Risk of depression in multiple sclerosis across disease-modifying therapies

Depression and use of antidepressants are more common among patients with multiple sclerosis (MS) compared to the general population, but the relation of psychiatric comorbidity to use of different disease-modifying therapies (DMTs) is less clear. Objective: To determine whether risk of incident depression or antidepressant use differed across DMTs, and to assess whether depression and antidepressants affected risk of DMT discontinuation and MS relapses. Methods: We prospectively followed for 8 years a register-based nationwide cohort of 3803 relapsing-remitting MS patients. Results: Patients on rituximab had a lower risk of being diagnosed with depression or initiating antidepressants compared with the reference group treated with interferons (hazard ratio (HR) = 0.72, 95% confidence interval (CI) = 0.54–0.96). Patients diagnosed with depression discontinued interferon treatment to a higher extent than patients without depression (HR = 1.51; 95% CI = 1.15–1.98), as did patients on fingolimod initiating an antidepressant compared to patients who did not initiate an antidepressant (HR = 1.47; 95% CI = 1.04–2.08). Conclusions: Our results indicate that the choice of DMT is associated with subsequent risk of depression in MS, but further studies are needed to establish whether there is a causal link. Overall, depression and use of antidepressants displayed limited associations with DMT discontinuation and MS relapse.

Ingår i:Multiple sclerosis (Houndmills, Basingstoke, England): SAGE Publications28:4, s. 632-6411477-09701352-4585

Av författaren/redakt...: Longinetti, E; Frisell, T; Englund, S; Reutfors, J; Fang, F; Piehl, F

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