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Dabigatran Etexilate in Patients With Mechanical Heart Valves (RE-ALIGN)

This study has been terminated.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01452347
First Posted: October 14, 2011
Last Update Posted: August 6, 2014
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Boehringer Ingelheim
October 11, 2011
October 14, 2011
May 23, 2014
August 6, 2014
August 6, 2014
October 2011
June 2013   (Final data collection date for primary outcome measure)
  • Comparison of Observed and Predicted Trough Dabigatran Plasma Concentrations at Steady State (C Trough,ss) at Week 1 [ Time Frame: Week 1 ]

    Comparisons between dabigatran trough plasma levels as predicted by simulations to those observed in the study are performed to validate the dosing algorithm for Dabigatran Etexilate (DE) .

    Despite the primary endpoint only being assessed in patients who received dabigatran etexilate, Warfarin was included as a comparator treatment in this study in order to facilitate informal comparisons of outcome events, and to look for efficacy signals in this previously unexplored population.

  • Comparison of Observed and Predicted Trough Dabigatran Plasma Concentrations (C Trough,ss) at Week 2 [ Time Frame: Week 2 ]

    Comparisons between dabigatran trough plasma levels as predicted by simulations to those observed in the study are performed to validate the dosing algorithm for Dabigatran Etexilate (DE).

    Despite the primary endpoint only being assessed in patients who received dabigatran etexilate, Warfarin was included as a comparator treatment in this study in order to facilitate informal comparisons of outcome events, and to look for efficacy signals in this previously unexplored population.

  • Comparison of Observed and Predicted Trough Dabigatran Plasma Concentrations (C Trough,ss) at Week 4 [ Time Frame: Week 4 ]

    Comparisons between dabigatran trough plasma levels as predicted by simulations to those observed in the study are performed to validate the dosing algorithm for Dabigatran Etexilate (DE).

    Despite the primary endpoint only being assessed in patients who received dabigatran etexilate, Warfarin was included as a comparator treatment in this study in order to facilitate informal comparisons of outcome events, and to look for efficacy signals in this previously unexplored population.

  • Comparison of Observed and Predicted Trough Dabigatran Plasma Concentrations (C Trough,ss) at End of Trial (EoT) at Week 12 [ Time Frame: Week 12 ]

    Comparisons between dabigatran trough plasma levels as predicted by simulations to those observed in the study are performed to validate the dosing algorithm for Dabigatran Etexilate (DE).

    (As the trial was stopped prematurely, EOT may not be 12 weeks after randomisation for most of the patients)

    Despite the primary endpoint only being assessed in patients who received dabigatran etexilate, Warfarin was included as a comparator treatment in this study in order to facilitate informal comparisons of outcome events, and to look for efficacy signals in this previously unexplored population.

Not Provided
Complete list of historical versions of study NCT01452347 on ClinicalTrials.gov Archive Site
  • Percentage of Patients With Observed Trough Dabigatran Plasma Concentrations < 50 ng/mL at Week 1 [ Time Frame: Week 1 ]
    Percentage of patients with observed Ctrough,ss value < 50 ng/mL are presented. This outcome measure was only analysed for all patients together and not by dose group.
  • Percentage of Patients With Observed Trough Dabigatran Plasma Concentrations < 50 ng/mL at Week 2 [ Time Frame: Week 2 ]
    Percentage of patients with observed Ctrough,ss value < 50 ng/mL are presented. This outcome measure was only analysed for all patients together and not by dose group.
  • Percentage of Patients With Observed Trough Dabigatran Plasma Concentrations < 50 ng/mL at Week 4 [ Time Frame: Week 4 ]
    Percentage of patients with observed Ctrough,ss value < 50 ng/mL are presented. This outcome measure was only analysed for all patients together and not by dose group.
  • Percentage of Patients With Observed Trough Dabigatran Plasma Concentrations < 50 ng/mL at End of Trial (EoT) Week 12 [ Time Frame: Week 12 ]
    Percentage of patients with observed Ctrough,ss value < 50 ng/mL (As the trial was stopped prematurely, EOT may not be 12 weeks after randomisation for most of the patients) This outcome measure was only analysed for all patients together and not by dose group.
Not Provided
Not Provided
Not Provided
 
Dabigatran Etexilate in Patients With Mechanical Heart Valves
A Randomised, Phase II Study to Evaluate the sAfety and Pharmacokinetics of oraL dabIGatran Etexilate in Patients After Heart Valve replacemeNt
To validate the dosing algorithm for dabigatran etexilate in patients receiving a mechanical heart valve.
Not Provided
Interventional
Phase 2
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Heart Valve Diseases
  • Drug: warfarin 1mg
    comparator warfarin
  • Drug: dabigatran etexilate intermediate dose
    active treatment (medium)
  • Drug: dabigatran etexilate low dose
    active treatment (low)
  • Drug: warfarin 5mg
    comparator warfarin
  • Drug: dabigatran etexilate high dose
    active treatment (high)
  • Drug: warfarin 3mg
    comparator warfarin
  • Experimental: Dabigatran etexilate
    Patient dose dependent on screening CrCl levels and TT
    Interventions:
    • Drug: dabigatran etexilate intermediate dose
    • Drug: dabigatran etexilate low dose
    • Drug: dabigatran etexilate high dose
  • Active Comparator: warfarin
    warfarin doses to maintain INR levels
    Interventions:
    • Drug: warfarin 1mg
    • Drug: warfarin 5mg
    • Drug: warfarin 3mg
Eikelboom JW, Connolly SJ, Brueckmann M, Granger CB, Kappetein AP, Mack MJ, Blatchford J, Devenny K, Friedman J, Guiver K, Harper R, Khder Y, Lobmeyer MT, Maas H, Voigt JU, Simoons ML, Van de Werf F; RE-ALIGN Investigators. Dabigatran versus warfarin in patients with mechanical heart valves. N Engl J Med. 2013 Sep 26;369(13):1206-14. doi: 10.1056/NEJMoa1300615. Epub 2013 Aug 31.

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Terminated
328
June 2013
June 2013   (Final data collection date for primary outcome measure)

Inclusion criteria:

  1. Patients aged 18-75
  2. Patients who have received a bileaflet mechanical heart valve

Exclusion criteria:

  1. Prior valve surgery
  2. Uncontrolled hypertension
  3. severe renal impairment
  4. active liver disease
  5. increased risk of bleeding
Sexes Eligible for Study: All
18 Years to 75 Years   (Adult, Senior)
No
Contact information is only displayed when the study is recruiting subjects
Belgium,   Canada,   Czech Republic,   Denmark,   France,   Germany,   Netherlands,   Norway,   Poland,   Sweden
United States
 
NCT01452347
1160.113
2010-022685-27 ( EudraCT Number: EudraCT )
Not Provided
Not Provided
Not Provided
Boehringer Ingelheim
Boehringer Ingelheim
Not Provided
Study Chair: Boehringer Ingelheim Boehringer Ingelheim
Boehringer Ingelheim
July 2014

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP