e/c/f/taf single tablet regimen for post-exposure prophylaxis · 2019-03-10 · id# 0985 study...
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ID#0985
Studysettingsanddesign:Prospective,open-label,single-armtrialin15Frenchcenters(NCT02998320).Individualsaged≥18yearswithpotentialHIVexposure(occupationalornot)intheprevious48hourswhometcriteriaforPEPinitiationreceivedonce-dailyE/C/F/TAFfor28days.Assessments: The primary endpoint was PEP completion at day 28, excluding withdrawal after sourcepatientwastestednegativetoHIV.Secondaryendpointswere:(1) Adherence:throughselfreport[day14and28]andelvitergavirbloodplasmalevel[day14](2) Qualityoflife:throughSF-12questionnaire[baseline,day14and28],(3) Safety: throughquestionnaire [day14and28]andbiologicalparameters (creatinine,GFR,AST,ALT,
phosphate)[baseline,day14and28](4) Efficacy:throughHIVserology[baseline,day56and112]
Introduction:HIV post-exposure prophylaxis (PEP) completion rates are ofmajor concern, as rates ofindividualscompletingthe28-dayscourseregimenrangefrom56%to78%.Recently, theelvitegravir/cobicistat/emtricitabine/tenofoviralafenamidecoformulation(E/C/F/TAF)wasapprovedforHIVinfectiontreatment.Thissingletabletregimen(STR)containsanewprodrug,tenofoviralafenamide,whichcouldimprovethesafetyprofileoftenofovir[10].
Objectives:TodescribePEPcompletionandsafetyofanE/C/F/TAFregimen.
Self-reported adherence was100%, between 90 and 99%, and<90% for 76%, 22% and 2% ofindividualsatday14;andfor75%,17% and 8% of individuals at day28,respectively(p>0.05)(seeFigureA)Median e lv i tegrav i r t roughconcentrationatday14was0.628mg/L (range, 0-4.201), thereforeabove 0.190 mg/L for 88% ofparticipants(seeFigureB)
Background
Methods
Treatmentoutcomes
Adherence
Safety
Overall, 226 adverse events were reported in 58 (68%) and 43 (59%) participants, at day 14 and 28respectively(p>0.05).
At day 14; 93, 24 and 8 grade 1, 2 and 3 adverse eventswere observed, and 73, 21 and 7 on day 28,respectively (p>0.05). Themost frequent reported adverseeventswere asthenia (19%), abdominal pain(16%),diarrhea(15%)andheadache(14%).Norenalorliverabnormalitiesoccurred.
Non-significantvariationsincreatinine,GFR,AST,ALTandphosphatelevelswereobserved(seeFigure)
Conclusions
81 % of individuals (95% CI, 73-89)completed PEP course till day 28 visit(n=78).Completion failure (n=18,19%)wasdueto:-losttofollow-up(n=16)-individual’sownchoice(n=1)-withdrawalofconsent(n=1)
No PEP interruption due to adverse eventswasdocumented
14 additional participants (16%) were alsolost to follow-up between day 28 to day112, and pre-exposure prophylaxis wasinitiatedfor1participant(seeFigure)
NoHIVseroconversionwasobserved
ThePEPcompletionratewasof81%,thusintherangeofotherrecentlyapprovedSTRwhenusedinaPEPsetting.PEPnon-completionwasnotdirectlyattributedtoE/C/F/TAF,butmostlytolossesoffollow-up,whichfrequentlyhampersPEPcare.Wealsoreporta100%efficacyrate,asnoparticipantwassubsequentlytestedHIVpositiveonstudy.Highadherence(>90%ofpillsintake)totheE/C/F/TAFregimenwasdocumentedbybothself-reportsin98%and92%atday14and28respectively,aswellasbypharmacologicalassessments(appropriatein88%ofcases).TheseresultsweresimilarthanthoseobtainedwithotherPEPSTR.QualityoflifemeasureswerenotmodifiedonE/C/F/TAFandweresimilarthanthoseofthegeneralpopulation,suggestingthatE/C/F/TAFissuitableforfurtherPEPusage.Although,noPEPdiscontinuationsduetosafetyreasonsweredocumented,evenifadverseeventsrateswerehigherinPEPusersthaninHIV-infectedindividuals.Whencomparingtootherintegraseinhibitors-basedPEPregimen,E/C/F/TAFshowedsimilarcompletionratesastheotherelvitegravir-basedanddolutegravir.Thisresultcouldbefurtherexplainedbylowratesofadverseeventswiththesecompounds.Overall,PEPE/C/F/TAFshowedanacceptablesafetyprofileandgoodcompletionrates.Self-reportedanddruglevelsindicatedgoodadherence,confirmingthatE/C/F/TAFcouldbearegimenofchoiceforPEP.
Funding:GileadSciencesinc.
ResultsAllpatientsachievedormaintainedviralsuppressionHIV-RNA<50copies/mLfromweeks4to48Results
StudyparticipantsandStudyFlowchart
96individualswereincluded:-NoHIVpositivetestoractiveHBVorHCVatbaseline-6syphilisatinitialscreeningParticipantswereprimarilymale(n=75,77%)withamedianageof31years(range,18-69)ExposurestoHIVwere:-8occupational-88sexual,ofwhich64%wereMSMand47%wereunprotectedSixsourcepatientswereknowntobeHIV-infected(noHIV-RNAavailable)
E/C/F/TAFSINGLETABLETREGIMENFORPOST-EXPOSUREPROPHYLAXISGANTNERPierre1,HESSAMFARMojgan2,SOUALAMohamedFaouzi3,VALINNadia4,SIMONAnne5,AJANAFaiza6,BOUVETElisabeth7,ROUVEIXElisabeth8,COTTELaurent9,BANI-SADRFirouzé10,HUSTACHE-MATHIEULaurent11,LEBRETTEMarie-Gisèle12,MURETPatrice13;REYDavid14fortheE/C/F/TAFPEPStudyGroup.1 Laboratory ofMolecular Virology,HôpitauxUniversitaires de Strasbourg, Strasbourg; 2Médecine Interne etMaladies Infectieuses,Hôpital SaintAndré, CHUdeBordeaux, Bordeaux; 3Maladies Infectieuses et Tropicales, CHUPontchaillou, Rennes; 4Maladies infectieuses ettropicales,HôpitalSaint-Antoine,APHP,Paris;5MédecineInterneetImmunologieClinique,HôpitalPitié-Salpêtrière,APHP,Paris;6MaladiesInfectieusesetduVoyageur,CentreHospitalierdeTourcoing,Tourcoing;7MaladiesInfectieuses,HôpitalBichat,APHP,Paris;8MédecineInterne,HôpitalAmbroiseParé,APHP,Paris;9MaladiesInfectieusesetTropicales,HôpitaldelaCroixRousse,Lyon;10MaladiesInfectieusesetTropicales,HôpitalRobertDebré,Reims;11MaladiesInfectieusesetTropicales,HôpitalJeanMinjoz,Besançon;12MaladiesInfectieusesetTropicales,HôpitalTenon,APHP,Paris;13Laboratoiredepharmacologieclinique,INSERM,UMR1098,HôpitalJeanMinjoz,Besançon;14LeTraitd’Union,HIV-infectioncarecenter,HôpitauxUniversitairesdeStrasbourg,Strasbourg.
Health-relatedqualityoflife
Mean quality of life SF-12 measuresofphysicalandmentalhealthwereof50 (range, 27-64) and 47 (range,17-65) at baseline, 52 (range, 25-64)and48(range,25-67)onday14,and51 (range, 28-61) and 49 (range,22-61) on day 28, respectively(p>0.05)(seeFigure)
Correspondingauthor:
PierreGantner,LaboratoiredeVirologie,3,rueKoeberlé,67000Strasbourg,France.
pierre.gantner@icloud.com
PEPCompletionfailure(n=18)16losttofollow-up1consentwithdrawal
1stoppedPEPaspersonalchoice
96individualsincluded
101screenedindividualseligibleforPEP
Exclusions(n=5)3individualsdidnotreceivedatleastonedoseofE/C/F/TAF2sourcepatientwerefurther
testedHIV-negative
78individualscompletedPEPtillday28
TimeD0 D56 D112D28D14
96
8078
65 63
E/C/F/TAF
ParticipantsonPEP/follow-up(n)
TimeD28D14
8078
90-99%
Selfrepo
rted
adh
eren
ce(n
)
<90%
100%
A NS
D14
Elvitegravirtrou
ghlevels(m
g/L)
B
0
1
2
3
4
physical
mental
SF-12score
TimeD0 D14 D28
NS
5045
55
Creatin
ine(μmol/L)
020406080100120140
D0 D280
0,5
1
1,5
D0 D28020406080100120140
D0 D28020406080100120140
D0 D280
20406080100120140
D0 D28
GFR(m
L/min)
AST(IU
/L)
ALT(IU
/L)
Phosph
ate(m
mol/L)
E/C/F/TAFPEPStudyGroupBesançon:Hustache-Mathieu,Laurent;Muret,Patrice;Bordeaux:Hessamfar,Mojgan;Boulogne:Rouveix,Elisabeth;Charleville:Galempoix,Jean-Marc;Dijon:Piroth,Lionel;Lyon:Cotte,Laurent;Metz-Thionville:Truchetet,François;Pouaha,Jean;Muller,Philippe;Paris–Bichat:Bouvet,Elisabeth;Pellissier,Gérard;Paris–PitiéSalpêtrière:Simon,Anne;Paris–SaintAntoine:Valin,Nadia;Paris–Tenon:Lebrette,Marie-Gisèle;Reims:Bani-Sadr,Firouzé;Rennes:Souala,MohamedFaouzi;Strasbourg:Rey,David;Batard,Marie-Laure;Fischer,Patricia;Gantner,Pierre;Tourcoing:Ajana,Faiza.
NS NS NS NS NS
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