dannyk, neither Boris nor Trump says anything "consistently". A few months back Trump said he expected the NHS to be part of a trade deal. Now that it's temporarily an election issue, he says he doesn't.
But according to Channel 4, “drug pricing” has been discussed in six initial meetings between trade officials from the two countries
https://www.channel4.com/press/news/trumps-plan-nhs-channel-4-dispatches
Oh, and the subject is so sensitive that they must not mention “drug pricing” in emails but use the term “valuing innovation”.
It's never wise to believe a politician's promises too faithfully, but these two have an unusual tendency to lie.