Kahan, Brennan C; Juszczak, Edmund; Beller, Elaine; Birchenall, Megan; Chan, An-Wen; Hall, Sophie; Little, Paul; ... Montgomery, Alan; + view all Kahan, Brennan C; Juszczak, Edmund; Beller, Elaine; Birchenall, Megan; Chan, An-Wen; Hall, Sophie; Little, Paul; Fletcher, John; Golub, Robert M; Goulao, Beatriz; Hopewell, Sally; Islam, Nazrul; Zwarenstein, Merrick; Elbourne, Diana; Montgomery, Alan; - view fewer (2025) Guidance for protocol content and reporting of factorial randomised trials: explanation and elaboration of the CONSORT 2010 and SPIRIT 2013 extensions. BMJ , 388 , Article e080785. 10.1136/bmj-2024-080785.