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001-es BibID:	BIBFORM103015
035-os BibID:	(cikkazonosító)155 (Scopus)85130953245 (Wos)000805581400002
Első szerző:	Lefort, Mathilde
Cím:	Impact of methodological choices in comparative effectiveness studies : application in natalizumab versus fingolimod comparison among patients with multiple sclerosis / Lefort M., Sharmin S., Andersen J. B., Vukusic S., Casey R., Debouverie M., Edan G., Ciron J., Ruet A., De Seze J., Maillart E., Zephir H., Labauge P., Defer G., Lebrun-Frenay C., Moreau T., Berger E., Clavelou P., Pelletier J., Stankoff B., Gout O., Thouvenot E., Heinzlef O., Al-Khedr A., Bourre B., Casez O., Cabre P., Montcuquet A., Wahab A., Camdessanché J. P., Maurousset A., Ben Nasr H., Hankiewicz K., Pottier C., Maubeuge N., Dimitri-Boulos D., Nifle C., Laplaud D. A., Horakova D., Havrdova E. K., Alroughani R., Izquierdo G., Eichau S., Ozakbas S., Patti F., Onofrj M., Lugaresi A., Terzi M., Grammond P., Grand'Maison F., Yamout B., Prat A., Girard M., Duquette P., Boz C., Trojano M., McCombe P., Slee M., Lechner-Scott J., Turkoglu R., Sola P., Ferraro D., Granella F., Shaygannejad V., Prevost J., Maimone D., Skibina O., Buzzard K., Van der Walt A., Karabudak R., Van Wijmeersch B., Csepany T., Spitaleri D., Vucic S., Koch-Henriksen N., Sellebjerg F., Soerensen P. S., Hilt Christensen C. C., Rasmussen P. V., Jensen M. B., Frederiksen J. L., Bramow S., Mathiesen H. K., Schreiber K. I., Butzkueven H., Magyari M., Kalincik T., Leray E.
Dátum:	2022
ISSN:	1471-2288
Megjegyzések:	Background: Natalizumab and fingolimod are used as high-efficacy treatments in relapsing?remitting multiple sclerosis. Several observational studies comparing these two drugs have shown variable results, using diferent methods to control treatment indication bias and manage censoring. The objective of this empirical study was to elucidate the impact of methods of causal inference on the results of comparative effectiveness studies. Methods: Data from three observational multiple sclerosis registries (MSBase, the Danish MS Registry and French OFSEP registry) were combined. Four clinical outcomes were studied. Propensity scores were used to match or weigh the compared groups, allowing for estimating average treatment effect for treated or average treatment effect for the entire population. Analyses were conducted both in intention-to-treat and per-protocol frameworks. The impact of the positivity assumption was also assessed. Results: Overall, 5,148 relapsing?remitting multiple sclerosis patients were included. In this well-powered sample, the 95% confidence intervals of the estimates overlapped widely. Propensity scores weighting and propensity scores matching procedures led to consistent results. Some differences were observed between average treatment effect for the entire population and average treatment effect for treated estimates. Intention-to-treat analyses were more conservative than per-protocol analyses. The most pronounced irregularities in outcomes and propensity scores were introduced by violation of the positivity assumption. Conclusions: This applied study elucidates the influence of methodological decisions on the results of comparative effectiveness studies of treatments for multiple sclerosis. According to our results, there are no material differences between conclusions obtained with propensity scores matching or propensity scores weighting given that a study is sufficiently powered, models are correctly specified and positivity assumption is fulfilled.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	BMC Medical Research Methodology. - 22 : 1 (2022), p. 1-14. -
További szerzők:	Sharmin, Sifat Andersen, Johanna Balslev Vukusic, Sandra Casey, Romain Debouverie, Marc Edan, Gilles Ciron, Jonathan Ruet, Aurélie De Seze, Jérôme Maillart, Elisabeth Zephir, Hélène Labauge, Pierre Defer, Gilles Lebrun-Frenay, Christine Moreau, Thibault Berger, Eric Clavelou, Pierre Pelletier, Jean Stankoff, Bruno Gout, Olivier Thouvenot, Eric Heinzlef, Olivier Al-Khedr, Abdullatif Bourre, Bertrand Casez, Olivier Cabre, Philippe Montcuquet, Alexis Wahab, Abir Camdessanche, Jean-Philippe Maurousset, Aude Ben Nasr, Haifa Hankiewicz, Karolina Pottier, Corinne Maubeuge, Nicolas Dimitri-Boulos, D. Nifle, Chantal Laplaud, David Horakova, Dana Havrdova, Eva Alroughani, Raed Izquierdo, Guillermo Eichau, Sara Ozakbas, Serkan Patti, Francesco Onofrj, Marco Lugaresi, Alessandra Terzi, Murat Grammond, Pierre Grand'Maison, Francois Yamout, Bassem Prat, Alexandre Girard, Marc Duquette, Pierre Boz, Cavit Trojano, Maria McCombe, Pamela Slee, Mark Lechner-Scott, Jeannette Turkoglu, Recai Sola, Patrizia Ferraro, Diana Granella, Franco Shaygannejad, Vahid Prevost, Julie Maimone, Davide Skibina, Olga Buzzard, Katherine Walt, Anneke van der Karabudak, Rana Van Wijmeersch, Bart Csépány Tünde (1956-) (neurológus, pszichiáter) Spitaleri, Daniele Vucic, Steve Koch-Henriksen, Niels Sellebjerg, Finn Thorup Soerensen, Per Soelberg Hilt Christensen, Claudia C. Rasmussen, Peter Vestergaard Jensen, Michael Broksgaard Frederiksen, Jette Lautrup Bramow, Stephan Mathiesen, Henrik Kahr Schreiber, Karen Butzkueven, Helmut Magyari Melinda Kalincik, Tomas Leray, Emmanuelle
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