Abstract

The purposes of this study are to test a combination of two anticancer drugs, O6Benzylguanine and BCNU, and determine if the degree of anticancer activity can be improved over that of BCNU alone and to determine an effective dose of O6BG and the dose of BCNU that can be administered safely with O6BG. To date, 31 patients have been treated at doses of BG from 10mg/m2-120mg/m2. At the current dose of 120 mg/m2 two evaluable biopsies have been performed and no 06-alkylguanine DNA alkyltransferase (AGT) activity has been detected. The 120 mg/m2 dose appears to represent the dose required to deplete AGT activity (BMDT) of BG. An important finding in our study has been the poor correlation between AGT activity in Peripheral Blood Mononuclear Cells PBMC and tumor tissue. AGT in PBMC at baseline did not correlate with tumor tissue AGT. Depletion of AGT in PBMC was observed within 15 minutes of the commencement of the infusion, and had a nadir between 2 and 6 hours. AGT depletion was maintained for 24 hours, recovered partially at seven days and returned to baseline after 15 days. Total depletion of PBMC AGT occurred at lower doses of BG than tumor tissue AGT.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
2M01RR000080-37
Application #
6115268
Study Section
Project Start
1998-12-01
Project End
1999-11-30
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
37
Fiscal Year
1999
Total Cost
Indirect Cost

  Institution

Name
Case Western Reserve University
Department
Type
DUNS #
077758407
City
Cleveland
State
OH
Country
United States
Zip Code
44106

  Publications

Randis, Tara M; Rice, Madeline Murguia; Myatt, Leslie et al. (2018) Incidence of early-onset sepsis in infants born to women with clinical chorioamnionitis. J Perinat Med 46:926-933
Clark, Erin A S; Weiner, Steven J; Rouse, Dwight J et al. (2018) Genetic Variation, Magnesium Sulfate Exposure, and Adverse Neurodevelopmental Outcomes Following Preterm Birth. Am J Perinatol 35:1012-1022
Askie, Lisa M; Darlow, Brian A; Finer, Neil et al. (2018) Association Between Oxygen Saturation Targeting and Death or Disability in Extremely Preterm Infants in the Neonatal Oxygenation Prospective Meta-analysis Collaboration. JAMA 319:2190-2201
Saade, G R; Thom, E A; Grobman, W A et al. (2018) Cervical funneling or intra-amniotic debris and preterm birth in nulliparous women with midtrimester cervical length less than 30 mm. Ultrasound Obstet Gynecol 52:757-762
Inker, Lesley A; Grams, Morgan E; Levey, Andrew S et al. (2018) Relationship of Estimated GFR and Albuminuria to Concurrent Laboratory Abnormalities: An Individual Participant Data Meta-analysis in a Global Consortium. Am J Kidney Dis :
Juraschek, Stephen P; Miller 3rd, Edgar R; Appel, Lawrence J (2018) Orthostatic Hypotension and Symptoms in the AASK Trial. Am J Hypertens 31:665-671
Bustos, Martha L; Caritis, Steve N; Jablonski, Kathleen A et al. (2017) The association among cytochrome P450 3A, progesterone receptor polymorphisms, plasma 17-alpha hydroxyprogesterone caproate concentrations, and spontaneous preterm birth. Am J Obstet Gynecol 217:369.e1-369.e9
Chen, Teresa K; Appel, Lawrence J; Grams, Morgan E et al. (2017) APOL1 Risk Variants and Cardiovascular Disease: Results From the AASK (African American Study of Kidney Disease and Hypertension). Arterioscler Thromb Vasc Biol 37:1765-1769
Srinivasan, Lakshmi; Page, Grier; Kirpalani, Haresh et al. (2017) Genome-wide association study of sepsis in extremely premature infants. Arch Dis Child Fetal Neonatal Ed 102:F439-F445
Gibson, Kelly S; Stark, Sydney; Kumar, Deepak et al. (2017) The relationship between gestational age and the severity of neonatal abstinence syndrome. Addiction 112:711-716

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