Thanks for checking that one further, Sarah.
The risk sharing scheme in England (scheme is their word, not mine) is quite complex. And with the amount of debt the NHS is facing and trying to reconcile, it would not surprise me if they wanted to declare the DMDs didn't work, and therefore they don't have to pay the drug companies and can phase out treatments. That is my own spin on the conspiracy theory. :-)
from Reuters - http://uk.reuters.