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O6-Benzylguanine Followed by Surgery in Treating Patients With Solid Tumors That Can Be Removed During Surgery

This study has been completed.

Sponsors and Collaborators: University of Chicago
National Cancer Institute (NCI)
Information provided by: National Cancer Institute (NCI)
ClinicalTrials.gov Identifier: NCT00003766
  Purpose

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Giving a chemotherapy drug before surgery may shrink the tumor so that it can be removed during surgery.

PURPOSE: Phase II trial to study the effectiveness of O6-benzylguanine followed by surgery in treating patients who have solid tumors that can be removed during surgery.


Condition Intervention Phase
Unspecified Adult Solid Tumor, Protocol Specific
Drug: O6-benzylguanine
Phase II

MedlinePlus related topics:   Cancer   

ChemIDplus related topics:   O(6)-Benzylguanine   

U.S. FDA Resources

Study Type:   Interventional
Study Design:   Treatment
Official Title:   Determination of Optimal O6-Benzylguanine Dose to Achieve O6-Alkylguanine-DNA Alkyltransferase Depletion in Patients With Surgically Resectable Solid Tumors

Further study details as provided by National Cancer Institute (NCI):

Study Start Date:   October 1999

Detailed Description:

OBJECTIVES: I. Determine the minimal O6-benzylguanine (O6-BG) dose required to deplete tumor activity to less than 10 fmol/mg protein at a specified time after administration in patients with surgically resectable solid tumors. II. Correlate tumor tissue AGT depletion with AGT depletion in peripheral blood mononuclear cells (PBMC) obtained at a specified time after O6-BG administration in these patients.

OUTLINE: This is a dose escalation study. Patients receive a single dose of O6-benzylguanine (O6-BG) IV over 1 hour at one of two dose levels. Patients undergo surgery 16-20 hours after administration of O6-BG. Up to 13 patients receive the lower dose level of O6-BG. If more than 3 patients have detectable AGT levels, additional patients receive the higher dose. The optimal biologic dose (OBD) is defined as the lowest dose level at which at least 11 of 13 patients have AGT activity less than 10 fmol/mg protein after O6-BG dosing. Patients are followed at 1 and 3 weeks post surgery.

PROJECTED ACCRUAL: A total of 13-26 patients will be accrued for this study over approximately 10 months.

  Eligibility
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Criteria

DISEASE CHARACTERISTICS: Histologically or cytologically confirmed surgically resectable solid tumor

PATIENT CHARACTERISTICS: Age: Not specified Performance status: CALGB 0-2 Life expectancy: Not specified Hematopoietic: Not specified Hepatic: Bilirubin no greater than 1.5 times upper limit of normal (ULN) Renal: Creatinine no greater than 1.5 times ULN Other: Not pregnant or nursing Medically cleared for surgery No active medical or psychiatric disease that would prevent compliance

PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: No prior chemotherapy Endocrine therapy: Not specified Radiotherapy: No prior radiotherapy Surgery: Not specified

  Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00003766

Locations
United States, Illinois
University of Chicago Cancer Research Center    
      Chicago, Illinois, United States, 60637-1470

Sponsors and Collaborators
University of Chicago
National Cancer Institute (NCI)

Investigators
Study Chair:     Mark J. Ratain, MD     University of Chicago    
  More Information


Clinical trial summary from the National Cancer Institute's PDQ® database  This link exits the ClinicalTrials.gov site
 

Study ID Numbers:   CDR0000066892, UCCRC-9523, NCI-T98-0038
First Received:   November 1, 1999
Last Updated:   July 23, 2008
ClinicalTrials.gov Identifier:   NCT00003766
Health Authority:   United States: Federal Government

Keywords provided by National Cancer Institute (NCI):
unspecified adult solid tumor, protocol specific  

Study placed in the following topic categories:
O(6)-benzylguanine

Additional relevant MeSH terms:
Molecular Mechanisms of Pharmacological Action
Antineoplastic Agents
Therapeutic Uses
Enzyme Inhibitors
Pharmacologic Actions

ClinicalTrials.gov processed this record on September 16, 2008




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