Abstract:
:The steady-state pharmacokinetics of didanosine (DDI) and ketoconazole (KET) were evaluated when the agents were administered alone or concurrently to patients seropositive for the human immunodeficiency virus. Using a randomized, three-way crossover design, multiple oral doses of DDI (375 mg twice daily for 4 days), KET (200 mg daily for 4 days) or the combination were administered under fasting conditions. When DDI and KET were coadministered, KET was given 2 hours before the morning dose of didanosine. Serial blood samples and total urine output were a collected after the administration of a final single dose on day 5 of each treatment session. Samples were analyzed using high-pressure liquid chromatography (HPLC)/ultraviolet (UV) or fluorescence methods specific for unchanged DDI (plasma and urine) or KET (plasma only). Pharmacokinetic parameters were calculated using noncompartmental methods. The average DDI maximum peak plasma concentration (Cmax) value at steady state was significantly less when DDI was administered with KET (1836 ng/mL) than when DDI was administered alone (2094 ng/mL), although the magnitude of the decrease was only 12%. Didanosine area under the curve (AUC(0-tau)) for the combination (2872 hr.ng/mL) was 8% less than when DDI was given alone (3107 hr.ng/mL); the difference was not significant. There were no significant differences among the other evaluated parameters (time to reach peak concentration [tmax], half-life [t1/2], renal clearance [CLR], or urinary recovery [UR]) between the two DDI treatments. There were no significant differences among any of the pharmacokinetic parameters between the two KET treatments.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
J Clin Pharmacoljournal_title
Journal of clinical pharmacologyauthors
Knupp CA,Brater DC,Relue J,Barbhaiya RHdoi
10.1002/j.1552-4604.1993.tb01921.xsubject
Has Abstractpub_date
1993-10-01 00:00:00pages
912-7issue
10eissn
0091-2700issn
1552-4604journal_volume
33pub_type
临床试验,杂志文章,随机对照试验abstract::With increasing interest in enrolling adolescent patients in adult trials, a question often arises: when can pediatric patients use adult dosages? For currently approved therapeutic monoclonal antibodies (mAbs) with equivalent adult and pediatric indications, body weight thresholds for pediatric patients to receive ad...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/jcph.1434
更新日期:2019-10-01 00:00:00
abstract::The safety and efficacy of intravenous (i.v.) torsemide as adjunctive therapy for acute cardiogenic pulmonary edema was evaluated. Thirteen patients were treated with i.v. torsemide and six patients, with i.v. furosemide, as a positive control. Doses of torsemide, 20 mg or 40 mg, and furosemide, 40 mg or 80 mg, were a...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1002/j.1552-4604.1994.tb01985.x
更新日期:1994-11-01 00:00:00
abstract::Vitamin B6 has been known to possess antiemetic effects since 1942. This water soluble compound has several forms in the circulation including pyridoxine, pyridoxal, and pyridoxal phosphate. The active antiemetic form of vitamin B6 is unknown. This was a pre-specified substudy of a randomized, placebo-controlled trial...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1002/jcph.369
更新日期:2014-12-01 00:00:00
abstract::Neutropenia is the most commonly reported hematologic toxicity following treatment with palbociclib, a cyclin-dependent kinase 4/6 inhibitor approved for metastatic breast cancer. Using data from 185 advanced cancer patients receiving palbociclib in 3 clinical trials, a pharmacokinetic-pharmacodynamic model was develo...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1002/jcph.902
更新日期:2017-09-01 00:00:00
abstract::The objective of this study was to investigate the gene expression signature of monocyte/macrophages and the pleiotropic effects of atorvastatin on monocytes in atherosclerotic patients. Forty patients with coronary heart diseases were randomly assigned to double-blind therapy with either 20 or 80 mg per day of atorva...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1177/0091270009340889
更新日期:2010-03-01 00:00:00
abstract::A clinical study of bumetanide, a new diuretic, was conducted in outpatients of a cardiology clinic to determine its long-term effectiveness and safety in the treatment of peripheral edema due to congestive heart failure. The drug was administered for at least 24 weeks on a selected group of 34 patients. The patients ...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/j.1552-4604.1981.tb05685.x
更新日期:1981-11-01 00:00:00
abstract::The possible effect of oral flecainide acetate on steady-state digoxin levels was assessed in 15 healthy men. Each volunteer received digoxin 0.25 mg daily (8 AM) for 22 consecutive days and flecainide 200 mg bid (8 AM and 8 PM) on days 11 through 15. Plasma digoxin and flecainide levels were measured by radioimmunoas...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/j.1552-4604.1986.tb02898.x
更新日期:1986-01-01 00:00:00
abstract::Atrial fibrillation is very common in the United States. After a search of Medline, EMBASE, and CINAHL, 4 trials evaluating inhibitors of the renin-angiotensin system were identified for prevention of new-onset atrial fibrillation, facilitation of electrical cardioversion of atrial fibrillation, and prevention of atri...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,meta分析
doi:10.1177/0091270005283284
更新日期:2006-01-01 00:00:00
abstract::This analysis was conducted to characterize the pharmacokinetics and pharmacodynamics of pegfilgrastim and to develop a pharmacokinetic-pharmacodynamic model to describe the granulopoietic effects of pegfilgrastim and the homeostatic regulation of pegfilgrastim clearance in healthy subjects. Pegfilgrastim serum concen...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1177/0091270006288731
更新日期:2006-07-01 00:00:00
abstract::The effect of hepatic impairment on the pharmacokinetics of a sustained-release formulation of ranolazine and 3 major metabolites was investigated in an open-label, parallel-group study. Ranolazine (875-mg loading dose followed by 500 mg every 12 hours for a total of 4 maintenance doses) was administered to subjects w...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1177/0091270005276739
更新日期:2005-07-01 00:00:00
abstract::Steady-state inhibitory activity of rofecoxib (Vioxx) on COX-2 versus COX-1 was compared with that of commonly used nonsteroidal anti-inflammatory drugs (NSAIDs) in 76 healthy volunteers randomized to placebo, rofecoxib 12.5 mg qd, rofecoxib 25 mg qd, diclofenac 50 mg tid, ibuprofen 800 mg tid, sodium naproxen 550 mg ...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2000-10-01 00:00:00
abstract::DS-1040, a low-molecular-weight imidazole derivative, inhibits the enzymatic activity of thrombin-activatable fibrinolysis inhibitor (TAFIa), enhancing endogenous tissue plasminogen activator-triggered fibrinolysis. This first-in-human, randomized, placebo-controlled, phase 1 study evaluated the safety, pharmacokineti...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1002/jcph.1474
更新日期:2019-12-01 00:00:00
abstract::This retrospective analysis characterizes rituximab population pharmacokinetics in combination with fludarabine and cyclophosphamide and its effect on fludarabine and cyclophosphamide disposition in chronic lymphocytic leukemia (CLL) patients. Rituximab concentration data were well described by a 2-compartment model c...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1177/0091270011430506
更新日期:2012-12-01 00:00:00
abstract::Pharmacological target-mediated drug disposition (TMDD) represents a special source of nonlinear pharmacokinetics, and its occurrence in large-molecule compounds has been well recognized because numerous protein drugs have been reported to have TMDD due to specific binding to their pharmacological targets. Although TM...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/jcph.1763
更新日期:2020-10-19 00:00:00
abstract::Supine office blood pressures (SOBP) and 24-hour automated ambulatory blood pressure monitorings (AABPM) showed blood pressure reductions from a stable baseline to active treatment with 120-, 240-, and 480-mg doses of a new verapamil QD capsule (solid-spheroidal-oral once-daily drug-absorption system: (SODAS) in patie...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/j.1552-4604.1991.tb03698.x
更新日期:1991-02-01 00:00:00
abstract::The objective of this study was to determine the absolute oral bioavailability and disposition of omapatrilat. This single-dose, randomized, crossover study of 20 mg intravenous and 50 mg oral [14C]omapatrilat was conducted in 12 healthy male subjects to determine the disposition and oral bioavailability of omapatrila...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1177/00912700122010726
更新日期:2001-08-01 00:00:00
abstract::The objective of this study was to determine the effects of double-strength grapefruit juice on gastric pH and systemic bioavailability of indinavir in HIV-infected subjects receiving indinavir. Fourteen HIV-infected subjects took 800 mg of indinavir with 6 ounces (180 ml) of water or double-strength grapefruit juice....
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1177/00912700122010140
更新日期:2001-04-01 00:00:00
abstract::Although there are many reports of the short-term effectiveness of antiarrhythmic drugs for suppression of ventricular ectopic depolarizations, there are less data available on the long-term use of these drugs. We treated 122 patients for up to 2 years with antiarrhythmic drugs for suppression of frequent ventricular ...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/j.1552-4604.1990.tb03466.x
更新日期:1990-03-01 00:00:00
abstract::Traditionally, plasma or serum drug concentrations have been used for the assessment of bioavailability and bioequivalence. Since in the majority of cases the site of drug action is in the tissue rather than the blood, the use of corresponding free, unbound concentrations in the tissue is a much more meaningful approa...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1177/0091270007312152
更新日期:2008-03-01 00:00:00
abstract::This study further characterized the impact of concentration-dependent protein binding on the bioavailability and clinical use of the immediate-release (IR) and controlled-release (CR) dosage forms of disopyramide after single doses and during steady-state conditions in ten healthy volunteers. Consistent with the clin...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/j.1552-4604.1994.tb02046.x
更新日期:1994-08-01 00:00:00
abstract::In the pivotal TEMPO 3:4 trial, the arginine vasopressin V2-receptor antagonist tolvaptan reduced the rate of kidney growth in patients with autosomal dominant polycystic kidney disease. Tolvaptan was initiated as daily morning/afternoon doses of 45/15 mg, and uptitrated weekly to 60/30 mg and 90/30 mg according to pa...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,多中心研究
doi:10.1002/jcph.880
更新日期:2017-07-01 00:00:00
abstract::Fifteen acute myocardial infarction patients (only one of whom had evidence of significant renal dysfunction) received a constant-rate intravenous infusion of procainamide at one rate for a least 24 hours. Steady-state plasma levels achieved during these infusions were used to calculate total body clearance (C/B). Lin...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/j.1552-4604.1981.tb01727.x
更新日期:1981-01-01 00:00:00
abstract::Amiodarone is a unique antiarrhythmic agent originally developed as a vasodilator. Classified electrophysiologically as a Type III antiarrhythmic, it also has both nonspecific antisympathetic and direct, fast channel-membrane effects. Hemodynamic effects of orally administered amiodarone (a negative inotropic agent) a...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1002/j.1552-4604.1991.tb03673.x
更新日期:1991-11-01 00:00:00
abstract::The objective of this study was to establish effects of inhaled loxapine on the QTc interval in this randomized, placebo-controlled, double-blind crossover study. Forty-eight healthy volunteers received a single inhaled placebo or 10 mg loxapine. Plasma concentrations of loxapine increased with a median Tmax of 1 minu...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1002/jcph.257
更新日期:2014-06-01 00:00:00
abstract::Nilotinib, an oral inhibitor of the tyrosine kinase activity of Abelson protein, is approved for the treatment of patients with newly diagnosed chronic myeloid leukemia (CML) in chronic phase and patients with CML in chronic phase or accelerated phase resistant or intolerant to prior therapies. This review describes t...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1002/jcph.1312
更新日期:2018-12-01 00:00:00
abstract::Chemotherapy-induced nausea and vomiting (CINV) is a common treatment-related adverse event that negatively impacts the quality of life of cancer patients. During pediatric drug development, extrapolation of efficacy from adult to pediatric populations is a pathway that can minimize the exposure of children to unneces...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/jcph.1577
更新日期:2020-06-01 00:00:00
abstract::Transporters play an important role in drug absorption, disposition, and drug action. The evaluation of drug transporters requires a comprehensive understanding of transporter biology and pharmacology. Physiologically based pharmacokinetic (PBPK) models may offer an integrative platform to quantitatively evaluate the ...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1002/jcph.740
更新日期:2016-07-01 00:00:00
abstract::Rapidly inflating health care costs limit patient care, and prescription drug costs constitute a major component of this expenditure. This study examines attitudes toward and knowledge of prescription drug costs of primary care physicians. Access to information about drug costs and implications for medical education a...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/j.1552-4604.1994.tb04726.x
更新日期:1994-12-01 00:00:00
abstract::Isosorbide dinitrate is one of the most commonly prescribed medications for the treatment of ischemic heart disease. It has been demonstrated to be ineffective relative to placebo when taken inappropriately. This study objectively documents the magnitude and nature of compliance in 68 ambulatory patients who were pres...
journal_title:Journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1002/j.1552-4604.1996.tb04222.x
更新日期:1996-07-01 00:00:00
abstract::The pharmacokinetics and bioavailability of hydrocortisone after rectal administration of a hydrocortisone acetate foam were determined after single and multiple dosing in healthy subjects as well as in patients with inflammatory bowel disease. Endogenous hydrocortisone was suppressed by dexamethasone administration. ...
journal_title:Journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1177/00912700122010410
更新日期:2001-05-01 00:00:00