O6-Benzylguanine-Mediated Tumor Sensitization With Chemoprotected Autologous Stem Cell in Treating Patients With Malignant Gliomas

April 29, 2022 updated by: Fred Hutchinson Cancer Center

Benzylguanine-Mediated Tumor Sensitization With Chemoprotected Autologous Stem Cells for Patients With Malignant Gliomas

This phase I/II trial studies the side effects and best dose of temozolomide when given together with radiation therapy, carmustine, O6-benzylguanine, and patients' own stem cell (autologous) transplant in treating patients with newly diagnosed glioblastoma multiforme or gliosarcoma. Giving chemotherapy, such as temozolomide, carmustine, and O6-benzylguanine, and radiation therapy before a peripheral stem cell transplant stops the growth of cancer cells by stopping them from dividing or killing them. Giving colony-stimulating factors, such as filgrastim or plerixafor, and certain chemotherapy drugs, helps stem cells move from the bone marrow to the blood so they can be collected and stored. Chemotherapy or radiation therapy is then given to prepare the bone marrow for the stem cell transplant. The stem cells are then returned to the patient to replace the blood-forming cells that were destroyed by the chemotherapy and radiation therapy.

Study Overview

Detailed Description

PRIMARY OBJECTIVES:

I. Determine the safety and feasibility of infusing autologous granulocyte colony-stimulating factor (G-CSF) (filgrastim) mobilized stem cells transduced with a Phoenix-gibbon ape leukemia virus (GALV)-pseudotype vector expressing methylguanine methyltransferase (MGMT) (P140K).

II. Define the dose of BCNU (carmustine) that results in efficient engraftment of gene modified cells when given with peripheral blood stem cell support.

SECONDARY OBJECTIVES:

I. Determine the engraftment of gene-modified cells after conditioning with BCNU.

II. Determine the ability to select gene-modified cells in vivo with this regimen.

III. Evaluate the molecular and clonal composition of gene-modified cells after chemotherapy with temozolomide.

IV. Observe patients for clinical anti-tumor response.

V. Determine the correlation of the level of MGMT (P140K) marking with toxicity, temozolomide dose achieved, and response.

VI. Characterize the toxicity associated with this regimen.

OUTLINE: This is a phase I, dose-escalation study of temozolomide followed by a phase II study.

PART I: Within 35 days of surgery, patients undergo 3 dimensional (3D) conformal intensity-modulated radiation therapy (IMRT) or proton beam radiation therapy daily 5 days per week for 6 weeks. Patients receive filgrastim subcutaneously (SC) on days -7 to -3 and begin stem cell collection on the 4th day of filgrastim administration (up to 3 apheresis). Patients may also receive plerixafor SC on days -5 to -3. The CD34+ stem cells are separated from the patient's stem cells and they are transduced with Phoenix-RD114 pseudotype vector (retrovirus). One day after apheresis is completed, patients receive carmustine intravenously (IV) over 3 hours followed 2 hours later by temozolomide orally (PO). At least twenty-four hours after completion of carmustine and temozolomide, patients undergo reinfusion of genetically-modified stem cells.

PART II: Beginning approximately 4 weeks after completion of Phase 1 of the study, patients receive O6-benzylguanine IV continuously over 48 hours followed by temozolomide PO within 1 hour. Treatment may repeat at least every 28 days for a total of 24 courses in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed every 1-3 months for 2 years, every 3-6 months for 3 years, and then annually thereafter for 10 years.

Study Type

Interventional

Enrollment (Actual)

12

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Washington
      • Seattle, Washington, United States, 98109
        • Fred Hutch/University of Washington Cancer Consortium

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients with glioblastoma multiforme or gliosarcoma
  • The patient or legal guardian must be able to comprehend the informed consent form and sign prior to patient enrollment
  • Karnofsky performance status at time of study entry must be >= 70%
  • Life expectancy of >= 3 months
  • Patients must agree to undergo repeat clinical neurological examinations and brain magnetic resonance imaging (MRI) with appropriate contrast after every other cycle of chemotherapy
  • White blood cell (WBC) > 3000/ul
  • Absolute neutrophil count (ANC) > 1500/ul
  • Platelets > 100,000/ul
  • Hemoglobin > 10 gm/100ml
  • Total and direct bilirubin < 1.5 times upper limit of laboratory normal
  • Serum glutamic oxaloacetic transaminase (SGOT) and serum glutamate pyruvate transaminase (SGPT) =< 3 times upper limit of laboratory normal
  • Alkaline phosphatase =< 3 times upper limit of laboratory normal
  • Blood urea nitrogen (BUN) < 1.5 times upper limit of laboratory normal
  • Serum creatinine < 1.5 times upper limit of laboratory normal
  • Left ventricular ejection fraction (LVEF) >= 40%, however, subjects with a LVEF in the range of 40-49% should have cardiology clearance prior to intervention
  • MGMT promoter methylation analysis of surgically resected tumor or tumor biopsy must demonstrate an unmethylated or hypomethylated MGMT promoter status

Exclusion Criteria:

  • Patients with cardiac insufficiency and a LVEF of < 40%; history of coronary artery disease or arrhythmia, which has required or requires ongoing treatment
  • Patients with active pulmonary infection and/or pulse oximetry < 90% and a corrected diffusion capacity of the lung for carbon monoxide (DLCO) < 70% of predicted
  • Active systemic infection
  • Patients who are human immunodeficiency virus (HIV) positive
  • Pregnant or lactating women; a beta-human chorionic gonadotropin (HCG) level will be obtained from women of childbearing potential; fertile men and women should use effective contraception
  • Previous chemotherapy for any malignancy including temozolomide, dacarbazine (DTIC) or prior nitrosourea
  • Diabetes mellitus
  • Bleeding disorder
  • Methylated or hypermethylated MGMT promoter status within tumor tissue
  • Medical or psychiatric condition which in the opinion of the protocol chairman would compromise the patient's ability to tolerate this protocol
  • Prior interstitial radiotherapy, stereotactic or gamma knife surgery or implanted BCNU-wafers

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Treatment (chemotherapy, autologous stem cell transplant)
See Detailed Description
Correlative studies
Given SC
Other Names:
  • G-CSF
  • r-metHuG-CSF
  • Neupogen
  • Recombinant Methionyl Human Granulocyte Colony Stimulating Factor
  • rG-CSF
  • Tevagrastim
  • Filgrastim XM02
  • Tbo-filgrastim
Given PO
Other Names:
  • Temodar
  • SCH 52365
  • Temodal
  • Temcad
  • Methazolastone
  • RP-46161
  • Temomedac
  • CCRG-81045
  • Imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxamide, 3, 4-dihydro-3-methyl-4-oxo-
  • M & B 39831
  • M and B 39831
Given IV
Other Names:
  • BCNU
  • BiCNU
  • Becenum
  • Becenun
  • Bis(chloroethyl) Nitrosourea
  • Bis-Chloronitrosourea
  • Carmubris
  • Carmustin
  • Carmustinum
  • FDA 0345
  • N,N'-Bis(2-chloroethyl)-N-nitrosourea
  • Nitrourean
  • Nitrumon
  • SK 27702
  • SRI 1720
  • WR-139021
  • Gliadel
Undergo proton beam radiation therapy
Given SC
Other Names:
  • Mozobil
  • AMD 3100
  • JM-3100
  • SDZ SID 791
Given IV
Other Names:
  • O(6)-Benzylguanine
  • 6-O-BENZYLGUANINE
Undergo 3D conformal IMRT
Other Names:
  • 3-dimensional radiation therapy
  • 3D CONFORMAL RADIATION THERAPY
  • 3D CRT
  • 3D-CRT
  • Conformal Therapy
  • Radiation Conformal Therapy
Undergo autologous in vitro-treated peripheral blood stem cell transplant
Other Names:
  • Autologous Stem Cell Transplantation
Undergo autologous in vitro-treated peripheral blood stem cell transplant
Other Names:
  • in vitro-treated PBPC transplantation
  • in vitro-treated peripheral blood progenitor cell transplantation
Undergo 3D conformal IMRT
Other Names:
  • IMRT
  • Intensity Modulated RT
  • Intensity-Modulated Radiotherapy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Dose-limiting Toxicity (DLT)
Time Frame: Up to 6 weeks after infusion
Defined as any grade 4 nonhematopoietic toxicity that is likely related to the investigational procedures (Part I)
Up to 6 weeks after infusion
Number of Participants With Retrovirus or Leukemia
Time Frame: Up to 2 years after infusion
Replication competent retrovirus or diagnosis of leukemia
Up to 2 years after infusion

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Response Rate
Time Frame: Up to 66 months
Number of patients with reduction in tumor burden of a predefined amount
Up to 66 months
Duration of Response
Time Frame: Up to 65 months
From the onset of temozolomide to the date at which unequivocal disease progression, assessed up to 65 months.
Up to 65 months
Time to Progression
Time Frame: Up to 66 months.
From the first day of treatment (transplant) until unequivocal progression is documented, assessed up to 66 months.
Up to 66 months.
Number of Participants That Survived
Time Frame: Up to 74 months
From the first day of treatment until death, assessed up to 74 months.
Up to 74 months
Number of Participants With Chemoprotection
Time Frame: Up to 66 months
assessed by the ability to increase the Temozolomide dose beyond 472 mg/m^2
Up to 66 months
Number of Participants With Chemoselection
Time Frame: Up to 59 months
assessed by the increase in peripheral blood Vector Copy Number (VCN), the average copies of integrated transgene per cell, after chemotherapy
Up to 59 months
Gene Transfer Efficiency
Time Frame: Up to 59 months
Assessed by gene marking in peripheral blood prior to chemoselection. Gene marking is assessed in whole blood by quantitative PCR and reported as a vector copy number (VCN) or the average copies of integrated transgene per cell. The units here will be reported as copies/cell.
Up to 59 months
Gene Transfer Efficiency After Chemotherapy
Time Frame: Up to 59 months
Assessed by gene marking in peripheral blood after chemoselection. Gene marking is assessed in whole blood by quantitative PCR and reported as a vector copy number (VCN) or the average copies of integrated transgene per cell. The units here will be reported as copies/cell.
Up to 59 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 25, 2009

Primary Completion (Actual)

July 6, 2018

Study Completion (Actual)

January 20, 2021

Study Registration Dates

First Submitted

April 29, 2008

First Submitted That Met QC Criteria

April 29, 2008

First Posted (Estimate)

April 30, 2008

Study Record Updates

Last Update Posted (Actual)

May 18, 2022

Last Update Submitted That Met QC Criteria

April 29, 2022

Last Verified

January 1, 2022

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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