Sustainability in clinical drug trials
In clinical drug trials, the main sources of emissions typically include the dispatch and transport of investigational drugs, energy consumption at trial facilities, travel by participants and research staff, packaging materials, laboratory supplies and the use of medical disposables.
The CO2 emissions of one clinical trial may vary between approximately 80 and 2,000 tonnes of CO2 equivalent for the duration of the trial. Typically, emissions increase as the trial progresses, because the number of participants, the samples taken from them and research centres in subsequent trials is higher. In addition, a later phase trial lasts longer than an early phase trial.
Sustainability and methods for reducing the carbon footprint should be taken into account already in the early planning of the trial and in the research protocol from the beginning.
The carbon footprint can be reduced, for example, by increasing digitalisation, utilising artificial intelligence to detect risks, optimising transport, improving resource and energy use, reducing pharmaceutical and other waste, rapid intake of participants, and reducing travel by participants and research personnel. In addition, in sustainable operation, environmental protection aspects must be taken into account. The guideline for good research practice (ICH GUIDELINE FOR GOOD CLINICAL PRACTICE E6(R3)) must be applied to these different implementation environments.
Below are some ways in which the carbon footprint of clinical trials can be reduced: