Monday, April 8, 2013

Convert Your New (-)-MK 801 A 205804 Into A Complete Goldmine

ivaroxaban and because of this the net clinicalbenefitfavored enoxaparin. Given that patients in Magellan constituteda heterogeneous group affected by different diseases, a subgroupanalysis is at present ongoing to identify patients whocould be related with a net clinical benefit.Therapy Trials.EINSTEIN-DVT (-)-MK 801 EVALUATION is aphase III clinical trial comparing rivaroxaban, 15 mg POBID for 3 weeks followed by 20 mg daily, versus enoxaparinfollowed by VKA, for 3 to 12 months, in patients with acutesymptomatic DVT. The results showed that rivaroxabanhad noninferior efficacy with respect towards the primaryoutcome that was the prevention of symptomatic recurrentDVT. The rate of bleedingwas equivalent among both groups.
EINSTEIN PE is often a phase III clinical trial, completedbut not published however, that (-)-MK 801 compares rivaroxaban 15 mg BIDfor 3 weeks followed by 20mg daily to enoxaparin 40 mg SQBID for at least 5 days, in combination with VKAin the treatment of patients with acute symptomatic PE withor with no symptomatic DVT. The primary endpoint is thecomposite of recurrent DVT and/or PE occurring throughout the3-, 6-, and 12-month study treatment periods.EINSTEIN-EXTENSION study is often a phase III clinicaltrial developed to assess the efficacy and safety of rivaroxaban20 mg daily for 6 to 12 months, versus placebo in patientswho had completed 6 to 12 months of anticoagulant treatmentfor their acute episode of VTE. The incidence of VTEwas 1.3% versus 7.1% for rivaroxaban A 205804 and placebo, respectively. The results demonstrated that rivaroxabanwas related to an 82% relative danger reduction inthe recurrence of VTE in this group of patients.
The rateof bleeding for the rivaroxaban group was low and nonstatisticallysignificant.2.2. PARP Apixaban. Apixaban is one more oral, potent, reversible,and direct FXa inhibitor that has been tested for VTE treatmentand prophylaxis. It's a very selective drug and likerivaroxaban can inhibit free of charge FXa also as prothrombinaseactivity. Apixaban features a high oral bioavailability and aftera rapid oral absorption within the stomach and smaller intestine,reaches a Cmax approximately 1–3 hours after administration.Its half-life is 8–15 hours and about 87% is bound toplasma proteins. Apixaban features a multimodal mechanismof elimination. Most of the drug is excreted in thefeces, other part through CYP3A4-dependent mechanisms in theliver, and one-fourth from the drug is eliminated within the urine.
For this reason apixaban probably may be safelyused in patients with renal and hepatic insufficiency; butlike rivaroxaban, its concomitant use with potent CYP3A4inhibitors like ketoconazole and ritonavir, should be avoided.The PT and aPTT are prolonged by the use A 205804 of apixabanin a concentration-dependent fashion. Nevertheless; simply because attherapeutic concentrations the influence of apixaban on the PTand aPTT is minimal, these tests will not be sensitive sufficient forthe monitoring from the drug. Generally, if ever needed, anFXa inhibition assay will be the best approach to monitor the activity ofapixaban.2.2.1. Clinical Trials of Apixaban in VTE. Apixaban is in theprocess of approval in Europe for prophylaxis after majororthopedic surgery. The ADVANCE 1, 2, and 3 trials are thestudies presented to support this indication.
Other trials toevaluate apixaban for the prevention of VTE in patients hospitalizedor with metastatic cancer are also ongoing.Major Prevention Trials.ADVANCE-1 is often a phase IIIstudy that compared apixaban 2.5mg PO BID with enoxaparin30mg (-)-MK 801 SQ BID for prevention of VTE after TKR. Bothdrugs had been started 12–24 h after operation and also the durationof treatment was 10–14 days. The results showed thatapixaban did not meet the prespecified statistical criteria fornon-inferiority, but its use was associatedwith reduce rates of clinically relevant bleeding and it had asimilar adverse-event profile.ADVANCE-2 is often a phase III clinical trial that comparedapixaban 2.5mg PO BIDwithenoxaparin 40 mg dailyfor preventionof VTE after TKR.
The results showed that apixabanhad noninferior efficacy with respect towards the primary outcomethat was a composite of total VTE plus all-cause mortality. Further, apixaban was associatedwith a equivalent danger of bleeding.ADVANCE-3 is often a phase III clinical trial comparingapixaban 2.5mg PO BIDwithenoxaparin 40 mg dailyfor thromboprophylaxisafter A 205804 THR. The primary efficacy outcome,a composite of VTE plus all-cause mortality, occurred in1.4% from the patients within the apixaban group and in 3.9%of the patients within the enoxaparin group. The rates of bleeding inboth groups had been equivalent. It was concluded that among patientsundergoing hip replacement, thromboprophylaxiswith apixaban, as compared with enoxaparin, was associatedwith reduce rates of VTE, with no improved bleeding.ADOPT is often a phase III clinical trial, completed but notpublished however, developed to assess the efficacy and safety ofapixaban, 2.5 gmg POBID versus enoxaparin 40 mg SQ dailyfor prophylaxis of VTE in acutely ill medical subjects duringand following hospitalization. The primary efficacy outcomeis a composit

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