J
John H. Powers
Researcher at George Washington University
Publications - 137
Citations - 5814
John H. Powers is an academic researcher from George Washington University. The author has contributed to research in topics: Clinical trial & Medicine. The author has an hindex of 29, co-authored 121 publications receiving 4687 citations. Previous affiliations of John H. Powers include Leidos & University of Nottingham.
Papers
More filters
Journal ArticleDOI
Patient-Reported Outcomes to Support Medical Product Labeling Claims: FDA Perspective
Donald L. Patrick,Laurie B. Burke,John H. Powers,Jane Scott,Edwin P. Rock,Sahar Dawisha,Robert T. O'Neill,Dianne L. Kennedy +7 more
TL;DR: Developing and use of patient-reported outcomes in clinical trials to evaluate medical products and major challenges from Food and Drug Administration's perspective in using PRO instruments, measures, and end points to support treatment benefit claims in product labeling are reviewed.
Journal ArticleDOI
Development of the Flu-PRO: A patient-reported outcome (PRO) instrument to evaluate symptoms of influenza
John H. Powers,M. Lourdes Guerrero,Nancy Kline Leidy,Mary P. Fairchok,Mary P. Fairchok,Mary P. Fairchok,Alice Rosenberg,Andres Hernandez,Sonja Stringer,Christina Schofield,Patricia Rodríguez-Zulueta,Katherine Kim,Patrick Danaher,Hilda Ortega-Gallegos,Elizabeth D. Bacci,Nathaniel Stepp,Arturo Galindo-Fraga,Kristina J. St. Clair,Michael Rajnik,Erin Mcdonough,Michelande Ridore,Michelande Ridore,John C. Arnold,Eugene V. Millar,Eugene V. Millar,Guillermo M. Ruiz-Palacios +25 more
TL;DR: Results show the 37-item Flu-PRO is a content valid measure of influenza symptoms in adults with a confirmed diagnosis of influenza.
Journal ArticleDOI
Biomarkers and surrogate endpoints in clinical trials
TL;DR: In insight into why indirect measures such as biomarkers may fail to provide reliable evidence about the benefit-to-risk profile of interventions, the definitions of clinically meaningful endpoints and surrogate endpoints are discussed, and examples from recent clinical trials are provided.
Journal ArticleDOI
Fluoroquinolone-Resistant Campylobacter Species and the Withdrawal of Fluoroquinolones from Use in Poultry: A Public Health Success Story
TL;DR: Clinicians are likely to continue to encounter patients with fluoroquinolone-resistant Campylobacter infection and other enteric infection because of the continued circulation of fluoroquol one-time-use enrofloxacin in poultry flocks and in persons returning from foreign travel who have acquired a fluoroQO2-resistantEnteric infection while abroad.
Journal ArticleDOI
World Health Organization Ranking of Antimicrobials According to Their Importance in Human Medicine: A Critical Step for Developing Risk Management Strategies for the Use of Antimicrobials in Food Production Animals
Peter Collignon,John H. Powers,John H. Powers,John H. Powers,Tom Chiller,Awa Aidara-Kane,Frank Møller Aarestrup +6 more
TL;DR: The World Health Organization has developed and applied criteria to rank antimicrobials according to their relative importance in human medicine, and this ranking allows stakeholders to focus risk management efforts on drugs used in food animals that are the most important to human medicine and, thus, need to be addressed most urgently.