uires no coagulation monitoringand may be given once everyday. It prolongs the activated partialthromboplastin time, but its effect isn't dose-linear andit Lonafarnib isn't suitable for a precise quantification of the anticoagulanteffect. At the very least 80% of dabigatran is excreted unchangedvia the kidneys; thus, the drug is contraindicatedin patients with severe renal failure, having a creatinineclearance less than 30 mL/min. Dabigatran etexilatehas been already licensed within the European Union andin Canada for the prevention of VTE in patients undergoinghip- and knee-replacement surgery, having a recommendeddose of 220 mg once everyday for all patients but those withmoderate renal insufficiencyand the elderly, forwhom the suggested dose is 150 mg once everyday.A dose reduction is also suggested for patients on amiodaronetreatment.
Dabigatran etexilate is presently undergoing a large phaseIII plan for the evaluation of its efficacy and safety inthe acute treatment end within the secondary prevention of VTE.The RE-COVER trial Lonafarnib evaluated Capecitabine dabigatran for 6 month treatmentof acute symptomatic VTE, although the RE-MEDY andthe RE-SONATE trials are recruiting patients who've beensuccessfully treated with regular doses of an approved anticoagulantfor three to six months or who've completed6 to 18 months of treatment with vitamin K antagonist forconfirmed acute symptomatic VTE, respectively. The RECOVERstudy was published at the end of 2009. Patientswith acute VTE, DVT and/or PE, who had been initially treatedwith parenteral anticoagulants, had been randomized to receivedabigatran etexilate, administered at a dose of 150 mg twicedaily, or dose adjusted warfarin.
The primary outcome of the study wasthe 6-month incidence of recurrent symptomatic, objectivelyconfirmed VTE and associated deaths. Thirty of the 1,274dabigatran patients, NSCLC as compared with 27 of the 1,265warfarin patients, had recurrent VTE. The difference in riskwas 0.4 percentage points. The hazard ratio with dabigatran was 1.10. Significant bleeding episodes occurredin 20dabigatran patients and in 24warfarin patients, and episodes of any bleeding had been observedin 205dabigatran patients and in 277warfarinpatients.2. Direct element Xa inhibitorsRivaroxaban is the 1st of this new class of drugs. It isa potent and selective oral Element Xa inhibitor having a particularchemical structure in its active-site binding region thatplays a function within the oral absorption of the drug, having a relativelyhigh bioavailabity.
Plasma levels of thedrug peak soon after 3 to 4 hours, having a mean half-life rangingfrom 5 to 9 hours in young people, and from 11 to13 hours within the elderly. The primary route of excretionis renal, but the drug is also expelled via the faecal/biliarroute. Rivaroxaban Capecitabine may be administered at a fixed dosein any patient and doesn't need laboratory monitoring.Also rivaroxaban has been licensed within the European Unionand in Canada for the prevention of VTE in patients undergoinghip- and knee-replacement surgery, having a recommendeddose of 10 mg once everyday.Two phase II, dose-finding studies compared rivaroxabanadministered at total everyday doses ranging from 20 mg to60 mg with regular therapy with LMWH followed by oralvitamin K antagonists.
Based on the good resultsof these studies, the following doses had been selected for furtherinvestigation within the three phase III clinical Lonafarnib trials aimed toassess the acute phase and also the long term treatment of DVTand PE: 15 mg bid for 3 weeks followedby 20 mg qd within the ongoing Einstein DVT and EinsteinPE studies, in which patients with objectively confirmed,symptomatic DVT or PE are randomized to treatment withrivaroxaban alone or with LMWH and vitamin K antagonistsfor a total period of 3 to 12 months, and 20 mg qd in theEinstein Extension study, in which patients who had completed6 to 12 months of anticoagulant treatment with eithervitamin K antagonists or rivaroxabanafter an acute episode of VTE wererandomized to rivaroxaban or placebo for added 6 to12 months.
The Einstein Extension study is already completed,and also the outcomes have been presented at the AmericanSociety of Hematology meeting in December 2009. Inthis randomised, double blind, placebo-controlled study, theprimary efficacy outcome was the recurrence of symptomaticVTE and also the principal safety outcome was the occurrenceof significant bleeding. Throughout treatment, symptomatic Capecitabine recurrentVTE events occurred in 7.1% patients treated with placeboand in 1.3% patients treated with rivaroxaban. Soon after stoppingthe study medication, 1.0% symptomatic recurrent VTEevents occurred in both groups during the one month observationalperiod of follow up. No significant bleeding eventswere documented within the group of patients treated with placebo,4major bleeding events occurred within the rivaroxabangroup. None of these bleeding events werefatal or occurred inside a critical internet site. Clinically relevant non-majorbleeding occurred in 1.2% and in 5.4% patients randomizedto placebo and rivaroxaban, respectively. Twopatients within the placebo group and 1patient
Saturday, April 20, 2013
The New Capecitabine Lonafarnib Is Twice The Fun
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