What is already known on this topicOn a global average basis, the healthcare sector accounts for over 4% of global carbon dioxide equivalent (CO2e) emissions. In July 2023 PubMed showed only seven results when searching for ‘carbon footprint’ AND ‘clinical trials’ within title/abstract. Guidelines like the National Institute for Health and Care Research (NIHR, located in UK) Carbon Reduction Guidelines from 2019 outline approaches to help reduce carbon emissions from health research.
What this study addsAccording to members of Academic Research Institutions (ARIs) worldwide, researchers currently neglect greenhouse gas emissions during the planning phase of research projects. Moreover, CO2e emissions are not yet assessed by Institutional Review Boards (IRBs)/Ethics Committees (ECs) or competent authorities. A high proportion of ARI members do not yet focus on the carbon footprint of clinical research projects as seen by the high number of ‘I don't know’ answers within our survey. No advice from IRBs/ECs or competent authorities is available on reducing the carbon footprint of clinical trials.
How this study might affect research, practice or policyLocal, national or international consortia such as ARIs and IRBs/ECs need to give advice to all involved stakeholders during the conception phase of a clinical research project or a development programme, on reducing greenhouse gas emissions within the healthcare system. We need to raise awareness in order to increase the pace of action to avert one of the most important global challenges of our time. Long-term change will require sustained commitment by research institutions, regulatory authorities and funding bodies.

The carbon footprint of clinical trials: a global survey on the status quo and current regulatory guidance

Collaborating for Healthcare Innovation – a focus on Sustainability!

18-20 March 2025
Basel, Switzerland

DIA Europe 2025 will focus on sustainability, innovation and collaboration – three key pillars for shaping the future of healthcare. From the environmental impact of pharmaceuticals and of the drug development lifecycle to sustainable partnerships and sustainable healthcare systems, DIA Europe 2025 will be the prime opportunity to discuss how collaboration and innovation can support sustainability in healthcare and each stakeholder’s role in making it happen.

Join us in the vibrant city of Basel for an unforgettable experience, where the power of collaboration will be on full display to inspire actionable outcomes and mobilise for solutions the life sciences’ community. Witness first-hand the profound impact of united efforts, gain valuable insights from across the drug development lifecycle, and play an active role in shaping the future of the pharmaceutical arena.

DIA Europe 2025

A global, member-driven non-profit organization mobilizing life sciences and healthcare. DIA fosters innovation to improve health and well-being worldwide. Professionals from 80 countries continue to engage with DIA through our unparalleled membership network, educational offerings, and professional development opportunities.