Contact us

Cobweb is developed and financed by the Centre de Recherche en Épidémiologie, French Equator center with the participation of the AP-HP Groupe hospitalier Cochin (Paris).

Our offices are located in the Hôtel-Dieu Hospital in Paris:
Centre d’épidémiologie clinique
Hôpital Hôtel-Dieu
1 place du Parvis Notre-Dame
75004 Paris, France

Get in touch via email:

The team:

Pr. Philippe Ravaudphilippe ravaud

Pr. Philippe Ravaud is a Professor of Epidemiology at Paris Descartes University and Adjunct Professor at the Mailman School of Public Health (Columbia University). He is director of the INSERM – Sorbonne Paris Cité Epidemiology and Statistics Research Centre (UMR 1153) and of the METHODS team in this centre. He is also director of Cochrane France. His primary focus is methodological research to assess treatments in chronic diseases. His research activities have been structured around the following themes: non-pharmacological treatments, burden of treatment, meta-analyses and network meta-analyses as well as research on research (and especially interventional research on research). He has authored more than 350 peer-reviewed papers, including 35 in the “Big 6” medical journals. Pr. Ravaud heads the scientific committee of COBWEB.

Pr. Isabelle BoutronIsabelle Boutron

Pr. Isabelle Boutron is a Professor of Epidemiology at Paris Descartes University, a researcher at the INSERM – Sorbonne Paris Cité Epidemiology and Statistics Research Centre (UMR 1153) in the METHODS team, and co-convenor of the Cochrane Bias Methods group. Her research activities mainly focus on internal and external validity of randomized and non-randomized studies evaluating interventions, the methodological issues when evaluating nonphamacologic treatments and the dissemination and interpretation of research results. She has published more than 100 peer-reviewed articles, 16 publications as 1st, 2nd or last author in high general medical journals (IF > 10) and 5 highly cited articles as first or second author. She is also an academic editor for the academic journals PLoS Medicine, PLoS ONE, BMC Medical Research Methodology and senior editor for Trials. Pr. Boutron is a member of the scientific committee of COBWEB.

Pr. Doug Altman Doug Altman

Pr. Doug Altman is an english statistician best known for his work on improving the reliability and reporting of medical research and for highly cited papers on statistical methodology. He was professor of statistics in medicine at the University of Oxford, founder and Director of Centre for Statistics in Medicine and Cancer Research UK Medical Statistics Group and co-founder of the international Equator Network for health research reliability. He was one of the co-founders of the international EQUATOR health research reliability network, and a member of the CONSORT Group from 1999. Pr. Altman was a member of the scientific committee of COBWEB.


Lina Ghosn

Lina GHOSN is a pharmacist with master degree in public health. Lina works as an epidemiologist at the Centre d’épidémiologie clinique.

Sally Hopewell

Sally Hopewell

Dr Sally Hopewell’s key areas of research expertise are in the design, conduct, and transparent reporting of randomized trials and systematic reviews. She has published a number of research studies in these areas including the development of key reporting guidelines such as the CONSORT Statement and PRISMA for Abstracts. Sally has a particular interest in clinical trial registration, data sharing, reporting of clinical trial protocols, pilot trials, and trials of non-pharmacological and complex interventions. She is an academic editor for PLoS ONE, sit on the editorial board for the journal Systematic Reviews and is also a member of the advisory board for Current Controlled Trials and the IDEAL Collaboration steering group. Dr Hopewell is a member of the scientific committee of COBWEB.

Elise Diard

Elise Diard

Communication Manager

Caroline Barnes

Caroline Barnes is a nurse with master degree in clinical epidemiology and statistics. Caroline worked at the Centre d’épidémiologie clinique and together with the team. She conducted the Proof of concept study to validate the tool.