This is a presentation from the BMAS Spring Meeting in May 2017. It describes the story from the speakers' perspective of the events leading up to the recommendation in favour of acupuncture treatment for back pain in the NICE Clinical Guideline CG88, and the subsequent events that lead to this recommendation being reversed in 2016 in NG59 (the update of CG88).
Here is an interesting opinion piece on conflicts of interest from the deputy chief executive of NICE:
http://blogs.bmj.com/bmj/2017/08/09/gillian-leng-do-we-trust-the-experts/