2022
Association Between Generic-to-Generic Levothyroxine Switching and Thyrotropin Levels Among US Adults
Brito JP, Deng Y, Ross JS, Choi NH, Graham DJ, Qiang Y, Rantou E, Wang Z, Zhao L, Shah ND, Lipska KJ. Association Between Generic-to-Generic Levothyroxine Switching and Thyrotropin Levels Among US Adults. JAMA Internal Medicine 2022, 182: 418-425. PMID: 35226058, PMCID: PMC8886450, DOI: 10.1001/jamainternmed.2022.0045.Peer-Reviewed Original ResearchConceptsComparative effectiveness research studyIndex dateProportion of patientsTSH levelsNormal TSH levelsMIU/LThyrotropin levelsLevothyroxine productsGeneric levothyroxineNational administrative claims databasePropensity-matched patient pairsBaseline TSH levelsMean TSH levelsThyroid replacement therapyAdministrative claims databaseCurrent guideline recommendationsSerum thyrotropin levelsOptumLabs Data WarehouseStandardized mean differenceLevothyroxine doseLevothyroxine prescriptionsPropensity matchingGuideline recommendationsClaims databaseReplacement therapy
2020
Comparative Effectiveness of Generic vs Brand-Name Levothyroxine in Achieving Normal Thyrotropin Levels
Brito JP, Ross JS, Sangaralingham L, Dutcher SK, Graham DJ, Wang Z, Wu Y, Yao X, Smallridge RC, Bernet V, Shah ND, Lipska KJ. Comparative Effectiveness of Generic vs Brand-Name Levothyroxine in Achieving Normal Thyrotropin Levels. JAMA Network Open 2020, 3: e2017645. PMID: 32997127, PMCID: PMC7527873, DOI: 10.1001/jamanetworkopen.2020.17645.Peer-Reviewed Original ResearchConceptsNormal thyrotropin levelsPropensity score-matched patientsThyrotropin levelsLevothyroxine prescriptionsThyrotropin valuesProportion of patientsAdministrative claims databaseMonths of initiationMIU/LMild thyroid dysfunctionLongitudinal cohort studyMedicare Advantage enrolleesNormal thyrotropin valuesEligible patientsInitial therapyLevothyroxine formulationsCohort studyThyroid dysfunctionClaims databaseGeneric levothyroxineLevothyroxineMAIN OUTCOMENormal rangePatientsNormal vs
2019
Generic and Brand-Name Thyroid Hormone Drug Use Among Commercially Insured and Medicare Beneficiaries, 2007 Through 2016
Ross JS, Rohde S, Sangaralingham L, Brito JP, Choi L, Dutcher SK, Graham DJ, Jenkins MR, Lipska KJ, Mendoza M, Qiang Y, Wang Z, Wu Y, Yao X, Shah ND. Generic and Brand-Name Thyroid Hormone Drug Use Among Commercially Insured and Medicare Beneficiaries, 2007 Through 2016. The Journal Of Clinical Endocrinology & Metabolism 2019, 104: 2305-2314. PMID: 30690529, DOI: 10.1210/jc.2018-02197.Peer-Reviewed Original ResearchConceptsBrand-name useDrug useMedicare AdvantageThyroid hormone replacement therapyLarge administrative claims databaseBeneficiary populationAdministrative claims databaseHormone replacement therapyCertain patient characteristicsMedicare Part DPrescriber specialtyPatient characteristicsPrescriber characteristicsClaims databaseReplacement therapyGeneric levothyroxineWhite raceHealth plansOlder adultsHormone drugsInsurance coverageProduct useLevothyroxineNational dataPart D