Read Katherine Lee and Sabine Braat's recent contribution to "The Conversation" an independent source of news and views, sourced from the academic and research community.
http://theconversation.com/randomised-control-trials-what-makes-them-the-gold-standard-in-medical-research-78913
http://theconversation.com/explainer-how-do-drugs-get-from-the-point-of-discovery-to-the-pharmacy-shelf-78915