RT Journal Article T1 Effect of CYP4F2, VKORC1, and CYP2C9 in Influencing Coumarin Dose: A Single-Patient Data Meta-Analysis in More Than 15,000 Individuals. A1 Danese, Elisa A1 Raimondi, Sara A1 Montagnana, Martina A1 Tagetti, Angela A1 Langaee, Taimour A1 Borgiani, Paola A1 Ciccacci, Cinzia A1 Carcas, Antonio J A1 Borobia, Alberto M A1 Tong, Hoi Y A1 Dávila-Fajardo, Cristina A1 Rodrigues Botton, Mariana A1 Bourgeois, Stephane A1 Deloukas, Panos A1 Caldwell, Michael D A1 Burmester, Jim K A1 Berg, Richard L A1 Cavallari, Larisa H A1 Drozda, Katarzyna A1 Huang, Min A1 Zhao, Li-Zi A1 Cen, Han-Jing A1 Gonzalez-Conejero, Rocio A1 Roldan, Vanessa A1 Nakamura, Yusuke A1 Mushiroda, Taisei A1 Gong, Inna Y A1 Kim, Richard B A1 Hirai, Keita A1 Itoh, Kunihiko A1 Isaza, Carlos A1 Beltrán, Leonardo A1 Jiménez-Varo, Enrique A1 Cañadas-Garre, Marisa A1 Giontella, Alice A1 Kringen, Marianne K A1 Haug, Kari Bente Foss A1 Gwak, Hye Sun A1 Lee, Kyung Eun A1 Minuz, Pietro A1 Lee, Ming Ta Michael A1 Lubitz, Steven A A1 Scott, Stuart A1 Mazzaccara, Cristina A1 Sacchetti, Lucia A1 Genç, Ece A1 Özer, Mahmut A1 Pathare, Anil A1 Krishnamoorthy, Rajagopal A1 Paldi, Andras A1 Siguret, Virginie A1 Loriot, Marie-Anne A1 Kutala, Vijay Kumar A1 Suarez-Kurtz, Guilherme A1 Perini, Jamila A1 Denny, Josh C A1 Ramirez, Andrea H A1 Mittal, Balraj A1 Rathore, Saurabh Singh A1 Sagreiya, Hersh A1 Altman, Russ A1 Shahin, Mohamed Hossam A A1 Khalifa, Sherief I A1 Limdi, Nita A A1 Rivers, Charles A1 Shendre, Aditi A1 Dillon, Chrisly A1 Suriapranata, Ivet M A1 Zhou, Hong-Hao A1 Tan, Sheng-Lan A1 Tatarunas, Vacis A1 Lesauskaite, Vaiva A1 Zhang, Yumao A1 Maitland-van der Zee, Anke H A1 Verhoef, Talitha I A1 de Boer, Anthonius A1 Taljaard, Monica A1 Zambon, Carlo Federico A1 Pengo, Vittorio A1 Zhang, Jieying Eunice A1 Pirmohamed, Munir A1 Johnson, Julie A A1 Fava, Cristiano AB The cytochrome P450 (CYP)4F2 gene is known to influence mean coumarin dose. The aim of the present study was to undertake a meta-analysis at the individual patients level to capture the possible effect of ethnicity, gene-gene interaction, or other drugs on the association and to verify if inclusion of CYP4F2*3 variant into dosing algorithms improves the prediction of mean coumarin dose. We asked the authors of our previous meta-analysis (30 articles) and of 38 new articles retrieved by a systematic review to send us individual patients' data. The final collection consists of 15,754 patients split into a derivation and validation cohort. The CYP4F2*3 polymorphism was consistently associated with an increase in mean coumarin dose (+9% (95% confidence interval (CI) 7-10%), with a higher effect in women, in patients taking acenocoumarol, and in white patients. The inclusion of the CYP4F2*3 in dosing algorithms slightly improved the prediction of stable coumarin dose. New pharmacogenetic equations potentially useful for clinical practice were derived. YR 2019 FD 2019-02-17 LK http://hdl.handle.net/10668/13273 UL http://hdl.handle.net/10668/13273 LA en DS RISalud RD Mar 14, 2025