Active clinical trials for "Alzheimer Disease"

The purpose of this study is to evaluate the safety, tolerability, and efficacy of two dose levels of rasagiline mesylate versus placebo in patients with mild-to-moderate Alzheimer's Disease who are taking Aricept.

Alzheimer's disease is a medical illness that damages the brain and causes problems with memory, mood and behavior. A substance called acetylcholine (ACh), which is naturally produced in the body, plays an important role in the normal functioning of the brain. In subjects with Alzheimer's disease, the level of ACh is greatly reduced. Currently, there are three commonly prescribed drugs used for treating the symptoms of Alzheimer's disease by helping to maintain the level of ACh in the brain. This study will evaluate how much each of these drugs changes the levels of certain brain chemicals that are known to, or may play an important role in, Alzheimer's disease and its symptoms.

This is a multi-center, double-blind, inpatient study followed by outpatient, placebo-controlled, single-dose, dose-escalation evaluation of the safety and tolerability of PPI-1019 in patients with mild-moderate Alzheimer's disease (AD). Up to 12 sequential cohorts of 8 patients (6 active and 2 placebo) will be given a single PPI-1019 dose intravenously (IV) over 1 minute in order to determine a maximum tolerated dose (MTD). The MTD will be the dose immediately below the not-tolerated dose.

This study will examine the effect of the drugs lithium and divalproex (Depakote) on tau proteins, a type of protein in the brain and spinal fluid that are altered in patients with Alzheimer's disease. Both drugs are approved by the Food and Drug Administration to treat mood disorders, and both have been shown in animal studies to decrease the amount of altered tau protein. This study will determine whether lithium alone or in combination with divalproex reduces the altered tau protein in the spinal fluid of patients with Alzheimer's disease. Patients with Alzheimer's disease who are between 40 and 90 years of age may be eligible for this study. Candidates are screened with a medical history and physical examination, neurologic and neuropsychological evaluation, blood and urine tests, electrocardiogram (EKG), and, if needed, a magnetic resonance imaging (MRI) scan of the brain. Participants undergo the following tests and procedures: Drug treatment: Patients take study drugs for 6 weeks. Weekly clinic visits: Patients come to the clinic once a week for a physical examination, blood and urine tests, a review of drug side effects, and to receive the next week's supply of medications. Lumbar puncture (spinal tap): Patients have a lumbar puncture at study weeks 2, 4, and 6 to measure various brain chemicals and tau proteins in the cerebrospinal fluid (CSF), which bathes the brain and spinal cord. For this test, a local anesthetic is given and a needle is inserted in the space between the bones in the lower back where the CSF circulates below the spinal cord. A small amount of fluid is collected through the needle. Follow-up visit: Two weeks after completing the study medication, patients return to the clinic for a final evaluation, including a physical examination and blood and urine tests.

The purpose of this trial is to test the safety & tolerability of intramuscular aripiprazole in acutely agitated patients diagnosed with Dementia.

An investigational drug (MK0677) will be studied to determine whether it helps the memory and cognition of patients with Alzheimer's Disease.

The purpose of this study is to determine whether reduction of homocysteine levels with high-dose folate (folic acid), B6, and B12 supplementation will slow the rate of cognitive decline in persons with Alzheimer's disease.

The main purpose of this study is to determine the electrophysiological effects of cholinergic therapy (cholinesterase inhibitors and transdermal nicotine) in Alzheimer disease. The attempt will be to locate electrophysiological markers and predictors of cognitive and clinical treatment response.

CLASP is a research study to investigate the safety and effectiveness of simvastatin (a cholesterol lowering drug or statin) to slow the progression of Alzheimer's disease (AD). Statins are commonly used to treat high cholesterol levels, which increase the risk of heart disease and stroke.

The purpose of this study is to determine whether short-term use of the drugs ibuprofen and lovastatin affects levels of a protein called beta-amyloid in people who are at risk for developing Alzheimer's Disease (AD).