Prospective study to evaluate quality of life in amyotrophic lateral sclerosis

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative rare disease characterized by symptoms and signs in the upper and lower motor neurons, leading to progressive neuro-degeneration and muscle atrophy. Our objective was to analyse the quality of life (QoL) in patients with ALS and compare with general population and with patients with cancer. Prospective study from consecutive ALS patients in one center. In order to assess quality of life, during the first visit three questionnaires were administered: Amyotrophic Lateral Sclerosis Functional Rating Scale (ALSFRS-R), Short Form-36 (SF-36) and EuroQoL 5D (EQ-5D). We compared SF-36 of ALS patients with a reference population (n = 9151), and we compared the EQ-5D index score of ALS patients versus patients with cancer in the same area and in the same period (2015-2018). Between June 2015 and September 2017, 23 were included. The mean age was 65.1 ± 12.6 years and 56.5% were women. Compared with the general population, patients with ALS showed lowest QoL (p < 0.05) in all the dimensions, with a very important impairment in physical function (median: 0; p25-75: 0-10) and physical role (median: 0; p25-75: 0-6.25). In EQ-5D questionnaire, patients with ALS presented an EQ-5D index score of 0.21 ± 0.39 (mean ± standard deviation) with a visual analog scale (VAS) score of 0.32 ± 0.24. Compared with an oncological population, patients with ALS had a worse EQ-5D index score both clinically and statistically (0.21 ± 0.39 vs. 0.77 ± 0.27; p < 0.05). We demonstrate a poorer quality of life in patients with ALS is poor, and clinically and statistically worse than in patients with cancer or general population. New studies need to evaluate the impact of strategies in this population to improve the quality of life.