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      Estudio del switch de adalimumab por su biosimilar en un hospital de tercer nivel Translated title: Study of adalimumab switch for its biosimilar in a tertiary hospital

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          Abstract

          Resumen Objetivos: Debido al aumento en el consumo de los medicamentos biológicos y al impacto que esto supone en el gasto hospitalario, los objetivos de este estudio son: calcular el ahorro económico anual generado por el switch a adalimumab biosimilar y analizar el porcentaje de pacientes que mantienen dicho tratamiento en un hospital de tercer nivel. Material y métodos: Estudio descriptivo, observacional, longitudinal, retrospectivo en el que se incluyeron un grupo de pacientes a los que se les realizó switch de adalimumab por su biosimilar cuando en la Comisión Asesora Técnica de medicamentos de la comunidad se autorizó dicho cambio. Resultados: De los 218 pacientes, nueve tuvieron que volver al medicamento original (4,13%). La motivación fue: pérdida de eficacia en cinco, reacción alérgica en tres y otro, un paciente pediátrico con dolor tras la inyección del medicamento biosimilar. El coste de adquisición en nuestro hospital de una unidad del medicamento original es de 195,6 €, mientras que del biosimilar es de 75 €. Si consideramos una posología cada dos semanas, ya que es la más frecuente en nuestros pacientes, el coste anual por paciente con el original sería de 5.085 € y con el biosimilar de 1.950 €. Por lo tanto, el ahorro anual que supone el cambio del medicamento original al biosimilar es de 683.560 €. Conclusiones: El switch de adalimumab original al biosimilar supone un importante ahorro económico sin que se reduzca la efectividad en el proceso de su enfermedad. Lo que contribuye a la eficiencia y sostenibilidad del sistema sanitario. En nuestra población, el 4,13% tuvo que volver al medicamento original. Sería conveniente realizar estudios en un número superior de pacientes y continuar su seguimiento a largo plazo para obtener conclusiones más firmes.

          Translated abstract

          Summary Objectives: Due to the increase in the consumption of biologic drugs and the impact this has on hospital spending, the objectives of this study are: to calculate the economic savings generated by switching to biosimilar adalimumab and to analyze the percentage of patients who maintain this treatment in a tertiary level hospital. Material and methods: Descriptive, observational, longitudinal, retrospective study that included a group of patients who were switched from adalimumab to its biosimilar, when the Technical Advisory Committee for Medicines of the community authorized the change. Results: Of the 218 patients, nine had to return to the original drug (4.13%). The motivation was: loss of efficacy in five, allergic reaction in three and the other was a pediatric patient with pain after injection of the biosimilar drug. The acquisition cost in our hospital of an unit of the original drug is €195.6, while that of the biosimilar is €75. If we consider a dosage every two weeks, since this is the most frequent in our patients, the annual cost per patient with the original drug would be €5,085 and with the biosimilar €1,950. Therefore, the annual savings from switching from the original drug to the biosimilar is €683,560. Conclusions: Switching from the original adalimumab to the biosimilar means significant economic savings without reducing the effectiveness of the disease process. This contributes to the efficiency and sustainability of the halthcare system. In our population, 4.13% had to return to the original drug. It would be advisable to carry out the study in a larger number of patients and to continue its long-term follow-up to obtain firmer conclusions.

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          Most cited references20

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          Scientific considerations in demonstrating biosimilarity to a reference product: guidance for industry

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            Biosimilars in the EU. Information guide for healthcare professionals

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              Guideline on similar biological medicinal products

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                Author and article information

                Journal
                ofil
                Revista de la OFIL
                Rev. OFIL·ILAPHAR
                Organización de Farmacéuticos Ibero-Latinoamericanos (Madrid, Madrid, Spain )
                1131-9429
                1699-714X
                September 2023
                : 33
                : 3
                : 253-257
                Affiliations
                [1] La Rioja orgnameHospital Universitario San Pedro de Logroño orgdiv1Servicio de Farmacia España
                Article
                S1699-714X2023000300006 S1699-714X(23)03300300006
                10.4321/s1699-714x2023000300006
                366f1be2-8d56-4321-8ac7-68ac56f9222f

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 08 September 2021
                : 11 October 2021
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 20, Pages: 5
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                SciELO Spain

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                sustainability,savings,switch,Adalimumab,biosimilar,sostenibilidad,ahorro

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