What is Elafibranor (GFT505)? Elafibranor (GFT505) powder (923978-27-2), is an experimental drug whose research is still underway. Mainly, its study and development by Genfit are based on the effectiveness of Elafibranor (GFT505) powder (923978-27-2) in fighting diseases like non-alcoholic fatty liver disease, dyslipidemia, insulin resistance, and diabetes.