Review of Randomized Trials Over the Past 30 Years Concludes that Long-Term Use of Gingko Biloba Extract Likely Improves Cognitive Function in Mildly Demented Patients

ABSTRACT: Alzheimer’s disease (AD) is a common neurodegenerative disease, mainly manifested by cognitive dysfunction. It seriously reduces the quality of life, and there is no ideal treatment strategy in clinical practice. Clinical studies on the treatment of AD with Ginkgo biloba L. leaf extract (EGb) have been reported since the 1980s, and many clinical studies have been carried out during the following 30 years. However, the benefits of EGb on the treatment of AD are still controversial. In this review, we collected the clinical trial reports of EGb on cognitive function from Pubmed, Elsevier, Europe PMC, and other database since the 1980s. Through analysis and comparison, we consider that EGb may be able to improve the cognitive function in patients who suffered from mild dementia during long-term administration (more than 24 weeks) and appropriate dosage (240 mg per day). The main evidence and existing problems of the negative and positive experimental results were summarized. 

Liu HL, et al. An Updated Review of Randomized Clinical Trials Testing the Improvement of Cognitive Function of Ginkgo biloba Extract in Healthy People and Alzheimer’s Patients. Front Pharmacol. 2020 Feb 21;10:1688. doi: 10.3389/fphar.2019.01688. eCollection 2019.