RT Journal Article T1 Cognitive Function with PCSK9 Inhibitors: A 24-Month Follow-Up Observational Prospective Study in the Real World—MEMOGAL Study A1 Seijas-Amigo, José A1 Mauriz-Montero, Mª José A1 Suárez Artime, Pedro A1 Gayoso-Rey, Mónica A1 Estany Gestal, Ana A1 Casas-Martínez, Antonia A1 González Freire, Lara A1 Rodríguez-Vázquez, Ana A1 Pérez-Rodríguez, Natalia A1 Villaverde-Piñeiro, Laura A1 Castro-Rubinos, Concepción A1 Espino-Faisán, Esther A1 Rodríguez Mañero, Moisés A1 Cordero, Alberto A1 González Juanatey, José Ramón A1 Paz-Couce, Adrián A1 Rodriguez-Penas, Diego A1 Cardeso-Paredes, Begoña A1 Seoane-Blanco, Ana A1 Moure-Gonzalez, María A1 Soler-Martín, Rita A1 Margusino-Framiñan, Luis A1 Suárez Rodríguez, Ana A1 Rodríguez Cobos, Marisol A1 Rojo-Valdés, Juan A1 Zarra Ferro, Irene A1 Lorenzo-Lorenzo, Karina A1 Casanova-Martinez, Cristina A1 Crespo-Diz, Carlos A1 Domínguez Guerra, María A1 González-Pereira, María Elena A1 Anido-García, María A1 Tajes-Gonzalez, Iveth Michelle A1 Mozo-Peñalver, Héctor A1 Silva-Lopez, Alicia A1 Rodríguez Sánchez, José Luis A1 García-Verde, María Jesús K1 PCSK9 Inhibitors K1 Monoclonal antibody proprotein K1 Cognitive function K1 Study AB IntroductionThe cognitive safety of monoclonal antibody proprotein convertase subtilisin/kexin type 9 inhibitors (PCSK9i) has been established in clinical trials, but not yet in real-world observational studies. We assessed the cognitive function in patients initiating PCSK9i, and differences in cognitive function domains, to analyze subgroups by the low-density lipoprotein cholesterol (LDL-C) achieved, and differences between alirocumab and evolocumab.MethodsThis has a multicenter, quasi-experimental design carried out in 12 Spanish hospitals from May 2020 to February 2023. Cognitive function was assessed using the Montreal Cognitive Assessment (MoCA).ResultsAmong 158 patients followed for a median of 99 weeks, 52% were taking evolocumab and 48% alirocumab; the mean change from baseline in MoCA score at follow-up was + 0.28 [95% CI (− 0.17 to 0.73; p = 0.216)]. There were no significant differences in the secondary endpoints—the visuospatial/executive domain + 0.04 (p = 0.651), naming domain − 0.01 (p = 0.671), attention/memory domain + 0.01 (p = 0.945); language domain − 0.10 (p = 0.145), abstraction domain + 0.03 (p = 0.624), and orientation domain − 0.05 (p = 0.224)—but for delayed recall memory the mean change was statistically significant (improvement) + 0.44 (p = 0.001). Neither were there any differences in the three stratified subgroups according to lowest attained LDL-C level—0–54 mg/dL, 55–69 mg/dL and ≥ 70 mg/dL; p = 0.454—or between alirocumab and evolocumab arms.ConclusionWe did not find effect of monoclonal antibody PCSK9i on neurocognitive function over 24 months of treatment, either in global MoCA score or different cognitive domains. An improvement in delayed recall memory was shown. The study showed no differences in the cognitive function between the prespecified subgroups, even among patients who achieved very low levels of LDL-C. There were no differences between alirocumab and evolocumab.RegistrationClinicalTtrials.gov Identifier number NCT04319081 PB Springer SN 1175-3277 YR 2023 FD 2023-08-23 LK http://hdl.handle.net/10347/31162 UL http://hdl.handle.net/10347/31162 LA eng NO American Journal of Cardiovascular Drugs (2023) 23:583–593 NO Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature DS Minerva RD 28 abr 2026