GEMCITABINE MYLAN

Main information

  • Trade name:
  • GEMCITABINE MYLAN
  • Dosage:
  • 200 Milligram
  • Pharmaceutical form:
  • Pdr for Soln for Infusion
  • Medicine domain:
  • Humans
  • Medicine type:
  • Allopathic drug

Documents

Localization

  • Available in:
  • GEMCITABINE MYLAN
    Ireland
  • Language:
  • English

Status

  • Source:
  • HPRA - Health Products Regulatory Authority - Ireland
  • Authorization number:
  • PA0405/055/001
  • Authorization date:
  • 28-08-2009
  • Last update:
  • 14-10-2016

Summary of Product characteristics: dosage, interactions, side effects

SummaryofProductCharacteristics

1NAMEOFTHEMEDICINALPRODUCT

GemcitabineMylan200mg,powderforsolutionforinfusion

2QUALITATIVEANDQUANTITATIVECOMPOSITION

Each10mlvialcontains200mgofgemcitabineforreconstitutionin5mlofsolvent.

Excipients

Each200mgvialcontains3.5mg(<1mmol)sodium.

Forafulllistofexcipientsseesection6.1.

3PHARMACEUTICALFORM

Powderforsolutionforinfusion.

Whitetooff-whiteplugorpowder.

4CLINICALPARTICULARS

4.1TherapeuticIndications

Gemcitabineisindicatedforthetreatmentoflocallyadvancedormetastaticbladdercancerincombinationwith

cisplatin.

Gemcitabineisindicatedfortreatmentofpatientswithlocallyadvancedormetastaticadenocarcinomaofthepancreas.

Gemcitabine,incombinationwithcisplatinisindicatedasfirstlinetreatmentofpatientswithlocallyadvancedor

metastaticnon-smallcelllungcancer(NSCLC).Gemcitabinemonotherapycanbeconsideredinelderlypatientsor

thosewithperformancestatus2.

Gemcitabineisindicatedforthetreatmentofpatientswithlocallyadvancedormetastaticepithelialovariancarcinoma,

incombinationwithcarboplatin,inpatientswithrelapseddiseasefollowingarecurrence-freeintervalofatleast6

monthsafterplatinum-based,first-linetherapy.

Gemcitabine,incombinationwithpaclitaxel,isindicatedforthetreatmentofpatientswithunresectable,locally

recurrentormetastaticbreastcancerwhohaverelapsedfollowingadjuvant/neoadjuvantchemotherapy.Prior

chemotherapyshouldhaveincludedananthracyclineunlessclinicallycontraindicated.

4.2Posologyandmethodofadministration

Gemcitabineshouldonlybeprescribedbyaphysicianqualifiedintheuseofanti-cancerchemotherapy.

Recommendedposology

Bladdercancer

Combinationuse

Therecommendeddoseforgemcitabineis1000mg/m²,givenby30-minuteinfusion.Thedoseshouldbegivenon

Days1,8and15ofeach28-daycycleincombinationwithcisplatin.Cisplatinisgivenatarecommendeddoseof70

mg/m²onDay1followinggemcitabineorday2ofeach28-daycycle.

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gradeoftoxicityexperiencedbythepatient.

Pancreaticcancer

Therecommendeddoseofgemcitabineis1000mg/m²,givenby30-minuteintravenousinfusion.Thisshouldbe

repeatedonceweeklyforupto7weeksfollowedbyaweekofrest.Subsequentcyclesshouldconsistofinjectionsonce

weeklyfor3consecutiveweeksoutofevery4weeks.Dosagereductionwitheachcycleorwithinacyclemaybe

appliedbaseduponthegradeoftoxicityexperiencedbythepatient.

NonsmallCelllungcancer

Monotherapy

Therecommendeddoseofgemcitabineis1000mg/m²,givenby30-minuteintravenousinfusion.Thisshouldbe

repeatedonceweeklyfor3weeks,followedbya1-weekrestperiod.This4-weekcycleisthenrepeated.Dosage

reductionwitheachcycleorwithinacyclemaybeappliedbaseduponthegradeoftoxicityexperiencedbythepatient.

Combinationuse

Therecommendeddoseforgemcitabineis1250mg/m²bodysurfaceareagivenasa30-minuteintravenousinfusionon

Day1and8ofthetreatmentcycle(21days).Dosagereductionwitheachcycleorwithinacyclemaybeappliedbased

uponthegradeoftoxicityexperiencedbythepatient.Cisplatinhasbeenusedatdosesbetween75-100mg/m²once

every3weeks.

Breastcancer

Combinationuse

Gemcitabineincombinationwithpaclitaxelisrecommendedusingpaclitaxel(175mg/m²)administeredonDay1over

approximately3-hoursasanintravenousinfusion,followedbygemcitabine(1250mg/m²)asa30-minuteintravenous

infusiononDays1and8ofeach21-daycycle.

Dosereductionwitheachcycleorwithinacyclemaybeappliedbaseduponthegradeoftoxicityexperiencedbythe

patient.Patientsshouldhaveanabsolutegranulocytecountofatleast1,500(x10 6

/l)priortoinitiationofgemcitabine

+paclitaxelcombination.

Ovariancancer

Combinationuse

Gemcitabineincombinationwithcarboplatinisrecommendedusinggemcitabine1000mg/m²administeredonDays1

and8ofeach21-daycycleasa30-minuteintravenousinfusion.Aftergemcitabine,carboplatinwillbegivenonDay1

consistentwithatargetAreaundercurve(AUC)of4.0mg/ml·min.Dosagereductionwitheachcycleorwithinacycle

maybeappliedbaseduponthegradeoftoxicityexperiencedbythepatient.

Monitoringfortoxicityanddosemodificationduetotoxicity

Dosemodificationduetononhaematologicaltoxicity

Periodicphysicalexaminationandchecksofrenalandhepaticfunctionshouldbemadetodetectnonhaematological

toxicity.Dosagereductionwitheachcycleorwithinacyclemaybeappliedbaseduponthegradeoftoxicity

experiencedbythepatient.Ingeneral,forsevere(Grade3or4)nonhaematologicaltoxicity,exceptnausea/vomiting,

therapywithgemcitabineshouldbewithheldordecreaseddependingonthejudgementofthetreatingphysician.Doses

shouldbewithhelduntiltoxicityhasresolvedintheopinionofthephysician.

Forcisplatin,carboplatin,andpaclitaxeldosageadjustmentincombinationtherapy,pleaserefertothecorresponding

SummaryofProductCharacteristics.

Dosemodificationduetohaematologicaltoxicity

Initiationofacycle

Forallindications,thepatientmustbemonitoredbeforeeachdoseforplateletandgranulocytecounts.Patientsshould

haveanabsolutegranulocytecountofatleast1,500(x10 6

/l)andplateletaccountof100,000(x10 6

/l)priortothe

initiationofacycle.

Withinacycle

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Treatmentomittedwillnotbere-instatedwithinacyclebeforetheabsolutegranulocytecountreachesatleast500

(x10 6

/l)andtheplateletcountreaches50,000(x10 6

/l).

*Treatmentomittedwillnotbere-instatedwithinacycle.Treatmentwillstartonday1ofthenextcycleoncethe

absolutegranulocytecountreachesatleast1,500(x10 6

/l)andtheplateletcountreaches100,000(x10 6

/l).

*Treatmentomittedwillnotbere-instatedwithinacycle.Treatmentwillstartonday1ofthenextcycleoncethe

absolutegranulocytecountreachesatleast1,500(x10 6

/l)andtheplateletcountreaches100,000(x10 6

/l).

Dosemodificationsduetohaematologicaltoxicityinsubsequentcycles,forallindications

Thegemcitabinedoseshouldbereducedto75%oftheoriginalcycleinitiationdose,inthecaseofthefollowing

haematologicaltoxicities:

Absolutegranulocytecount<500x10 6

/lformorethan5days

Absolutegranulocytecount<100x10 6

/lformorethan3days

Febrileneutropaenia

Platelets<25,000x10 6

Dosemodificationofgemcitabinewithinacycleforbladdercancer,NSCLCand

pancreaticcancer,giveninmonotherapyorincombinationwithcisplatin

Absolutegranulocytecount

(x10 6

/l) Plateletcount

(x10 6

/l) Percentageofstandard

doseofGemcitabine(%)

>1,000 and >100,000 100

500-1,000 or 50,000-100,000 75

<500 or <50,000 Omitdose*

Dosemodificationofgemcitabinewithinacycleforbreastcancer,givenincombinationwith

paclitaxel

Absolutegranulocytecount

(x10 6

/l) Plateletcount

(x10 6

/l) Percentageofstandard

doseofGemcitabine(%)

1,200 and >75,000 100

1,000-<1,200 or 50,000-75,000 75

700-<1,000 and 50,000 50

<700 or <50,000 Omitdose*

Dosemodificationofgemcitabinewithinacycleforovariancancer,givenincombination

withcarboplatin

Absolutegranulocytecount

(x10 6

/l) Plateletcount

(x10 6

/l) Percentageofstandard

doseofGemcitabine(%)

>1,500 and 100,000 100

1000-1,500 or 75,000-100,000 50

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Methodofadministration

Gemcitabineistoleratedwellduringinfusionandmaybeadministeredambulant.Ifextravasationoccurs,generallythe

infusionmustbestoppedimmediatelyandstartedagaininanotherbloodvessel.Thepatientshouldbemonitored

carefullyaftertheadministration.

Forinstructionsonreconstitution,seesection6.6

Specialpopulations

Patientswithrenalorhepaticimpairment

Gemcitabineshouldbeusedwithcautioninpatientswithhepaticorrenalinsufficiencyasthereisinsufficient

informationfromclinicalstudiestoallowforcleardoserecommendationsforthesepatientpopulations(seesections

4.4and5.2).

Elderlypopulation(>65years)

Gemcitabinehasbeenwelltoleratedinpatientsovertheageof65.Thereisnoevidencetosuggestthatdose

adjustments,otherthanthosealreadyrecommendedforallpatients,arenecessaryintheelderly(seesection5.2).

Paediatricpopulation(<18years)

Gemcitabineisnotrecommendedforuseinchildrenunder18yearsofageduetoinsufficientdataon

safetyandefficacy.

4.3Contraindications

Hypersensitivitytotheactivesubstanceortoanyoftheexcipients.

Breast-feeding(seesection4.6).

4.4Specialwarningsandprecautionsforuse

Prolongationoftheinfusiontimeandincreaseddosingfrequencyhavebeenshowntoincreasetoxicity.

Haematologicaltoxicity

Gemcitabinecansuppressbonemarrowfunctionasmanifestedbyleucopaenia,thrombocytopaeniaandanaemia.

Patientsreceivinggemcitabineshouldbemonitoredpriortoeachdoseforplatelet,leucocyteandgranulocytecounts.

Suspensionormodificationoftherapyshouldbeconsideredwhendrug-inducedbonemarrowdepressionisdetected

(seesection4.2).However,myelosuppressionisshortlivedandusuallydoesnotresultindosereductionandrarelyin

discontinuation.

Peripheralbloodcountsmaycontinuetodeteriorateaftergemcitabineadministrationhasbeenstopped.Inpatientswith

impairedbonemarrowfunction,thetreatmentshouldbestartedwithcaution.Aswithothercytotoxictreatments,the

riskofcumulativebone-marrowsuppressionmustbeconsideredwhengemcitabinetreatmentisgiventogetherwith

otherchemotherapy

Hepaticinsufficiency

Administrationofgemcitabineinpatientswithconcurrentlivermetastasesorapre-existingmedicalhistoryof

hepatitis,alcoholismorlivercirrhosismayleadtoexacerbationoftheunderlyinghepaticinsufficiency.

Laboratoryevaluationofrenalandhepaticfunction(includingvirologicaltests)shouldbeperformedperiodically.

Gemcitabineshouldbeusedwithcautioninpatientswithhepaticinsufficiencyorwithimpairedrenalfunctionasthere

isinsufficientinformationfromclinicalstudiestoallowcleardoserecommendationforthispatientpopulation(see

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Concomitantradiotherapy

Concomitantradiotherapy(giventogetheror7daysapart):Toxicityhasbeenreported(seesection4.5fordetailsand

recommendationsforuse).

Livevaccinations

Yellowfevervaccineandotherliveattenuatedvaccinesarenotrecommendedinpatientstreatedwithgemcitabine(see

section4.5).

Cardiovascular

Duetotheriskofcardiacand/orvasculardisorderswithgemcitabine,particularcautionmustbeexercisedwithpatients

presentingahistoryofcardiovascularevents.

Pulmonary

Pulmonaryeffects,sometimessevere(suchaspulmonaryoedema,interstitialpneumonitisoradultrespiratorydistress

syndrome(ARDS))havebeenreportedinassociationwithgemcitabinetherapy.Theaetiologyoftheseeffectsis

unknown.Ifsucheffectsdevelop,considerationshouldbemadetodiscontinuinggemcitabinetherapy.Earlyuseof

supportivecaremeasuremayhelpamelioratethecondition.

Renal

Clinicalfindingsconsistentwiththehaemolyticuraemicsyndrome(HUS)wererarelyreportedinpatientsreceiving

gemcitabine(seesection4.8).Gemcitabineshouldbediscontinuedatthefirstsignsofanyevidenceof

microangiopathichaemolyticanaemia,suchasrapidlyfallinghaemoglobinwithconcomitantthrombocytopaenia,

elevationofserumbilirubin,serumcreatinine,bloodureanitrogen,orLDH.Renalfailuremaynotbereversiblewith

discontinuationoftherapyanddialysismayberequired.

Fertility

Infertilitystudiesgemcitabinecausedhypospermatogenesisinmalemice(seesection5.3).Therefore,menbeing

treatedwithgemcitabineareadvisednottofatherachildduringandupto6monthsaftertreatmentandtoseekfurther

adviceregardingcryoconservationofspermpriortotreatmentbecauseofthepossibilityofinfertilityduetotherapy

withgemcitabine(seesection4.6).

Sodium

GemcitabineMylan,vialof200mg,contains3.5mg(<1mmol)sodiumpervial.Thisshouldbetakeninto

considerationbypatientsonacontrolledsodiumdiet.

GemcitabineMylan,vialof1000mg,contains17.5mg(<1mmol)sodiumpervial.Thisshouldbetakeninto

considerationbypatientsonacontrolledsodiumdiet.

GemcitabineMylan,vialof2000mg,contains35mg(<1.5mmol)sodiumpervial.Thisshouldbetakeninto

considerationbypatientsonacontrolledsodiumdiet.

4.5Interactionwithothermedicinalproductsandotherformsofinteraction

Nospecificinteractionstudieshavebeenperformed(seesection5.2)

Radiotherapy

Concurrent(giventogetheror7daysapart)-Toxicityassociatedwiththismultimodalitytherapyisdependenton

manydifferentfactors,includingdoseofgemcitabine,frequencyofgemcitabineadministration,doseofradiation,

radiotherapyplanningtechnique,thetargettissue,andtargetvolume.Pre-clinicalandclinicalstudieshaveshownthat

gemcitabinehasradiosensitisingactivity.Inasingletrial,wheregemcitabineatadoseof1,000mg/m²was

administeredconcurrentlyforupto6consecutiveweekswiththerapeuticthoracicradiationtopatientswithnon-small

celllungcancer,significanttoxicityintheformofsevere,andpotentiallylifethreateningmucositis,especially

oesophagitis,andpneumonitiswasobserved,particularlyinpatientsreceivinglargevolumesofradiotherapy[median

treatmentvolumes4,795cm 3

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radiotherapywithpredictabletoxicity,suchasaphaseIIstudyinnon-smallcelllungcancer,wherethoracicradiation

dosesof66Gywereappliedconcomitantlywithanadministrationwithgemcitabine(600mg/m²,fourtimes)and

cisplatin(80mg/m²twice)during6weeks.

Theoptimumregimenforsafeadministrationofgemcitabinewiththerapeuticdosesofradiationhasnotyetbeen

determinedinalltumourtypes.

Non-concurrent(given>7daysapart)-Analysisofthedatadoesnotindicateanyenhancedtoxicitywhengemcitabine

isadministeredmorethan7daysbeforeorafterradiation,otherthanradiationrecall.Datasuggestthatgemcitabinecan

bestartedaftertheacuteeffectsofradiationhaveresolvedoratleastoneweekafterradiation.

Radiationinjuryhasbeenreportedontargetedtissues(e.g.oesophagitis,colitis,andpneumonitis)inassociationwith

bothconcurrentandnon-concurrentuseofgemcitabine.

Others

Yellowfeverandotherliveattenuatedvaccinesarenotrecommendedduetotheriskofsystemic,possiblyfatal,

disease,particularlyinimmunosuppressedpatients.

4.6Fertility,pregnancyandlactation

Pregnancy

Therearenoadequatedatafromtheuseofgemcitabineinpregnantwomen.Studiesinanimalshaveshown

reproductivetoxicity(seesection5.3).Basedonresultsfromanimalstudiesandthemechanismofactionof

gemcitabine,thissubstanceshouldnotbeusedduringpregnancyunlessclearlynecessary.Womenshouldbeadvised

nottobecomepregnantduringtreatmentwithgemcitabineandtowarntheirattendingphysicianimmediately,should

thisoccurafterall.

Breast-feeding

Itisnotknownwhethergemcitabineisexcretedinhumanmilkandadverseeffectsonthesucklingchildcannotbe

excluded.Breast-feedingmustbediscontinuedduringgemcitabinetherapy.

Fertility

Infertilitystudiesgemcitabinecausedhypospermatogenesisinmalemice(seesection5.3).Therefore,menbeing

treatedwithgemcitabineareadvisednottofatherachildduringandupto6monthsaftertreatmentandtoseekfurther

adviceregardingcryoconservationofspermpriortotreatmentbecauseofthepossibilityofinfertilityduetotherapy

withgemcitabine.

4.7Effectsonabilitytodriveandusemachines

Nostudiesontheeffectsontheabilitytodriveandusemachineshavebeenperformed.However,gemcitabinehas

beenreportedtocausemildtomoderatesomnolence,especiallyincombinationwithalcoholconsumption.Patients

shouldbecautionedagainstdrivingoroperatingmachineryuntilitisestablishedthattheydonotbecomesomnolent.

4.8Undesirableeffects

ThemostcommonlyreportedadversedrugreactionsassociatedwithGemcitabinetreatmentinclude:nauseawithor

withoutvomiting,raisedlivertransaminases(AST/ALT)andalkalinephosphatase,reportedinapproximately60%of

patients;proteinuriaandhaematuriareportedinapproximately50%patients;dyspnoeareportedin10-40%ofpatients

(highestincidenceinlungcancerpatients);allergicskinrashesoccurinapproximately25%ofpatientsandare

associatedwithitchingin10%ofpatients.

Thefrequencyandseverityoftheadversereactionsareaffectedbythedose,infusionrateandintervalsbetweendoses

(seesection4.4).Dose-limitingadversereactionsarereductionsinthrombocyte,leucocyteandgranulocytecounts(see

section4.2).

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Frequenciesaredefinedas:Verycommon(1/10),Common(1/100to<1/10),Uncommon(1/1000to<1/100),Rare

(1/10,000to<1/1000),VeryRare(<1/10,000).

Thefollowingtableofundesirableeffectsandfrequenciesisbasedondatafromclinicaltrials.Withineachfrequency

grouping,undesirableeffectsarepresentedinorderofdecreasingseriousness.

SystemOrganClass Frequencygrouping

Bloodandlymphaticsystemdisorders Verycommon

-Leucopaenia(NeutropaeniaGrade3=19.3%;

Grade4=6%).

Bone-marrowsuppressionisusuallymildtomoderate

andmostlyaffectsthegranulocytecount(seesection4.2)

-Thrombocytopaenia

-Anaemia

Common

-Febrileneutropaenia

Veryrare

-Thrombocytosis

Immunesystemdisorders VeryRare

-Anaphylactoidreaction

Metabolismandnutritiondisorders Common

Anorexia

Nervoussystemdisorders Common

Headache

Insomnia

Somnolence

Cardiacdisorders Rare

Myocardialinfarct

Vasculardisorders Rare

Hypotension

Respiratory,thoracicandmediastinal

disorders Verycommon

Dyspnoea–usuallymildandpassesrapidlywithout

treatment

Common

Cough

Rhinitis

Uncommon

Interstitialpneumonitis(seesection4.4)

Bronchospasm–usuallymildandtransientbutmay

requireparenteraltreatment

Gastrointestinaldisorders Verycommon

Vomiting

Nausea

Common

Diarrhoea

Stomatitisandulcerationofthemouth

Constipation

Hepatobiliarydisorders Verycommon

Elevationoflivertransaminases(ASTandALT)and

alkalinephosphatase

Common

Increasedbilirubin

Rare

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Postmarketingexperience(spontaneousreports)frequencynotknown(can’tbeestimatedfromtheavailabledata)

Nervoussystemdisorders

Cerebrovascularaccident

Cardiacdisorders

Arrythmias,predominantlysupraventricularinnature

Heartfailure

Vasculardisorders

Clinicalsignsofperipheralvasculitisandgangrene

Respiratory,thoracicandmediastinaldisorders

Pulmonaryoedema

Adultrespiratorydistresssyndrome(seesection4.4)

Gastrointestinaldisorders

Ischaemiccolitis

Hepatobiliarydisorders

transferase(GGT)

Skinandsubcutaneoustissuedisorders Verycommon

Allergicskinrashfrequentlyassociatedwithpruritus

Alopecia

Common

Itching

Sweating

Rare

Ulceration

Vesicleandsoreformation

Scaling

Veryrare

Severeskinreactions,includingdesquamationand

bullousskineruptions

Musculoskeletalandconnectivetissue

disorders Common

Backpain

Myalgia

Renalandurinarydisorders VeryCommon

Haematuria

Mildproteinuria

Generaldisordersandadministration

siteconditions Verycommon

Influenza-likesymptoms-themostcommonsymptoms

arefever,headache,chills,myalgia,astheniaandanorexia.

Cough,rhinitis,malaise,perspirationandsleeping

difficultieshavealsobeenreported.

Oedema/peripheraloedema-includingfacialoedema.

Oedemaisusuallyreversibleafterstoppingtreatment

Common

Fever

Asthenia

Chills

Rare

Injectionsitereactions-mainlymildinnature

Injury,poisoning,andprocedural

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Skinandsubcutaneoustissuedisorders

Severeskinreactions,includingdesquamationandbullousskineruptions,Lyell’sSyndrome,Steven-Johnson

Syndrome

Renalandurinarydisorders

Renalfailure(seesection4.4)

Haemolyticuraemicsyndrome(seesection4.4)

Injury,poisoningandproceduralcomplications

Radiationrecall

Combinationuseinbreastcancer

Thefrequencyofgrade3and4haematologicaltoxicities,particularlyneutropaenia,increaseswhengemcitabineis

usedincombinationwithpaclitaxel.However,theincreaseintheseadversereactionsisnotassociatedwithan

increasedincidenceofinfectionsorhaemorrhagicevents.Fatigueandfebrileneutropaeniaoccurmorefrequentlywhen

gemcitabineisusedincombinationwithpaclitaxel.Fatigue,whichisnotassociatedwithanaemia,usuallyresolves

afterthefirstcycle.

*Grade4neutropaenialastingformorethan7daysoccurredin12.6%ofpatientsinthecombinationarmand5.0%of

patientsinthepaclitaxelarm.

Grade3and4AdverseEvents

Paclitaxelversusgemcitabinepluspaclitaxel

Number(%)ofPatients

Paclitaxelarm

(N=259) Gemcitabineplus

Paclitaxelarm(N=262)

Grade3 Grade4 Grade3 Grade4

Laboratory

Anaemia 5(1.9) 1(0.4) 15(5.7) 3(1.1)

Thrombocytopaenia 0 0 14(5.3) 1(0.4)

Neutropaenia 11(4.2) 17(6.6)* 82(31.3) 45(17.2)*

Non-laboratory

Febrileneutropaenia 3(1.2) 0 12(4.6) 1(0.4)

Fatigue 3(1.2) 1(0.4) 15(5.7) 2(0.8)

Diarrhoea 5(1.9) 0 8(3.1) 0

Motorneuropathy 2(0.8) 0 6(2.3) 1(0.4)

Sensoryneuropathy 9(3.5) 0 14(5.3) 1(0.4)

Grade3and4AdverseEvents

MVACversusGemcitabinepluscisplatin

Number(%)ofPatients

MVAC(methotrexate,

vinblastine,

doxorubicinand

cisplatin)arm

(N=196) Gemcitabineplus

cisplatinarm

(N=200)

Grade3 Grade4 Grade3 Grade4

Laboratory

Anaemia 30(16) 4(2) 47(24) 7(4)

Thrombocytopaenia 15(8) 25(13) 57(29) 57(29)

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Combinationuseinovariancancer

Sensoryneuropathywasalsomorefrequentinthecombinationarmthanwithsingleagentcarboplatin.

4.9Overdose

Thereisnoknownantidoteforoverdoseofgemcitabine.Dosesashighas5700mg/m²havebeenadministeredby

intravenousinfusionover30-minutesevery2weekswithclinicallyacceptabletoxicity.Intheeventofsuspected

overdose,thepatientshouldbemonitoredwithappropriatebloodcountsandreceivesupportivetherapy,asnecessary.

5PHARMACOLOGICALPROPERTIES

5.1Pharmacodynamicproperties

Pharmacotherapeuticgroup:pyrimidineanaloguesATCcode:L01BC05

Cytotoxicactivityincellcultures

Gemcitabineshowssignificantcytotoxiceffectsagainstavarietyofculturedmurineandhumantumourcells.Itsaction

isphase-specificsuchthatgemcitabineprimarilykillscellsthatareundergoingDNAsynthesis(S-phase)and,under

certaincircumstances,blockstheprogressionofcellsatthejunctionoftheG1/Sphaseboundary.Invitro,thecytotoxic

effectofgemcitabineisdependentonbothconcentrationandtime.

Antitumoralactivityinpreclinicalmodels

Inanimaltumourmodels,antitumouralactivityofgemcitabineisschedule-dependent.Whengemcitabineis

administereddaily,highmortalityamongtheanimalsbutminimalantitumouralactivityisobserved.If,however,

gemcitabineisgiveneverythirdorfourthday,itcanbeadministeredinnonlethaldoseswithsubstantialantitumoural

Nauseaandvomiting 37(19) 3(2) 44(22) 0(0)

Diarrhoea 15(8) 1(1) 6(3) 0(0)

Infection 19(10) 10(5) 4(2) 1(1)

Stomatitis 34(18) 8(4) 2(1) 0(0)

Grade3and4AdverseEvents

CarboplatinversusGemcitabinepluscarboplatin

Number(%)ofPatients

Carboplatinarm

(N=174) Gemcitabineplus

carboplatinarm

(N=175)

Grade3 Grade4 Grade3 Grade4

Laboratory

Anaemia 10(5.7) 4(2.3) 39(22.3) 9(5.1)

Neutropaenia 19(10.9) 2(1.1) 73(41.7) 50(28.6)

Thrombocytopaenia 18(10.3) 2(1.1) 53(30.3) 8(4.6)

Leucopaenia 11(6.3) 1(0.6) 84(48.0) 9(5.1)

Non-laboratory

Haemorrhage 0(0.0) 0(0.0) 3(1.8) 0(0)

Febrileneutropaenia 0(0.0) 0(0.0) 2(1.1) 0(0)

Infectionwithout

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Mechanismofaction

Cellularmetabolismandmechanismofaction:Gemcitabine(dFdC),whichisapyrimidineantimetabolite,is

metabolisedintracellularlybynucleosidekinasetotheactivediphosphate(dFdCDP)andtriphosphate(dFdCTP)

nucleosides.ThecytotoxiceffectofgemcitabineisduetoinhibitionofDNAsynthesisbytwomechanismsofactionby

dFdCDPanddFdCTP.First,dFdCDPinhibitsribonucleotidereductase,whichisuniquelyresponsibleforcatalysing

thereactionsthatproducedeoxynucleosidetriphosphates(dCTP)forDNAsynthesis.Inhibitionofthisenzymeby

dFdCDPreducestheconcentrationofdeoxynucleosidesingeneraland,inparticular,dCTP.Second,dFdCTPcompetes

withdCTPforincorporationintoDNA(self-potentiation).

Likewise,asmallamountofgemcitabinemayalsobeincorporatedintoRNA.Thus,thereducedintracellular

concentrationofdCTPpotentiatestheincorporationofdFdCTPintoDNA.DNApolymeraseepsilonlackstheability

toeliminategemcitabineandtorepairthegrowingDNAstrands.AftergemcitabineisincorporatedintoDNA,one

additionalnucleotideisaddedtothegrowingDNAstrands.Afterthisadditionthereisessentiallyacompleteinhibition

infurtherDNAsynthesis(maskedchaintermination).AfterincorporationintoDNA,gemcitabineappearstoinducethe

programmedcelldeathprocessknownasapoptosis.

Clinicaldata

Bladdercancer

ArandomisedphaseIIIstudyof405patientswithadvancedormetastaticurothelialtransitionalcellcarcinomashowed

nodifferencebetweenthetwotreatmentarms,gemcitabine/cisplatinversus

methotrexate/vinblastine/adriamycin/cisplatin(MVAC),intermsofmediansurvival(12.8and14.8months

respectively,p=0.547),timetodiseaseprogression(7.4and7.6monthsrespectively,p=0.842)andresponserate

(49.4%and45.7%respectively,p=0.512).However,thecombinationofgemcitabineandcisplatinhadabettertoxicity

profilethanMVAC.

Pancreaticcancer

InarandomisedphaseIIIstudyof126patientswithadvancedormetastaticpancreaticcancer,gemcitabineshoweda

statisticallysignificanthigherclinicalbenefitresponseratethan5-fluorouracil(23.8%and4.8%respectively,

p=0.0022).Also,astatisticallysignificantprolongationofthetimetoprogressionfrom0.9to2.3months(log-rank

p<0.0002)andastatisticallysignificantprolongationofmediansurvivalfrom4.4to5.7months(log-rankp<0.0024)

wasobservedinpatientstreatedwithgemcitabinecomparedtopatientstreatedwith5-fluorouracil.

Nonsmallcelllungcancer

InarandomisedphaseIIIstudyof522patientswithinoperable,locallyadvancedormetastaticNSCLC,gemcitabinein

combinationwithcisplatinshowedastatisticallysignificanthigherresponseratethancisplatinalone(31.0%and

12.0%,respectively,p<0.0001).Astatisticallysignificantprolongationofthetimetoprogression,from3.7to5.6

months(log-rankp<0.0012)andastatisticallysignificantprolongationofmediansurvivalfrom7.6monthsto9.1

months(log-rankp<0.004)wasobservedinpatientstreatedwithgemcitabine/cisplatincomparedtopatientstreated

withcisplatin.

InanotherrandomisedphaseIIIstudyof135patientswithstageIIIBorIVNSCLC,acombinationofgemcitabineand

cisplatinshowedastatisticallysignificanthigherresponseratethanacombinationofcisplatinandetoposide(40.6%

and21.2%,respectively,p=0.025).Astatisticallysignificantprolongationofthetimetoprogression,from4.3to6.9

months(p=0.014)wasobservedinpatientstreatedwithgemcitabine/cisplatincomparedtopatientstreatedwith

etoposide/cisplatin.

Inbothstudiesitwasfoundthattolerabilitywassimilarinthetwotreatmentarms.

Ovariancarcinoma

InarandomisedphaseIIIstudy,356patientswithadvancedepithelialovariancarcinomawhohadrelapsedatleast6

monthsaftercompletingplatinumbasedtherapywererandomisedtotherapywithgemcitabineandcarboplatin(GCb),

orcarboplatin(Cb).Astatisticallysignificantprolongationofthetimetoprogressionofdisease,from5.8to8.6months

(log-rankp=0.0038)wasobservedinthepatientstreatedwithGCbcomparedtopatientstreatedwithCb.Differences

inresponserateof47.2%intheGCbarmversus30.9%intheCbarm(p=0.0016)andmediansurvival18months

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Breastcancer

InarandomisedphaseIIIstudyof529patientswithinoperable,locallyrecurrentormetastaticbreastcancerwith

relapseafteradjuvant/neoadjuvantchemotherapy,gemcitabineincombinationwithpaclitaxelshowedastatistically

significantprolongationoftimetodocumenteddiseaseprogressionfrom3.98to6.14months(log-rankp=0.0002)in

patientstreatedwithgemcitabine/paclitaxelcomparedtopatientstreatedwithpaclitaxel.After377deaths,theoverall

survivalwas18.6monthsversus15.8months(logrankp=0.0489,HR0.82)inpatientstreatedwith

gemcitabine/paclitaxelcomparedtopatientstreatedwithpaclitaxelandtheoverallresponseratewas41.4%and26.2%

respectively(p=0.0002).

5.2Pharmacokineticproperties

Thepharmacokineticsofgemcitabinehavebeenexaminedin353patientsinsevenstudies.The121womenand232

menrangedinagefrom29to79years.Ofthesepatients,approximately45%hadnon-smallcelllungcancerand35%

werediagnosedwithpancreaticcancer.Thefollowingpharmacokineticparameterswereobtainedfordosesranging

from500to2,592mg/m²thatwereinfusedfrom0.4to1.2hours.

Peakplasmaconcentrations(obtainedwithin5minutesoftheendoftheinfusion)were3.2to45.5µg/ml.Plasma

concentrationsoftheparentcompoundfollowingadoseof1,000mg/m²/30-minutesaregreaterthan5µg/mlfor

approximately30-minutesaftertheendoftheinfusion,andgreaterthan0.4µg/mlforanadditionalhour.

Distribution

Thevolumeofdistributionofthecentralcompartmentwas12.4l/m²forwomenand17.5l/m²formen(inter-individual

variabilitywas91.9%).Thevolumeofdistributionoftheperipheralcompartmentwas47.4l/m².Thevolumeofthe

peripheralcompartmentwasnotsensitivetogender.Theplasmaproteinbindingwasconsideredtobenegligible.

Half-life:Thisrangedfrom42to94minutesdependingonageandgender.Fortherecommendeddosingschedule,

gemcitabineeliminationshouldbevirtuallycompletewithin5to11hoursofthestartoftheinfusion.Gemcitabinedoes

notaccumulatewhenadministeredonceweekly.

Metabolism

Gemcitabineisrapidlymetabolisedbycytidinedeaminaseintheliver,kidney,bloodandothertissues.Intracellular

metabolismofgemcitabineproducesthegemcitabinemono,diandtriphosphates(dFdCMP,dFdCDPanddFdCTP)of

whichdFdCDPanddFdCTPareconsideredactive.Theseintracellularmetaboliteshavenotbeendetectedinplasmaor

urine.Theprimarymetabolite,2'-deoxy-2',2'-difluorouridine(dFdU),isnotactiveandisfoundinplasmaandurine.

Excretion

Systemicclearancerangedfrom29.2l/hr/m²to92.2/hr/m²dependingongenderandage(inter-individualvariability

was52.2%).Clearanceforwomenisapproximately25%lowerthanthevaluesformen.Althoughrapid,clearancefor

bothmenandwomenappearstodecreasewithage.Fortherecommendedgemcitabinedoseof1000mg/m²givenasa

30-minuteinfusion,lowerclearancevaluesforwomenandmenshouldnotnecessitateadecreaseinthegemcitabine

dose.

Urinaryexcretion:Lessthan10%isexcretedasunchangeddrug.

Renalclearancewas2to7l/hr/m².

Duringtheweekfollowingadministration,92to98%ofthedoseofgemcitabineadministeredisrecovered,99%inthe

urine,mainlyintheformofdFdUand1%ofthedoseisexcretedinfaeces.

dFdCTPkinetics

Thismetabolitecanbefoundinperipheralbloodmononuclearcellsandtheinformationbelowreferstothesecells.

Intracellularconcentrationsincreaseinproportiontogemcitabinedosesof35-350mg/m²/30-minutes,whichgive

steadystateconcentrationsof0.4-5µg/ml.Atgemcitabineplasmaconcentrationsabove5µg/ml,dFdCTPlevelsdonot

increase,suggestingthattheformationissaturableinthesecells.

Half-lifeofterminalelimination:0.7-12hours.

dFdUkinetics

Peakplasmaconcentrations(3-15minutesafterendof30-minuteinfusion,1000mg/m²):28-52µg/ml.Trough

concentrationfollowingonceweeklydosing:0.07-1.12µg/ml,withnoapparentaccumulation.Triphasicplasma

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FormationofdFdUfromparentcompound:91%-98%.

Meanvolumeofdistributionofcentralcompartment:18l/m²(range11-22l/m²).

Meansteadystatevolumeofdistribution(Vss):150l/m²(range96-228l/m²).

Tissuedistribution:Extensive.

Meanapparentclearance:2.5l/hr/m²(range1-4l/hr/m²).

Urinaryexcretion:All.

Gemcitabineandpaclitaxelcombinationtherapy

Combinationtherapydidnotalterthepharmacokineticsofeithergemcitabineorpaclitaxel.

Gemcitabineandcarboplatincombinationtherapy

Whengivenincombinationwithcarboplatinthepharmacokineticsofgemcitabinewerenotaltered.

Renalimpairment

Mildtomoderaterenalinsufficiency(GFRfrom30ml/minto80ml/min)hasnoconsistent,significanteffecton

gemcitabinepharmacokinetics.

5.3Preclinicalsafetydata

Inrepeat-dosestudiesofupto6monthsindurationinmiceanddogs,theprincipalfindingwasscheduleanddose-

dependenthaematopoieticsuppressionwhichwasreversible.

Gemcitabineismutagenicinaninvitromutationtestandaninvivobonemarrowmicronucleustest.Longtermanimal

studiesevaluatingthecarcinogenicpotentialhavenotbeenperformed.

Infertilitystudies,gemcitabinecausedreversiblehypospermatogenesisinmalemice.Noeffectonthefertilityof

femaleshasbeendetected.

Evaluationofexperimentalanimalstudieshasshownreproductivetoxicitye.g.birthdefectsandothereffectsonthe

developmentoftheembryoorfoetus,thecourseofgestationorperi-andpostnataldevelopment.

6PHARMACEUTICALPARTICULARS

6.1Listofexcipients

Mannitol(E421),

Sodiumacetatetrihydrate,

Sodiumhydroxide(toadjustpH),

Hydrochloricacid(toadjustpH).

6.2Incompatibilities

Thismedicinalproductmustnotbemixedwithothermedicinalproductsexceptthosementionedinsection6.6.

6.3Shelflife

Beforereconstitution:2years.

Afterreconstitution:

Chemicalandphysicalin-usestabilityhasbeendemonstratedfor24hoursat25°C.However,fromamicrobiological

pointofview,theproductmustbeusedimmediately.Ifnotusedimmediately,in-usestoragetimesandconditionsprior

touseareundertheresponsibilityoftheuserandwouldnormallynotbelongerthan24hoursat25°C.

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6.4Specialprecautionsforstorage

Thismedicinalproductdoesnotrequireanyspecialstorageconditions.

Forstorageconditionsofthereconstitutedmedicinalproductseesection6.3

6.5Natureandcontentsofcontainer

10-mlvial(type-1transparentglass)ofgemcitabinepowder(200mg),withabromobutylstopperfittedwithacap

(Flip-offtype).

Packof1,5,10or20vials.

Notallpacksizesmaybemarketed.

6.6Specialprecautionsfordisposalandotherhandling

Gemcitabineisacytotoxicmedicinalproduct.

Handling

Thenormalsafetyprecautionsforcytostaticagentsmustbeobservedwhenpreparinganddisposingoftheinfusion

solution.Handlingofthesolutionforinfusionshouldbedoneinasafetyboxandprotectivecoatsandglovesshouldbe

used.Ifnosafetyboxisavailable,theequipmentshouldbesupplementedwithamaskandprotectiveglasses.

Ifthepreparationcomesintocontactwiththeeyes,thismaycauseseriousirritation.Theeyesshouldberinsed

immediatelyandthoroughlywithwater.Ifthereislastingirritation,adoctorshouldbeconsulted.Ifthesolutionis

spilledontheskin,rinsethoroughlywithwater.

Instructionsforreconstitution(andfurtherdilution,ifperformed)

Thismedicinalproducthasonlybeenshowntobecompatiblewith9mg/mL(0.9%)SodiumChlorideSolutionfor

Injection.Accordingly,onlythisdiluentshouldbeusedforreconstitution.Compatibilitywithotherdrugshasnotbeen

studied,andtherefore,itisnotadvisabletomixgemcitabinewithotherdrugsduringreconstitution.

Reconstitutionatconcentrationsgreaterthan38mg/mLmayresultinincompletedissolution,andshouldbeavoided.

Forthereconstitution,sloweraddtheappropriatevolumeof9mg/mL(0.9%)SodiumChlorideSolutionforInjection

(asshowninthetablebelow)andshaketillcompletelydissolved.

Theappropriateamountofdrugmaybefurtherdilutedwith9mg/mL(0.9%)SodiumChlorideSolutionforInjection

solution.

Medicinalproductsadministeredbytheparenteralrouteshouldbeinspectedvisuallyforparticulatematterand

discolouration,priortoadministration,wheneverthesolutionandcontainerpermit.

Likeallcytostatics,gemcitabinehydrochloridemustbehandledcautiously.Anyunusedproductmustbedestroyedin

Presentation Volumeof9mg/ml

(0.9%)Sodium

ChlorideSolution

forInjection

solutiontoadd Displacement

volume Final

concentration

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7MARKETINGAUTHORISATIONHOLDER

Generics(UK)Limited

StationClose

PottersBar

EN61TLHertfordshire

UnitedKingdom

8MARKETINGAUTHORISATIONNUMBER

PA405/55/1

9DATEOFFIRSTAUTHORISATION/RENEWALOFTHEAUTHORISATION

Dateoffirstauthorisation:28thAugust2009

10DATEOFREVISIONOFTHETEXT

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