| E.1 Medical condition or disease under investigation |
| E.1.1 | Medical condition(s) being investigated |
atrial fibrillation venous thrombo-embolism heart valve repair other diseases with an indication for anticoagulation with vitamin K antagonists |
atriumfibrilleren veneuze trombo-embolie hartklepvervanging andere ziekten met een indicatie voor antistolling met vitamine-K-antagonisten |
|
| E.1.1.1 | Medical condition in easily understood language |
| Any disease that warrants treatment with anticoagulation |
| Elke aandoening waarbij behandeling met bloedverdunners nodig is |
|
| E.1.1.2 | Therapeutic area | Diseases [C] - Blood and lymphatic diseases [C15] |
| MedDRA Classification |
| E.1.3 | Condition being studied is a rare disease | No |
| E.2 Objective of the trial |
| E.2.1 | Main objective of the trial |
| The main objective is to collect data on effect size for, and determine the feasibility of, a full scale RCT to assess the effect of dosing per 0.5 mg acenocoumarol on quality of anticoagulation, treatment satisfaction, and medication errors. |
| Het belangrijkste doel is het verkregen van gegevens over effectgrootte voor, en de haalbaarheid van, een RCT om het effect van dosering per halve milligram acenocoumarol op kwaliteit van antistolling, tevredenheid met de behandeling, en medicatiefouten, te vergelijken. |
|
| E.2.2 | Secondary objectives of the trial |
| Not applicable. |
| Niet van toepassing. |
|
| E.2.3 | Trial contains a sub-study | No |
| E.3 | Principal inclusion criteria |
In order to be eligible to participate in this study, a subject must meet all of the following criteria:
- Men or women who use acenocoumarol for any indication, who are managed by Certe Trombosedienst - 80 years of age or older at time of inclusion - Using acenocoumarol with an average daily dose of less than 2 milligrams in the previous three months - Subject provided informed consent |
|
| E.4 | Principal exclusion criteria |
A potential subject who meets any of the following criteria will be excluded from participation in this study:
- Initiated therapy with acenocoumarol in the last three months - Expected termination of VKA within six months - Dosing step lower than or equal to "step 7", i.e. usage of less than 7 milligrams acenocoumarol per 2 weeks - Patients who determine the acenocoumarol dose themselves |
|
| E.5 End points |
| E.5.1 | Primary end point(s) |
The main study endpoint is quality of anticoagulation, assessed using the following parameters:
- Individual time in therapeutic range (iTTR) Calculated using the Rosendaal method - INR variability Calculated using the Variance Growth Rate and the SDTinr |
|
| E.5.1.1 | Timepoint(s) of evaluation of this end point |
| Six months after start of allocated therapy, over the previous six months. |
|
| E.5.2 | Secondary end point(s) |
The secondary study parameters are treatment satisfaction, medication errors and number of INR measurements.
Treatment satisfaction will be assessed using the PACT-Q2 questionnaire.
Medication errors are routinely collected by the Thrombosis Service. These will be analysed on number and category of error.
All dates of INR measurements are routinely collected by the Thrombosis Service, so we can easily calculate the number of INR measurements. |
|
| E.5.2.1 | Timepoint(s) of evaluation of this end point |
| At baseline and six months later |
|
| E.6 and E.7 Scope of the trial |
| E.6 | Scope of the trial |
| E.6.1 | Diagnosis | No |
| E.6.2 | Prophylaxis | No |
| E.6.3 | Therapy | Yes |
| E.6.4 | Safety | Yes |
| E.6.5 | Efficacy | Yes |
| E.6.6 | Pharmacokinetic | No |
| E.6.7 | Pharmacodynamic | No |
| E.6.8 | Bioequivalence | No |
| E.6.9 | Dose response | No |
| E.6.10 | Pharmacogenetic | No |
| E.6.11 | Pharmacogenomic | No |
| E.6.12 | Pharmacoeconomic | No |
| E.6.13 | Others | No |
| E.7 | Trial type and phase |
| E.7.1 | Human pharmacology (Phase I) | No |
| E.7.1.1 | First administration to humans | No |
| E.7.1.2 | Bioequivalence study | No |
| E.7.1.3 | Other | No |
| E.7.1.3.1 | Other trial type description | |
| E.7.2 | Therapeutic exploratory (Phase II) | No |
| E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
| E.7.4 | Therapeutic use (Phase IV) | No |
| E.8 Design of the trial |
| E.8.1 | Controlled | Yes |
| E.8.1.1 | Randomised | Yes |
| E.8.1.2 | Open | Yes |
| E.8.1.3 | Single blind | No |
| E.8.1.4 | Double blind | No |
| E.8.1.5 | Parallel group | No |
| E.8.1.6 | Cross over | No |
| E.8.1.7 | Other | No |
| E.8.2 | Comparator of controlled trial |
| E.8.2.1 | Other medicinal product(s) | Yes |
| E.8.2.2 | Placebo | No |
| E.8.2.3 | Other | No |
| E.8.2.4 | Number of treatment arms in the trial | 2 |
| E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
| E.8.4 | The trial involves multiple sites in the Member State concerned | No |
| E.8.5 | The trial involves multiple Member States | No |
| E.8.6 Trial involving sites outside the EEA |
| E.8.6.1 | Trial being conducted both within and outside the EEA | No |
| E.8.6.2 | Trial being conducted completely outside of the EEA | No |
| E.8.7 | Trial has a data monitoring committee | No |
| E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
|
| E.8.9 Initial estimate of the duration of the trial |
| E.8.9.1 | In the Member State concerned years | 1 |
| E.8.9.1 | In the Member State concerned months | 0 |
| E.8.9.1 | In the Member State concerned days | 0 |