
体内研究Palovarotenesuppressespost-traumaticchondrogenesisandosteogenesisandmitigatedtrauma-inducedectopicboneformation.Palovaroteneinhibitssubcutaneousandintramuscularheterotopicossification(HO)inmice.Palovaroteneisgivenorallyfor14daysat1mg/kg/daystartingonpost-operativeday(POD)1orPOD-5,andHOamount,wounddehiscenceandrelatedprocessesaremonitoredforupto84dayspostinjury.Comparedtovehicle-controlanimals,PalovarotenesignificantlydecreasesHOby50to60%regardlesChemicalbooksofwhenthetreatmentstartedandifinfectionispresent.Startingfromday1ofinjury,halfoftheAcvr1cR206H/+micearetreatedwithPalovarotenebydailygavagefor14daysandtheotherhalfreceivedvehicleascontrol.AnalysisbymCTand3Dimagereconstructionatday14showsthatlargeHOtissuemasseshaveformedinthetargetedlegofAcvr1cR206H/+mutantmicereceivingvehicle,butHOformationisgreatlydiminishedinPalovarotene-treatedcompanionsbymorethan80%basedonbonevolume/totalvolumequan