The prognosis for most patients with high grade gliomas remains poor. Local progression remains the predominate mode of treatment failure. Resistance to radiotherapy is largely due to DNA repair, ultimately resulting recurrence and death. We are exploring the use of DNA repair inhibiting compounds as radiosensitizers for the treatment of primary brain tumors. 2-Chlorodeoxyadenosine (2CDA) is an adenosine analog which resists deamination, inhibits DNA repair, and is a potent radiosensitizer of tumor cells in vitro. 2CDA has also demonstrated single agent activity against recurrent gliomas in a phase 1 study of non-hematologic malignancies. Thus, in the present study we are conducting a phase 1 dose escalation of 2CDA given during the course of acelerated hyperfractionated radiotherapy for patients with high grade glioma or glioblastoma.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Intramural Research (Z01)
Project #
1Z01SC010065-01
Application #
2464555
Study Section
Special Emphasis Panel (RO)
Project Start
Project End
Budget Start
Budget End
Support Year
1
Fiscal Year
1996
Total Cost
Indirect Cost
Name
National Cancer Institute Division of Clinical Sciences
Department
Type
DUNS #
City
State
Country
United States
Zip Code
Chan, Linda W; Moses, Marsha A; Goley, Elizabeth et al. (2004) Urinary VEGF and MMP levels as predictive markers of 1-year progression-free survival in cancer patients treated with radiation therapy: a longitudinal study of protein kinetics throughout tumor progression and therapy. J Clin Oncol 22:499-506
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Marcus, Karen J; Dutton, Sharon C; Barnes, Patrick et al. (2003) A phase I trial of etanidazole and hyperfractionated radiotherapy in children with diffuse brainstem glioma. Int J Radiat Oncol Biol Phys 55:1182-5
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Menard, Cynthia; Camphausen, Kevin; Muanza, Thierry et al. (2003) Clinical trial of endorectal amifostine for radioprotection in patients with prostate cancer: rationale and early results. Semin Oncol 30:63-7
Palayoor, Sanjeewani T; Tofilon, Philip J; Coleman, C Norman (2003) Ibuprofen-mediated reduction of hypoxia-inducible factors HIF-1alpha and HIF-2alpha in prostate cancer cells. Clin Cancer Res 9:3150-7
Stone, Helen B; Coleman, C Norman; Anscher, Mitchell S et al. (2003) Effects of radiation on normal tissue: consequences and mechanisms. Lancet Oncol 4:529-36
Coleman, C Norman; Wallner, Paul E; Abrams, Jeffrey S (2003) Inflammatory breast issue. J Natl Cancer Inst 95:1182-3

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