
Parliament welcomes the IMI
initiatives – a public-private effort. That’s
good because European taxpayers are providing much of the funding for IMI. At
this point, IMI is cooperating with BARDA and the Wellcome Trust on projects
that fund antibiotic research and development. IMI seems to have a very diverse funding portfolio
where antibiotic research plays a relatively minor role – but every little bit
helps.
The European regulators have been leading lights in our
efforts to get feasible pathways to develop needed new antibiotics targeting
resistant pathogens (see my blog
– towards the end of the page). The parliament recognizes this, but at the same
time cautions the regulators to put in place measures to ensure patient
safety. But, of course, the regulators
have already done this by providing for post-market reviews and other measures
to continually monitor the safety of drugs approved with less or even minimal
data. So, what does the parliament’s caution to regulators mean?
The major issue facing us is one of money. The purse strings in Europe are still held by
the various national authorities. So, in this most important of domains, the
parliament attempts to offer advice. But
the advice is, at best, contradictory. On the one hand, parliament notes the
threat of antibiotic resistance and the market failure that led us to where we
are. On the other hand, it decries the
fact that new drugs are becoming so expensive as to threaten national budgets.
Parliament rightly states that cost-benefit and pharmacoeconomics should be
used to set prices – tying price to value. At the same time, they suggest that health technology assessment
agencies (like NICE in the UK) be used to guide national negotiating and
pricing positions. I’m worried that this will lead to the necessity for
clinical superiority studies of all new antibiotics active against resistant
pathogens in order for them to achieve the kind of reimbursement that will be
necessary to provide companies with a return on investment. I don’t agree with John Rex’s position that
such studies are almost never appropriate.
I do believe that if we are considering them (as for pathogen-specific antibiotics) they are unlikely to be sufficiently powered in
clinical trials leading to approval. The studies leading to approval are going
to be highly dependent on non-clinical data including both in vitro findings
and especially PK/PD in animal models as John discussed in his blog
last week. Will HTAs be willing to use the same data as regulators to establish
that an antibiotic clearly active against resistant pathogens is superior to
the antibiotics to which the organism is resistant or will they demand a
non-feasible clinical demonstration of such?
In sum, Europe struggles as does the US, to find a way to
provide a meaningful return on investment for companies who invest in the
discovery and development of antibiotics that will be sorely needed to stem the
tide of resistant infections. In general, the effort to fund the research side
of things (led by the US and UK in my view) has been a successful one. Where we
all fail is at the end game – paying for a desperately needed new product
without which lives would be lost unnecessarily. On both sides of the Atlantic,
the issue is swallowing the fact that such products will, inevitably, require
an investment that was hitherto unforeseen.
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