The SYMPTOMS - SYstematic Elderly Medical Patients Thromboprophylaxis: Efficacy on Symptomatic OutcoMeS - Study

NCT ID: NCT02379806

Last Updated: 2022-07-05

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

Clinical Phase

PHASE3

Total Enrollment

2560 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-09-03

Study Completion Date

2020-12-29

Brief Summary

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Venous thromboembolism (VTE) is a frequent condition, affecting 1.8 per 1,000 people every year. Admission to hospital is one of the main risk factors for VTE, and could account for up to 20% of all VTE, making VTE prevention in admitted patients an appealing option to reduce VTE global burden.

The landmark MEDENOX trial and others demonstrated the efficacy of low molecular weight heparins (LMWH) in reducing a composite outcome of symptomatic and asymptomatic events, the latter accounting for the vast majority of events.

Publication of these trials led to the implementation of thromboprophylaxis policies in hospitals, which acceptance has been variable. More recently, the use of thromboprophylaxis has been challenged after the publication of 1) a negative trial that used 'death from any cause' as main outcome, 2) a systematic review showing the lack of a clear efficacy on the risk of pulmonary embolism or death, 3) negative trials using new oral anticoagulants, 4) the last version of the American College of Chest Physicians Guidelines, focusing on symptomatic events only, downgraded its recommendation for thromboprophylaxis in medical patients to a 1B recommendation, restricting its use to patients 'at increased risk of thrombosis' and recommending against the use of thromboprophylaxis in patients at low risk of thrombosis, patients bleeding or at high risk of bleeding.

However, a limitation of this interpretation of the data is that in most trials, patients with screened asymptomatic events were treated with anticoagulants, preventing the occurrence of symptomatic events during follow-up. Moreover, subgroup analyses showed that elderly patients were at high risk of thrombosis in these trials, and that LMWH could be particularly efficient in this subgroup of patients. Conversely, their risk of bleeding is also higher than in younger patients and the current trials were not powered to detect a difference in the bleeding risk between groups. Finally, the diagnostic and therapeutic management of VTE is more challenging in the elderly. Therefore, we planned a randomized controlled trial on the efficacy of LMWH for the prevention of symptomatic VTE in elderly patients.

Detailed Description

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Conditions

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Venous Thromboembolism

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Active enoxaparin 40 mg

One 0.4 ml prefilled syringe containing 40 mg enoxaparin active substance administered once daily for 10 ± 4 days

Group Type ACTIVE_COMPARATOR

Enoxaparin

Intervention Type DRUG

Placebo of enoxaparin 40 mg

One 0.4 ml placebo syringe of enoxaparin 40 mg administered once daily for 10 ± 4 days

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Interventions

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Enoxaparin

Intervention Type DRUG

Placebo

Intervention Type DRUG

Other Intervention Names

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Lovenox

Eligibility Criteria

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Inclusion Criteria

* Patient aged 70 years or older
* Admitted to hospital for an acute medical illness
* Anticipated duration of hospitalization of at least 4 days
* Life expectancy of at least 3 months

Exclusion Criteria

* Admission for one of the following reasons:

* Planned medical procedure.
* Routine health assessment requiring admission for baseline/trending of health status (e.g., routine colonoscopy).
* Admission encountered for another life circumstance that causes no bearing on health status and requires no medical intervention (e.g., lack of housing, economic inadequacy, care-giver respite, family circumstances, administrative).
* Hypersensitivity to heparin
* History of Heparin Induced Thrombocytopenia
* Active bleeding
* Bacterial endocarditis
* Platelet count of less than 80,000 per cubic millimeter
* Patients who require anticoagulant therapy for any indication, and those who received any type of anticoagulant therapy for \> 48 hours
* Organic lesion prone to bleeding.
* Hemorrhagic events or bleeding tendency due to hemostasis disorders.
* Concomitant use of aspirin (\> 160 mg/day), clopidogrel (\> 75 mg/day), or of combined antiplatelet therapy
* Creatinine clearance \< 15 ml/min
* Unable or unwilling to consent
* Ischemic stroke + hemorrhagic transformation
* Patient requiring admission to Intensive Care Unit
Minimum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Brest

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Centre Hospitalier d'Agen

Agen, , France

Site Status

CHU Angers

Angers, , France

Site Status

CH Angoulême

Angoulême, , France

Site Status

CH d'Arras

Arras, , France

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CH Béthune

Béthune, , France

Site Status

Hôpital Jean Verdier (APHP)

Bondy, , France

Site Status

CHU Bordeaux

Bordeaux, , France

Site Status

HIA Clermont-Tonnerre

Brest, , France

Site Status

CHRU Brest

Brest, , France

Site Status

CH Public du Cotentin

Cherbourg, , France

Site Status

CH Louis Mourier de Colombes

Colombes, , France

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CHU de Dijon

Dijon, , France

Site Status

CHU Grenoble

Grenoble, , France

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CHD Vendée

La Roche-sur-Yon, , France

Site Status

Groupe Hospitalier Le Havre

Le Havre, , France

Site Status

CHU Rouen

Le Petit-Quevilly, , France

Site Status

CHRU de Lille

Lille, , France

Site Status

CHU Limoges

Limoges, , France

Site Status

CHD Vendée - Site de Luçon

Luçon, , France

Site Status

Hôpital Edouard Herriot - CHU Lyon

Lyon, , France

Site Status

CHU Lyon

Lyon, , France

Site Status

Hôpital de la Timone - AP-HM

Marseille, , France

Site Status

Clinique Mutualiste Médico-chirurgical "Beau Soleil"

Montpellier, , France

Site Status

CH des Pays de Morlaix

Morlaix, , France

Site Status

CHU Nancy

Nancy, , France

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CHU de Nantes

Nantes, , France

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Hôpital Cimiez - CHU Nice

Nice, , France

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HEGP - Paris

Paris, , France

Site Status

Hôpital Lariboisiere

Paris, , France

Site Status

Hôpital Saint-Antoine (APHP)

Paris, , France

Site Status

Hôpital Broca- APHP

Paris, , France

Site Status

Hôpita Cochin - APHP

Paris, , France

Site Status

Institut Mutualiste Montsouris

Paris, , France

Site Status

CH Périgueux

Périgueux, , France

Site Status

CHU Poitiers

Poitiers, , France

Site Status

CH de Cornouaille - Quimper

Quimper, , France

Site Status

CHU Rennes

Rennes, , France

Site Status

Hôpital Charles Nicolle- CHU Rouen

Rouen, , France

Site Status

CHU La Réunion - Site Félix Guyon

Saint-Denis, , France

Site Status

CHU de Saint Etienne

Saint-Etienne, , France

Site Status

CHU La Réunion - site du GHSR

Saint-Pierre, , France

Site Status

CHRU Strasbourg- Service HTA et Maladies Vasculaires

Strasbourg, , France

Site Status

CHU Strasbourg - Service de Médecine Interne

Strasbourg, , France

Site Status

CH Intercommunal Toulon La Seyne sur Mer

Toulon, , France

Site Status

HIA Sainte-Anne Toulon

Toulon, , France

Site Status

Hôpitaux Universitaires de Genève

Geneva, , Switzerland

Site Status

Countries

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France Switzerland

References

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Mottier D, Girard P, Couturaud F, Lacut K, Le Moigne E, Paleiron N, Guellec D, Sanchez O, Cogulet V, Laporte S, Marhic G, Mismetti P, Presles E, Robert-Ebadi H, Mahe I, Plaisance L, Reny JL, Darbellay Farhoumand P, Cuvelier C, Le Henaff C, Lambert Y, Danguy des Deserts M, Rousseau Legrand C, Boutreux S, Bleher Y, Decours R, Trinh-Duc A, Armengol G, Benhamou Y, Daumas A, Guyot SL, De Carvalho H, Lamia B, Righini M, Meyer G, Le Gal G. Enoxaparin versus Placebo to Prevent Symptomatic Venous Thromboembolism in Hospitalized Older Adult Medical Patients. NEJM Evid. 2023 Aug;2(8):EVIDoa2200332. doi: 10.1056/EVIDoa2200332. Epub 2023 Jun 27.

Reference Type DERIVED
PMID: 38320142 (View on PubMed)

Other Identifiers

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2014-000311-13

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

29BRC14.0012 SYMPTOMS

Identifier Type: -

Identifier Source: org_study_id

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