A successful clinical trial ecosystem offers equal opportunities for all citizens.

An inclusive clinical trial ecosystem is essential to obtain scientific results that can be generalized to a broad patient population. When possible, all efforts should be made to remove geographic, demographic, cultural and ethnic barriers for enrolment in clinical trials. However, to do this effectively, we need more knowledge about factors influencing clinical trial participation and practical frameworks to enhance diversity in clinical trials. Commentary on: Jones et al. Inequalities in geographic barriers and patient representation in lymphoma clinical trials across England. Br J Haematol 2024 (Online ahead of print). doi: 10.1111/bjh.19907.