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Tnkase (Tenecteplase) - Summary

 
 



TNKASE SUMMARY

Tenecteplase is a tissue plasminogen activator (tPA) produced by recombinant DNA technology using an established mammalian cell line (Chinese Hamster Ovary cells).

TNKase is indicated for use in the reduction of mortality associated with acute myocardial infarction (AMI). Treatment should be initiated as soon as possible after the onset of AMI symptoms.
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NEWS HIGHLIGHTS

Published Studies Related to Tnkase (Tenecteplase)

Statistical aspects of the TNK-S2B trial of tenecteplase versus alteplase in acute ischemic stroke: an efficient, dose-adaptive, seamless phase II/III design. [2011.08]
BACKGROUND: TNK-S2B, an innovative, randomized, seamless phase II/III trial of tenecteplase versus rt-PA for acute ischemic stroke, terminated for slow enrollment before regulatory approval of use of phase II patients in phase III. PURPOSE: (1) To review the trial design and comprehensive type I error rate simulations and (2) to discuss issues raised during regulatory review, to facilitate future approval of similar designs... CONCLUSIONS: (1) The design was innovative and efficient. Per protocol, type I error was well controlled for the co-primary phase III hypothesis tests, and experiment-wise. (2a) Time must be allowed for communications with regulatory reviewers from first design stages. (2b) Adequate type I error control must be demonstrated. (2c) Greater clarity is needed on (i) whether this includes demonstration of type I error control if the protocol is violated and (ii) whether simulations of type I error control are acceptable. (2d) Regulatory agency concerns that protocols for futility stopping may not be followed may be allayed by submitting interim analysis results to them as these analyses occur.

Statistical aspects of the TNK-S2B trial of tenecteplase versus alteplase in acute ischemic stroke: an efficient, dose-adaptive, seamless phase II/III design. [2011]
facilitate future approval of similar designs... CONCLUSIONS: (1) The design was innovative and efficient. Per protocol, type I

TROPICS 1: a phase III, randomized, double-blind, placebo-controlled study of tenecteplase for restoration of function in dysfunctional central venous catheters. [2010.12]
PURPOSE: To evaluate the efficacy and safety of the thrombolytic tenecteplase, a fibrin-specific recombinant tissue plasminogen activator, for restoring function to dysfunctional central venous catheters (CVCs)... CONCLUSIONS: Tenecteplase was efficacious for restoration of catheter function in these study patients with dysfunctional CVCs. Copyright (c) 2010 SIR. Published by Elsevier Inc. All rights reserved.

Phase IIB/III trial of tenecteplase in acute ischemic stroke: results of a prematurely terminated randomized clinical trial. [2010.04]
BACKGROUND AND PURPOSE: Intravenous alteplase (rtPA) remains the only approved treatment for acute ischemic stroke, but its use remains limited. In a previous pilot dose-escalation study, intravenous tenecteplase showed promise as a potentially safer alternative. Therefore, a Phase IIB clinical trial was begun to (1) choose a best dose of tenecteplase to carry forward; and (2) to provide evidence for either promise or futility of further testing of tenecteplase versus rtPA. If promise was established, then the trial would continue as a Phase III efficacy trial comparing the selected tenecteplase dose to standard rtPA... CONCLUSION: This prematurely terminated trial has demonstrated the potential efficiency of a novel design in selecting a propitious dose for future study of a new thrombolytic agent for acute stroke. Given the truncation of the trial, no convincing conclusions can be made about the promise of future study of tenecteplase in acute stroke.

A phase III, randomized, double-blind, placebo-controlled study of tenecteplase for improvement of hemodialysis catheter function: TROPICS 3. [2010.04]
BACKGROUND AND OBJECTIVES: Despite widespread use of tunneled hemodialysis (HD) catheters, their utility is limited by the development of thrombotic complications. To address this problem, this study investigated whether the thrombolytic agent tenecteplase can restore blood flow rates (BFRs) in dysfunctional HD catheters... CONCLUSIONS: Tenecteplase improved HD catheter function and had a favorable safety profile compared with placebo.

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Clinical Trials Related to Tnkase (Tenecteplase)

Trial to Compare the Efficacy and Safety of a Single Bolus of TNK-tPA (Tenecteplase, MetalyseŽ) With Accelerated Infusion of rt-PA (Alteplase, ActilyseŽ) in Asian Patients With Acute Myocardial Infarction [Completed]
The objective of this trial was to compare the efficacy and safety of a single bolus of TNK-tPA (tenecteplase, MetalyseŽ) compared with rt-PA (alteplase, ActilyseŽ) in Asian patients.

TNK-tPA Evaluation for Minor Ischemic Stroke With Proven Occlusion [Recruiting]
This trial will enroll patients that have been diagnosed with a transient ischemic attack (TIA) or minor stroke that has occurred within the past 12 hours. Anyone diagnosed with a minor stroke faces the possibility of long-term disability and even death, regardless of treatment. Stroke symptoms such as weakness, difficulty speaking and paralysis may improve or worsen over the hours or days immediately following a stroke. The purpose of this research trial is to study the effects of a clot-dissolving drug, tenecteplase (TNK-tPA), as a treatment for patients who arrive within twelve hours from stroke onset. This study is attempting to see if TNK-tPA given through a vein in the arm (intravenous) to patients is a safe treatment for stroke patients. Neither the safety nor the effectiveness of this treatment has been proven yet.

This trial will be conducted at several site in Canada.

Dr Michael Hill and Dr. Shelagh Coutts are the Principal Investigators of this trial, coordinated at the University of Calgary, Foothills Medical Centre.

Alteplase-Tenecteplase Trial Evaluation for Stroke Thrombolysis- (ATTEST) [Recruiting]

A Safety/Efficacy Study of Intra-coronary Tenecteplase During Balloon Angioplasty to Treat Heart Attacks [Recruiting]
The primary objective of this study is to gather preliminary data regarding the angiographic efficacy of the administration of low-dose adjunctive intracoronary (IC) tenecteplase during balloon angioplasty for heart attacks.

We hypothesize that low-dose IC tenecteplase will enhance the breakdown of blood clots at the site of the culprit lesion leading to reduced damage to the heart muscle.

A Study of Tenecteplase for Restoration of Function in Dysfunctional Central Venous Access Catheters [Recruiting]
This is a Phase III, open-label, single-arm study that will be conducted at approximately 35 centers in the United States and Canada. Approximately 210 adult and pediatric subjects with dysfunctional CVA catheters will be enrolled in the study and treated with one or two doses of tenecteplase.

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Reports of Suspected Tnkase (Tenecteplase) Side Effects

Haemorrhage Intracranial (3)Death (2)Haemorrhage (1)Myocardial Ischaemia (1)Wrong Drug Administered (1)Headache (1)Hemiparesis (1)Wound Secretion (1)Brain Injury (1)Overdose (1)more >>


Page last updated: 2013-02-10

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