title: Head-to-head Comparative Studies: Challenges and Opportunities?
authors.affiliation: Department of Hepato-Gastroenterology and Inserm U954, Nancy University Hospital,Vandoeuvre-lès-Nancy, France.
authors.forename: Laurent
authors.initials: L
authors.lastname: Peyrin-Biroulet
authors.affiliation: Department of Hepato-Gastroenterology and Inserm U954, Nancy University Hospital,Vandoeuvre-lès-Nancy, France.
authors.forename: Anthony
authors.initials: A
authors.lastname: Lopez
authors.affiliation: IBD Centre, University of California San Diego, San Diego, CA, USA.
authors.forename: William
authors.initials: W
authors.lastname: Sandborn
mesh_terms: D000074099:Equivalence Trials as Topic; D006801:Humans; D015212:Inflammatory Bowel Diseases / Q000188:drug therapy*; D010919:Placebos / Q000627:therapeutic use; D016032:Randomized Controlled Trials as Topic / Q000941:ethics / Q000331:legislation & jurisprudence / Q000379:methods*
chemical_list: D010919:Placebos