Systematic review of the empirical evidence of study publication bias and outcome reporting bias—an updated review
K Dwan, C Gamble, PR Williamson, JJ Kirkham… - PloS one, 2013 - journals.plos.org
Background The increased use of meta-analysis in systematic reviews of healthcare
interventions has highlighted several types of bias that can arise during the completion of a …
interventions has highlighted several types of bias that can arise during the completion of a …
Publication bias: what is it? How do we measure it? How do we avoid it?
Publication bias occurs when results of published studies are systematically different from
results of unpublished studies. The term “dissemination bias” has also been recommended …
results of unpublished studies. The term “dissemination bias” has also been recommended …
SPIRIT 2013 statement: defining standard protocol items for clinical trials
The protocol of a clinical trial serves as the foundation for study planning, conduct, reporting,
and appraisal. However, trial protocols and existing protocol guidelines vary greatly in …
and appraisal. However, trial protocols and existing protocol guidelines vary greatly in …
Increasing value and reducing waste: addressing inaccessible research
The methods and results of health research are documented in study protocols, full study
reports (detailing all analyses), journal reports, and participant-level datasets. However …
reports (detailing all analyses), journal reports, and participant-level datasets. However …
[PDF][PDF] SPIRIT 2013 Statement: defining standard protocol items for clinical trials
The protocol of a clinical trial serves as the foundation for study planning, conduct, reporting,
and appraisal. However, trial protocols and existing protocol guidelines vary greatly in …
and appraisal. However, trial protocols and existing protocol guidelines vary greatly in …
Timing and completeness of trial results posted at ClinicalTrials. gov and published in journals
C Riveros, A Dechartres, E Perrodeau, R Haneef… - PLoS …, 2013 - journals.plos.org
Background The US Food and Drug Administration Amendments Act requires results from
clinical trials of Food and Drug Administration–approved drugs to be posted at ClinicalTrials …
clinical trials of Food and Drug Administration–approved drugs to be posted at ClinicalTrials …
Fishing, commitment, and communication: A proposal for comprehensive nonbinding research registration
Social scientists generally enjoy substantial latitude in selecting measures and models for
hypothesis testing. Coupled with publication and related biases, this latitude raises the …
hypothesis testing. Coupled with publication and related biases, this latitude raises the …
The quality of registration of clinical trials: still a problem
RF Viergever, G Karam, A Reis, D Ghersi - PloS one, 2014 - journals.plos.org
Introduction The benefits of clinical trials registration include improved transparency on
clinical trials for healthcare workers and patients, increased accountability of trialists, the …
clinical trials for healthcare workers and patients, increased accountability of trialists, the …
Impact of document type on reporting quality of clinical drug trials: a comparison of registry reports, clinical study reports, and journal publications
B Wieseler, MF Kerekes, V Vervoelgyi, N McGauran… - BMJ, 2012 - bmj.com
Objective To investigate to what extent three types of documents for reporting clinical trials
provide sufficient information for trial evaluation. Design Retrospective analysis Data …
provide sufficient information for trial evaluation. Design Retrospective analysis Data …
[PDF][PDF] Declaración SPIRIT 2013: definición de los elementos estándares del protocolo de un ensayo clínico
El protocolo de un ensayo clínico es la base para planificar, ejecutar, publicar y evaluar el
ensayo. Sin embargo, los protocolos y las guías que existen para su elaboración varían …
ensayo. Sin embargo, los protocolos y las guías que existen para su elaboración varían …