Reporting of surrogate endpoints in randomised controlled trial protocols (SPIRIT-Surrogate): extension checklist with explanation and elaboration.
Anthony Muchai ManyaraPhilippa DaviesDerek StewartChristopher J WeirAmber E YoungJane BlazebyNancy J ButcherSylwia BujkiewiczAn-Wen ChanDalia DawoudMartin OffringaMario OuwensAsbjørn HróbjartsssonAlain AmstutzLuca BertolacciniVito Domenico BrunoDeclan DevaneChristina D C M FariaPeter B GilbertRay HarrisMarissa LassereLucio MarinelliSarah MarkhamJohn H PowersYousef RezaeiLaura RichertFalk SchwendickeLarisa G TereshchenkoAchilles ThomaAlparslan TuranAndrew WorrallRobin ChristensenGary S CollinsJoseph S RossRod S TaylorOriana CianiPublished in: BMJ (Clinical research ed.) (2024)