In light of government and healthcare system commitments to reducing the carbon footprint of healthcare, health technology assessment (HTA) agencies are increasingly motivated to investigate how to consider environmental sustainability in their assessments and guidance. This constitutes a major departure from the existing remits and objectives of most agencies, which typically focus on improving population health outcomes. This presentation seeks to identify options for incorporating environmental impact data into HTA and to examine the main challenges, focusing on the National Institute for Health and Care Excellence (NICE) as a case study.

We present four broad approaches that could be pursued, informed by policy analysis undertaken by NICE. The strengths, weaknesses and implications of each approach are assessed.

The first option is to act as an ‘information conduit’, aggregating and distributing in a standardized format environmental impact information that is provided voluntarily by health technology manufacturers. The second is to present complementary analyses of environmental impact data, separately but alongside results from established health economic analyses (‘parallel evaluation’ model). The third is to incorporate environmental impact data into health economic analyses, for example by monetizing environmental outcomes, so that quantitative estimates of treatment value are directly affected by environmental benefits and costs (‘integrated evaluation’ model). The fourth is to create new decision-making frameworks for evaluating healthcare interventions that are not expected to improve health-related outcomes, but claim to have relative environmental benefits.

We conclude that these approaches are not mutually exclusive, and all involve some degree of benefit and risk. We explain why the parallel evaluation model may be the most appropriate approach for NICE as a first response to the increased demand for guidance on the environmental impact of health technologies. We also outline activities being undertaken by NICE and other agencies such as the Canadian Agency for Drugs and Technologies in Health to develop new methodologies for incorporating environmental impact data into their HTAs.