Did you read it?? It showed statistical significance with an 8 point difference on the outcome measure test. And then for you so say this drug needs a double blind controlled trial? It was. That is literally the first sentence in the methods section! Also, the article went into details about the outcomes measures and quality of life impacts.

Just going to throw this out there, you had to follow the doi link, then download the pdf to read the actual article. It sounds like you just glazed over the summary paragraphs.