Reporting of surrogate endpoints in randomised controlled trial protocols (SPIRIT-Surrogate): extension checklist with explanation and elaboration
Manyara A, Davies P, Stewart D, Weir C, Young A, Blazeby J, Butcher N, Bujkiewicz S, Chan A, Dawoud D, Offringa M, Ouwens M, Hróbjartsson A, Amstutz A, Bertolaccini L, Bruno V, Devane D, Faria C, Gilbert P, Harris R, Lassere M, Marinelli L, Markham S, Powers J, Rezaei Y, Richert L, Schwendicke F, Tereshchenko L, Thoma A, Turan A, Worrall A, Christensen R, Collins G, Ross J, Taylor R, Ciani O. Reporting of surrogate endpoints in randomised controlled trial protocols (SPIRIT-Surrogate): extension checklist with explanation and elaboration. The BMJ 2024, 386: e078525. PMID: 38981624, PMCID: PMC11231880, DOI: 10.1136/bmj-2023-078525.Peer-Reviewed Original ResearchConceptsTrial protocolRandomised controlled trial protocolTarget outcomesReduce research wasteStandard Protocol ItemsRandomised controlled trialsIntervention effectsProtocol ItemsInterpretation of findingsResearch wasteImprove reportingPrimary outcome(sIntervention trialsControlled trialsChecklistSurrogate endpointsInterventionItemsIncreasing callsTrialsGuidelinesOutcomesLimited informationOutcome(sHarm
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