نتایج جستجو برای: randomized control trials

تعداد نتایج: 1650416  

Journal: :Physical therapy 2008
Susan Armijo Olivo Luciana Gazzi Macedo Inae Caroline Gadotti Jorge Fuentes Tasha Stanton David J Magee

BACKGROUND AND PURPOSE The methodological quality of randomized controlled trials (RCTs) is commonly evaluated in order to assess the risk of biased estimates of treatment effects. The purpose of this systematic review was to identify scales used to evaluate the methodological quality of RCTs in health care research and summarize the content, construction, development, and psychometric properti...

Journal: :Nature 1995

Arash Shahravan, Bahareh Fatemipour Batoolasadat Mousavi-Fard Maryam Fatemipour Mehdi Vahedi,

BACKGROUND AND AIM: Randomized controlled trials (RCTs) are the gold standard for providing evidence in clinical research. The present study was performed with the objective to assess the quality of reports of RCTs in orthodontics in PubMed-indexed journals published by Iranian authors from 2007 to 2017.METHODS: All the articles on orthodontics published from 2007 to 2017 and indexed in PubMed ...

2017
Ya-Guang Peng Xiao-Lu Nie Jing-Jing Feng Xiao-Xia Peng

whAt Is the PRoBleM? Different from trials for regulatory approvals of new interventions aimed to test the efficacy, comparative effectiveness research (CER) is the direct comparison of existing health‐care interventions (compared with active controls) to examine which treatment works best, for whom, and under what settings.[1] Therefore, CER is indispensable to assist consumers, clinicians, pu...

Journal: :Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research 2013
Melanie Calvert Jane Blazeby Douglas G Altman Dennis A Revicki David Moher Michael D Brundage

The CONSORT (Consolidated Standards of Reporting Trials) Statement aims to improve the reporting of randomized controlled trials (RCTs); however, it lacks guidance on the reporting of patient-reported outcomes (PROs), which are often inadequately reported in trials, thus limiting the value of these data. In this article, we describe the development of the CONSORT PRO extension based on the meth...

Journal: :Family practice 2007
A Schedlbauer K Schroeder T Fahey

OBJECTIVE Poor patient adherence to lipid-lowering medication is a major contributory factor in the lack of success in treating hyperlipidaemia. The objective of this review was to assess the effect of adherence-enhancing interventions for lipid-lowering medication. DESIGN Systematic review of randomized controlled trials (RCTs). DATA SOURCES Cochrane Central Register of Controlled Trials (...

Journal: :Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research 2014
G Pietri P Masoura

Randomized controlled trials (RCTs) have historically been considered the primary source of evidence to support decision-making in market access and reimbursement. However, thanks to significant progress in capturing data through computerized systems and making these data available, real-world evidence (RWE) has been increasingly considered by manufacturers and payers. Despite initiatives and r...

Journal: :JAMA 2014
Benjamin Kasenda Erik von Elm John You Anette Blümle Yuki Tomonaga Ramon Saccilotto Alain Amstutz Theresa Bengough Joerg J Meerpohl Mihaela Stegert Kari A O Tikkinen Ignacio Neumann Alonso Carrasco-Labra Markus Faulhaber Sohail M Mulla Dominik Mertz Elie A Akl Dirk Bassler Jason W Busse Ignacio Ferreira-González Francois Lamontagne Alain Nordmann Viktoria Gloy Heike Raatz Lorenzo Moja Rachel Rosenthal Shanil Ebrahim Stefan Schandelmaier Sun Xin Per O Vandvik Bradley C Johnston Martin A Walter Bernard Burnand Matthias Schwenkglenks Lars G Hemkens Heiner C Bucher Gordon H Guyatt Matthias Briel

IMPORTANCE The discontinuation of randomized clinical trials (RCTs) raises ethical concerns and often wastes scarce research resources. The epidemiology of discontinued RCTs, however, remains unclear. OBJECTIVES To determine the prevalence, characteristics, and publication history of discontinued RCTs and to investigate factors associated with RCT discontinuation due to poor recruitment and w...

2009
Andrzej Sitarz

We investigate examples of quasi-spectral triples over two-dimensional commutative sphere, which are obtained by modifying the order-one condition. We find quasi-Dirac operators and calculate the index paring with a representant of K-theory class to prove that the quasispectral triples are mutually inequivalent. MSC 2000: 58B34, 46L87, 34L40

Journal: :Drug discovery today 2018
Shomesh E Chaudhuri Martin P Ho Telba Irony Murray Sheldon Andrew W Lo

We apply Bayesian decision analysis (BDA) to incorporate patient preferences in the regulatory approval process for new therapies. By assigning weights to type I and type II errors based on patient preferences, the significance level (α) and power (1-β) of a randomized clinical trial (RCT) for a new therapy can be optimized to maximize the value to current and future patients and, consequently,...

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