Correction to: European Review for Medical and Pharmacological Sciences 2024; 28 (1): 411-418. DOI: 10.26355/eurrev_202401_34930-published online on January 16, 2024. After publication, the authors have applied some corrections to the galley proof: • In the Patients and Methods section of the abstract, "National Health System" is corrected to "National Health Service". • In the Conclusions section of the abstract, "SC PEG-IFN-β-1a and IFN- β-1a" is corrected to "PEG-IFN-β-1a and SC IFN-β-1a". • In the Population section, the study period "January 1st 2015 to December 31st 2019" was not reported; therefore, this specification has been added to the text. • The legend of Figure 1 was wrongly reported as the same as Table I. The correct title of Figure 1 is "Study flow diagram". • Under Tables I, II, and III, "interferon beta 1a IFN-β-1a" is corrected to "interferon beta 1a (IFN-β-1a)". • In Table III, "CS Glatiramer acetate" is corrected to "SC Glatiramer acetate". • In the Conclusions section, "SC IFN-β-1a SC" is corrected to "SC IFN-β-1a". • The funding section has been amended as follows: "This study was sponsored by Biogen Italia (Milan, Italy)." There are amendments to this paper. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/34930.