Recrutement en cours

WATCH-TMVRWatchman for Patients With Atrial Fibrillation Undergoing Transcatheter Mitral Valve Repair (WATCH-TMVR)

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Ce qui est testé

MitraClip TMVR and Watchman LAAO

Procédure
Qui peut participer

À partir de 18 ans
Voir tous les critères d'éligibilité
Comment se déroule l'étude

Étude thérapeutique

Interventionnel
Date de début : novembre 2020
Voir le détail du protocole

Résumé

Sponsor principalMayo Clinic
Contacts de l'étudeMohamad Adnan (Mohamad) Alkhouli, MD
Dernière mise à jour : 28 janvier 2026
Issu d'une base de données validée par les autorités. Revendiquer en tant que partenaire

Date de début de l'étude : 1 novembre 2020

Date à laquelle le premier participant a commencé l'étude.

Left atrial appendage closure using the Watchman device procedure is approved by the FDA for patients with nonvalvular atrial fibrillation who have an indication for oral anticoagulation to reduce stroke risk but who also have a rational to seek an alternative to long-term anticoagulation (e.g., recurrent bleeding, fall risk). Transcatheter mitral valve repair with the MitraClip device is approved by the FDA for patients with severe degenerative mitral regurgitation who are deemed to be at high-risk for valve surgery and patients with severe secondary MR despite optimal medical therapy. It is also anticipated that the device will soon be approved for patients with severe symptomatic functional mitral regurgitation based on the results of the COAPT trials. Atrial fibrillation is common in patients referred for TMVr. A recent study from the Mayo Clinic documented that up to 50% of patients undergoing TMVr might qualify for LAA based on their risk assessment. Both procedures are performed via a large bore femoral venous access, and utilize transseptal puncture, general anesthesia, and transesophageal echo guidance. Hence, combining the two procedures in one session might provide incremental benefit to those patients by avoiding the risk of repeated large-bore access, transseptal puncture, and general anesthesia. A limited number of case reports illustrated the safety and feasibility of a combined TMVr with LAAO when clinically indicated. Experience with combined TMVr/LAAO in the United States is limited, mostly due to the lack of supportive data and concerns about the incremental cost of the Watchman device that might not be covered by the Center for Medicare Services (CMS) per current guidelines.

Titre officielWatchman for Patients With Atrial Fibrillation Undergoing Transcatheter Mitral Valve Repair (WATCH-TMVR)
NCT04494347
Sponsor principalMayo Clinic
Contacts de l'étudeMohamad Adnan (Mohamad) Alkhouli, MD
Dernière mise à jour : 28 janvier 2026
Issu d'une base de données validée par les autorités. Revendiquer en tant que partenaire

Protocole

Cette section fournit des détails sur le plan de l'étude, y compris la manière dont l'étude est conçue et ce qu'elle évalue.
Détails du design

25 participants à inclure

Nombre total de participants que l'essai clinique vise à recruter.

Traitement

Cette étude teste un ou plusieurs traitements pour évaluer leur efficacité contre une maladie ou un problème de santé spécifique. L'objectif est de voir si un nouveau médicament ou une thérapie fonctionne mieux, ou provoque moins d'effets secondaires que les options existantes.



Éligibilité

Les chercheurs recherchent des patients correspondant à une certaine description appelée critères d'éligibilité : état de santé général ou traitements antérieurs du patient.
Critères

Tout sexe

Le sexe biologique des participants éligibles à s'inscrire.

À partir de 18 ans

Tranche d'âge des participants éligibles à participer.

Volontaires sains non autorisés

Indique si les individus en bonne santé et ne présentant pas la condition étudiée peuvent participer.

Critères

Inclusion Criteria: 1. Men and Women ≥ 18 years of age; 2. The patient has severe symptomatic mitral regurgitation meet criteria for the commercially available MitraClip; 3. The patient also has documented paroxysmal, persistent, or permanent atrial fibrillation AND The patient meets the WATCHMAN labeling guidelines; 4. The patient is eligible for short-term oral anticoagulation therapy with Warfarin or a direct oral anticoagulant; 5. The patient or legal representative is able to understand and willing to provide written informed consent to participate in the trial; 6. The patient is able and willing to return for required follow-up visits. Exclusion Criteria: 1. Mitral valve anatomy not deemed suitable for TMVr; 2. Moderate to severe mitral stenosis (mean gradient \>10 mmHg or MVA \<1.5 cm2); 3. Contraindication for short-term anticoagulation; 4. The patient has intra-cardiac thrombus as visualized by TEE within 1 week prior to Watchman procedure; 5. Prior occlusion of LAA; 6. Implanted mechanical mitral valve; 7. The patient requires long-term warfarin therapy due to: 1. Secondary to conditions such as prior arterial embolism or other indications such as pulmonary embolism or deep vein thrombosis within the previous 6 months. 2. The patient is in a hypercoagulable state. 8. Exclude the patient if per medical record documentation the patient meets any of the following criteria: • Thrombosis occurring at under 40 years age • Idiopathic or recurrent VTE (venous thromboembolism • Thrombosis at an unusual site (cerebral veins, hepatic veins, renal veins, IVC, mesenteric veins) • Family history of VTE or of inherited prothrombotic disorder, recurrence/extension of thrombosis while adequately anti-coagulated; 9. The patient is actively enrolled in another trial of a cardiovascular device or an investigational drug (post-market study and registries are acceptable); 10. The patient is pregnant, or pregnancy is planned during the course of the investigation if patient is of child bearing potential; 11. Any clinically significant medical condition or presence of any laboratory abnormality performed prior to randomization that is considered by the investigator to be clinically important and could interfere with the conduct of the study or not meeting procedure guidelines for WATCHMAN or TMVr with MitraClip; 12. The patient has a life expectancy of less than one year.

Plan de l'étude

Découvrez tous les traitements administrés dans cette étude, leur description détaillée et ce qu'ils impliquent.
Groupes de traitement
Objectifs de l'étude

Un seul groupe d'intervention est désigné dans cette étude

Cette étude ne comporte pas de groupe placebo. 

Groupes de traitement

Groupe I

Expérimental
This is not a randomized study. Patients who are clinically indicated for both procedures will be offered the option to enroll in this registry for a combined procedure. Otherwise, they will undergo TMVr and LAAO in two separate session as clinically indicated (standard of care).

Objectifs de l'étude

Objectifs principaux

Objectifs secondaires

Centres d'étude

Ce sont les hôpitaux, cliniques ou centres de recherche où l'essai est conduit. Vous pouvez trouver le site le plus proche de vous ainsi que son statut.

Cette étude comporte 2 sites

Recrutement en cours

Mayo Clinic

Rochester, United StatesOuvrir Mayo Clinic dans Google Maps
Suspendu

Ottawa Heart Institute

Ottawa, Canada
Recrutement en cours
2 Centres d'Étude