Importance: Age-related macular degeneration (AMD) is a highly prevalent and debilitating retinal condition that affects more than 200 million people globally, with the severe late-stage forms-neovascular AMD (nAMD) and geographic atrophy (GA)-affecting more than 11 million people globally. However, much is unknown about the economic burden of the disease.
Objective: To estimate the economic burden associated with late-stage AMD in Bulgaria, Germany, and the US at the societal level.
J Aerosol Med Pulm Drug Deliv
June 2024
Multi-attribute methods employing mass spectrometry are applied throughout the biopharmaceutical industry for product and process characterization purposes but are not yet widely accepted as a method for batch release and stability testing under the good manufacturing practice (GMP) regime, due to limited experience and level of comfort with the technical, compliance and regulatory aspects of its implementation at quality control (QC) laboratories. This article is the second part of a two-tiered publication aiming at providing guidance for implementation of the multi-attribute method by peptide mapping liquid chromatography mass spectrometry (MAM) in a QC laboratory. The first part [1] focuses on technical considerations, while this second part provides considerations related to GMP compliance and regulatory aspects.
View Article and Find Full Text PDFMulti-attribute methods employing mass spectrometry are applied throughout the biopharmaceutical industry for product and process characterization purposes but are not yet widely accepted as a method for batch release and stability testing under good manufacturing practice (GMP) due to limited experience and level of comfort with the technical, compliance and regulatory aspects of its implementation at quality control (QC) laboratories. Here, current literature related to the development and application of the multi-attribute method by peptide mapping liquid chromatography mass spectrometry (MAM) is compiled with the aim of providing guidance for the implementation of MAM in a QC laboratory. This article, focusing on technical considerations, is the first part of a two-tiered publication, whereby the second part will focus on GMP compliance and regulatory aspects.
View Article and Find Full Text PDFJ Aerosol Med Pulm Drug Deliv
October 2022
Agrochemicals frequently undergo various chemical and metabolic transformation reactions in the environment that often result in a wide range of derivates that must be comprehensively characterized to understand their toxicity profiles and their persistence and outcome in the environment. In the development phase, this typically involves a major effort in qualitatively identifying the correct chemical isomer(s) of these derivatives from the many isomers that could potentially be formed. Liquid chromatography-mass spectrometry and nuclear magnetic resonance (NMR) spectroscopy are often used in attempts to characterize such environment transformation products.
View Article and Find Full Text PDFIndividuals with fetal alcohol spectrum disorder (FASD) experience a range of neurodevelopmental challenges, often compounded by social and environmental adversity. One of the most concerning outcomes that can be associated with FASD is involvement in the justice system, where individuals with FASD are vastly over-represented. Individuals with FASD who are both justice-involved and Indigenous experience added layers of marginalization.
View Article and Find Full Text PDFBackground: Fractional exhaled nitric oxide (FeNO) has potential as a prognostic biomarker in asthma, but its prognostic value among other recognised indicators is unclear. We assessed the added prognostic value of baseline FeNO to blood eosinophil count and prior severe asthma exacerbations for subsequent exacerbations.
Methods: In this post-hoc analysis of the 52-week, double-blind, phase 3 LIBERTY ASTHMA QUEST study, we identified 620 patients with moderate-to-severe asthma who were randomly assigned to placebo; had uncontrolled asthma with inhaled glucocorticoids plus up to two controllers; one or more exacerbations in the previous year; FEV percent predicted 40-80%; FEV reversibility of 12% or higher and 200 mL; Asthma Control Questionnaire (ACQ-5) score of 1·5 or higher; and complete data on baseline type 2 biomarkers (FeNO, eosinophils, and total IgE) with no baseline minimum requirement.
Aim To compare the relative efficiencies of skin excisions in primary and secondary care. Methods We compared the benign: malignant ratio for specimens referred by General Practice, General Surgery and the Skin Cancer Service to the regional pathology laboratory over one month. We used cost minimization analysis to compare the relative efficiencies of the services.
View Article and Find Full Text PDFPeople with lived experience are individuals who have first-hand experience of the medical condition(s) being considered. The value of including the viewpoints of people with lived experience in health policy, health care, and health care and systems research has been recognized at many levels, including by funding agencies. However, there is little guidance or established best practices on how to include non-academic reviewers in the grant review process.
View Article and Find Full Text PDFIn this retrospective study of a randomised trial of simtuzumab in idiopathic pulmonary fibrosis (IPF), prodromal decline in forced vital capacity (FVC) was significantly associated with increased risk of mortality, respiratory and all-cause hospitalisations, and categorical disease progression. Predictive modelling of progression-free survival event risk was used to assess the effect of population enrichment for patients at risk of rapid progression of IPF; C-index values were 0.64 (death), 0.
View Article and Find Full Text PDFJ Allergy Clin Immunol Pract
February 2020
Background: Dupilumab blocks the shared receptor component for IL-4 and IL-13, key drivers of type 2 inflammation, including IgE-mediated allergic inflammation in asthma. In the LIBERTY ASTHMA QUEST (NCT02414854) study, dupilumab reduced severe asthma exacerbations and improved forced expiratory volume in 1 second (FEV) in patients with uncontrolled, moderate-to-severe asthma with greater efficacy observed in patients with elevated type 2 inflammatory biomarkers (blood eosinophils and fractional exhaled nitric oxide) at baseline.
Objective: We assessed dupilumab's effect on key asthma outcomes in QUEST patients with/without evidence of allergic asthma (total serum IgE ≥30 IU/mL and ≥1 perennial aeroallergen-specific IgE ≥0.
Several common and rare genetic variants have been associated with idiopathic pulmonary fibrosis, a progressive fibrotic condition that is localized to the lung. To develop an integrated understanding of the rare and common variants located in multiple loci that have been reported to contribute to the risk of disease. We performed deep targeted resequencing (3.
View Article and Find Full Text PDFObjectives: To test whether a newly developed person-, theory- and evidence-based website about acupuncture helps patients make informed decisions about whether or not to use acupuncture for back pain.
Methods: A randomised online study compared a newly developed 'enhanced website' to a 'standard website'. The enhanced website provided evidence-based information in a person-based manner and targeted psychological constructs.
Background: Placebo effects and their underpinning mechanisms are increasingly well understood. However, this is poorly communicated to participants in placebo-controlled trials. For valid informed consent, participants should be informed about the potential benefits and risks of participating in placebo-controlled trials.
View Article and Find Full Text PDFWe evaluated performance characteristics and estimated the minimal clinically important difference (MCID) of data-driven texture analysis (DTA), a high-resolution computed tomography (HRCT)-derived measurement of lung fibrosis, in subjects with idiopathic pulmonary fibrosis (IPF).The study population included 141 subjects with IPF from two interventional clinical trials who had both baseline and nominal 54- or 60-week follow-up HRCT. DTA scores were computed and compared with forced vital capacity (FVC), diffusing capacity of the lung for carbon monoxide, distance covered during a 6-min walk test and St George's Respiratory Questionnaire scores to assess the method's reliability, validity and responsiveness.
View Article and Find Full Text PDFAppl Neuropsychol Child
January 2020
Early intervention for individuals with FASD is paramount, thus exploring factors that affect the diagnostic process is critical. This process can be complicated by challenges gathering background information, accurately evaluating higher-level cognitive skills across ages, and teasing apart the impact of life adversities from the effects of prenatal alcohol exposure. This study is a retrospective file review of 154 children (44% female; mean age 8.
View Article and Find Full Text PDFPurpose: Hyperpolarized Xe magnetic resonance imaging (MRI) using Dixon-based decomposition enables single-breath imaging of Xe in the airspaces, interstitial barrier tissues, and red blood cells (RBCs). However, methods to quantitatively visualize information from these images of pulmonary gas transfer are lacking. Here, we introduce a novel method to transform these data into quantitative maps of pulmonary ventilation, and Xe gas transfer to barrier and RBC compartments.
View Article and Find Full Text PDFRationale: Idiopathic pulmonary fibrosis (IPF) is an increasingly recognized, often fatal lung disease of unknown etiology.
Objectives: The aim of this study was to use whole-exome sequencing to improve understanding of the genetic architecture of pulmonary fibrosis.
Methods: We performed a case-control exome-wide collapsing analysis including 262 unrelated individuals with pulmonary fibrosis clinically classified as IPF according to American Thoracic Society/European Respiratory Society/Japanese Respiratory Society/Latin American Thoracic Association guidelines (81.
Background: Lysyl oxidase-like 2 (LOXL2) catalyses collagen cross-linking and is implicated in the pathogenesis of idiopathic pulmonary fibrosis (IPF). The aim of this study was to investigate the efficacy and safety of simtuzumab, a monoclonal antibody against LOXL2, in patients with IPF.
Methods: In this randomised, double-blind, phase 2 trial, we recruited patients aged 45-85 years with definite IPF diagnosed prior to 3 years of screening from 183 hospitals and respiratory clinics in 14 countries.
Introduction: Potential acupuncture patients seek out information about acupuncture from various sources including websites, many of which are unreliable. We aimed to create an informative, scientifically accurate and engaging website to educate patients about acupuncture for back pain and modify their beliefs in a way that might enhance its clinical effects.
Methods: We used psychological theory and techniques to design an evidence-based website, incorporating multimedia elements.
Background: Exploiting novel herbicidal modes of action is an important method to overcome the challenges faced by increasing resistance and regulatory pressure on existing commercial herbicides. Recent reports of inhibitors of enzymes in the non-mevalonate pathway of isoprenoid biosynthesis led to the design of a novel class of azolopyrimidines which were assessed for their herbicidal activity. Studies were also undertaken to determine the mode of action responsible for the observed herbicidal activity.
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