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Brain and Central Nervous System TumorsPhase 1NCT00004892

O6-Benzylguanine and Carmustine Implants in Treating Patients With Recurrent Malignant Glioma

A Phase 1 study testing O6-benzylguanine, polifeprosan 20 with carmustine implant and conventional surgery in people with Brain and Central Nervous System Tumors, run by National Cancer Institute (NCI) at 9 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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 and giving drugs in different ways may kill more tumor cells. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Brain and Central Nervous System Tumors
What is being tested?
O6-benzylguanine, polifeprosan 20 with carmustine implant and conventional surgery
Type of treatment
Surgery or procedure
How many people
Not given
Where
9 sitesUnited States
Study dates
Apr 2000to not given
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

DISEASE CHARACTERISTICS: Histologically confirmed malignant glioma determined from prior stereotactic biopsy or cytoreductive surgery for removal of a supratentorial brain tumor Unilateral supratentorial tumor, measuring at least 1 cm, as determined by CT scan or MRI No more than 1 focus of tumor and no tumor crossing the midline Surgical treatment indicated at baseline evaluation Received prior definitive (greater than 5,000 cGy) external beam radiotherapy more than 3 months ago Evidence of progression At time of tumor resection and Gliadel wafers implantation: Intraoperative pathological diagnosis on frozen section or squash preparation of malignant glioma OR Glioblastoma multiforme or anaplastic astrocytoma on permanent sections from a prior surgery and an intraoperative pathological diagnosis on frozen section or squash preparation of tumor, glioma, or malignant glioma (not necrosis)

PATIENT CHARACTERISTICS: Age: 18 and over Performance status: Karnofsky 60-100% Life expectancy: At least 60 days Hematopoietic: Absolute neutrophil count at least 1,500/mm3 Platelet count at least 100,000/mm3 Hepatic: Bilirubin no greater than 1.5 mg/dL Transaminases no greater than 4 times upper limit of normal Renal: Creatinine no greater than 1.7 mg/dL Other: Not pregnant or nursing Negative pregnancy test Fertile patients must use effective contraception for 1 year after surgery No other concurrent significant life threatening disease No known hypersensitivity to nitrosoureas No other malignancy in past five years except curatively treated carcinoma in situ of the cervix or basal cell carcinoma of the skin

PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: At least 4 weeks since prior chemotherapy (6 weeks for nitrosoureas) and recovered No other concurrent chemotherapy during first 56 days of study Endocrine therapy: No concurrent dexamethasone as an antiemetic Radiotherapy: See Disease Characteristics Surgery: See Disease Characteristics

Trial locations and contacts

9 sites in 1 country.

9 sites in 1 country

United States9 sites
  • Emory University Hospital - Atlanta

    Atlanta, Georgia, 30322

  • Johns Hopkins Oncology Center

    Baltimore, Maryland, 21231

  • University of Alabama Comprehensive Cancer Center

    Birmingham, Alabama, 35294

  • Massachusetts General Hospital Cancer Center

    Boston, Massachusetts, 02114

  • Henry Ford Hospital

    Detroit, Michigan, 48202

  • University of Pennsylvania Cancer Center

    Philadelphia, Pennsylvania, 19104

  • University of Texas Health Science Center at San Antonio

    San Antonio, Texas, 78284-7811

  • H. Lee Moffitt Cancer Center and Research Institute

    Tampa, Florida, 33612

  • Comprehensive Cancer Center of Wake Forest University Baptist Medical Center

    Winston-Salem, North Carolina, 27157-1082

Other trials in United States

About this study

Official title: Phase I GLIADEL and Continuous Infusion of Intravenous O6-Benzylguanine Trial in Patients With Recurrent Malignant Glioma

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 and giving drugs in different ways may kill more tumor cells.

PURPOSE: Phase I trial to study the effectiveness of O6-benzylguanine and implanted carmustine wafers in treating patients who have recurrent malignant glioma.

Read the detailed description

OBJECTIVES: I. Determine the dose of O6-benzylguanine that completely suppresses AGT levels in patients with recurrent malignant glioma. II. Evaluate the safety and tolerance of increasing duration for up to 2 weeks of continuously infused O6-benzylguanine at a dose that will completely suppress tumor AGT activity combined with intracranially implanted polifeprosan 20 with carmustine implants (Gliadel wafers) in this patient population.

OUTLINE: This is a dose escalation study of O6-benzylguanine (O6-BG). Patients in the first cohort receive O6-BG IV over 1 hour followed by continuous infusion of O6-BG for 2 days prior to surgery. Patients undergo surgical resection and receive up to 8 polifeprosan 20 with carmustine implants (Gliadel wafers) in the resected tumor cavity. Cohorts of 14 patients receive escalating doses of O6-BG until 11 out of 14 patients in a cohort have complete suppression of AGT levels. Once the dose of O6-BG that completely suppresses AGT has been established, subsequent patients receive O6-BG IV beginning at least 1 hour prior to surgery followed by the established continuous infusion dose beginning on the day of surgery. The infusion continues for up to 14 days postoperatively. Cohorts of 6-12 patients receive lengthened durations of continuous infusion O6-BG until the maximum tolerated dose (MTD) is determined or the length of the infusion reaches 14 days. The MTD is defined as the dose preceding that at which 3 of 6 or 5 of 12 patients experience dose limiting toxicities. Patients are followed at 3, 6, 9, and 12 months, and then until death.

PROJECTED ACCRUAL: A minimum of 38 patients will be accrued for this study over 9.5 months.

Being tested
O6-benzylguanine, polifeprosan 20 with carmustine implant, conventional surgery
Keywords
recurrent adult brain tumor, adult brain stem glioma, adult ependymoma, adult glioblastoma, adult oligodendroglioma, adult anaplastic astrocytoma, adult mixed glioma, adult giant cell glioblastoma, adult gliosarcoma
Medical subject headings
Central Nervous System Neoplasms, Brain Neoplasms, Ependymoma, Glioblastoma, Oligodendroglioma, Astrocytoma, Glioma, Gliosarcoma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • O6-benzylguanineDrug

  • polifeprosan 20 with carmustine implantDrug

  • conventional surgeryProcedure or surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 May 2004 (estimated)
  2. Study startApr 2000

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
IDs, dates and publications
ClinicalTrials.gov ID
NCT00004892
Sponsor's protocol ID
CDR0000067569
Other IDs
NABTT-9803, JHOC-NABTT-9803
Status last verified
Feb 2007
First submitted
7 Mar 2000
Last updated
9 Feb 2009
Results posted
No

Publications

  • Weingart J, Grossman SA, Carson KA, Fisher JD, Delaney SM, Rosenblum ML, Olivi A, Judy K, Tatter SB, Dolan ME. Phase I trial of polifeprosan 20 with carmustine implant plus continuous infusion of intravenous O6-benzylguanine in adults with recurrent malignant glioma: new approaches to brain tumor therapy CNS consortium trial. J Clin Oncol. 2007 Feb 1;25(4):399-404. doi: 10.1200/JCO.2006.06.6290.

    PubMed 17264335

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing O6-benzylguanine, polifeprosan 20 with carmustine implant and conventional surgery in people with Brain and Central Nervous System Tumors, run by National Cancer Institute (NCI) at 9 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Feb 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 9 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00004892, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Feb 2009.

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