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British Journal of Clinical Pharmacology

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https://www.readbyqxmd.com/read/28548279/significant-decreases-in-blood-propofol-concentrations-during-adrenalectomy-for-phaeochromocytoma
#1
Tatsunori Watanabe, Haruhiko Hiraoka, Takuya Araki, Daisuke Nagano, Tohru Aomori, Tomonori Nakamura, Koujirou Yamamoto, Hiroshi Baba
AIM: The kinetics of propofol are influenced by cardiac output. The aim of this study was to examine changes in blood propofol concentrations during phaeochromocytoma surgery using target-controlled infusion (TCI) anaesthesia with propofol. METHODS: This is a prospective observational study. Ten patients with phaeochromocytoma who underwent unilateral adrenalectomy were included. Cardiac output was measured using an arterial pressure-based cardiac output analysis method...
May 26, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28543687/effect-of-a-single-intravenous-zoledronic-acid-administration-on-biomarkers-of-acute-kidney-injury-aki-in-patients-with-osteoporosis-a-pilot-study
#2
C Cipriani, J Pepe, C Clementelli, R Manai, L Colangelo, V Fassino, L Nieddu, S Minisola
AIMS: The pilot study was designed to evaluate the early effect of intravenous (iv) zoledronic acid (ZA) on renal function. METHODS: Five mg iv ZA was administered to 23 patients with osteoporosis (17 women and 6 men, mean age 73±7 SD years). Urinary NGAL, KIM-1, and MCP-1, plasma (p) MCP-1 and serum (s) IL-18, serum calcium (sCa), Creatinine clearance (CrCl), parathyroid hormone (PTH), plasma C-terminal FGF23 (pFGF23), serum (s) Klotho, calcium excretion (CaEx) and renal threshold phosphate concentration/GFR (TmPO4/GFR) were assessed at baseline, 24 hours (h) and day (d) 30 after administration...
May 25, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28543530/when-two-is-not-better-than-one
#3
LETTER
Evan S Schwarz, Michael E Mullins, David Liss
No abstract text is available yet for this article.
May 24, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28513059/fluoxetine-and-congenital-malformations-a-systematic-review-and-meta-analysis-of-cohort-studies
#4
Shan-Yan Gao, Qi-Jun Wu, Tie-Ning Zhang, Zi-Qi Shen, Cai-Xia Liu, Xin Xu, Chao Ji, Yu-Hong Zhao
AIMS: To investigate the safety of fluoxetine use during pregnancy, and to better understand the relationship between maternal fluoxetine use during the first trimester and congenital malformations in infants. METHODS: PubMed and Web of Science databases were systematically searched from inception to 21 March 2016. Additional studies were identified in a manual search of the reference lists. Two reviewers independently extracted data. A third reviewer checked the data...
May 17, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28512794/free-and-total-plasma-concentrations-of-elvitegravir-cobicistat-during-pregnancy-and-postpartum-a-case-report
#5
LETTER
Catia Marzolini, Laurent Decosterd, Ursula Winterfeld, Frédéric Tissot, Katyuska Francini, Thierry Buclin, Françoise Livio
No abstract text is available yet for this article.
May 16, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28511283/a-different-inhibitor-is-required-for-overcoming-entecavir-resistance-a-comparison-of-four-rescue-therapies-in-a-retrospective-study
#6
Guosheng Yuan, Chengguang Hu, Yuchen Zhou, Junwei Liu, Huaping Huang, Yuan Li, Dinghua Yang, Fuyuan Zhou, Yong-Yuan Zhang, Yuanping Zhou
AIMS: Little clinical data are available regarding reestablishing the effective inhibition of entecavir (ETV)-resistant mutants. In this retrospective study, we aimed to compare the efficacies of four treatment regimens as rescue therapy for those chronic hepatitis B (CHB) patients with ETV resistance. METHODS: A total of 65 patients with ETV resistance were assigned either with tenofovir disoproxil fumarate (TDF) monotherapy (n=21), ETV (0.5 mg) plus adefovir (ADV) combination therapy (n=19), ETV (1...
May 16, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28503781/assessment-of-effect-of-cyp3a-inhibition-cyp-induction-oatp1b-inhibition-and-high-fat-meal-on-pharmacokinetics-of-the-jak1-inhibitor-upadacitinib
#7
Mohamed-Eslam F Mohamed, Steven Jungerwirth, Armen Asatryan, Ping Jiang, Ahmed A Othman
AIMS: Upadacitinib (ABT-494) is a selective Janus kinase 1 inhibitor developed for treatment of auto-immune inflammatory disorders. This work evaluated effects of high-fat meal, cytochrome P450 (CYP) 3A inhibition, CYP induction, and organic anion transporting polypeptide (OATP) 1B inhibition on upadacitinib pharmacokinetics. METHODS: Two Phase 1 evaluations were conducted, each in 12 healthy subjects. In Study 1, using a randomized, 2-sequence cross-over design, a 3 mg dose of upadacitinib (immediate-release capsules) was administered alone under fasting conditions, after high-fat meal, or on Day 4 of a 6-day regimen of 400 mg once-daily ketoconazole...
May 14, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28500677/optimizing-the-dose-in-cancer-patients-treated-with-imatinib-sunitinib-and-pazopanib
#8
N A G Lankheet, I M E Desar, S F Mulder, D M Burger, D M Kweekel, C M L van Herpen, W T A van der Graaf, N P van Erp
AIM: Fixed dose oral tyrosine kinase inhibitors imatinib, sunitinib and pazopanib show a high interpatient variability in plasma exposure. A relationship between plasma exposure and treatment outcome has been established, which supports the rationale for dose optimization of these drugs. The aim of this study was to monitor how many patients reached adequate trough levels after therapeutic drug monitoring (TDM) based dose optimization in daily practice. METHODS: A cohort study was performed in patients treated with imatinib, sunitinib or pazopanib of whom follow-up drug levels were measured between August 2012 and April 2016...
May 12, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28493597/r-warfarin-anticoagulant-effect
#9
LETTER
Roberto Padrini, Luigi Quintieri
No abstract text is available yet for this article.
May 11, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28488266/qt-interval-prolongation-in-opioid-agonist-treatment-analysis-of-continuous-12-lead-electrocardiogram-recordings
#10
Geoffrey K Isbister, Amanda L Brown, Anthony Gill, Alexander J Scott, Leonie Calver, Adrian J Dunlop
BACKGROUND: Methadone is a widely used opioid agonist treatment associated with QT prolongation and torsades des pointes. We investigated the QT interval in patients treated with methadone or buprenorphine using continuous 12-lead holter recordings. METHODS: We prospectively recorded 24 h holters in patients prescribed methadone or buprenorphine, compared to controls. After their normal dose a continuous 12-lead holter recorder was attached for 24 h. Digital electrocardiograms were extracted hourly from the holter recordings...
May 9, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28477428/the-pharmacokinetic-interaction-between-ivacaftor-and-ritonavir-in-healthy-volunteers
#11
Anne Marie Liddy, Gavin McLaughlin, Susanne Schmitz, Deirdre M D'Arcy, Michael G Barry
AIM: The aim of this study was to determine the pharmacokinetic interaction between ivacaftor and ritonavir. METHODS: A liquid chromatography mass spectrometry (LC-MS) method was developed for the measurement of ivacaftor in plasma. An open-label, sequential, cross-over study was conducted with 12 healthy volunteers. Three pharmacokinetic profiles were assessed for each volunteer: ivacaftor 150 mg alone (study A) ivacaftor 150 mg plus ritonavir 50 mg daily (study B) and ivacaftor 150 mg plus ritonavir 50 mg daily after two weeks of ritonavir 50 mg daily (study C)...
May 6, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28474741/metformin-and-daclatasvir-absence-of-a-pharmacokinetic-pharmacodynamic-drug-interaction-in-healthy-volunteers
#12
Elise J Smolders, Angela Colbers, Clara T M M de Kanter, Kirsten Velthoven-Graafland, Leonie T Wolberink, Noor van Ewijk-Beneken Kolmer, Joost P H Drenth, Rob E Aarnoutse, Cees J Tack, David M Burger
AIM: The aim of this study was to evaluate the effect of the proposed organic cation transporter (OCT) inhibitor daclatasvir on the pharmacokinetics and pharmacodynamics of the OCT substrate metformin. METHODS: This was an open-label, two-period, randomized, crossover trial in 20 healthy subjects. Treatment A consisted of metformin and treatment B consisted of metformin + daclatasvir. Pharmacokinetic curves were recorded at steady state. Geometric mean ratios (GMRs) with 90% confidence intervals (CIs) were calculated for metformin area under the concentration-time curve from 0 to 12 hours (AUC0-12 ), maximum plasma concentration (Cmax ) and final plasma concentration (Clast )...
May 5, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28470980/aprepitant-and-fosaprepitant-drug-interactions-a-systematic-review
#13
Priya Patel, J Steven Leeder, Micheline Piquette-Miller, L Lee Dupuis
AIMS: Aprepitant and fosaprepitant, commonly used for the prevention of chemotherapy-induced nausea and vomiting, alter cytochrome P450 activity. This systematic review evaluates clinically significant pharmacokinetic drug interactions with aprepitant and fosaprepitant and describes adverse events ascribed to drug interactions with aprepitant or fosaprepitant. METHODS: We systematically reviewed the literature to September 11, 2016 to identify articles evaluating drug interactions involving aprepitant/fosaprepitant...
May 4, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28452063/risk-factors-of-adverse-health-outcomes-after-hospital-discharge-modifiable-by-clinical-pharmacist-interventions-a-review-with-a-systematic-approach
#14
REVIEW
B Morath, T Mayer, A F J Send, T Hoppe-Tichy, W E Haefeli, H M Seidling
AIM: This review assessed the evidence on risk factors for the occurrence of adverse health outcomes after discharge (i.e. unplanned readmission or adverse drug event after discharge) that are potentially modifiable by clinical pharmacist interventions. The findings were compared with patient characteristics reported in guidelines that supposedly indicate a high risk of drug-related problems. METHODS: First, guidelines and risk assessment tools were searched for patient characteristics indicating a high risk of drug-related problems...
April 27, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28449367/metoprolol-pridopidine-drug-drug-interaction-and-food-effect-assessments-of-pridopidine-a-new-drug-for-treatment-of-huntington-disease
#15
Laura Rabinovich-Guilatt, Lilach Steiner, Hussein Hallak, Gina Pastino, Pierandrea Muglia, Ofer Spiegelstein
AIM: Pridopidine is an oral drug in clinical development for treatment of patients with Huntington disease. This study examined the interactions of pridopidine with in vitro cytochrome P450 activity and characterized the effects of pridopidine on CYP2D6 activity in healthy volunteers using metoprolol as a probe substrate. The effect of food on pridopidine exposure was assessed. METHODS: The ability of pridopidine to inhibit and/or induce in vitro activity of drug metabolising enzymes was examined in human liver microsomes and fresh hepatocytes...
April 27, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28449302/prescribing-safety-assessment-2016-delivery-of-a-national-prescribing-assessment-to-7-343-uk-final-year-medical-students
#16
Simon R J Maxwell, Jamie J Coleman, Lynne Bollington, Celia Taylor, David J Webb
AIM(S): Newly graduated doctors write a large proportion of prescriptions in UK hospitals but recent studies have shown that they frequently make prescribing errors. The Prescribing Safety Assessment (PSA) has been developed as an assessment of competence in relation to prescribing and supervising the use of medicines. This report describes the delivery of the PSA to all UK final-year medical students in 2016 (PSA2016). METHODS: The PSA is a 2-hour online assessment comprising eight sections which cover various aspects of prescribing defined within the outcomes of undergraduate education identified by the UK General Medical Council...
April 27, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28449232/safety-pharmacokinetics-and-pharmacologic-effects-of-the-selective-androgen-receptor-modulator-gsk2881078-in-healthy-men-and-postmenopausal-women
#17
Richard V Clark, Ann C Walker, Susan Andrews, Philip Turnbull, Jeffrey A Wald, Mindy H Magee
AIM: Selective androgen receptor modulators (SARMs) induce anabolic effects on muscle without the adverse effects of androgenic steroids. In this first-in-human study, we report safety, tolerability, pharmacokinetics (PK), and pharmacodynamics of the SARM GSK2881078. METHODS: In Part A, healthy young men (n = 10) received a single dose of study drug (0 mg, 0.05 mg, 0.1 mg, 0.2 mg GSK2881078 or matching-placebo). In Part B, repeat-dose cohorts in men (n = 65) were 0...
April 27, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28432691/tenapanor-administration-and-the-activity-of-the-h-coupled-transporter-pept1-in-healthy-volunteers
#18
Susanne Johansson, David P Rosenbaum, Johan Palm, Bergur Stefansson, Mikael Knutsson, Eleanor A Lisbon, Constanze Hilgendorf
AIM: Tenapanor (RDX5791/AZD1722), an inhibitor of gastrointestinal Na(+) /H(+) exchanger NHE3, is being evaluated for the treatment of patients with constipation-predominant irritable bowel syndrome and the treatment of hyperphosphataemia in patients with chronic kidney disease on dialysis. By reducing intestinal H(+) secretion, inhibition of NHE3 by tenapanor could indirectly affect H(+) -coupled transporter activity, leading to drug-drug interactions. We investigated the effect of tenapanor on the activity of the H(+) -coupled peptide transporter PepT1 via assessment of the pharmacokinetics of cefadroxil - a compound transported by PepT1 - in healthy volunteers...
April 22, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28429533/impact-of-adverse-drug-events-and-treatment-satisfaction-on-patient-adherence-with-antihypertensive-medication-a-study-in-ambulatory-patients
#19
Derbew Fikadu Berhe, Katja Taxis, Flora M Haaijer-Ruskamp, Afework Mulugeta, Yewondwossen Tadesse Mengistu, Johannes G M Burgerhof, Peter G M Mol
OBJECTIVE: To evaluate the impact of adverse drug events (ADEs) and treatment satisfaction on antihypertensive medication adherence. METHODS: A cross-sectional study was conducted in six public hospitals in Ethiopia. We included adult ambulatory patients on antihypertensive medication. Adherence was measured with the 8-point Morisky Medication Adherence Scale (MMAS-8), categorized in low (0-5), medium (6-7), and high (=8) adherence. Treatment satisfaction was measured using the Treatment Satisfaction Questionnaire for Medication (TSQM) version 1...
April 21, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28429492/body-weight-gender-and-pregnancy-affect-enantiomer-specific-ketorolac-pharmacokinetics
#20
Pyry A Välitalo, Heidi Kemppainen, Aida Kulo, Anne Smits, Kristel van Calsteren, Klaus T Olkkola, Jan de Hoon, Catherijne A J Knibbe, Karel Allegaert
AIMS: Although ketorolac analgesia is linked only to the S-enantiomer, there is limited information on the stereo-selective pharmacokinetics of ketorolac. We studied the stereo-selective pharmacokinetics of ketorolac in a pooled dataset of two studies, with women at delivery and 4-5 months postpartum, and males and non-pregnant females. METHODS: Non-linear mixed effect modeling was used to evaluate stereo-selective pharmacokinetics of ketorolac tromethamine after single intravenous injection immediately after delivery (n = 41), 4-5 months postpartum (n = 8, paired), and in non-pregnant female (n = 14) and male (n = 12) subjects...
April 21, 2017: British Journal of Clinical Pharmacology
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