Active clinical trials for "Alzheimer Disease"

Anti-viral therapy in Alzheimer's disease will investigate the efficacy of treating patients with mild Alzheimer's disease with the U.S.A marketed generic anti-viral drug Valtrex (valacyclovir, 500mg oral tablet). Valacyclovir, titrated to 4 grams per day, repurposed to treat Alzheimer's disease, will be compared to matching placebo in the treatment of 130 mild AD patients (65 valacyclovir, 65 placebo) who test positive for herpes simplex virus-1 (HSV1) or herpes simplex virus-2 (HSV2). The study will be a randomized, double-blind, 18-month Phase II proof of concept trial.

A double-blind, placebo-controlled study that aims to investigate the effect of 2-week and 12-week administration of USP methylene blue (MB) on cerebral blood flow, functional connectivity, memory and attention cognitive abilities using fMRI and behavioral measures in healthy aging, mild cognitive impairment (MCI) and mild Alzheimer's disease (AD) subjects.

A two-year safety study of simufilam (PTI-125) 100 mg oral tablets twice daily for participants of the previous simufilam studies as wells as additional new mild-to-moderate Alzheimer's disease subjects for a total of 200 participants. All participants will receive simufilam 100 mg tablets twice daily for one year, followed by a 6-month randomized, double-blind period where subjects will either continue on active treatment or be switched to placebo. The study concludes with an additional 6-month open-label treatment period. Clinic visits are every month or month and a half in the first year, and every 3 months in the second year with an additional visit at Month 13. Cognition and neuropsychiatric symptoms are evaluated.

The goal of this clinical trial is to test whether vaccination with the BCG vaccine may improve the blood level of a biomarker of Alzheimer's disease (AD) in participants who are cognitively- and functionally- intact elderly (70-80 years old) participants, who display pathologically high levels of the blood biomarker. The main questions it aims to answer are: Does BCG vaccination lower the plasma level of phosphorylated Tau protein (p-tau181). Do vaccinated participants remains stable cognitively. Participants will be asked to: Undergo cognitive and behavioral evaluation. Receive 3 BCG vaccinations over the course of 1 year. Perform blood tests on several occasions. All participants will be treated and followed.

The primary goal of this study is to test the hypothesis that oral nabilone treatment will reduce agitation compared with placebo in patients with Frontotemporal Dementia (both behavioural variant frontotemporal dementia and primary progressive aphasia). The study population is defined as patients with probable Frontotemporal Dementia that meet the International Psychogeriatric Association criteria for agitation in cognitive disorders.

This study is being done to research the usefulness of PET/CT imaging for measuring brain inflammation and its relation to Alzheimer's Disease. Additionally, researchers as looking to learn more about the side effects of a new radioactive tracer (radiotracer) C-11 ER176.

This study is done to find out whether the medicine, semaglutide, has a positive effect on early Alzheimer's disease. Participants will either get semaglutide or placebo (a "dummy" medicine which does not contain any study medicine) - which treatment participants get is decided by an equal chance. The study will last for up to 173 weeks (about 3 years and 4 months). Participants will have 17 clinic visits and 1 phone call with the study doctor. The study includes various tests and scans. At 10 of the clinic visits participants will have blood samples taken. Participants must have a study partner, who is willing to take part in the study. Women cannot take part if pregnant, breastfeeding or plan to become pregnant during the study period. A cerebrospinal fluid (CSF) sub-study will be performed as a part of the study. The sub-study will be performed on a selection of sites based on their experience with CSF sampling and willingness to participate in this sub-study. The endpoints related to this sub-study are exploratory only.

This study is being conducted to evaluate the safety and efficacy of ALZ-801 in Early Alzheimer's disease (AD) subjects with the APOE4/4 genotype. This is a double-blind, randomized trial with one dose of ALZ-801 compared to placebo.

Due to COVID-19, the routine treatment for dementia, Cognitive Stimulation Therapy (CST), is currently suspended in multiple countries. Access to treatment is, therefore, paramount. The investigators seek to bridge the current treatment gap with a virtual and individual form of CST, called Virtual Individual Cognitive Stimulation Therapy (V-iCST). This psychosocial intervention was adapted from the key principles of CST and developed within the Medical Research Council (MRC) framework for complex interventions. The investigators aim to evaluate the feasibility and acceptability of V-iCST in a Randomized Controlled Trial. This is a feasibility randomized controlled trial (RCT) for Virtual Individual Cognitive Stimulation Therapy (V-iCST), an evidence-based teletherapy for people with mild to moderate dementia. This psychosocial intervention is adapted from a routine and established dementia treatment, Cognitive Stimulation Therapy, and developed within the Medical Research Council (MRC) framework for complex interventions.

The reason for this study is to see how safe and effective the study drug donanemab is in participants with early Alzheimer's disease. Additional participants will be enrolled to an addendum safety cohort. The participants will be administered open-label donanemab.