Clinical Research Directory

A Study Testing How Well the Drug Extract of Ginkgo Biloba Leaves Tablets Works for People With Memory or Thinking Problems After a Stroke When Added to Standard Treatment

The goal of this clinical trial is to learn if Extract of Ginkgo Biloba Leaves Tablets help improve thinking and memory in people aged 55 years and older who had an ischemic stroke (a type of stroke caused by a blocked blood vessel in the brain). It will also look at how safe the Extract of Ginkgo Biloba Leaves Tablets are. The main questions it aims to answer are: * Do the Extract of Ginkgo Biloba Leaves Tablets help people with memory or thinking problems after an ischemic stroke? * What medical problems do people have when taking the Extract of Ginkgo Biloba Leaves Tablets ? Researchers will compare people who take the Extract of Ginkgo Biloba Leaves Tablets along with their usual post-stroke treatment to people who only receive their usual post-stroke treatment. Participants will: * Have had an ischemic stroke confirmed by MRI (Magnet Resonance Imaging, a magnetic scan that helps seeing inside the body in great detail) 7 to 14 days before joining the study * Take Extract of Ginkgo Biloba Leaves Tablets (240 mg per day) in addition to usual post-stroke treatment for 12 months, or receive only usual post-stroke treatment for 12 months * Be treated initially at hospitals across China * Visit the clinic 4, 26, and 52 weeks following the baseline for checkups and tests, and receive follow-up calls after 12 and 38 weeks.

Neurobehavioral Changes Following Spaceflight Stressors

This study aims to investigate the impairing effects of known central nervous system (CNS) stressors in a controlled environment in order to predict and mitigate analogous risks in spaceflight. Up to 56 healthy individuals aged 25-60 will spend approx. 110 hours in a laboratory, where they will be exposed to 27 hours of sleep deprivation and will consume alcohol to reach a BAC of 0.08 on a separate day. They will perform cognitive and sensorimotor tasks and undergo MRIs and blood draws.