in therivaroxaban group died.Apixaban is an oral active Element Xa inhibitor derivedfrom razaxaban, Celecoxib with superiorpharmacological proprieties. It is a modest molecule ableto inhibit in a selective and reversible manner the activesite of both 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 therapy of DVTin a dose acquiring 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 patients. 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% on 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, like edoxaban, are also underway.
CONCLUSIONSThe current management of VTE is largely based on theuse of anticoagulant drugs, both parenteral drugs such asUFH, LMWH or fondaparinux for the therapy on the acutephase and oral drugs like 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 on the disease, LMWH has largelyreplaced UFH hence contributing to simplify the managementof VTE, and now a sizable proportion of patients with DVTdo not ought to be hospitalized and can be completely 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 ought to be periodicallybalanced in each patient against their risks in termsof safety and their inconvenient HSP management. In a verynear future, the armamentarium of clinicians involved inthe prevention and therapy of thromboembolic disorderscould Alogliptin grow to be much larger. Following the optimistic outcomes of thefirst clinical trials, new direct thrombin inhibitors and directFactor Xa inhibitors that are administered orally are closelyapproaching the marketplace. With predictable anticoagulant responsesand low possible for food-drug and drug-drug interactions,these new agents can be given in fixed doses withoutcoagulation monitoring. These properties as well as the oral administrationrender these compounds a lot more practical than bothvitamin K antagonists and LMWH.
According to style 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 are tested as a stand-alone therapy forboth DVT and PE. Hence, patients Celecoxib with VTE might be treatedwith a single oral agent appropriate following the objective diagnosisof the disease. Particular locations of certain interest for thesenew agents consist of the therapy of patients with cancerand VTE, for whom long term therapy with LMWH iscurrently suggested and for whom an oral agent witha low propensity for drug-drug interactions could representthe best therapy, and not surprisingly the long term treatmentof patients with unprovoked VTE, where the complex balancebetween rewards and risks on the currently availabledrugs might be simplified using the use of a lot 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 patients 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 needed. In earlierresearch, it was shown to be safe and successful for preventingvenous thromboembolism in orthopedic surgery, said AVERROESlead investigator Dr. Connolly. He also noted that strokerisk is high in AF patients and that even though vitamin K agonisttherapy is successful against stroke, it can be unsuitable for up to 50%of patients because of the difficulty in controlling the Inter -national Normalized Ratioand bleeding.AVERROES, a double
Saturday, April 20, 2013
Mysterious Details On Alogliptin Celecoxib Disclosed By The Industry Experts
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