The results of the treatment of two patients with mitochondrial disease using ATP enhancer were published.

Kamatani N, Kushiyama A, Toyo-Oka L, Toyo-Oka T. Treatment of two mitochondrial disease patients with a combination of febuxostat and inosine that enhances cellular ATP. J Hum Genet. 2019 Jan 10. doi:10.1038/s10038-018-0558-0