Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

sperm being implanted in an egg during IVF

The NPEU Clinical Trials Unit is collaborating with the University of Aberdeen on a large-scale multi-centre trial comparing the use of ‘fresh’ and frozen embryos for IVF, the first of its kind in the UK. E-Freeze, funded by the NIHR Health Technology Assessment (HTA) Programme will recruit 1,086 couples to see which method produces the greatest number of healthy babies, as well as considering the health of the mother and costs to the health services and longer-term societal costs.