Drugmaker Madrigal just came out with some promising data for its treatment of NASH, a 'silent disease' millions are living with - and the stock is exploding

• Madrigal Pharmaceuticals just came out with positive new data for its treatment of a "silent" disease millions are living with.
• The condition, NASH, short for nonalcoholic steatohepatitis, is a type of liver disease in which liver fat builds up in people. There are no approved treatments for NASH, though there are some in late-stage development with data expected in 2019.
• Madrigal showed in a phase 2 study with 73 patients that its treatment was better than placebo at reducing fat in the liver, and the treatment managed to resolve NASH in 27% of the patients who received treatment, compared to just 6% of those in the placebo group.
• Madrigal's stock was up 60% before markets opened on Thursday on the results.

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