| In the French GuidAge study, groups of elderly people with memory complaints were randomly assigned 240 milligrams per day of ginkgo extract, or a placebo, to be taken daily. |
| Another large scale study with EGb 761, the GUIDAGE study with 2854 patients aged 70 and above, is currently ongoing in France. |
| In France, more than 2,800 patients have been included in the GuidAge study, which is carried out in collaboration with 25 memory hospitals. |
