GDao - APAP and Asthma - University Blog...

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10/15/16 1 + From “A” to “Wheeze” Acetaminophen’s Role in the Asthma Epidemic Gretchen Dao, PharmD Community Pharmacy PGY1 Resident H-E-B/University of Texas at AusGn October 21, 2016 + A 7-year-old child on controller therapy for asthma has a temperature of 100.1°F and a new prescripEon for an anEbioEc. Her mother tells you that the pediatrician recommended that she should also get “something OTC for the fever”. Do you recommend: A. Acetaminophen? B. Ibuprofen? 2 + Learning ObjecEves nDiscuss the role of acetaminophen (APAP) in the asthma epidemic in children nEvaluate safety of other alternaGves nProvide appropriate analgesic/anGpyreGc recommendaGons for children with asthma 3

Transcript of GDao - APAP and Asthma - University Blog...

Page 1: GDao - APAP and Asthma - University Blog Servicesites.utexas.edu/phr-residencies/files/2015/07/10-21-Dao-APAP-and... · 10/07/2015  · Gretchen Dao, PharmD Community Pharmacy PGY1

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From“A”to“Wheeze”Acetaminophen’sRoleintheAsthmaEpidemic

GretchenDao,PharmDCommunityPharmacyPGY1ResidentH-E-B/UniversityofTexasatAusGn October21,2016

+A7-year-oldchildoncontrollertherapyforasthmahasatemperatureof100.1°FandanewprescripEonforananEbioEc.Hermothertellsyouthatthepediatricianrecommendedthatsheshouldalsoget“somethingOTCforthefever”.

Doyourecommend:

A.  Acetaminophen?

B.  Ibuprofen?

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+LearningObjecEves

n Discusstheroleofacetaminophen(APAP)intheasthmaepidemicinchildren

n EvaluatesafetyofotheralternaGves

n Provideappropriateanalgesic/anGpyreGcrecommendaGonsforchildrenwithasthma

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+BackgroundAsthma

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+AsthmaStaEsEcs

Data,StaGsGcs,andSurveillance.CenterforDiseaseControlandPrevenGon.(2016)

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10.5millionphysicianoffice

visits

$50+billionspentperyear

1.8millionEDvisits

49%ofchildrenwithasthma

missed>1dayofschool

Data,StaGsGcs,andSurveillance.CenterforDiseaseControlandPrevenGon.(2016)

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Data,StaGsGcs,andSurveillance.CenterforDiseaseControlandPrevenGon.(2016)

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8.4%

Data,StaGsGcs,andSurveillance.CenterforDiseaseControlandPrevenGon.(2016)

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+Whatcausesasthma?

n Environmentaltriggers

n AirwayinfecGons

n GeneGcs

n “HygieneHypothesis”

WhatIsAsthma?U.S.NaGonalLibraryofMedicine.(2014)

???APAP???

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+Whatisasthma?

Image:Haderer&Muller,illustratedfortheAmericanCollegeofChestPhysicians.(2016)

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Cellmediatedimmunity&DelayedhypersensiEvity AllergicinflammaEonVarnerAE,BusseWW,LemanskeRF.AnnAllergyAsthmaImmunol.(1998)

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Pathophysiology

COX-2

éê

+APAPandAsthmaThreeMainQuesGons

1.  DoesfrequentAPAPuseleadtoasthmainchildren?

2.  DoesfrequentAPAPuseworsensymptomsinchildrenwhoalreadyhaveasthma?

3.  ArethealternaGves(i.e.ibuprofen)anysafer?

Litonjua.NEnglJMed.(2016)

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+From“A”to“Wheeze”ObservaGonalStudies

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+TheFirstHypothesis:Varner,etal.(1998)

NoEcedin1980s:Pediatricaspirin(ASA)usedecreased

✚Childhoodasthmaprevalenceincreased

VarnerAE,BusseWW,LemanskeRF.AnnAllergyAsthmaImmunol.1998;81(4):347-51.

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DecreaseduseofASAmaybeafactorinfacilitaGngallergicsensiGzaGonand

asthma.Hypothesis

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Cellmediatedimmunity&DelayedhypersensiEvity AllergicinflammaEonVarnerAE,BusseWW,LemanskeRF.AnnAllergyAsthmaImmunol.1998;81(4):347-51.

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TheFirstHypothesis:Varner,etal.(1998)

COX-2

ASA

êé

APAP?

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VarnerAE,BusseWW,LemanskeRF.AnnAllergyAsthmaImmunol.1998;81(4):347-51.

TheFirstHypothesis:Varner,etal.(1998)

CorrelaEon?Coincidence?

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+TheFirstHypothesis:Varner,etal.(1998)n Conclusion:n EliminaGonofpediatricASAmaybeanimportantcontributor

n RelaGonshipbetweenAPAPandasthmaisunproven,furtherinvesGgaGonisneeded

VarnerAE,BusseWW,LemanskeRF.AnnAllergyAsthmaImmunol.1998;81(4):347-51.

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+EpidemiologicalEvidence:Shaheen,etal.(2000)

n Background:n AnimalstudiesshowedthatAPAPdepletesglutathione(GSH)inlungs

n GSHisananGoxidantthatmaydefendagainstoxidaGvestressofasthmainflammaGon

n  IncreasedGSHlevelsinairwaysofadultswithasthma

Shaheen,etal.Thorax.2000;55(4):266-70.

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FrequentAPAPuseisassociatedwithasthma.Hypothesis

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+EpidemiologicalEvidence:Shaheen,etal.(2000)

Shaheen,etal.Thorax.2000;55(4):266-70.

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•  PopulaGonbasedcase-control•  SurveyonfrequencyofASA/APAPuseinpeoplewithasthmavs.without

•  Controlledforconfoundingriskfactors

Design

•  Aged16-49y•  Defined“asthmaGc”or“non-asthmaGc”basedonscreeningquesGons

•  N=1574(664casesvs.910controls)ParEcipants

+EpidemiologicalEvidence:Shaheen,etal.(2000)

Shaheen,etal.Thorax.2000;55(4):266-70.

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+EpidemiologicalEvidence:Shaheen,etal.(2000)

Shaheen,etal.Thorax.2000;55(4):266-70.

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+EpidemiologicalEvidence:Shaheen,etal.(2000)n Conclusion:n Frequent(daily/weekly)APAPuse,possiblyoveruse,posiGvelyassociatedwithasthman Dose-relatedresponse-causal?

n UnlikelythatrelaGonshipisauributabletohigherprevalenceofco-morbidity

n ASAavoidancecanonlyexplainpartoftheassociaGon,notall

Shaheen,etal.Thorax.2000;55(4):266-70.

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+AnEcologicalLook:Newson,etal.(2000)

Sofar:

n Varner:êASAàéAPAPàéasthma?

n Shaheen:frequentAPAPçèasthma?

Newson,etal.EurRespirJ.2000;16(5):817-23.

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CountrieswithhighernaGonalAPAPsalesareassociatedwithhigherasthma

symptomprevalence.Hypothesis

+AnEcologicalLook:Newson,etal.(2000)

Newson,etal.EurRespirJ.2000;16(5):817-23.

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•  Linearregressionanalysis:•  InternaGonalsymptom-prevalencedata•  NaGonalper-capitaAPAPsales

Design

• Aged6-7y,13-14y• N=?(22countries)ParEcipants

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+AnEcologicalLook:Newson,etal.(2000)

Newson,etal.EurRespirJ.2000;16(5):817-23.

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+AnEcologicalLook:Newson,etal.(2000)

Newson,etal.EurRespirJ.2000;16(5):817-23.

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English-speakingcountries

+AnEcologicalLook:Newson,etal.(2000)

n “Anglophoneeffect”n English-speakingWesterncountriestendtohave:n Highestprevalenceofasthmasymptomsn HighestAPAPsales

n Posthocanalysis:n AllassociaGonsbetweenAPAPandasthmasymptomsàabolishedornon-significant

Newson,etal.EurRespirJ.2000;16(5):817-23.

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+AnEcologicalLook:Newson,etal.(2000)

n Conclusion:n NaGonalAPAPsalesposiGvelyassociatedwithprevalenceofasthmasymptoms

n “Anglophoneeffect”n LikelyduetoconfounderstronglyassociatedwithEnglish-speakingcountries

n WarrantsfurtherinvesGgaGon

Newson,etal.EurRespirJ.2000;16(5):817-23.

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+LimitaEonstoObservaEonalStudiesn Weakstrengthofevidence

n ConfoundingbyindicaGonn CausalassociaGonisdifficulttodetermine

n Exposuredatanotlinkedtoindividuals

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+Pu_ngItAllTogetherMeta-Analysis

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+Meta-Analysis:Garcia-Marcos,etal.(2011)

n 41sub-studiesn Infants,children,adults,pregnantwomenn Longitudinal,cross-secGonal

n PooledOR=1.48n “…nomacerwhattypeofstudy,age,orEmeofexposure,thereisalwaysaposiEveassociaEonbetweenexposureandrespiratorysymptoms”

Garcia-MarcosL,Sanchez-SolisM,Perez-FernandezV.CurrOpinAllergyClinImmunol.2011;11(3):162-73.

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+Meta-Analysis:Garcia-Marcos,etal.(2011)

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Garcia-MarcosL,Sanchez-SolisM,Perez-FernandezV.CurrOpinAllergyClinImmunol.2011;11(3):162-73.

+WhatAboutAlternaEves?APAPvs.Ibuprofen

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+FirstRandomizedControlledTrial:Lesko,etal.(2002)

Lesko,etal.Pediatrics.2002;109(2):E20.

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•  Short-termuseofibuprofenincreasesasthmamorbidityinchildrenHypothesis

• Randomized,double-blind,APAP-controlled• MeasuredhospitalizaGonandoutpaGentvisitsforasthma

Design

+FirstRandomizedControlledTrial:Lesko,etal.(2002)

Lesko,etal.Pediatrics.2002;109(2):E20.

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• Aged6m-12ywithasthmaandfever

• N=1879ParEcipants

• APAP12mg/kg,ibuprofen5mg/kg,ibuprofen10mg/kg

• Followedx4weeksIntervenEon

+FirstRandomizedControlledTrial:Lesko,etal.(2002)

Lesko,etal.Pediatrics.2002;109(2):E20.

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• NodifferenceinhospitalizaGonrates• OutpaGentvisitssignificantlylowerinibuprofengroup

Results

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+

Cellmediatedimmunity&DelayedhypersensiEvity AllergicinflammaEon

FirstRandomizedControlledTrial:Lesko,etal.(2002)

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COX-2

ASA

êé

APAP?

Ibu

ê

+FirstRandomizedControlledTrial:Lesko,etal.(2002)n Conclusion:n ComparedtoAPAP,ibuprofenhaslowerriskofasthmamorbidity

n Duetonoplacebo-control,cannotdeterminewhetherdifferenceisduetoAPAPincreasingriskoribuprofendecreasingrisk

Lesko,etal.Pediatrics.2002;109(2):E20.

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+AVICATrialSheehan,etal.(2016)

Sheehan,etal.NEnglJMed.2016;375(7):619-30.

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• AsthmamorbidityishigherinAPAPvs.ibuprofeninchildrenwithmildpersistentasthma

Hypothesis

• MulGcenter,prospecGve,double-blind,parallel-group

• 48weeks,measuredexacerbaGonfrequencies

Design

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+AVICATrialSheehan,etal.(2016)

Sheehan,etal.NEnglJMed.2016;375(7):619-30.

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• Aged1-5ywithmildpersistentasthma

• N=300ParEcipants

• APAP15mg/kgq6hprn•  Ibuprofen9.4mg/kgq6hprnIntervenEon

+AVICATrialSheehan,etal.(2016)

Sheehan,etal.NEnglJMed.2016;375(7):619-30.

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• NosignificantdifferenceinexacerbaGonratesbetweengroups

Results

+AVICATrialSheehan,etal.(2016)

n Conclusion:n Nosignificantdifferencedoesnotnecessarilymeanthattheyareequal(RRCI=0.69-1.28)

n Resultsmaynotbegeneralizableto:n Higherseverityofasthman Non-adherentchildren

n Duetonoplacebo-control,cannotexcludepossibilitythatbothibuprofenandAPAPmaybeassociated

Sheehan,etal.NEnglJMed.2016;375(7):619-30.

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+WhatDoYouThink?RevisiGngthePaGentCase

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+A7-year-oldchildoncontrollertherapyforasthmahasatemperatureof100.1°FandanewprescripEonforananEbioEc.Hermothertellsyouthatthepediatricianrecommendedthatsheshouldalsoget“somethingOTCforthefever”.

Doyourecommend:

A.  Acetaminophen?

B.  Ibuprofen?

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+Reviewer’sThoughts

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+EvidenceChecklist

q Exposureprecedesonsetofdisease

q Plausiblebiologicalmechanism

q Consistencyacrossdifferentstudysewngs

q TemporalrelaGonshiptoexposure

q IdenGficaGonofdose-responseeffect

q SpecificitytocausaGveagentwithnoconvincingalternaGveexplanaGon

q ReversibilityofthecausaleffectWeatherall,etal.ClinExpAllergy.2015;45(1):108-13.

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✔✔✔✔✔✔

+Conclusion

n MulGpleobservaGonalstudiessuggest:n Dose-relatedrelaGonshipbetweenAPAPuse(possiblyAPAPoveruse)andasthma

n Plausiblemechanism(s)

n ExisGngRCTssuggest:n  IbuprofenisnotnecessarilyabeueralternaGve

n MoreRCTsneededtostrengthenevidencen Lackingdataonreversibilityofeffect

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+Acknowledgements

n Dr.NathanPope

n H-E-B/UTResidents&Preceptors

Evaluator:Prof.MarciaKiger

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+Bibliography

n  Data,StaGsGcs,andSurveillance.CenterforDiseaseControlandPrevenGon.hups://www.cdc.gov/asthma/asthmadata.htm.PublishedSeptember8,2016.AccessedOctober3,2016.

n  Garcia-MarcosL,Sanchez-SolisM,Perez-FernandezV.Earlyexposuretoacetaminophenandallergicdisorders.CurrOpinAllergyClinImmunol.2011;11(3):162-73.

n  LeskoSM,LouikC,VezinaRM,MitchellAA.Asthmamorbidityayertheshort-termuseofibuprofeninchildren.Pediatrics.2002;109(2):E20.

n  LitonjuaAA.AcetaminophenandAsthma--ASmallSighofRelief?.NEnglJMed.2016;375(7):684-5.

n  NewsonRB,ShaheenSO,ChinnS,BurneyPG.Paracetamolsalesandatopicdiseaseinchildrenandadults:anecologicalanalysis.EurRespirJ.2000;16(5):817-23.

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+Bibliography

n  ShaheenSO,SterneJA,SonghurstCE,BurneyPG.Frequentparacetamoluseandasthmainadults.Thorax.2000;55(4):266-70.

n  SheehanWJ,MaugerDT,PaulIM,etal.AcetaminophenversusIbuprofeninYoungChildrenwithMildPersistentAsthma.NEnglJMed.2016;375(7):619-30.

n  VarnerAE,BusseWW,LemanskeRF.Hypothesis:decreaseduseofpediatricaspirinhascontributedtotheincreasingprevalenceofchildhoodasthma.AnnAllergyAsthmaImmunol.1998;81(4):347-51.

n  WeatherallM,IoannidesS,BraithwaiteI,BeasleyR.TheassociaGonbetweenparacetamoluseandasthma:causaGonorcoincidence?.ClinExpAllergy.2015;45(1):108-13.

n  WhatIsAsthma?U.S.NaGonalLibraryofMedicine.hups://www.nhlbi.nih.gov/health/health-topics/topics/asthma.PublishedAugust4,2014.AccessedOctober3,2016.

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+

From“A”to“Wheeze”Acetaminophen’sRoleintheAsthmaEpidemic

GretchenDao,PharmDCommunityPharmacyPGY1ResidentH-E-B/UniversityofTexasatAusGn October21,2016