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Cognitive Deficit clinical trials

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NCT ID: NCT05605366 Not yet recruiting - Clinical trials for Cognitive Impairment

Minocycline In Neurocognitive Outcomes - Sickle Cell Disease

MINO-SCD
Start date: June 1, 2024
Phase: Phase 1
Study type: Interventional

Sickle cell disease (SCD) is a common, inherited blood disorder that primarily affects people of African Ancestry. It has a lot of complications including neurological complications. The neurological complications of SCD are particularly devastating and lead to cognitive decline even in the absence of overt brain injury. In such cases, it is thought that inflammation in the brain maybe partly responsible for the cognitive decline. The main reasons for this research study are to see 1) how safe and 2) how well minocycline works to try to stop/reverse cognitive decline in people with SCD. People with SCD are at risk for changes in their brain over time that can cause problems with learning, memory, and attention. Part of the reason for this is inflammation within the brain. Minocycline may be able to stop these brain changes by stopping this brain inflammation. Minocycline is a second-generation tetracycline antibiotic that has been shown to both inhibit neuroinflammation and improve cognitive function in a variety of neurodegenerative and psychiatric disorders but has not yet been studied in SCD. We are proposing here, a pilot double-blinded, randomized controlled trial to examine the tolerability and early efficacy of minocycline in adults with SCD at two dosing regimens (200 mg and 300 mg daily) versus placebo over one year. Participants will undergo a neuropsychological exam using the NIH Toolbox Cognition Battery at both study enrollment and exit (after one year) to assess for changes/stability of cognition. Participants will receive monthly phone calls/text messages to assess for adverse events and will be seen every three months for pill counts and routine laboratory monitoring. The primary outcome will be a comparison of adverse events across the two dosing strategies versus placebo. Early evidence for cognitive benefit will also be assessed from the results of the NIH Toolbox.

NCT ID: NCT02763397 Not yet recruiting - Cognitive Deficit Clinical Trials

Deep Brain Stimulation (DBS) of the Nucleus Basalis of Meynert (NbM) in Patients With Parkinson's Disease

Start date: May 2016
Phase: N/A
Study type: Interventional

The existing DBS setting in patients with DBS of the globus pallidus interna (GPi), which aims to treat motor symptoms by a high-frequency stimulation, will be temporarily reprogramed to stimulate the NbM at a low frequency using the distal electrodes positioned in the vicinity of the NBM. This study aims to investigate the neuropsychological effect of low frequency stimulation of the nucleus basalis of Meynert (NBM) in advanced Parkinson's disease (PD) patients, who were previously treated with deep brain stimulation (DBS) of the globus pallidus interna (GPi).