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Trial record 13 of 29 for:    "Teratoma" | "Antineoplastic Agents, Alkylating"

Temozolomide and O6-benzylguanine in Treating Children With Solid Tumors

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00020150
Recruitment Status : Completed
First Posted : January 27, 2003
Last Update Posted : April 29, 2015
Information provided by:
National Cancer Institute (NCI)

Tracking Information
First Submitted Date  ICMJE July 11, 2001
First Posted Date  ICMJE January 27, 2003
Last Update Posted Date April 29, 2015
Study Start Date  ICMJE June 2000
Primary Completion Date Not Provided
Current Primary Outcome Measures  ICMJE Not Provided
Original Primary Outcome Measures  ICMJE Not Provided
Change History Complete list of historical versions of study NCT00020150 on Archive Site
Current Secondary Outcome Measures  ICMJE Not Provided
Original Secondary Outcome Measures  ICMJE Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
Descriptive Information
Brief Title  ICMJE Temozolomide and O6-benzylguanine in Treating Children With Solid Tumors
Official Title  ICMJE Phase I Trial and Pharmacokinetic Study of Temozolomide and O6-Benzylguanine in Childhood Solid Tumors
Brief Summary

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug may kill more tumor cells.

PURPOSE: Phase I trial to study the effectiveness of combining temozolomide and O6-benzylguanine in treating children who have solid tumors that have not responded to previous therapy.

Detailed Description


  • Determine the maximum tolerated dose of temozolomide administered with a biologically active dose of O6-benzylguanine (O6-BG) in children with refractory solid tumors.
  • Determine the dose-limiting toxicity and the toxicity profile of this combination in these patients.
  • Assess the plasma pharmacokinetics of O6-BG and its active metabolite, 8-oxo-O6-BG, in these patients.
  • Assess the plasma pharmacokinetics of this combination in these patients.
  • Correlate levels of alanine-glyoxylate aminotransferase in peripheral blood mononuclear cells with the degree of hematologic toxicity of this combination in these patients.

OUTLINE: This is a dose-escalation study.

Patients receive O6-benzylguanine (O6-BG) IV over 1 hour followed 30 minutes later by oral temozolomide daily for 5 days. Treatment continues every 28 days for up to 12 courses in the absence of unacceptable toxicity or disease progression.

Sequential dose escalation of O6-BG is followed by sequential dose escalation of temozolomide. Cohorts of 3-6 patients receive escalating doses of O6-BG and temozolomide until the maximum tolerated dose (MTD) of each is determined. The MTD is defined as the dose preceding that at which at least 2 of 3 or 6 patients experience dose-limiting toxicity.

Quality of life is assessed at baseline and prior to courses 1, 3, 6, 8, and 12.

PROJECTED ACCRUAL: A total of 21-48 patients will be accrued for this study within 1-2 years.

Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 1
Study Design  ICMJE Primary Purpose: Treatment
Condition  ICMJE
  • Brain and Central Nervous System Tumors
  • Childhood Germ Cell Tumor
  • Extragonadal Germ Cell Tumor
  • Kidney Cancer
  • Liver Cancer
  • Neuroblastoma
  • Ovarian Cancer
  • Sarcoma
  • Unspecified Childhood Solid Tumor, Protocol Specific
Intervention  ICMJE
  • Drug: O6-benzylguanine
  • Drug: temozolomide
Study Arms  ICMJE Not Provided
Publications *

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Recruitment Information
Recruitment Status  ICMJE Completed
Enrollment  ICMJE Not Provided
Original Enrollment  ICMJE Not Provided
Study Completion Date  ICMJE Not Provided
Primary Completion Date Not Provided
Eligibility Criteria  ICMJE


  • Histologically confirmed solid tumor refractory to standard therapy and for which no potentially curative therapy exists, including, but not limited to:

    • Rhabdomyosarcoma and other soft tissue sarcomas
    • Ewing's family of tumors
    • Osteosarcoma
    • Neuroblastoma
    • Wilms' tumor
    • Hepatic tumors
    • Germ cell tumors
    • Primary brain tumor
  • Histological confirmation may be waived for brainstem or optic gliomas
  • Measurable or evaluable disease
  • Evidence of progressive disease on prior chemotherapy or radiotherapy or persistent disease after prior surgery



  • 21 and under

Performance status:

  • ECOG 0-2

Life expectancy:

  • At least 8 weeks


  • Absolute granulocyte count greater than 1,500/mm^3
  • Hemoglobin greater than 8 g/dL
  • Platelet count greater than 100,000/mm^3


  • Bilirubin normal
  • SGPT less than 2 times upper limit of normal
  • No significant hepatic dysfunction


  • Creatinine normal OR
  • Creatinine clearance at least 60 mL/min


  • No significant cardiac dysfunction


  • No significant pulmonary dysfunction


  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception
  • Able to swallow capsules
  • No significant unrelated systemic illness that would preclude study (e.g., serious infections or organ dysfunction)
  • No prior hypersensitivity to dacarbazine, temozolomide, or polyethylene glycol


Biologic therapy:

  • At least 1 week since prior colony-stimulating factors (e.g., filgrastim [G- CSF], sargramostim [GM-CSF], or epoetin alfa)
  • At least 4 months since prior myeloablative therapy requiring bone marrow or stem cell transplantation
  • No concurrent anticancer immunotherapy


  • See Disease Characteristics
  • At least 3 weeks since prior chemotherapy (4 weeks for nitrosoureas) and recovered
  • Prior temozolomide allowed provided not administered within past 3 months, no severe toxicities experienced during prior course, and not given in combination with other agents designed to inactivate alanine-glyoxylate aminotransferase
  • No other concurrent investigational or standard anticancer chemotherapy

Endocrine therapy:

  • Concurrent corticosteroids for control of brain tumor-associated edema allowed provided on stable or decreasing dose for at least 1 week prior to study


  • See Disease Characteristics
  • At least 4 weeks since prior limited-field radiotherapy
  • At least 4 months since prior craniospinal irradiation, total body irradiation, or radiotherapy to more than half of the pelvis
  • Recovered from prior radiotherapy
  • No concurrent anticancer radiotherapy


  • See Disease Characteristics


  • At least 4 weeks since other prior investigational therapy and recovered
  • No other concurrent anticancer investigational agents
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE up to 21 Years   (Child, Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE United States
Removed Location Countries  
Administrative Information
NCT Number  ICMJE NCT00020150
Other Study ID Numbers  ICMJE CDR0000067880
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Not Provided
Study Sponsor  ICMJE National Cancer Institute (NCI)
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Study Chair: Katherine Warren, MD National Cancer Institute (NCI)
PRS Account National Cancer Institute (NCI)
Verification Date August 2004

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP