Article
Pharmacology & Pharmacy
Joanna Parkinson, Corina Dota, Christian Kaellgren, Christer Gottfridsson, Magnus Bjursell, Shira Perl, Thomas Kornicke, Dinko Rekic, Susanne Johansson
Summary: This study evaluated the risk of QT prolongation for the combination of verinurad and allopurinol through a thorough QT/QTc study. The results showed that verinurad and allopurinol treatment did not induce QTcF prolongation at the highest clinically relevant exposures, as the effect on Delta Delta QTcF was below the regulatory concern threshold. The study used a randomized, placebo-controlled, double-blind, three-period, crossover design and involved 24 healthy volunteers.
BRITISH JOURNAL OF CLINICAL PHARMACOLOGY
(2023)
Article
Microbiology
Lori M. Newman, Martin Kankam, Aya Nakamura, Tom Conrad, John Mueller, John O'Donnell, Blaire L. Osborn, Kenan Gu, George A. Saviolakis
Summary: The TQT study confirmed the cardiac safety of zoliflodacin, showing no clinically meaningful increase in QT prolongation with single oral doses. The drug was well tolerated without any clinically significant effects on heart rate or ECG morphology, indicating a favorable assessment of cardiac safety for zoliflodacin.
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
(2021)
Article
Medicine, Research & Experimental
Benny M. Amore, Clay T. Cramer, Diane E. MacDougall, William J. Sasiela, Maurice G. Emery
Summary: Bempedoic acid, an approved inhibitor for hypercholesterolemia, was found to have weak binding potency to the hERG potassium channel and did not cause QTc prolongation in healthy subjects, as shown in both in vitro and animal studies.
CTS-CLINICAL AND TRANSLATIONAL SCIENCE
(2021)
Article
Endocrinology & Metabolism
Christian R. Juhl, Josephine Burgdorf, Cecilie Knudsen, Anniek F. Lubberding, Simon Veedfald, Jonas L. Isaksen, Bolette Hartmann, Ruth Frikke-Schmidt, Thomas Mandrup-Poulsen, Jens J. Holst, Jorgen K. Kanters, Signe S. Torekov
Summary: In young individuals, moxifloxacin, a K(v)11.1 channel blocker, prolonged QT interval, decreased glucose levels, increased muscle insulin sensitivity, and led to more frequent episodes of hypoglycaemia.
DIABETES OBESITY & METABOLISM
(2023)
Article
Mathematical & Computational Biology
Yuhao Deng, Fangyi Chen, Yang Li, Kaihuan Qian, Rui Wang, Xiao-Hua Zhou
Summary: The article introduces two new methods for estimating time-matched treatment effects under the MVN model, with the covariance structure being utilized to construct powerful tests for QT/QTc prolongation. Simulation results demonstrate that the proposed estimators have smaller mean square error and the tests have high power to control the type I error rate.
STATISTICS IN MEDICINE
(2021)
Article
Clinical Neurology
Zhenghe Yu, Li Han, Pan Yan, Wenjuan Liu, Lishan Ren, You Xu, Lili Yang, Lisha Ma, Yi Liu, Shengdong Wang
Summary: Insomnia disorder is associated with impairment in cognitive performance. Doxepin and zolpidem were both effective in improving sleep quality, but doxepin was more effective in improving executive function in patients with insomnia disorder.
SLEEP AND BREATHING
(2023)
Article
Pharmacology & Pharmacy
Borje Darpo, Derek J. Leishman
Summary: Since 2015, concentration-QTc (C-QTc) analysis has been used to replace the thorough QT (TQT) study with serial ECGs in routine clinical pharmacology studies. The recent revision of the S7B/E14 Q & A document has allowed the inclusion of nonclinical assays/studies in regulatory decisions. If negative hERG and non-rodent in vivo studies are conducted according to best practices, the requirement to exclude a QTc effect of >10 milliseconds in healthy subjects can be reduced. ECG evaluation at the therapeutic dose in patients can be used to determine the likelihood of proarrhythmic effects.
JOURNAL OF CLINICAL PHARMACOLOGY
(2023)
Article
Pharmacology & Pharmacy
Andrea Henrich, Pierre-Eric Juif, Jasper Dingemanse, Andreas Krause
Summary: The potential QT prolongation effect of Clazosentan was investigated through a thorough QT study, revealing a delayed effect associated with vomiting. Nonlinear mixed-effects modeling was used to characterize the concentration-QT relationship considering hysteresis, with pharmacokinetics best described by a linear two-compartment model. Despite apparent differences between subjects with and without vomiting, vomiting did not have a statistically significant influence on QT prolongation.
JOURNAL OF PHARMACOKINETICS AND PHARMACODYNAMICS
(2021)
Article
Pharmacology & Pharmacy
Ryuichi Kambayashi, Ai Goto, Hiroko Izumi-Nakaseko, Ichiro Oikawa, Naoki Ikeda, Kazuki Matsuda, Yoshinori Takei, Akio Matsumoto, Yuji Kumagai, Atsushi Sugiyama
Summary: This study investigated the impact of a lack of placebo control on the interpretation of results in thorough QT/QTc (TQT) studies. The analysis showed that the lack of placebo control did not influence the interpretation of TQT study results in both central-tendency and concentration-response analyses, in line with the updated E14/S7B Q & As.
JOURNAL OF PHARMACOLOGICAL SCIENCES
(2022)
Article
Multidisciplinary Sciences
Luciane Nunes de Sousa Casavechia, Antonio Carlos Meireles, Evandro Schapira, Rodrigo Antonio Brant Fernandes, Arthur Gustavo Fernandes
Summary: The study aimed to compare the rates of postoperative infectious endophthalmitis before and after the introduction of intracameral antibiotic prophylaxis with cefuroxime (ATB-P IC) in cataract surgery. The results showed a significantly lower rate of endophthalmitis in the group with ATB-P IC compared to the control group without the protocol.
SCIENTIFIC REPORTS
(2023)
Article
Cardiac & Cardiovascular Systems
Neha Mantri, Meng Lu, Jonathan G. Zaroff, Neil Risch, Thomas Hoffmann, Akinyemi Oni-Orisan, Catherine Lee, Eric Jorgenson, Carlos Iribarren
Summary: This study tracked 61,455 members of an integrated healthcare delivery system in Northern California and found an association between Long QT syndrome and the risk of cardiovascular disease and all-cause mortality. The results demonstrate that longitudinal information from serial ECGs can improve the ability to predict cardiovascular disease outcomes.
JOURNAL OF THE AMERICAN HEART ASSOCIATION
(2021)
Article
Pharmacology & Pharmacy
Uta Schilling, Andrea Henrich, Clemens Muehlan, Andreas Krause, Jasper Dingemanse, Mike Ufer
Summary: The study showed that daridorexant does not affect cardiac repolarization at therapeutic and supratherapeutic doses, as evidenced by the absence of relevant QT prolongation.
CLINICAL DRUG INVESTIGATION
(2021)
Article
Pharmacology & Pharmacy
Michael Lissy, Valentin Demmel, Richard Sachse, Nicola Ammer, Nicky Kelepouris, Vlady Ostrow
Summary: The study indicates a potential risk of cardiac repolarization prolongation with macimorelin, but minimal impact on other electrocardiogram parameters. The drug shows good safety and tolerability profiles.
CLINICAL PHARMACOLOGY IN DRUG DEVELOPMENT
(2021)
Article
Medicine, General & Internal
Abid Ullah, Shujaat Ahmad, Niaz Ali, Haya Hussain, Mamdouh Allahyani, Mazen Almehmadi, Ahad Amer Alsaiari, Osama Abdulaziz, Feras Almarshad, Syeda Hajira Bukhari
Summary: This study assessed the impact of moxifloxacin and gemifloxacin on QT intervals in cardiac patients. The findings showed that moxifloxacin caused a significantly greater prolongation of QT interval compared to gemifloxacin. It is concluded that both drugs have the potential for QT interval prolongation, caution should be exercised when prescribing them to cardiac patients.
Article
Pharmacology & Pharmacy
Fabrizio Stocchi, Elizabeth L. Peckham, Maria Francesca De Pandis, Ken Sciarappa, Robert Kleiman, Felix Agbo, C. Warren Olanow, David Blum, Bradford Navia
Summary: A randomized thorough QT study evaluated the effects of apomorphine sublingual film on cardiac conduction parameters in Parkinson's disease patients during OFF episodes. The study found no clinically significant effect on QT interval.
CLINICAL PHARMACOLOGY IN DRUG DEVELOPMENT
(2022)