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Radiolabeled Monoclonal Antibody Therapy in Treating Patients With Primary Brain 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: NCT00003478
Recruitment Status : Completed
First Posted : January 27, 2003
Last Update Posted : February 20, 2013
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Duke University

Brief Summary:

RATIONALE: Monoclonal antibodies can locate tumor cells and deliver radioactive tumor-killing substances such as radioactive iodine to them without harming normal cells.

PURPOSE: This randomized phase I/II trial is studying the side effects, best way to give, and best dose of radiolabeled monoclonal antibody and to see how well it works in treating patients with primary brain tumors.

Condition or disease Intervention/treatment Phase
Brain and Central Nervous System Tumors Procedure: conventional surgery Radiation: iodine I 131 monoclonal antibody 81C6 Radiation: radiation therapy Phase 1 Phase 2

Detailed Description:


  • Determine which one of two delivery techniques (bolus injection versus microinfusion) provides the greater distribution volume of iodine I 131 antitenascin monoclonal antibody 81C6 (I 131 MAb 81C6) administered intratumorally in patients with newly diagnosed or recurrent malignant primary brain tumors.
  • Determine the maximum tolerated dose of I 131 MAb 81C6 delivered intratumorally in these patients.
  • Evaluate the efficacy of I 131 MAB 81C6 delivered intratumorally in these patients.

OUTLINE: This is a randomized, dose-escalation study.

Patients are randomized to receive iodine I 131 antitenascin monoclonal antibody 81C6 (I 131 MAb 81C6) by one of two delivery techniques first, then crossover to receive the antibody by the other technique 3 days later. Each patient then receives a therapeutic dose by the most efficient method. Both methods are delivered via a stereotactically-placed intralesional catheter.

  • Arm I: Bolus injection method
  • Arm II: Microinfusion delivery method Cohorts of 3-6 patients receive escalating doses of I 131 MAb 81C6, with dose escalation occurring separately for each arm. After 10 patients are enrolled and the best method of administration is determined, all subsequent patients receive I 131 MAb 81C6 by that method, and the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose at which no more the 2 of 6 patients experience dose-limiting toxicity.

Patients with newly diagnosed tumors for which no effective conventional therapy exists, such as malignant glial tumors, are treated with external beam radiotherapy within 4 months after I 131 MAb 81C6 infusion. Patients with recurrent tumors receive no other therapy unless tumor progresses.

Patients are followed at 4, 8, 16, and 24 weeks and then every 12 weeks for one year.

PROJECTED ACCRUAL: At least 10 patients will be accrued for this study within 1 year.

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 10 participants
Allocation: Randomized
Primary Purpose: Treatment
Official Title: Phase I Study of Intra-Tumoral, Radiolabeled, Anti-Tenascin Monoclonal Antibody 81C6 in the Treatment of Patients With Malignant Primary Brain Tumors
Study Start Date : October 1997
Primary Completion Date : July 2007
Study Completion Date : July 2007

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No


  • Histologically proven newly diagnosed or recurrent primary intracranial WHO grade III or IV glioma
  • Reactivity of tumor cells with 81C6 demonstrated by immunohistology with either a polyclonal rabbit antibody or the monoclonal mouse antibody
  • Radiographic evidence of a single lesion by MRI or CT scan

    • No greater than 2 to 5 cm
  • No cerebral herniation syndrome
  • Midline brain shift less than 0.5 cm



  • 18 and over

Performance status:

  • Karnofsky 60-100%

Life expectancy:

  • Not specified


  • Absolute neutrophil count greater than 1000/mm^3
  • Platelet count greater than 100,000/mm^3
  • Hemoglobin greater than 10 g/dL


  • Bilirubin less than 1.5 mg/dL
  • Alkaline phosphatase less than 1.5 times normal
  • SGOT less than 1.5 times normal


  • Creatinine less than 2.0 mg/dL


  • Not pregnant or nursing
  • Fertile patients must use effective contraception
  • No allergies to iodine or local anesthetics


Biologic therapy:

  • No concurrent autologous bone marrow transplant


  • No more than 1 prior conventional or phase II chemotherapy regimen
  • No prior phase I chemotherapy regimens
  • At least 4 weeks since prior chemotherapy
  • No concurrent systemic chemotherapy

Endocrine therapy:

  • Corticosteroids allowed but must be on stable dose for at least 1 week


  • At least 3 months since radiotherapy to site of measurable disease in the nervous system, unless evidence of progression


  • Not specified

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00003478

United States, North Carolina
Duke Comprehensive Cancer Center
Durham, North Carolina, United States, 27710
Sponsors and Collaborators
Duke University
National Cancer Institute (NCI)
Study Chair: Darell D. Bigner, MD, PhD Duke Cancer Institute

Responsible Party: Duke University Identifier: NCT00003478     History of Changes
Other Study ID Numbers: 1529
CDR0000066515 ( Other Identifier: NCI )
First Posted: January 27, 2003    Key Record Dates
Last Update Posted: February 20, 2013
Last Verified: February 2013

Keywords provided by Duke University:
recurrent adult brain tumor
adult brain stem glioma
adult medulloblastoma
adult glioblastoma
adult anaplastic astrocytoma
adult anaplastic ependymoma
adult anaplastic oligodendroglioma
adult mixed glioma
adult ependymoblastoma
adult giant cell glioblastoma
adult gliosarcoma

Additional relevant MeSH terms:
Brain Neoplasms
Nervous System Neoplasms
Central Nervous System Neoplasms
Neoplasms by Site
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Antibodies, Monoclonal
Immunologic Factors
Physiological Effects of Drugs