Experimental heart slicing procedure tested on one patient
NCT ID NCT06269640
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early study tested a new procedure called SESAME that uses a wire threaded through blood vessels to slice away excess heart muscle in people with hypertrophic cardiomyopathy. Only one adult participated before the study was terminated. The goal was to see if the technique could safely reduce blockage of blood flow from the heart.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Septal Scoring Along Midline Endocardium (SESAME) device
- What this could lead to
- If refined, this could offer a less invasive alternative to open-heart surgery for reducing thickened heart muscle and improving blood flow.
- What could go wrong
- This was a very early feasibility study with only 1 participant and was terminated. The procedure carries serious risks like stroke, heart damage, or need for a pacemaker.
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.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
1 person
The number who actually took part.
- Started
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Dec 2024
- Finished
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Dec 2024
- Lead sponsor
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A government research agency
The lead sponsor is the US National Institutes of Health.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
21 to 99 years
- Sex
-
Anyone
- Healthy volunteers
-
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: * Adults age \>= 21 years * Requires debulking of left ventricular septum for hypertrophic cardiomyopathy * Septal diastolic thickness of obstructive hump on CT: * Total \>=16 mm, and * Predicted residual septal thickness \>= 8 mm, and * Predicted laceration depth \>= 6 mm * Severely symptomatic, any of * NYHA Class III or greater * Canadian Angina Class CCS III or greater * Explicitly chooses investigational SESAME over conventional treatment approaches including (1) cardiac myosin inhibitor therapy, if eligible; (2) transcoronary alcohol septal ablation, if eligible; or (3) surgical left ventricular myotomy and/or myectomy, if eligible * Concurrence of the multidisciplinary institutional heart team that the candidate is at high risk for surgical myectomy * Concurrence of the study Central Clinical Eligibility Committee * Willing to return for all scheduled follow-up activities, and eligible or able to undergo required protocol and testing EXCLUSION CRITERIA: * Does not consent to participate, or unable to consent to participate * Requires antegrade SESAME access (because of mechanical aortic valve) * Prior completed transcoronary alcohol septal ablation, or prior surgical myectomy * Pregnant * Hemodynamic instability or emergency procedure * eGFR \< 30 mL/min/1.73m\^2 * Survival despite successful procedure expected \< 12months
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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
-
Emory University Hospital
Atlanta, Georgia, 30322, United States
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