They basically cured non-alcohol related liver cancer.
Liver cancer/failure (NASH) caused by obese and fat people, an estimated 22m american adults and 15m minors under the age of 18. An estimated 37m people in USA alone. This doesn't count the remaining 6.7 billion around the world, these numbers are simply the USA alone.
Drug performance was dead-on as why the FDA did an early stop to the trials, hence automatic approval.