BACKGROUND: The current best practice suggests yearly magnetic resonance imaging (MRI) to monitor treatment response in multiple sclerosis (MS) patients. OBJECTIVE: To evaluate the current practice of clinicians changing MS treatment based on subclinical new MRI lesions alone. METHODS: Using MSBase, an international MS patient registry with MRI data, we analysed the probability of treatment change among patients with clinically silent new MRI lesions. RESULTS: A total of 8311 MRI brain scans of 4232 patients were identified. Around 26.9% (336/1247) MRIs with one new T2 lesion were followed by disease-modifying therapy (DMT) change, increasing to 50.2% (129/257) with six new T2 lesions. DMT change was twice as likely with new T1 contrast enhancing compared to new T2 lesions odds ratio (OR): 2.43, 95% confidence interval (CI): 2.00-2.96 vs OR: 1.26 (95% CI: 1.22-1.29). DMT change with new MRI lesions occurred most frequently with 'injectable' DMTs. The probability of switching therapy was greater only after high-efficacy therapies became available in 2007 (after, OR: 1.43, 95% CI: 1.28-1.59 vs before, OR: 0.98, 95% CI: 0.520-1.88). CONCLUSION: MS clinicians rely increasingly on MRI alone in their treatment decisions, utilizing low thresholds (1 new T2 lesion) for optimizing MS therapy. This signals a shift towards no evidence of disease activity (NEDA)-3 since high-efficacy therapies became available.
Silent lesions on MRI imaging - Shifting goal posts for treatment decisions in multiple sclerosis / Min, M; Spelman, T; Lugaresi, A; Boz, C; Spitaleri, D; Pucci, E; Grand'Maison, F; Granella, F; Izquierdo, G; Butzkueven, H; Sanchez-Menoyo, Jl; Barnett, M; Girard, M; Trojano, M; Grammond, P; Duquette, P; Sola, P; Alroughani, R; Hupperts, R; Vucic, S; Kalincik, T; Van Pesch, V; Lechner-Scott, J.. - In: MULTIPLE SCLEROSIS. - ISSN 1352-4585. - 24:12(2018), pp. 1569-1577. [10.1177/1352458518798147]
Silent lesions on MRI imaging - Shifting goal posts for treatment decisions in multiple sclerosis
Granella FInvestigation
;
2018-01-01
Abstract
BACKGROUND: The current best practice suggests yearly magnetic resonance imaging (MRI) to monitor treatment response in multiple sclerosis (MS) patients. OBJECTIVE: To evaluate the current practice of clinicians changing MS treatment based on subclinical new MRI lesions alone. METHODS: Using MSBase, an international MS patient registry with MRI data, we analysed the probability of treatment change among patients with clinically silent new MRI lesions. RESULTS: A total of 8311 MRI brain scans of 4232 patients were identified. Around 26.9% (336/1247) MRIs with one new T2 lesion were followed by disease-modifying therapy (DMT) change, increasing to 50.2% (129/257) with six new T2 lesions. DMT change was twice as likely with new T1 contrast enhancing compared to new T2 lesions odds ratio (OR): 2.43, 95% confidence interval (CI): 2.00-2.96 vs OR: 1.26 (95% CI: 1.22-1.29). DMT change with new MRI lesions occurred most frequently with 'injectable' DMTs. The probability of switching therapy was greater only after high-efficacy therapies became available in 2007 (after, OR: 1.43, 95% CI: 1.28-1.59 vs before, OR: 0.98, 95% CI: 0.520-1.88). CONCLUSION: MS clinicians rely increasingly on MRI alone in their treatment decisions, utilizing low thresholds (1 new T2 lesion) for optimizing MS therapy. This signals a shift towards no evidence of disease activity (NEDA)-3 since high-efficacy therapies became available.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.