in therivaroxaban group died.Apixaban is an oral active Element Xa inhibitor derivedfrom razaxaban, Celecoxib with superiorpharmacological proprieties. It is a small molecule ableto inhibit inside a selective and reversible manner the activesite of both cost-free and prothrombinase-bound Element Xa.Preclinical studies demonstrate that apixaban has an oralbioavailability of more than 50%: its plasma peak is achievedin about 3 h and its half-life is about 12 h. The drugis absorbed within the gastrointestinal tract, is metabolised inthe liver by cythocrome-dependent and -independent mechanismsand it can be eliminated via both the renal and thefaecal routes.Apixaban has been assessed for the treatment of DVTin a dose obtaining study. Patientswere randomised to obtain apixaban 5 mg bid, 10 mg bid,20 mg od or LMWH vitamin K antagonists.
The primaryefficacy outcome, defined as the composite of symptomaticrecurrent VTE and asymptomatic deterioration within the thromboticburden as assessed by repeat bilateral compression ultrasonographyand perfusion lung scan, occurred in 4.7% ofpatients treated with apixaban and in 4.2% of LMWH/vitaminK antagonists treated individuals. No dose effect was observedacross apixaban Celecoxib doses. The principal safety outcome,defined as the composite of significant and clinically relevantnon-major bleeding, occurred in 7.3% in the apixaban treatedpatients and in 7.9% of LMWH/vitamin K antagonists treatedpatients. On the basis of this study, phase III studies, testing apixaban atthe doses of 10 mg and 5 mg twice daily, are now undergoing.Studies assessing the efficacy and safety of other factor Xainhibitors, for example edoxaban, are also underway.
CONCLUSIONSThe current management of VTE is largely depending on theuse of anticoagulant drugs, both parenteral drugs such asUFH, LMWH or fondaparinux for the treatment in the acutephase and oral drugs for example the vitamin K antagonists forthe long term secondary prevention. All these drugs havebeen proven to be extremely successful in preventing thrombuspropagation, embolization, Alogliptin and recurrence. For the managementof the acute phase in the disease, LMWH has largelyreplaced UFH therefore contributing to simplify the managementof VTE, and now a large proportion of individuals with DVTdo not should be hospitalized and can be entirely treatedas outpatients.
For the long term secondary prevention, vitaminK antagonists remain the only choice for clinicians,and their clear rewards when it comes to efficacy should be periodicallybalanced in each and every patient against their risks in termsof safety and their inconvenient HSP management. Inside a verynear future, the armamentarium of clinicians involved inthe prevention and treatment of thromboembolic disorderscould Alogliptin grow to be much larger. Immediately after the good final results of thefirst clinical trials, new direct thrombin inhibitors and directFactor Xa inhibitors which can be administered orally are closelyapproaching the market. With predictable anticoagulant responsesand low potential for food-drug and drug-drug interactions,these new agents may be given in fixed doses withoutcoagulation monitoring. These properties and the oral administrationrender these compounds more convenient than bothvitamin K antagonists and LMWH.
Based on design of thephase III clinical trials, we can speculate that a few of thesecompounds will challenge the vitamin K antagonists for thelong term secondary prevention of VTE, and that other willalso challenge the parenteral drugs for the acute phase management,as they're tested as a stand-alone treatment forboth DVT and PE. Hence, individuals Celecoxib with VTE might be treatedwith a single oral agent right following the objective diagnosisof the disease. Particular places of distinct interest for thesenew agents incorporate the treatment of individuals with cancerand VTE, for whom long term treatment with LMWH iscurrently suggested and for whom an oral agent witha low propensity for drug-drug interactions could representthe best therapy, and obviously the long term treatmentof individuals with unprovoked VTE, where the complex balancebetween rewards and risks in the currently availabledrugs might be simplified with all the use of more practicalIn what discussant Dr.
Arnesen termed a landmark study,the AVERROES trialshowed that the anticoagulant apixabanlowered the incidence of strokeby more than 50%, compared with aspirinin individuals withatrial fibrillationwho were not candidates for therapy witha vitamin K antagonist.Apixaban is an oral, selective direct factor Xa inhibitor witha 12-hour half-life and numerous excretion pathways.No routine Alogliptin coagulation monitoring is required. In earlierresearch, it was shown to be secure and successful for preventingvenous thromboembolism in orthopedic surgery, said AVERROESlead investigator Dr. Connolly. He also noted that strokerisk is high in AF individuals and that despite the fact that vitamin K agonisttherapy is successful against stroke, it can be unsuitable for up to 50%of individuals because of the difficulty in controlling the Inter -national Normalized Ratioand bleeding.AVERROES, a double
Saturday, April 20, 2013
Undiscovered Details Of Alogliptin Celecoxib Uncovered By The Experts
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