Disease-Modifying Symptomatic Treatment (DMST): The Potential Role of Vortioxetine in the Treatment of Depression in Patients with Multiple Sclerosis.

In multiple sclerosis (MS), alongside the physical symptoms, individuals often grapple with anxiety and depressive symptoms as prevalent comorbidity. Mood disturbances, frequently undertreated in clinical practice, significantly impact the quality of life of individuals with MS, exacerbating disability and hindering overall well-being. Furthermore, traditional antidepressant therapies are often associated with adverse events, such as sexual side effect, weight gain, which could limit their use in these patients. Vortioxetine is one of the most innovative antidepressant drugs in the current pharmacopeia. Its pharmacological profile includes serotonin reuptake inhibition, antagonism for hydroxytryptamine (HT) receptors 5-HT3, 5-HT1D and 5-HT7, partial agonism for 5-HT1B, and agonism for 5-HT1A. It has been shown to have a beneficial effect on depression-related cognitive dysfunction, as well as on anxiety, depression, anhedonia and emotional blunting. Recently a potential anti-inflammatory action was also described. Limited clinical studies have specifically explored the efficacy of vortioxetine in treating depressive symptoms in MS. However, extrapolating from existing research in major depressive disorder, it is plausible that vortioxetine's multimodal mechanism could provide a favorable therapeutic approach. This position paper, which summarizes the output of annual clinical meeting held by the DMSTs in MS Italian Study Group, is focused on the possible role that vortioxetine could play as symptomatic treatment (ST) of depressed patients with MS, hypothesizing a direct impact on the clinical course of the disease.

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