2024
Premarket Pivotal Trial End Points and Postmarketing Requirements for FDA Breakthrough Therapies
Mooghali M, Wallach J, Ross J, Ramachandran R. Premarket Pivotal Trial End Points and Postmarketing Requirements for FDA Breakthrough Therapies. JAMA Network Open 2024, 7: e2430486. PMID: 39190303, PMCID: PMC11350476, DOI: 10.1001/jamanetworkopen.2024.30486.Peer-Reviewed Original ResearchConceptsFood and Drug Administration tableFood and Drug AdministrationSurrogate end pointsSurrogate markerPostmarketing studiesEnd pointsTraditional approvalCross-sectional studyClinical benefitAccelerated approvalTherapy designClinically significant end pointsReview of therapeuticsPrimary end pointUS Food and Drug AdministrationTrial end pointsSignificant end pointsPostmarketing requirementsPreliminary clinical evidenceApproval pathwayPivotal trialsClinical evidenceBreakthrough therapiesDrug AdministrationTherapyReporting 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 transparencyHarmReportsGuidelinesOutcomesEndpointReporting 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(sHarmAssociations Between Surrogate Markers and Clinical Outcomes for Nononcologic Chronic Disease Treatments
Wallach J, Yoon S, Doernberg H, Glick L, Ciani O, Taylor R, Mooghali M, Ramachandran R, Ross J. Associations Between Surrogate Markers and Clinical Outcomes for Nononcologic Chronic Disease Treatments. JAMA 2024, 331: 1646-1654. PMID: 38648042, PMCID: PMC11036312, DOI: 10.1001/jama.2024.4175.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkersChronic DiseaseClinical Trials as TopicHumansMeta-Analysis as TopicTreatment OutcomeConceptsMeta-analysesChronic diseasesFood and Drug AdministrationMeta-regression analysisMeta-analyses of observational studiesSurrogate markerClinical outcomesClinical trialsMeta-analysisEvidence of associationPublished meta-analysesStrength of associationMeta-analyses of clinical trialsChronic disease treatmentFood and Drug Administration tableResults of meta-regression analysisOutcome pairsFood and Drug Administration approvalMain OutcomesData extractionSystematic reviewStatistically significant resultsObservational studyPooled analysisDrug Administration
2022
Spending by the Centers for Medicare & Medicaid Services Before and After Confirmation of Benefit for Drugs Granted US Food and Drug Administration Accelerated Approval, 2012 to 2017
Skydel JJ, Egilman AC, Wallach JD, Ramachandran R, Gupta R, Ross JS. Spending by the Centers for Medicare & Medicaid Services Before and After Confirmation of Benefit for Drugs Granted US Food and Drug Administration Accelerated Approval, 2012 to 2017. JAMA Health Forum 2022, 3: e221158. PMID: 35977252, PMCID: PMC9142876, DOI: 10.1001/jamahealthforum.2022.1158.Peer-Reviewed Original ResearchConceptsSurrogate end pointsCross-sectional studyClinical benefitConfirmation of benefitEnd pointOriginal indicationClinical outcomesUS FoodConfirmatory trialsMedicaid ServicesPrimary end pointUnproven clinical benefitsTrial end pointsClinical trial resultsTypes of drugsPostapproval trialsAccelerated approvalClinical trialsMAIN OUTCOMEDrug AdministrationMedicare Part BStandard approvalConversion statusSupplemental indicationsTrial results
2021
Fulfilling the Mandate of the US Food and Drug Administration’s Accelerated Approval Pathway
Gyawali B, Ross JS, Kesselheim AS. Fulfilling the Mandate of the US Food and Drug Administration’s Accelerated Approval Pathway. JAMA Internal Medicine 2021, 181: 1275-1276. PMID: 34254981, DOI: 10.1001/jamainternmed.2021.4604.Commentaries, Editorials and Letters
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
2018
Comparison of treatment effect sizes from pivotal and postapproval trials of novel therapeutics approved by the FDA based on surrogate markers of disease: a meta-epidemiological study
Wallach JD, Ciani O, Pease AM, Gonsalves GS, Krumholz HM, Taylor RS, Ross JS. Comparison of treatment effect sizes from pivotal and postapproval trials of novel therapeutics approved by the FDA based on surrogate markers of disease: a meta-epidemiological study. BMC Medicine 2018, 16: 45. PMID: 29562926, PMCID: PMC5863466, DOI: 10.1186/s12916-018-1023-9.Peer-Reviewed Original ResearchConceptsPostapproval trialsPivotal trialsActual clinical effectSurrogate markerTrial endpointsLarge treatment effectsPrimary endpointNovel therapeuticsNovel drugsTreatment effectsFDA approvalPatient-relevant outcomesMeta-epidemiological studyStandardized mean differenceTreatment effect sizeClinical effectsResultsBetween 2005Odds ratioDrug trialsSame indicationDrug AdministrationEvidence of differencesMean differenceU.S. FoodDisease
2017
Two 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 journalsCohortClinical Evidence Supporting US Food and Drug Administration Approval of Otolaryngologic Prescription Drug Indications, 2005‐2014
Rathi VK, Wang B, Ross JS, Downing NS, Kesselheim AS, Gray ST. Clinical Evidence Supporting US Food and Drug Administration Approval of Otolaryngologic Prescription Drug Indications, 2005‐2014. Otolaryngology 2017, 156: 683-692. PMID: 28116974, DOI: 10.1177/0194599816689666.Peer-Reviewed Original ResearchConceptsPivotal studiesOriginal indicationPrimary endpointClinical evidenceDrug indicationsSupplemental indicationsUS FoodFDA approvalAvailable FDA documentsDouble-blinded studyDrug Administration approvalInformed treatment decisionsPivotal clinical studiesPremarket evidenceOtolaryngologic diseaseMedian enrollmentSurrogate markerAdministration approvalClinical studiesTreatment decisionsMost indicationsDrug AdministrationInitial approvalMultidisciplinary teamPrescription drugs
2014
Clinical Trial Evidence Supporting FDA Approval of Novel Therapeutic Agents, 2005-2012
Downing NS, Aminawung JA, Shah ND, Krumholz HM, Ross JS. Clinical Trial Evidence Supporting FDA Approval of Novel Therapeutic Agents, 2005-2012. JAMA 2014, 311: 368-377. PMID: 24449315, PMCID: PMC4144867, DOI: 10.1001/jama.2013.282034.Peer-Reviewed Original ResearchConceptsPivotal efficacy trialsNovel therapeutic agentsClinical trial evidencePivotal trialsEfficacy trialsTherapeutic agentsEnd pointTrial evidenceMedian numberAvailable FDA documentsSingle pivotal trialTrial end pointsSurrogate end pointsNumber of patientsLength of treatmentCross-sectional analysisPrimary outcomeClinical outcomesTrial completion ratesClinical benefitPlacebo comparatorSurrogate outcomesMAIN OUTCOMEDrug AdministrationUS Food