研究目的：
This study is an exploratory clinical research on the use of JT821 (a ketogenic diet formulation) for the treatment of patients with behavioral variant frontotemporal dementia (bvFTD), aiming to evaluate the effectiveness, safety, and tolerability of JT821 in the intervention of bvFTD. The ketogenic diet (KD) is a low-carbohydrate, adequate protein and high-fat diet. KD was shown to be effective in treating different neurodegenerative diseases.
