One-shot heart fix: two procedures combined in single session for AFib and valve leak
NCT ID NCT04494347
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether it is safe and feasible to perform two heart procedures—MitraClip to repair a leaky mitral valve and Watchman to close off a part of the heart linked to stroke risk—in one session. The trial enrolled 25 adults with both severe mitral regurgitation and atrial fibrillation. Researchers tracked deaths and serious complications like stroke or major bleeding to assess the combined approach.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- MitraClip device and Watchman device
- What this could lead to
- If successful, this combined procedure could simplify treatment for patients with both conditions, reducing the need for separate surgeries.
- What could go wrong
- This was a small, early feasibility study with only 25 participants, so results may not apply broadly. Combining procedures may increase risks like bleeding or stroke.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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25 people
The number who actually took part.
- Started
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Nov 2020
- Finished
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Mar 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients with severe symptomatic mitral regurgitation undergoing clinically indicated TMVr with the FDA approved MitraClip device, who also have an FDA indication for percutaneous left atrial appendage occlusion with the Watchman FLX device (atrial fibrillation + indication for long-term anticoagulation + rational to seek alternative to anticoagulation)
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Mayo Clinic
Rochester, Minnesota, 55905, United States
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Ottawa Heart Institute
Ottawa, Ontario, K1Y 4W7, Canada
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