Resumen
La atrofia muscular espinal 5q (AME) es una enfermedad de motoneurona, autosómica recesiva que causa debilidad en las extremidades, el tronco, el diafragma y en músculos bulbares; sin tratamiento puede llevar a discapacidad motora severa e incluso a la muerte. La Food and Drug Administration (FDA) y la Comisión Federal para la Protección contra Riesgos Sanitarios (COFEPRIS) aprobaron 3 terapias para aumentar la producción de proteína de supervivencia de la motoneurona (SMN) y mejorar la fuerza muscular y la calidad de vida de los pacientes: nusinersen, onasemnogene abeparvovec xioi y risdiplam. A pesar de que estas terapias han demostrado eficacia, al momento no es posible establecer cuál de ellas es superior en comparación con las otras. Lo más importante es establecer el diagnóstico de la enfermedad e iniciar cualquiera de los tratamientos disponibles para evitar mayor discapacidad funcional y prevenir la muerte. Los 3 tratamientos tienen diferentes mecanismos de acción y distintos efectos adversos y el uso de cada uno de ellos deberá individualizarse de acuerdo con el perfil del paciente.
Abstract
5q Spinal Muscular Atrophy (SMA) is an autosomal recessive motor neuron disease that causes weakness in the limbs, trunk, diaphragm, and bulbar muscles; without treatment it can lead to severe motor disability and even death. The Food and Drug administration (FDA) and COFEPRIS (Mexico’s Federal Committee for Protection against Sanitary Risks) have approved 3 therapies to increase the production of survival motor neuron (SMN) protein and improve muscle strength and quality of life in patients: nusinersen, onasemnogene abeparvovec xioi, and risdiplam. Despite the fact that these therapies have shown efficacy, at the moment it is not possible to establish which of them is superior compared to the others. The most important thing is to establish the diagnosis of the disease and start any of the available treatments to avoid further functional disability and prevent death. The 3 treatments have different mechanisms of action and different adverse effects, and the use of each of them must be individualized according to the patient's profile.
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