With the advent of government guidelines for the provision of cost-eff
ectiveness data, economic evidence has been elevated to a status simil
ar to that of evidence of efficacy and safety, which is required befor
e licensing of pharmaceutical products. Whilst the precise nature of g
overnment requirements is likely to vary from place to place, they pos
e a number of practical problems for pharmaceutical companies, in the
funding of studies and in the need to modify the clinical trials progr
amme to facilitate economic data collection. Economic evaluation requi
rements have been viewed by various parties as a basis for pricing and
reimbursement, as a form of cost containment and as a way of securing
more value for money in the healthcare system. It is unlikely that ec
onomic evidence could ever form the sole basis for setting price, sinc
e both industry and government often seek to introduce other factors i
nto the price negotiations. Requirements for economic evidence may als
o be an inefficient form of cost containment, compared with other meth
ods such as budgetary caps. These offer some potential as a way of sec
uring more value for money, but they should be applied equally across
all health technologies. In the future there needs to be much more cla
rity of purpose in government guidelines, and methodological standards
for economic analysis need to be refined.