Bleeding Frequency Under Anticoagulant Treatment in Pulmonary Hypertension

NCT ID: NCT02800941

Last Updated: 2024-06-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

203 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-07-05

Study Completion Date

2023-09-05

Brief Summary

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Pulmonary hypertension (PHT) patients often receive long term oral anticoagulants. If the indication is strong, in the secondary chronic thrombo-embolism pulmonary hypertension (CTE-PHT) prevention, the frequent prescription (50 to 90% of patients) contrasts with their low level of proof in the PHT. Last but not least, anticoagulants are known to be the principal cause of iatrogenic hospitalization (major bleeding).

In this study, patients are all followed during one year, to determine the annual frequency of major bleedings (according to the International Society on Thrombosis and Haemostasis (ISTH) international definition). Each event notified is validated by an independent committee for clinical events.

Detailed Description

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Pulmonary hypertension (PHT) patients often receive long term oral anticoagulants. If the indication is strong, in the secondary chronic thrombo-embolism pulmonary hypertension (CTE-PHT) prevention, the frequent prescription (50 to 90% of patients) contrasts with their low level of proof in the PHT. Last but not least, anticoagulants are known to be the principal cause of iatrogenic hospitalization (bleeding).

The only one study scaling the tolerance of anticoagulants for this population found major hemorrhagic levels discording with the clinical practice : really high for connectives associated to pulmonary arterial hypertension (PAHT), and lower in "simple" pulmonary embolism in CTE-PHT. These discoveries could belong to methodological failures of this study: a retrospective, monocentric one, without adjudication of events by an independent committee. Furthermore, there were no information about the existence of a validated indication for anticoagulant treatments.

Patients are all followed during one year, to determine the annual frequency of major bleedings (according to the International Society on Thrombosis and Haemostasis (ISTH) international definition). Each event notified is validated by an independent committee for clinical events.

Conditions

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Pulmonary Arterial Hypertension

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Oral anticoagulant treatment

Patients with pulmonary hypertension are treated with oral anticoagulants according to the usual practice. Patients have follow-up at 3, 6 and 12 months.

Oral anticoagulant treatment

Intervention Type DRUG

The treatment is delivered according to the usual practice.

Interventions

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Oral anticoagulant treatment

The treatment is delivered according to the usual practice.

Intervention Type DRUG

Other Intervention Names

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warfarin (Coumadine®) fluindione (Préviscan®) acenocoumarol (Sintrom®)

Eligibility Criteria

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Inclusion Criteria

* Patient insured or entitled to a social security scheme;
* Patient with confirmed pulmonary hypertension;
* Pulmonary hypertension among the following etiological diagnosis: idiopathic PAH, PAH associated with appetite suppressants, PAH associated with connective, or Chronic Thrombo-embolism Pulmonary Hypertension;
* Patients receiving oral anticoagulants.

Exclusion Criteria

* Impossible following;
* Bleeding at baseline;
* Life expectancy of less than 3 months;
* Pulmonary hypertension in Group 2, Group 3 (in the absence of associated pulmonary embolism) and Group 5 (in the absence of associated pulmonary embolism).
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Centre Hospitalier Universitaire de Saint Etienne

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Laurent Bertoletti, PhD

Role: PRINCIPAL_INVESTIGATOR

CHU de Saint-Etienne

Locations

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CHU Clermont-Ferrand

Clermont-Ferrand, , France

Site Status

CHU de Grenoble

Grenoble, , France

Site Status

Hospices Civils de Lyon

Lyon, , France

Site Status

CHU de Saint-Etienne

Saint-Etienne, , France

Site Status

Countries

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France

Other Identifiers

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2016-001608-41

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

1608037

Identifier Type: -

Identifier Source: org_study_id

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