2024
Reporting of surrogate endpoints in randomised controlled trial reports (CONSORT-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 reports (CONSORT-Surrogate): extension checklist with explanation and elaboration. The BMJ 2024, 386: e078524. PMID: 38981645, PMCID: PMC11231881, DOI: 10.1136/bmj-2023-078524.Peer-Reviewed Original ResearchConceptsRandomised controlled trial reportsTrial reportsRandomised controlled trialsControlled trial reportsIntervention treatment effectsResearch wasteTrial findingsTreatment effectsControlled trialsTarget outcomesChecklistAdequate informationSurrogate endpointsInterventionCONSORTItemsTrialsImprove transparencyHarmReportsGuidelinesOutcomesEndpoint
2023
A framework for the definition and interpretation of the use of surrogate endpoints in interventional trials
Ciani O, Manyara A, Davies P, Stewart D, Weir C, Young A, Blazeby J, Butcher N, Bujkiewicz S, Chan A, Dawoud D, Offringa M, Ouwens M, Hróbjartssson 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. A framework for the definition and interpretation of the use of surrogate endpoints in interventional trials. EClinicalMedicine 2023, 65: 102283. PMID: 37877001, PMCID: PMC10590868, DOI: 10.1016/j.eclinm.2023.102283.Peer-Reviewed Original ResearchSurrogate endpointsInterventional trialsIntermediate outcomesHealth technology assessment expertsPrimary outcome measureMeasures of functionTreatment effectsE-Delphi studyOutcome measuresConsensus meetingBetter HealthTarget outcomesTrialsEndpointLack of consensusOutcomesPatientsFuture reportingCurrent definitionUrgent needSymptomsCliniciansSettingBiomarkersAssessing the use of observational methods and real-world data to emulate ongoing randomized controlled trials
Wallach J, Deng Y, Polley E, Dhruva S, Herrin J, Quinto K, Gandotra C, Crown W, Noseworthy P, Yao X, Jeffery M, Lyon T, Ross J, McCoy R. Assessing the use of observational methods and real-world data to emulate ongoing randomized controlled trials. Clinical Trials 2023, 20: 689-698. PMID: 37589143, PMCID: PMC10843567, DOI: 10.1177/17407745231193137.Peer-Reviewed Original ResearchConceptsBaseline participant characteristicsParticipant characteristicsPrimary endpointSecondary endpointsTrial publicationsMajor adverse cardiovascular eventsPropensity score-matched participantsFirst major adverse cardiovascular eventAdverse cardiovascular eventsBaseline patient characteristicsNonfatal myocardial infarctionOptumLabs Data WarehouseElectronic health record dataRepresentative patient populationHealth record dataCardiovascular eventsClinical characteristicsPatient characteristicsPatient populationMyocardial infarctionExclusion criteriaDrug effectivenessTrialsRecord dataEndpoint
2022
Protocol for the development of SPIRIT and CONSORT extensions for randomised controlled trials with surrogate primary endpoints: SPIRIT-SURROGATE and CONSORT-SURROGATE
Manyara AM, Davies P, Stewart D, Weir CJ, Young A, Butcher NJ, Bujkiewicz S, Chan AW, Collins GS, Dawoud D, Offringa M, Ouwens M, Ross JS, Taylor RS, Ciani O. Protocol for the development of SPIRIT and CONSORT extensions for randomised controlled trials with surrogate primary endpoints: SPIRIT-SURROGATE and CONSORT-SURROGATE. BMJ Open 2022, 12: e064304. PMID: 36220321, PMCID: PMC9557267, DOI: 10.1136/bmjopen-2022-064304.Peer-Reviewed Original ResearchConceptsSurrogate endpointsPeer-reviewed publicationsSurrogate primary endpointOpen-access peer-reviewed publicationPATIENTS/PARTICIPANTSCompleteness of reportingTranslation of effectsPhase 1Primary endpointPrimary outcomeTrial findingsEthical approvalCONSORT extensionSuch trialsEthics CommitteeEndpointHealth benefitsTrialsPhase 3Final outcomePhase 2Transparent reportingOutcomesPhase 4Additional items
2020
Non-inferiority trials using a surrogate marker as the primary endpoint: An increasing phenotype in cardiovascular trials
Bikdeli B, Caraballo C, Welsh J, Ross JS, Kaul S, Stone GW, Krumholz HM. Non-inferiority trials using a surrogate marker as the primary endpoint: An increasing phenotype in cardiovascular trials. Clinical Trials 2020, 17: 723-728. PMID: 32838556, PMCID: PMC8088773, DOI: 10.1177/1740774520949157.Peer-Reviewed Original ResearchConceptsNon-inferiority trialPrimary endpointClinical outcome trialsNon-inferiority marginSurrogate markerNon-inferiority designCardiovascular trialsOutcome trialsClinical outcomesDefinitive clinical outcome trialsNon-inferiority criteriaStudy protocolSurrogate outcomesBACKGROUND/Median numberSurrogate endpointsPrimary analysisCardiovascular interventionsCardiovascular medicineTrialsEndpointClinical interpretationOutcomesMarkersIntervention
2019
Biomarkers as Surrogate Endpoints: Ongoing Opportunities for Validation
Zhang AD, Ross JS. Biomarkers as Surrogate Endpoints: Ongoing Opportunities for Validation. The Journal Of Law, Medicine & Ethics 2019, 47: 393-395. PMID: 31560627, DOI: 10.1177/1073110519876170.Commentaries, Editorials and Letters
2017
Postapproval studies of drugs initially approved by the FDA on the basis of limited evidence: systematic review
Pease AM, Krumholz HM, Downing NS, Aminawung JA, Shah ND, Ross JS. Postapproval studies of drugs initially approved by the FDA on the basis of limited evidence: systematic review. The BMJ 2017, 357: j1680. PMID: 28468750, PMCID: PMC5421452, DOI: 10.1136/bmj.j1680.Peer-Reviewed Original ResearchConceptsSingle pivotal trialPivotal trialsPostapproval studiesSurrogate markerPrimary endpointNovel drugsClinical outcomesClinical studiesLimited evidenceSystematic reviewDouble-blind studyMedian total numberClinical evidenceSuperior efficacyBlind studyDrug AdministrationOriginal FDATrial approvalDiseaseTrialsDrugsFDAEndpointEfficacyMarkersTwo Decades of Cardiovascular Trials With Primary Surrogate Endpoints: 1990–2011
Bikdeli B, Punnanithinont N, Akram Y, Lee I, Desai NR, Ross JS, Krumholz HM. Two Decades of Cardiovascular Trials With Primary Surrogate Endpoints: 1990–2011. Journal Of The American Heart Association 2017, 6: e005285. PMID: 28325713, PMCID: PMC5524035, DOI: 10.1161/jaha.116.005285.Peer-Reviewed Original ResearchConceptsClinical outcome trialsOutcome trialsEndpoint trialsPrimary endpointCardiovascular trialsClinical outcome studiesClinical outcomesSurrogate markerPatient's perspectiveSurrogate endpointsOutcome studiesNew England JournalSample cohortTrial resultsTrialsSurrogate trialsEndpointPositive resultsAmerican MedicalInterventionHigh-impact journalsCohort