Since the UKGuardian is about as left as you can get, it made me wonder why they were courageous enough to investigate.
I suspect they hate big pharm more than Trump, or maybe they suspect the company behind the study was manipulating the news to make money in the stock market.
This YouTube video from WION goes into some facts about it, mentioning The Guardian report:
https://www.youtube.com/watch?v=ytgN_OO2h8I