SLS-005 (Trehalose Injection) in the Treatment of Alzheimer's Disease

This is an open-label proof-of-concept study to evaluate the safety and treatment effects of SLS-005 (trehalose injection, 90.5 mg/mL for intravenous infusion) administered by IV infusion in either a once weekly or twice weekly dosing regimen in eligible men and women, ages 50-85 years, who have very mild, mild, or moderate dementia as determined by the Clinical Dementia Rating (CDR) global score and a biomarker-supported diagnosis of AD guided by the National Institute on Aging and Alzheimer's Association (NIA-AA) Research Framework. The study will enroll approximately 30 eligible participants who will be assigned in a 1:1 ratio to treatment with SLS-005 at a dose of 0.75 g/kg. administered by intravenous (IV) infusion in either a once weekly or twice weekly dosing regimen for up to 52 weeks. Participants will be assigned to 1 of the 2 dosing regimens to achieve approximately equal numbers of participants with mild (CDR 0.5 or 1) and moderate (CDR 2) baseline dementia severity in each dosing regimen. A relatively equal number of participants enrolled in each dosing regimen will be assigned to either the amyloid or tau PET procedure. Tracers to be used will be approved by Sponsor and described in the imaging manual. Adverse events and results of laboratory and physical evaluations will be collected and assessed throughout the study. Fluid biomarkers associated with AD pathology, brain imaging including amyloid or tau PET and volumetric magnetic resonance imaging (MRI), and measures of cognitive performance, functioning in activities of daily living (ADL), and neuropsychiatric behavioral symptoms will be collected at baseline and at scheduled times throughout the study. Participants who terminate treatment early, will be encouraged to complete all safety and outcome procedures as specified in the protocol's schedule of events.