prucalopride
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TreatmentofGIDysmotilityinSclerodermaWiththeNewEnterokineticAgentPrucalopride
G.E.Boeckxstaens,M.D.,Ph.D.,J.F.W.M.Bartelsman,M.D.,L.Lauwers,M.D.,andG.N.J.Tytgat,M.D.,Ph.D.DivisionofGastroenterologyandHepatology,AcademicMedicalCenter,Amsterdam,TheNetherlands;andJanssenResearchFoundation,Beerse,Belgium
ABSTRACTSclerodermaisamultisystemdisorderfrequentlyresultingindisturbedGImotility.Although,especiallyearlyinthedisease,symptomaticimprovementisachievedwithproki-neticagents,moresevereGImanifestationsofsclerodermamaybedifficulttotreat,leadingtoparenteralfeedingandhospitalization.Recently,anewserotonin(5-HT4)receptoragonistprucalopridewasshowntohaveremarkableproki-neticproperties,resultinginsymptomaticimprovementandincreasedfrequencyofdefecationinpatientswithchronicfunctionalconstipation.Herewereporttwocasesofsclero-dermawithGImanifestationinwhichpreviousprokinetictreatmentfailed,butwherethepatientsweresuccessfullytreatedwithprucalopride.Ourdatasuggestthatprucalo-pridemaybeapromisingandeffectivedrugtotreatGImotilitydisordersinscleroderma.However,furtherplace-bo-controlleddoubleblindstudiesareneededforfulldoc-umentationoftheusefulnessofprucaloprideinpatientswithscleroderma.(AmJGastroenterol2002;97:194–197.©2002byAm.Coll.ofGastroenterology)
INTRODUCTIONSclerodermaorprogressivesystemicsclerosisisamultisys-temdisorderofthesmallarteriesresultinginskinabnor-malities,Raynaud’sdisease,polyarthritis,andlung,heart,andkidneyinvolvement(1).About90%ofthepatientswilldevelopGImanifestations,mostcommonlyinvolvingtheesophaguswithdysphagiaandgastroesophagealreflux.Also,gastricemptyingcanbedelayedbecauseofsluggishmotilityofthestomachin57–75%ofthepatients(2).Involvementofthesmallintestine,occurringinapproxi-mately40–50%ofthepatients,resultsinabdominalbloat-ing,distension,nausea,andvomiting(3).Inaddition,ab-normalitiesorevenabsenceofphaseIIIactivityofthemigratingmotorcomplexandimpairedcontractilitymayresultinintestinalstasiswithbacterialovergrowth(4).Pa-tientscanalsopresentwithepisodesofileusincaseofpseudo-obstruction.Finally,constipation(5)oranalincon-tinenceduetoinvolvementoftheinternalanalsphincteroccursin10–50%ofthepatients(1,3).Treatmentofthesemotilitydisordersisoftendifficult.Prokineticagentssuchasmetoclopramide(6),erythromycin(7),andcisapride(8)havebeenshowntobeeffectiveinsomepatients,especiallyintheearlycourseofthedisease.However,inmoreadvanceddisease,thetherapeuticeffectoftheseagentsoftenattenuatesdramatically,necessitatinghospitalizationandparentalfeeding.Recently,thenewserotonin(5-HT4)receptoragonistprucalopridewasshowntohaveremarkablecolonicproki-neticproperties,acceleratingcolonictransitinhealthyvol-unteers(9),andtoinducemassmovementsindogs(10).Thesepropertiesresultedinsymptomaticimprovementandinincreasedfrequencyofdefecationinpatientswithchronicfunctionalconstipation(11).Herewereportontheeffectofthisnewprokineticagentintwopatientswithsclerodermaanddisorderedintestinaltransitinwhomprevioustreatmentwithlaxatives,otherprokinetics,oroctreotidehasfailed.PrucalopridetreatmentincreasedGImotility,whichledtosubjectiveimprovement.CASEREPORTSCase1Thefirstpatientwasa60-yr-oldfemalewitharterialhyper-tension,chronicobstructivepulmonarydisease,andahis-toryofhysterectomyandovariectomy.Shewasalsoknowntohavelong-standingscleroderma,firstdiagnosed19yrago,withskininvolvement,severeconstipation,andincon-tinenceduetoparadoxicaldiarrhea.Atpresentationthepatientdidnothavespontaneousdefecation,withoutlaxa-tives,despitehighfiberintake.Shealsocomplainedofdysphagia,pyrosis,earlysatiety,andabdominaldistension.Becauseoffecalincontinence,shewasmarkedlysociallydisabled.Aphysicalexaminationrevealedthickenedskin,atbothhands,butnotypicalsclerodermafacies.Nootherabnormalitieswerefound.Bloodpressurewas140/90mmHg.Sheweighed74kgforalengthof168cm.Aroutinelaboratoryexaminationrevealednoabnormal-ities.Antinuclearantibodies,antiribonucleoprotein,anti–SS-A,andanti–SS-Bwerenegative.Aplainabdominalx-rayshowedadilatedcolonfilledwithstool.Onesopha-gealmanometry,atypicalpictureofabsentperistalsisandabsentloweresophagealpressurewasnoted.Anorectalma-
THEAMERICANJOURNALOFGASTROENTEROLOGYVol.97,No.1,2002©2002byAm.Coll.ofGastroenterologyISSN0002-9270/02/$22.00PublishedbyElsevierScienceInc.PIIS0002-9270(01)03958-2