Abstract
Souvenaid® is a medical food that contains nutrients that can help synapse synthesis in Alzheimer's disease (AD). The potential effectiveness of combination therapy of Souvenaid with cholinesterase inhibitors (AChEI) is currently not well-known. To look into the effect of combination therapy with Souvenaid plus AChEI in people with mild AD in the real-world. We carried out a retrospective analysis in mild AD patients attending a memory clinic. Three groups were studied according to the treatment they received: Souvenaid alone (n = 66), AChEI alone (n = 84), and Souvenaid+AChEI (n = 70). Treatment effects were evaluated at baseline, 6 and 12 months. Cognitive functioning was assessed by Mini-Mental State Examination (MMSE), Rey Auditory Verbal Learning Test (RAVLT), Symbol Digit Modalities Test (SDMT), Boston Naming Test (BNT), Trail Making Test (TMT/A-B), Phonemic and Semantic Verbal Fluency Test (PVFT/SVFT); neuropsychiatric symptoms were evaluated by the Neuropsychiatric Inventory (NPI); functional capacity was assessed by the Bayer Activities Daily Living Scale (BAYER-S). A Mixed Model for Repeated Measures analysis was carried out to evaluate changes in outcome scores. After 12 months Souvenaid+AChEI showed significant improvement in MMSE (p < 0.001), RAVLT (p < 0.0001), SVFT (p = 0.002), PVFT (p = 0.007), TMTA (p = 0.039), TMTB (p = 0.001), and NPI (p < 0.0001) compared to AChEI alone. Souvenaid showed cognitive and behavioral benefits in mild AD patients. These effects increased when Souvenaid and AChEI were used in combination. This study can serve as a model for the design of prospective controlled trials that help to support the combined use of Souvenaid and antidementia drugs in AD.
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