Abstract

This study will test the hypotheses that oral dexamethasone (8 mg, PO BID for 5 days) alters hepatic and/or intestinal cytochrome P450 3A4 (CYP3A4) activity in healthy volunteers. The CYP3A4 pathway metabolizes approximately half of orally administered medications. Dexamethasone is administered to a large number of cancer patients as part of their chemotherapy regimen, to decrease the likelihood of chemotherapy induced emesis or other chemotherapy associated side effects. Human heptocyte and a small amount of clinical data demonstrate CYP3A4 activity is induced by dexamethasone. Alterations in CYP3A4 activity can affect the bioavailability and clearance of antineoplastics metabolized by this pathway, therefore potentially altering their systemic exposure, efficacy and/or toxicity.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
3M01RR000046-39S1
Application #
6297273
Study Section
Project Start
1998-12-01
Project End
1999-11-30
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
39
Fiscal Year
1999
Total Cost
Indirect Cost

  Institution

Name
University of North Carolina Chapel Hill
Department
Type
DUNS #
078861598
City
Chapel Hill
State
NC
Country
United States
Zip Code
27599

  Publications

Venuto, Charles S; Lim, Jihoon; Messing, Susan et al. (2018) Inflammation investigated as a source of pharmacokinetic variability of atazanavir in AIDS Clinical Trials Group protocol A5224s. Antivir Ther 23:345-351
Malinen, Melina M; Kauttonen, Antti; Beaudoin, James J et al. (2018) Novel In Vitro Method Reveals Drugs that Inhibit Solute Transporter Alpha/Beta (OST?/?). Mol Pharm :
Li, Binglan; Verma, Shefali S; Veturi, Yogasudha C et al. (2018) Evaluation of PrediXcan for prioritizing GWAS associations and predicting gene expression. Pac Symp Biocomput 23:448-459
Hanly, John G; Li, Qiuju; Su, Li et al. (2018) Cerebrovascular Events in Systemic Lupus Erythematosus: Results From an International Inception Cohort Study. Arthritis Care Res (Hoboken) 70:1478-1487
Barber, Megan R W; Hanly, John G; Su, Li et al. (2018) Economic Evaluation of Lupus Nephritis in the Systemic Lupus International Collaborating Clinics Inception Cohort Using a Multistate Model Approach. Arthritis Care Res (Hoboken) 70:1294-1302
Rini, Christine; Vu, Maihan B; Lerner, Hannah et al. (2018) A qualitative study of patient and provider perspectives on using web-based pain coping skills training to treat persistent cancer pain. Palliat Support Care 16:155-169
Little, Jayne; Parker, Ben; Lunt, Mark et al. (2018) Glucocorticoid use and factors associated with variability in this use in the Systemic Lupus International Collaborating Clinics Inception Cohort. Rheumatology (Oxford) 57:677-687
Abdullah, Lubna H; Coakley, Raymond; Webster, Megan J et al. (2018) Mucin Production and Hydration Responses to Mucopurulent Materials in Normal versus Cystic Fibrosis Airway Epithelia. Am J Respir Crit Care Med 197:481-491
Martin, Maureen P; Naranbhai, Vivek; Shea, Patrick R et al. (2018) Killer cell immunoglobulin-like receptor 3DL1 variation modifies HLA-B*57 protection against HIV-1. J Clin Invest 128:1903-1912
Haas, David W; Bradford, Yuki; Verma, Anurag et al. (2018) Brain neurotransmitter transporter/receptor genomics and efavirenz central nervous system adverse events. Pharmacogenet Genomics 28:179-187

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