Tuesday, April 16, 2013

Eight Exemplary Approaches Formapk inhibitor ALK Inhibitors

lthough they do interact withpotentinhibitors of P-glycoproteinandpotent inhibitors of the cytochrome P450 enzyme CYP3A4.Evidence of primary VTE prevention from clinical trialsThe remainder of this overview will focus on the publishedevidence from the clinical ALK Inhibitors trial programmes for dabigatranetexilate, rivaroxaban and apixaban, when it comes to theevaluation of their efficacy and safety for the primaryprevention of VTE in individuals undergoing elective hip andknee replacement surgery.Dabigatran etexilateThree phase III clinical trials that form part of the REVOLUTION? study programme undertaken by BoehringerIngelheim have been completed and published on theefficacy and safety of dabigatran etexilate for the primaryprevention of VTE following elective hip and kneereplacement surgery.
The three clinical trials ALK Inhibitors hadidentical non-inferiority study designs with a primaryendpoint of a composite of total VTEand all-cause death in the course of therapy. Theprimary safety outcome was the occurrence of bleedingduring therapy. Key bleeding in the course of the treatmentperiod was defined as: clinically overt bleeding associatedwith ≥20 g/l fall in haemoglobin; clinically overt bleedingleading to a transfusion of ≥2 units of packed cells or wholeblood; fatal, retroperitoneal, intracranial, intraocular orintraspinal bleeding and bleeding warranting treatmentcessation or top to reoperation. The definition of majorbleeding was consistent using the Committee for ProprietaryMedicinal Merchandise. It is important to note that theassessment of bleeding also integrated surgical web-site bleeds.
All efficacy and safety outcomes were assessed by anindependent, central adjudication committee.The RE-NOVATE? I trial mapk inhibitor randomized 3,494 patientsundergoing total hip replacement surgery to obtain 28–35 days of either dabigatran etexilate, 220 mgor150 mgonce every day, or subcutaneous enoxaparin,40 mgonce every day. The dose of enoxaparinwas equivalent to that employed routinely within the European Union. The RE-MODEL? trial randomized 2,101 patientsundergoing total knee replacement surgery to obtain 6–10 days of either dabigatran etexilate, 220 mgor150 mgonce every day, or subcutaneous enoxaparin,40 mgonce every day. The third trial, REMOBILIZE?, employed the North American enoxaparin regimenof 30 mg enoxaparintwice every day, compared witheither dabigatran etexilate, 220 mgor 150 mgonce every day for 12–15 days, in individuals undergoing totalknee replacement surgery.
The follow-up period for thesetrials was 12–14 weeks.In both the RE-NOVATE? I and RE-MODEL? trials,dabigatran etexilate demonstrated non-inferiority with theEU dose of enoxaparinfor the primaryefficacy composite outcome of total VTE PARP and all-causemortality. In RE-NOVATE? I, 6.7%of the enoxaparin group, compared with 6.0%ofthe dabigatran etexilate 220-mg group and 8.6%of the dabigatran etexilate 150-mg group, skilled aprimary efficacy outcome event. Though therates of the primary efficacy outcome were higher in theRE-MODEL? trial, as expected for knee replacementsurgery, there were no significant differences in between thethree groups: 37.7%of the enoxaparin groupcompared with 36.4%of the dabigatran etexilate220-mg group and 40.5%of the dabigatranetexilate 150-mg group.
In terms of safety, both the RE-NOVATE? I and REMODEL? trials demonstrated equivalent key bleeding ratesfor the two dabigatran etexilate groups and also the enoxaparingroup. In RE-NOVATE? I, key bleedingoccurred in mapk inhibitor 1.6% of the enoxaparin group, compared with2.0% of the dabigatran etexilate 220-mg group and 1.3% ofthe dabigatran etexilate 150-mg group.Similarly, ALK Inhibitors in RE-MODEL?, key bleeding eventsoccurred in 1.3% of the enoxaparin group, comparedwith 1.5% of the dabigatran etexilate 220-mg group and1.3% of the dabigatran etexilate 150-mg group.Within the RE-MOBILIZE? trial, when dabigatran etexilatewas compared with theNorth American dose of enoxaparin, itwas connected with numerically fewer key bleeding events,while it did not statistically obtain non-inferior efficacy,most likely due to the 50% higher US dose of enoxaparin employed inthe study and also the prolonged dosing regimen.
In summary, the three clinical trials described abovedemonstrated that dabigatran etexilate was as effective asthe EU dose of enoxaparinat preventingVTE and all-cause mortality immediately after total hip or total kneereplacement surgery, but less effective than the NorthAmerican dose of enoxaparinfollowingknee arthroplasty. The safety mapk inhibitor profile of dabigatran etexilatewas comparable with that of enoxaparin immediately after either totalhip or total knee replacement surgery. There were nosignificant differences in between dabigatran etexilate andenoxaparin when it comes to bleeding outcomes, the incidence ofliver enzyme elevations, and also the incidence of acute coronaryevents either on or off therapy, which suggests there isno rebound activation of coagulation with dabigatran etexilate. A fourth, phase III clinical trial of dabigatran etexilatefor the primary prevention of VTE following elective hipreplacement surgery, RE-NOVATE? II, has recentlybeen c

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