Lam JL, Shugarts SB, Okochi H, Benet LZ Elucidating the effect of final-day dosing of rifampin in induction studies on hepatic drug disposition and metabolism. J Pharmacol Exp Ther. 2006 Nov;319(2):864-70. Epub 2006 Aug 11.
Lau YY, Huang Y, Frassetto L, Benet LZ effect of OATP1B transporter inhibition on the pharmacokinetics of atorvastatin in healthy volunteers. Clin Pharmacol Ther. 2007 Feb;81(2):194-204. Epub 2006 Dec 27.
Lau YY, Okochi H, Huang Y, Benet LZ Pharmacokinetics of atorvastatin and its hydroxy metabolites in rats and the effects of concomitant rifampicin single doses: relevance of first-pass effect from hepatic uptake transporters, and intestinal and hepatic metabolism. Drug Metab Dispos. 2006 Jul;34(7):1175-81. Epub 2006 Apr 19.
Nolin TD, Naud J, Leblond FA, Pichette V Emerging evidence of the impact of kidney disease on drug metabolism and transport. Clin Pharmacol Ther. 2008 Jun;83(6):898-903. doi: 10.1038/clpt.2008.59. Epub 2008 Apr 2. Review.
Sica DA, Halstenson CE, Gehr TW, Keane WF Pharmacokinetics and blood pressure response of losartan in end-stage renal disease. Clin Pharmacokinet. 2000 Jun;38(6):519-26.
Sun H, Huang Y, Frassetto L, Benet LZ Effects of uremic toxins on hepatic uptake and metabolism of erythromycin. Drug Metab Dispos. 2004 Nov;32(11):1239-46. Epub 2004 Jul 30.
Wu CY, Benet LZ Predicting drug disposition via application of BCS: transport/absorption/ elimination interplay and development of a biopharmaceutics drug disposition classification system. Pharm Res. 2005 Jan;22(1):11-23. Review.
Pharmacokinetic Study of Propranolol, Losartan, and Eprosartan in Healthy Volunteers and Patients With Chronic Kidney Disease
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
