z",
      "location_count": 13,
      "location_summary": "Chicago, Illinois • Decatur, Illinois • Evanston, Illinois + 8 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Decatur",
          "state": "Illinois"
        },
        {
          "city": "Evanston",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005961"
    },
    {
      "nct_id": "NCT00002604",
      "title": "O(6)-Benzylguanine and Carmustine in Treating Patients With Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "O6-benzylguanine",
          "type": "DRUG"
        },
        {
          "name": "carmustine",
          "type": "DRUG"
        },
        {
          "name": "chemosensitization/potentiation therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Case Comprehensive 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": 28,
      "start_date": "1996-01",
      "completion_date": "2004-02",
      "has_results": false,
      "last_update_posted_date": "2010-07-08",
      "last_synced_at": "2026-10-01T13:51:36.432Z",
      "location_count": 2,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002604"
    },
    {
      "nct_id": "NCT01269424",
      "title": "BG & TMZ Therapy of Glioblastoma Multiforme",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Glioblastoma Multiforme"
      ],
      "interventions": [
        {
          "name": "MGMTP140K-encoding retroviral vector",
          "type": "BIOLOGICAL"
        },
        {
          "name": "O6-benzylguanine",
          "type": "DRUG"
        },
        {
          "name": "temozolomide",
          "type": "DRUG"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "autologous hematopoietic stem cell transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "in vitro-treated peripheral blood stem cell transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "radiation therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "OTHER",
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "Stanton Gerson MD",
      "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": 10,
      "start_date": "2011-11-22",
      "completion_date": "2022-09-26",
      "has_results": false,
      "last_update_posted_date": "2023-03-02",
      "last_synced_at": "2026-10-01T13:51:36.432Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01269424"
    },
    {
      "nct_id": "NCT00003766",
      "title": "O6-benzylguanine Followed by Surgery in Treating Patients With Solid Tumors That Can Be Removed During Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "O6-benzylguanine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 25,
      "start_date": "1999-10",
      "completion_date": "2001-11",
      "has_results": false,
      "last_update_posted_date": "2014-03-06",
      "last_synced_at": "2026-10-01T13:51:36.432Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003766"
    },
    {
      "nct_id": "NCT02343666",
      "title": "HIV-Resistant Gene Modified Stem Cells and Chemotherapy in Treating Patients With Lymphoma With HIV Infection",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Human Immunodeficiency Virus 1 Positive",
        "Stage I Adult Hodgkin Lymphoma",
        "Stage I Adult Non-Hodgkin Lymphoma",
        "Stage II Adult Hodgkin Lymphoma",
        "Stage II Adult Non-Hodgkin Lymphoma",
        "Stage III Adult Hodgkin Lymphoma",
        "Stage III Adult Non-Hodgkin Lymphoma",
        "Stage IV Adult Hodgkin Lymphoma",
        "Stage IV Adult Non-Hodgkin Lymphoma"
      ],
      "interventions": [
        {
          "name": "C46/CCR5/P140K Lentiviral Vector-transduced Autologous HSPCs",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Carmustine",
          "type": "DRUG"
        },
        {
          "name": "Filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "O6-Benzylguanine",
          "type": "DRUG"
        },
        {
          "name": "Plerixafor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "66 Years",
        "sex": "ALL",
        "summary": "18 Years to 66 Years"
      },
      "enrollment_count": 0,
      "start_date": "2016-08-15",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2018-11-20",
      "last_synced_at": "2026-10-01T13:51:36.432Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02343666"
    },
    {
      "nct_id": "NCT00003613",
      "title": "O6-benzylguanine and Carmustine in Treating Patients With Stage IA-IIA Cutaneous T-cell Lymphoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Recurrent Cutaneous T-cell Non-Hodgkin Lymphoma",
        "Stage I Cutaneous T-cell Non-Hodgkin Lymphoma",
        "Stage II Cutaneous T-cell Non-Hodgkin Lymphoma"
      ],
      "interventions": [
        {
          "name": "O6-benzylguanine",
          "type": "DRUG"
        },
        {
          "name": "carmustine",
          "type": "DRUG"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "1999-04",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-01-11",
      "last_synced_at": "2026-10-01T13:51:36.432Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003613"
    },
    {
      "nct_id": "NCT00006474",
      "title": "Temozolomide and O6-benzylguanine in Treating Patients With Newly Diagnosed, Recurrent, or Progressive Anaplastic Glioma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Brain and Central Nervous System Tumors"
      ],
      "interventions": [
        {
          "name": "O6-benzylguanine",
          "type": "DRUG"
        },
        {
          "name": "temozolomide",
          "type": "DRUG"
        },
        {
          "name": "conventional surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Duke University",
      "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": "2001-03",
      "completion_date": "2004-08",
      "has_results": false,
      "last_update_posted_date": "2013-06-20",
      "last_synced_at": "2026-10-01T13:51:36.432Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006474"
    },
    {
      "nct_id": "NCT00005981",
      "title": "Combination Chemotherapy in Treating Patients With Metastatic Colorectal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "O6-benzylguanine",
          "type": "DRUG"
        },
        {
          "name": "carmustine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Case Comprehensive 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": 13,
      "start_date": "2000-06",
      "completion_date": "2003-11",
      "has_results": false,
      "last_update_posted_date": "2010-06-10",
      "last_synced_at": "2026-10-01T13:51:36.432Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005981"
    },
    {
      "nct_id": "NCT00613093",
      "title": "Ph. II Temozolomide + O6-BG in Treatment of Pts w Temozolomide-Resistant Malignant Glioma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Glioblastoma Multiforme",
        "Anaplastic Glioma"
      ],
      "interventions": [
        {
          "name": "Temodar and O6-Benzylguanine (BG)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 67,
      "start_date": "2002-10",
      "completion_date": "2008-08",
      "has_results": false,
      "last_update_posted_date": "2014-07-09",
      "last_synced_at": "2026-10-01T13:51:36.432Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00613093"
    }
  ]
}