real-world use of echinocandinsin an era of increasing … · 2017. 6. 12. · poster #245...

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College of Pharmacy 2013 Collge of Pharmacy 2013 BACKGROUND: Treatment of invasive candidiasis (IC) is rapidly developing due to the emergence of FKS-mediated echinocandin (echino)-resistant Candida species. Prevention of echino resistance will require development of more potent echinos or optimizing current echino use. The purpose of this study was to evaluate real-world echino utilization in hospitalized patients with suspected or confirmed IC to gain insight into antimicrobial stewardship interventions. METHODS: Patients admitted to an 800-bed quaternary care hospital in 2015-2016 given an echino were identified. Data from a random sample of all patients given an echino was compared to that of echino-treated patients IC (candidemia). Areas for stewardship interventions including special populations and unmet medical needs were identified. RESULTS: Five hundred and thirteen patients received 579 courses of echino therapy with a median treatment duration of 6 days (IQR: 3-12 days). Of these, 150 patients (51% male) aged 60±16 years (ICU: 64%; corticosteroids: 56%) were randomly selected and compared to 59 patients (47% male) aged 55±16 years (ICU: 81%; corticosteroids: 39%) with candidemia. Globally, echinos were started 15±19 days from admission for an average in-hospital duration of 6.6±5.9 days. Of the 150 randomly selected patients, 97 (65%) had a positive yeast culture (C. albicans: 43.3%) from a non-sterile site (urine: 51%; sputum: 28%), and 16 had candidemia (11%). Patients were commonly co- administered fluconazole (31%), another azole (11%), or an amphotericin B product (10%). One isolate had reduced susceptibility to echinos. In the 59 patients with candidemia (C. albicans: 45%; C. glabrata: 33%), echinos were started 12±18 days from admission for an average in-hospital therapy duration of 11±28 days. Patients were commonly co-administered fluconazole (53%), another azole (12%), or an amphotericin B product (24%). Nine patients (15%) with candidemia continued to require an echino after discharge. Three isolates had reduced susceptibility to echinos. CONCLUSIONS: Echinos are commonly used in severely ill patients late in the hospital course during extended hospitalizations. These data provide important target areas where stewardship interventions are possible to optimize care. A. K. Sofjan, A. Mitchell, D. N. Shah, T. Nguyen, M. Sim, A. Trojcak, N. D. Beyda, K. W. Garey Univ. of Houston Coll. of Pharmacy, Houston, TX, USA Invasive candidiasis (IC) is associated with up to 50% mortality Echinocandins (echinos) recommended for first-line treatment of IC Limitations of currently available echinos Daily dosing Emergence of echino resistance through FKS mutations Potential underdosing with current fixed doses Current antifungal use must be optimized and potential role(s) of new antifungal agents, such as CD101, need to be understood Novel echino (structural analog of anidulafungin) In vitro potency and spectrum of activity similar to other echinos Once weekly dosing (half-life >80 hours) Safety with high dose administration Significant target tissue distribution à target attainment suggests potential to treat less susceptible pathogens in vivo Ongoing phase II study in patients with IC Amelia K. Sofjan 1441 Moursund St. Room 223 Houston, TX 77027 [email protected] Phone: 713-743-6429 Fax: 832-842-8383 Real-World Use of Echinocandins in an Era of Increasing Antifungal Resistance ABSTRACT BACKGROUND RESULTS CONCLUSIONS Variable Empiric echino n = 150 Definitive echino n = 60 Age, years, mean (SD) 60 (16) 55 (16) Male, n (%) 77 (51) 28 (47) ICU at time of culture, n (%) 96 (64) 48 (81) Received corticosteroids, n (%) 84 (56) 23 (39) Positive yeast culture, n (%) 97 (65) 60 (100) Candida species, n (%) Candida albicans 42 (43) 27 (45) Candida glabrata 26 (27) 20 (33) Candida tropicalis 10 (10) 8 (14) Candida parapsilosis 19 (20) 4 (7) Culture site, n (%) Urine 49 (51) NA Sputum 27 (28) NA Blood 16 (11) 60 (100) Isolates with reduced susceptibility to echino, n (%) 1 (1) 3 (5) Concurrent antifungals, n (%) Fluconazole 46 (31) 32 (53) Other azoles 16 (11) 7 (12) Amphotericin B product 15 (10) 14 (24) Poster #245 OBJECTIVE A single-center retrospective cohort study Eligibility: adult patients admitted to an 800-bed tertiary care hospital between 2015-2016 given an echino Inclusion: Patients given empiric echino therapy (random sample) All patients given definitive echino therapy for candidemia Exclusion: prophylactic echino use in transplant & stem-cell patients A stewardship audit of the patients’ records by an infectious diseases (ID) pharmacist and an ID physician was performed to: Evaluate each patient’s treatment according to IC guidelines and clinical expertise Identify areas of unmet medical need Identify potential role(s) of new antifungal agents such as CD101 Table 1. Patient characteristics METHODS Funding: Cidara Therapeutics Inc. To identify the greatest unmet medical needs with current echino therapy by evaluating real-world echino utilization in hospitalized patients with suspected or confirmed invasive candidiasis (IC) 513 patients received 579 courses of echinos Initiation: 15±19 days from hospital admission 150 random patients who received empiric echinos included Stewardship assessment Empiric echino n = 150 Definitive echino n = 60 Received > 7 days of echino, n (%) 55 (37) 37 (64) On an echino on the last day of hospitalization, n (%) 44 (29) 18 (31) Discharged on an echino, n (%) 9 (6) 9 (16) Discharge setting for outpatient echinos Home health, n 5 4 Long term care, n 3 3 Skilled nursing facility, n 1 2 Outpatient duration of echino therapy, days (range) 16 (2-38) 16 (2-30) Discharged on an azole, n (%) 28 (19) 14 (24) Outpatient duration of azole therapy, days (range) 15 (5-84) 17 (6-30) Requirement for an echino due to an azole-resistant isolate, n (%) 18 (12) 34 (58) Echino-resistant Candida isolate with prior echino use, n (%) 1 (1) 2 (3) Table 2. Antimicrobial stewardship audit of empiric or definitive echinocandin therapy in 210 patients Median inpatient treatment duration: 6 days (IQR, 3-12 days) 60 patients who received definitive echinos for candidemia included Areas of unmet medical needs in current echino therapy were greatest in patients requiring >7 days of IV therapy, those eligible for discharge & receiving echino at time of discharge, and patients requiring outpatient IV echino therapy due to azole resistance A safe and effective, once-weekly echino has a potential role in addressing the unmet needs with current echino therapy

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Page 1: Real-World Use of Echinocandinsin an Era of Increasing … · 2017. 6. 12. · Poster #245 OBJECTIVE • A single-center retrospective cohort study • Eligibility: adult patients

College of Pharmacy 2013Collge of Pharmacy 2013

BACKGROUND:Treatmentofinvasivecandidiasis(IC)israpidlydevelopingduetotheemergenceofFKS-mediatedechinocandin(echino)-resistantCandida species.Preventionofechino resistancewillrequiredevelopmentofmorepotentechinos oroptimizingcurrentechino use.Thepurposeofthisstudywastoevaluatereal-worldechinoutilizationinhospitalizedpatientswithsuspectedorconfirmedICtogaininsightintoantimicrobialstewardshipinterventions.

METHODS:Patientsadmittedtoan800-bedquaternarycarehospitalin2015-2016givenanechino wereidentified.Datafromarandomsampleofallpatientsgivenanechino wascomparedtothatofechino-treatedpatientsIC(candidemia).Areasforstewardshipinterventionsincludingspecialpopulationsandunmetmedicalneedswereidentified.

RESULTS:Fivehundredandthirteenpatientsreceived579coursesofechino therapywithamediantreatmentdurationof6days(IQR:3-12days).Ofthese,150patients(51%male)aged60±16years(ICU:64%;corticosteroids:56%)wererandomlyselectedandcomparedto59patients(47%male)aged55±16years(ICU:81%;corticosteroids:39%)withcandidemia.Globally,echinos werestarted15±19daysfromadmissionforanaveragein-hospitaldurationof6.6±5.9days.Ofthe150randomlyselectedpatients,97(65%)hadapositiveyeastculture(C.albicans:43.3%)fromanon-sterilesite(urine:51%;sputum:28%),and16hadcandidemia (11%).Patientswerecommonlyco-administeredfluconazole(31%),anotherazole(11%),oranamphotericinBproduct(10%).Oneisolatehadreducedsusceptibilitytoechinos.Inthe59patientswithcandidemia (C.albicans:45%;C.glabrata:33%),echinos werestarted12±18daysfromadmissionforanaveragein-hospitaltherapydurationof11±28days.Patientswerecommonlyco-administeredfluconazole(53%),anotherazole(12%),oranamphotericinBproduct(24%).Ninepatients(15%)withcandidemiacontinuedtorequireanechino afterdischarge.Threeisolateshadreducedsusceptibilitytoechinos.

CONCLUSIONS:Echinos arecommonlyusedinseverelyillpatientslateinthehospitalcourseduringextendedhospitalizations.Thesedataprovideimportanttargetareaswherestewardshipinterventionsarepossibletooptimizecare.

A.K.Sofjan,A.Mitchell,D.N.Shah,T.Nguyen,M.Sim,A.Trojcak,N.D.Beyda,K.W.GareyUniv.ofHoustonColl.ofPharmacy,Houston,TX,USA

• Invasivecandidiasis(IC)isassociatedwithupto50%mortality• Echinocandins (echinos)recommendedforfirst-linetreatmentofIC• Limitationsofcurrentlyavailableechinos• Dailydosing• Emergenceofechino resistancethroughFKSmutations• Potentialunderdosing withcurrentfixeddoses

• Currentantifungalusemustbeoptimizedandpotentialrole(s)ofnewantifungalagents,suchasCD101,needtobeunderstood• Novelechino (structuralanalogofanidulafungin)• Invitropotencyandspectrumofactivitysimilartootherechinos• Onceweeklydosing(half-life>80hours)• Safetywithhighdoseadministration• Significanttargettissuedistributionà targetattainment

suggestspotentialtotreatlesssusceptiblepathogensinvivo• OngoingphaseIIstudyinpatientswithIC

AmeliaK.Sofjan1441MoursundSt.Room223Houston,[email protected]:713-743-6429Fax:832-842-8383

Real-WorldUseofEchinocandins inanEraofIncreasingAntifungalResistance

ABSTRACT BACKGROUND RESULTS

CONCLUSIONS

Variable Empiricechinon =150

Definitiveechinon =60

Age, years,mean (SD) 60(16) 55(16)Male, n(%) 77(51) 28(47)ICUattimeofculture,n(%) 96(64) 48(81)Receivedcorticosteroids,n(%) 84(56) 23(39)Positiveyeastculture,n(%) 97(65) 60(100)• Candida species,n(%)

Candida albicans 42(43) 27(45)Candida glabrata 26(27) 20(33)Candida tropicalis 10(10) 8(14)Candida parapsilosis 19(20) 4(7)

• Culturesite,n(%)Urine 49(51) NASputum 27(28) NABlood 16(11) 60(100)

Isolateswithreducedsusceptibilitytoechino,n(%) 1(1) 3(5)

Concurrent antifungals,n(%)Fluconazole 46(31) 32(53)Otherazoles 16(11) 7(12)Amphotericin Bproduct 15(10) 14(24)

Poster#245

OBJECTIVE

• Asingle-centerretrospectivecohortstudy• Eligibility:adultpatientsadmittedtoan800-bedtertiarycare

hospitalbetween2015-2016givenanechino• Inclusion:• Patientsgivenempiricechino therapy(randomsample)• Allpatientsgivendefinitiveechino therapyforcandidemia

• Exclusion:prophylacticechino useintransplant&stem-cellpatients• Astewardshipauditofthepatients’recordsbyaninfectious

diseases(ID)pharmacistandanIDphysicianwasperformedto:• Evaluateeachpatient’streatmentaccordingtoICguidelinesand

clinicalexpertise• Identifyareasofunmetmedicalneed• Identifypotentialrole(s)ofnewantifungalagentssuchasCD101

Table1.Patientcharacteristics

METHODS

Funding:Cidara TherapeuticsInc.

Toidentifythegreatestunmetmedicalneedswithcurrentechinotherapybyevaluatingreal-worldechino utilizationinhospitalizedpatientswithsuspectedorconfirmedinvasivecandidiasis(IC)

513patientsreceived579coursesofechinos• Initiation:15±19daysfromhospitaladmission• 150randompatientswhoreceivedempiricechinos included

Stewardship assessmentEmpiricechinon =150

Definitiveechinon =60

Received>7daysofechino, n(%) 55(37) 37(64)

Onanechino onthelastdayofhospitalization,n(%)

44(29) 18(31)

Dischargedonanechino, n(%) 9(6) 9(16)

Dischargesettingforoutpatientechinos

• Homehealth,n 5 4• Longtermcare, n 3 3• Skillednursingfacility, n 1 2

Outpatientdurationofechino therapy,days(range)

16(2-38) 16(2-30)

Dischargedonanazole, n(%) 28(19) 14(24)

Outpatientdurationofazoletherapy,days(range)

15(5-84) 17(6-30)

Requirementforanechino duetoanazole-resistantisolate, n(%)

18(12) 34(58)

Echino-resistantCandida isolatewithpriorechino use, n(%)

1(1) 2(3)

Table2.Antimicrobialstewardshipauditofempiricordefinitiveechinocandin therapyin210patients

• Medianinpatienttreatmentduration:6days(IQR,3-12days)• 60patientswhoreceiveddefinitiveechinos forcandidemia included

• Areasofunmetmedicalneedsincurrentechino therapyweregreatestinpatientsrequiring>7daysofIVtherapy,thoseeligiblefordischarge&receivingechino attimeofdischarge,andpatientsrequiringoutpatientIVechino therapyduetoazoleresistance

• Asafeandeffective,once-weeklyechino hasapotentialroleinaddressingtheunmetneedswithcurrentechino therapy