2023
US Food and Drug Administration Approval of Drugs Not Meeting Pivotal Trial Primary End Points, 2018-2021
Johnston J, Ross J, Ramachandran R. US Food and Drug Administration Approval of Drugs Not Meeting Pivotal Trial Primary End Points, 2018-2021. JAMA Internal Medicine 2023, 183: 376-380. PMID: 36780148, PMCID: PMC9926353, DOI: 10.1001/jamainternmed.2022.6444.Peer-Reviewed Original Research
2022
Comparison of Clinical Study Results Reported in medRxiv Preprints vs Peer-reviewed Journal Articles
Janda G, Khetpal V, Shi X, Ross J, Wallach J. Comparison of Clinical Study Results Reported in medRxiv Preprints vs Peer-reviewed Journal Articles. JAMA Network Open 2022, 5: e2245847. PMID: 36484989, PMCID: PMC9856222, DOI: 10.1001/jamanetworkopen.2022.45847.Peer-Reviewed Original ResearchConceptsPrimary end pointPrimary end point resultsPeer-reviewed journalsClinical studiesEnd pointClinical trialsObservational studyStudy characteristicsEnd point resultsClinical study resultsMost clinical studiesCross-sectional studyHealth-related outcomesSample sizeMAIN OUTCOMEPeer-reviewed publicationsMedRxivEffect estimatesStudy interpretationDiscordant pairsCOVID-19TrialsConsistency between trials presented at conferences, their subsequent publications and press releases
Rowhani-Farid A, Hong K, Grewal M, Reynolds J, Zhang A, Wallach J, Ross J. Consistency between trials presented at conferences, their subsequent publications and press releases. BMJ Evidence-Based Medicine 2022, 28: 95-102. PMID: 36357160, PMCID: PMC10086295, DOI: 10.1136/bmjebm-2022-111989.Peer-Reviewed Original ResearchConceptsClinical trialsConference abstractsTrial resultsEndpoint definitionsPrimary efficacy end pointEnd pointEfficacy end pointPrimary efficacy endpointClinical Trials RegistryMedical conferencesMultiple logistic regressionCross-sectional analysisSafety endpointEfficacy endpointPeer-reviewed journalsTrial abstractsTrials RegistryTrial characteristicsConsistency of reportingSample sizePrimary analysisSecondary analysisInternational medical conferencesLogistic regressionStudy designSpending 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
Assessment of FDA Approval for New High-risk Therapeutic Devices Not Meeting Pivotal Study Primary End Points, 2016-2020
Johnston JL, Dhruva SS, Ross JS, Rathi VK. Assessment of FDA Approval for New High-risk Therapeutic Devices Not Meeting Pivotal Study Primary End Points, 2016-2020. JAMA Internal Medicine 2021, 181: 1409-1412. PMID: 34152383, PMCID: PMC8218229, DOI: 10.1001/jamainternmed.2021.3042.Peer-Reviewed Original ResearchReal-world Cardiovascular Outcomes Associated With Degarelix vs Leuprolide for Prostate Cancer Treatment
Wallach JD, Deng Y, McCoy RG, Dhruva SS, Herrin J, Berkowitz A, Polley EC, Quinto K, Gandotra C, Crown W, Noseworthy P, Yao X, Shah ND, Ross JS, Lyon TD. Real-world Cardiovascular Outcomes Associated With Degarelix vs Leuprolide for Prostate Cancer Treatment. JAMA Network Open 2021, 4: e2130587. PMID: 34677594, PMCID: PMC8536955, DOI: 10.1001/jamanetworkopen.2021.30587.Peer-Reviewed Original ResearchConceptsMajor adverse cardiovascular eventsSecondary end pointsMyocardial infarctionClinical trialsCardiovascular diseaseProstate cancerCardiovascular eventsEnd pointRisk of MACELarge US administrative claims databasePropensity-matched cohort studyUS administrative claims databasePropensity score-matched patientsAdverse cardiovascular eventsPrimary end pointAdministrative claims databaseProportional hazards regressionRandomized clinical trialsAdministrative claims dataTrial eligibility criteriaMedicare Advantage beneficiariesProstate cancer treatmentReal-world evidenceElectronic health recordsCardiovascular outcomesCharacteristics of Clinical Studies Used for US Food and Drug Administration Supplemental Indication Approvals of Drugs and Biologics, 2017 to 2019
Dhodapkar M, Zhang AD, Puthumana J, Downing NS, Shah ND, Ross JS. Characteristics of Clinical Studies Used for US Food and Drug Administration Supplemental Indication Approvals of Drugs and Biologics, 2017 to 2019. JAMA Network Open 2021, 4: e2113224. PMID: 34110392, PMCID: PMC8193429, DOI: 10.1001/jamanetworkopen.2021.13224.Peer-Reviewed Original ResearchConceptsPrimary efficacy end pointEfficacy end pointPivotal trialsIndication approvalsActive comparatorClinical outcomesSupplemental indicationsUS FoodEnd pointOriginal approvalTherapeutic areasPivotal efficacy trialsCross-sectional studyAdditional clinical dataDrug Administration approvalNew indication approvalsStrength of evidenceAdministration approvalMonths durationClinical dataClinical studiesEfficacy trialsMedian numberCancer indicationsMAIN OUTCOMEEvaluation of Trials Comparing Single-Enantiomer Drugs to Their Racemic Precursors
Long AS, Zhang AD, Meyer CE, Egilman AC, Ross JS, Wallach JD. Evaluation of Trials Comparing Single-Enantiomer Drugs to Their Racemic Precursors. JAMA Network Open 2021, 4: e215731. PMID: 33956134, PMCID: PMC8103227, DOI: 10.1001/jamanetworkopen.2021.5731.Peer-Reviewed Original ResearchConceptsRandomized clinical trialsSafety end pointEnd pointClinical trialsDrug pairsPrimary end point resultsEnd point resultsImproved efficacyEfficacy end pointCochrane Central RegistrySeparate end pointsSingle-enantiomer drugsSingle enantiomer formulationPrimary efficacySecondary efficacyControlled TrialsOvid EmbaseOvid MEDLINESuperior efficacyDrug AdministrationCentral RegistrySystematic reviewMore efficacyTrialsRacemic drugs
2020
Characteristics of Ongoing Clinical Trials for Alcohol Use Disorder Registered on ClinicalTrials.gov
Wallach JD, Krystal JH, Ross JS, O’Malley S. Characteristics of Ongoing Clinical Trials for Alcohol Use Disorder Registered on ClinicalTrials.gov. JAMA Psychiatry 2020, 77: 1081-1084. PMID: 32459295, PMCID: PMC7254444, DOI: 10.1001/jamapsychiatry.2020.1167.Peer-Reviewed Original Research
2019
Feasibility of Using Real-World Data to Replicate Clinical Trial Evidence
Bartlett VL, Dhruva SS, Shah ND, Ryan P, Ross JS. Feasibility of Using Real-World Data to Replicate Clinical Trial Evidence. JAMA Network Open 2019, 2: e1912869. PMID: 31596493, PMCID: PMC6802419, DOI: 10.1001/jamanetworkopen.2019.12869.Peer-Reviewed Original ResearchConceptsPrimary end pointClinical trialsReal-world evidenceEnd pointElectronic health recordsEHR dataExclusion criteriaClinical trial evidenceRandomized clinical trialsHigh-impact general medical journalsReal-world populationInsurance claimsTraditional clinical trialsCross-sectional analysisSame clinical questionPercentage of trialsPrimary outcomeClinical outcomesClinical evidenceTrial evidenceTrial populationTrial inclusionObservational studyAdministrative claimsMAIN OUTCOME
2018
Age of Data at the Time of Publication of Contemporary Clinical Trials
Welsh J, Lu Y, Dhruva SS, Bikdeli B, Desai NR, Benchetrit L, Zimmerman CO, Mu L, Ross JS, Krumholz HM. Age of Data at the Time of Publication of Contemporary Clinical Trials. JAMA Network Open 2018, 1: e181065-e181065. PMID: 30646100, PMCID: PMC6324269, DOI: 10.1001/jamanetworkopen.2018.1065.Peer-Reviewed Original ResearchConceptsClinical trialsFinal data collectionParticipant enrollmentInternal medicineMultivariable linear regression analysisFirst participant enrollmentPrimary end pointMultivariable regression analysisContemporary clinical trialsClinical trial dataJAMA Internal MedicineRegression analysisCross-sectional analysisTime of publicationMedian timeTrial characteristicsOutcome measuresMAIN OUTCOMENew England JournalClinical practiceLinear regression analysisTrial dataEnd pointTrial resultsTrials
2017
Clinical Evidence Supporting US Food and Drug Administration Premarket Approval of High‐Risk Otolaryngologic Devices, 2000‐2014
Rathi VK, Wang B, Ross JS, Downing NS, Kesselheim AS, Gray ST. Clinical Evidence Supporting US Food and Drug Administration Premarket Approval of High‐Risk Otolaryngologic Devices, 2000‐2014. Otolaryngology 2017, 156: 285-288. PMID: 28093943, DOI: 10.1177/0194599816684094.Peer-Reviewed Original ResearchConceptsPostapproval studiesPivotal studiesUS FoodPrimary effectiveness end pointAvailable FDA documentsEffectiveness end pointPivotal clinical studiesBenefit-risk assessmentCross-sectional analysisPremarket evidenceMedian durationClinical evidenceDrug Administration premarket approvalsOtolaryngologic diseaseMedian enrollmentClinical studiesHigh-risk medical devicesDrug AdministrationEnd pointHigh-risk devicesFDA documentsOne-thirdTwo-thirdsPremarket approvalFDA
2016
Compliance with prospective trial registration guidance remained low in high-impact journals and has implications for primary end point reporting
Dal-Ré R, Ross JS, Marušić A. Compliance with prospective trial registration guidance remained low in high-impact journals and has implications for primary end point reporting. Journal Of Clinical Epidemiology 2016, 75: 100-107. PMID: 26820559, DOI: 10.1016/j.jclinepi.2016.01.017.Commentaries, Editorials and LettersConceptsPrimary end pointInterim analysisTRIAL REGISTRATIONEnd pointHigh-impact general medicine journalsICMJE policyMain outcome measuresPublic trials registryPredictors of complianceProspective trial registrationTrials of FDACross-sectional analysisPercent of trialsTrials RegistryGeneral medicine journalsProspective registrationOutcome measuresClinical researchStudy designTrial resultsHigh-impact journalsRetrospective registrationTrialsAscertainmentMedicine journals
2015
Characteristics of Clinical Studies Conducted Over the Total Product Life Cycle of High-Risk Therapeutic Medical Devices Receiving FDA Premarket Approval in 2010 and 2011
Rathi VK, Krumholz HM, Masoudi FA, Ross JS. Characteristics of Clinical Studies Conducted Over the Total Product Life Cycle of High-Risk Therapeutic Medical Devices Receiving FDA Premarket Approval in 2010 and 2011. JAMA 2015, 314: 604-612. PMID: 26262798, DOI: 10.1001/jama.2015.8761.Peer-Reviewed Original ResearchConceptsPrimary effectiveness end pointEffectiveness end pointPostmarket studiesClinical studiesClinical evidencePMA pathwayPremarket studiesEnd pointAvailable FDA documentsInitial marketing approvalPremarket approval pathwayTherapeutic devicesMedian durationMedian enrollmentHigh-risk medical devicesMAIN OUTCOMEPatientsDrug AdministrationUS FoodFDA approvalMarketing approvalLonger durationFDA documentsMonthsPostmarket
2014
Place of Residence and Outcomes of Patients With Heart Failure
Bikdeli B, Wayda B, Bao H, Ross JS, Xu X, Chaudhry SI, Spertus JA, Bernheim SM, Lindenauer PK, Krumholz HM. Place of Residence and Outcomes of Patients With Heart Failure. Circulation Cardiovascular Quality And Outcomes 2014, 7: 749-756. PMID: 25074375, PMCID: PMC5323058, DOI: 10.1161/circoutcomes.113.000911.Peer-Reviewed Original ResearchConceptsNeighborhood socioeconomic statusIndividual socioeconomic statusOutcomes of patientsHeart failureHigher SES neighborhoodsSocioeconomic statusClinical factorsHeart Failure Outcomes trialPrimary end pointPatient-level factorsUS internal medicineCause mortalityCause readmissionMultivariable adjustmentOutcome trialsMedical chartsPatient interviewsLow-SES neighborhoodsCardiology practiceMortality ratePatientsPlace of residenceInternal medicineReadmissionEnd pointClinical 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