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Venous ThromboembolismGIHP-NACONCT02185027

Observatory of Invasive Procedures and Bleeding in Patients Treated With New Oral Anticoagulants

An observational study of Venous Thromboembolism and Atrial Fibrillation, run by University Hospital, Grenoble at 41 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The arrival on the market of direct oral factor Xa and factor IIa inhibitors (dabigatran (Pradaxa®), rivaroxaban (Xarelto®), apixaban (Eliquis®) and others soon to come) raises novel questions among clinicians confronted with the emergency management of patients treated with these new drugs. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Venous Thromboembolism, Atrial Fibrillation
What is being tested?
complications and compliance with GIHP recommendations
How many people
1,166 participants
Where
41 sitesin 2 countries
Study dates
Jun 2013to Dec 2016
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Subjects managed in view of surgery or an invasive procedure, emergency or not managed and hospitalized for active bleeding with a long-term therapy (in the indication atrial fibrillation or treatment of pulmonary embolism or deep vein thrombosis) by one antithrombotic agent (Dabigatran, Rivaroxaban, Apixaban)

Who may be able to join

  • Age ≥ 18 years
  • Managed in view of surgery or an invasive procedure, emergency or not
  • Managed and hospitalized for active bleeding
  • Long-term therapy (in the indication atrial fibrillation or treatment of pulmonary embolism or deep vein thrombosis) by at least one antithrombotic agent from the following list: DABIGATRAN ETEXILATE MESYLATE or RIVAROXABAN or APIXABAN

Who cannot join

  • Pregnant women
  • Refusal to participate in the study: listed in the non-inclusion registry
  • Antithrombotics indicated for the prevention of venous thromboembolism

Trial locations and contacts

41 sites in 2 countries.

41 sites in 2 countries

France40 sites
  • CH Agen

    Agen

  • CHU d'Amiens

    Amiens

  • CHR Annecy

    Annecy

  • CHU Besançon

    Besançon

  • CHU Bordeaux

    Bordeaux

  • CH Castres

    Castres

  • CH Chambéry

    Chambéry

  • CHU Clermont-Ferrand

    Clermont-Ferrand

  • CH Alpes leman

    Contamine-sur-Arve

  • CHU Dijon

    Dijon

  • CH Gap

    Gap

  • CHU de Grenoble

    Grenoble, 38043

  • Groupe Hospitalier Mutualiste Grenoble

    Grenoble

  • CHRU Lille

    Lille

  • HCL - Edouard Herriot

    Lyon

  • HCL - Hôpital de la Croix-Rousse

    Lyon

  • HCL - Lyon Sud

    Lyon

  • CHU Marseille

    Marseille

  • CHU Montpellier

    Montpellier

  • Centre Emile Gallé - SINCAL

    Nancy

  • CHU Nancy

    Nancy

  • CHU Nantes

    Nantes

  • CHU Nimes

    Nîmes

  • CH de Niort

    Niort

  • APHP - Antoine Beclere

    Paris

  • APHP - Tenon

    Paris

  • APHP Henri Mondor

    Paris

  • APHP Hôpital Bichat

    Paris

  • APHP Hôpital Cochin

    Paris

  • APHP Site St Antoine

    Paris

  • Aphp-Hegp

    Paris

  • APHP-Hôpital Beaujon

    Paris

  • Centre Hôpital Américain

    Paris

  • CHU Bicêtre

    Paris

  • CHU Rennes

    Rennes

  • CHRU Strasbourg - Hôpital Civil

    Strasbourg

  • Hôpitaux du Léman

    Thonon-les-Bains, haute-Savoie

  • Hôpital d'Instruction des Armées Sainte-Anne

    Toulon

  • CHU Toulouse

    Toulouse

  • CH Voiron

    Voiron

Other trials in France

Belgium1 site
  • CHU Brugmann

    Brussels

Other trials in Belgium

About this study

The arrival on the market of direct oral factor Xa and factor IIa inhibitors (dabigatran (Pradaxa®), rivaroxaban (Xarelto®), apixaban (Eliquis®) and others soon to come) raises novel questions among clinicians confronted with the emergency management of patients treated with these new drugs. It is likely that these new oral anticoagulants (NOACs) will eventually win a significant market share in the indications secondary prevention of venous thromboembolism and prevention of cardioembolic events in patients with nonvalvular atrial fibrillation, due to their net clinical benefit and their practicality of use compared with vitamin K antagonists (VKAs).

However, despite the fact that NOACs reduce the incidence of intracranial bleeding by about half compared with VKAs, the risk remains significant; furthermore, in clinical trials, these drugs had little or no effect on reducing the incidence of major extracranial bleeding. In everyday practice, where the indication could be expanded to unselected populations and due to a potential for misuse, it is likely that the incidence of bleeding complications will be higher than that reported in clinical trials. Indeed, the numerous alerts emanating from regulatory agencies in various countries (US, Australia, etc.) bear witness to this, and should serve as a reminder that these anticoagulants have a real potential for bleeding complications and, in the absence of an antidote, there is no validated management strategy.

Read more

Furthermore, as these drugs can be prescribed for months or years, patients may eventually be exposed to situations at high hemorrhagic risk, such as emergency surgery or invasive procedures, trauma, etc. Analysis of data from the trial : dabigatran versus warfarin in patients with atrial fibrillation (RE-LY) showed that during the two years of follow-up, approximately 25% of the patients underwent an invasive procedure, ranging from pacemaker insertion to major surgery. Thus, a large proportion of patients treated with NOACs are concerned by this issue.

In anticipation of a gradually increasing influx of patients in a critical situation (active bleeding or need to rapidly secure hemostasis before an invasive procedure), it is urgent to define the conduct to adopt based on the experience gained from the earliest cases. This is the objective of the French-speaking GIHP-NACO observatory set up by the GIHP (French Working Group on Perioperative Hemostasis).

For the moment, then, the management recommendations derive from expert opinions based on pharmacokinetic data and on the partial correction of NOAC-induced hypocoagulability by various nonspecific procoagulants (non-activated or activated prothrombin complex concentrates, recombinant factor VIIa). These procoagulants are currently used in an empirical manner to control bleeding, with as many successes as failures reported in the literature, and their benefit-risk ratio in these patients is therefore uncertain.

Read the detailed description

The management of critical situations is difficult for several reasons:

  • First, there is significant intra- and inter-individual variability in the pharmacokinetics of NOACs, which is further heightened in the critical setting by drug interactions with other agents that interfere with P-GLYCOPROTEIN (P-GP) and cytochrome ( cytochrome P4503A4) in patients who are often elderly and multi medicated, and by rapid variations in renal function, which is essential for elimination of NOACs.
  • Second, biological guidance is weak: there is no clearcut therapeutic range nor any validated hemostatic safety cutoff, as is the case with the International Normalized Ratio (INR) for VKAs. Conventional coagulation tests (PT/aPTT) are poorly standardized and difficult to interpret. Assays to measure the serum concentrations of these drugs are not widespread outside of a few teaching hospitals.
  • Third, there is a lack of clinical experience. Analyses of critical situations that occurred during clinical trials were done after the fact and the data collected are heterogeneous and incomplete. Clinical cases reported in the literature are rarely well documented.

The objective of the observatory is to rapidly acquire documented and thorough feedback on clinical experience with these new drugs that will be able to confer a higher level of evidence to the management recommendations for treated patients.

Being tested
complications and compliance with GIHP recommendations
Keywords
Oral anticoagulants, Surgery, Haemorrhage, Emergency
Medical subject headings
Venous Thromboembolism, Atrial Fibrillation, Hemorrhage, Emergencies

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • complications and compliance with GIHP recommendationsOther

    Description of complications, compliance, major bleeding events, treatments, reversal strategies.

Study groups in NCT02185027
Study groupRoleWhat they receive
complications and compliance with GIHP recommendationsDescription at 1 month post-intervention of an potential event
Receives: Other: complications and compliance with GIHP recommendations

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. complications and compliance with GIHP recommendations

    Association between the incidence rate at 1 month post-intervention of an event among the following complications and compliance with GIHP recommendations (appended) evaluated by a composite endpoint Major cardiovascular event ( acute coronary syndrome, cardiogenic shock, stroke or Transient Ischemic Attack (TIA), Central Nervous System (extra-CNS) thromboembolic event).

    Major bleeding event in the group of patients who had an emergency invasive procedure.

    Continued bleeding after management (treatment, reversal) in the group of patients managed for bleeding.

    Compliance with GIHP recommendations (appended) evaluated by a composite endpoint based on:

    • Observance of reversal strategies
    • Observance of the therapeutic window between the last administration and the procedure, in cases where the NOAC was stopped

    Measured: At 1 month

Secondary outcomes (3)
  1. NOAC management

    All NOAC treatments will be recorded

    Measured: during the perioperative period

  2. reversal strategies description

    use or not of reversal strategies will be described

    Measured: during the perioperative period

  3. Coagulation test results

    Coagulation test results will be recorded

    Measured: during the perioperative period

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Jul 2014 (estimated)
  2. Study startJun 2013
  3. Primary completionMar 2016
  4. Study completionDec 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
1,166 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02185027
Sponsor's protocol ID
DCIC 13 18
Acronym
GIHP-NACO
Status last verified
Jan 2018
First submitted
3 Jul 2014
Last updated
6 Oct 2021
Results posted
No
Data monitoring committee
No

Publications

  • Pernod G, Albaladejo P, Godier A, Samama CM, Susen S, Gruel Y, Blais N, Fontana P, Cohen A, Llau JV, Rosencher N, Schved JF, de Maistre E, Samama MM, Mismetti P, Sie P; Working Group on Perioperative Haemostasis. Management of major bleeding complications and emergency surgery in patients on long-term treatment with direct oral anticoagulants, thrombin or factor-Xa inhibitors: proposals of the working group on perioperative haemostasis (GIHP) - March 2013. Arch Cardiovasc Dis. 2013 Jun-Jul;106(6-7):382-93. doi: 10.1016/j.acvd.2013.04.009. Epub 2013 Jun 25.

    PubMed 23810130
  • Marlu R, Hodaj E, Paris A, Albaladejo P, Cracowski JL, Pernod G. Effect of non-specific reversal agents on anticoagulant activity of dabigatran and rivaroxaban: a randomised crossover ex vivo study in healthy volunteers. Thromb Haemost. 2012 Aug;108(2):217-24. doi: 10.1160/TH12-03-0179. Epub 2012 May 25.

    PubMed 22627883
  • Sie P, Samama CM, Godier A, Rosencher N, Steib A, Llau JV, Van der Linden P, Pernod G, Lecompte T, Gouin-Thibault I, Albaladejo P; Working Group on Perioperative Haemostasis; French Study Group on Thrombosis and Haemostasis. Surgery and invasive procedures in patients on long-term treatment with direct oral anticoagulants: thrombin or factor-Xa inhibitors. Recommendations of the Working Group on Perioperative Haemostasis and the French Study Group on Thrombosis and Haemostasis. Arch Cardiovasc Dis. 2011 Dec;104(12):669-76. doi: 10.1016/j.acvd.2011.09.001. Epub 2011 Oct 29.

    PubMed 22152517
  • Healey JS, Eikelboom J, Douketis J, Wallentin L, Oldgren J, Yang S, Themeles E, Heidbuchel H, Avezum A, Reilly P, Connolly SJ, Yusuf S, Ezekowitz M; RE-LY Investigators. Periprocedural bleeding and thromboembolic events with dabigatran compared with warfarin: results from the Randomized Evaluation of Long-Term Anticoagulation Therapy (RE-LY) randomized trial. Circulation. 2012 Jul 17;126(3):343-8. doi: 10.1161/CIRCULATIONAHA.111.090464. Epub 2012 Jun 14.

    PubMed 22700854
  • Heidbuchel H, Verhamme P, Alings M, Antz M, Hacke W, Oldgren J, Sinnaeve P, Camm AJ, Kirchhof P; European Heart Rhythm Association. European Heart Rhythm Association Practical Guide on the use of new oral anticoagulants in patients with non-valvular atrial fibrillation. Europace. 2013 May;15(5):625-51. doi: 10.1093/europace/eut083.

    PubMed 23625942
  • Godon A, Gabin M, Levy JH, Huet O, Chapalain X, David JS, Tacquard C, Sattler L, Minville V, Memier V, Blanie A, Godet T, Leone M, De Maistre E, Gruel Y, Roullet S, Vermorel C, Samama CM, Bosson JL, Albaladejo P; GIHP-NACO Study Group. Management of urgent invasive procedures in patients treated with direct oral anticoagulants: An observational registry analysis. Thromb Res. 2022 Aug;216:106-112. doi: 10.1016/j.thromres.2022.06.005. Epub 2022 Jun 22.

    PubMed 35785621

Questions about this trial

What is this clinical trial studying?

An observational study of Venous Thromboembolism and Atrial Fibrillation, run by University Hospital, Grenoble at 41 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 6 Oct 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 41 sites in France, Belgium. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

complications and compliance with GIHP recommendations (time frame: At 1 month). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02185027, which also lists 6 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Oct 2021.

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