Nerve-stimulating implant tested for easing heart failure symptoms
NCT ID NCT02880618
First seen Sep 11, 2026 · Last updated Sep 11, 2026
Summary
Researchers are tracking 500 people with heart failure and reduced ejection fraction who received the Barostim Neo device, which stimulates nerves near the carotid artery to calm the body's stress response. The registry follows participants for six months to see whether the device improves heart failure classification, walking distance, heart structure, blood biomarkers, and hospitalizations. This is an observational study, so it cannot prove the device works, but it collects real-world data on how people fare after implantation.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Barostim Neo System, an implanted device that stimulates the carotid artery baroreceptors to regulate the nervous system
- What this could lead to
- If the device helps, it could offer a new option for people with heart failure whose symptoms persist despite standard medications.
- What could go wrong
- This is a registry, not a randomized trial, so it cannot prove the device causes any improvement. Implanting a device carries risks of surgery and device-related complications.
Why investors are watching
CVRx sells the BAROSTIM NEO system, a device already approved in Europe for heart failure with reduced ejection fraction. This 500-person registry tracks how the therapy performs in routine commercial use, so the results shape how doctors and buyers view the device. For a micro-cap company with few products, that evidence matters to its core business.
If it works: Positive registry results could support wider adoption of BAROSTIM among heart failure doctors and strengthen the company's position with regulators and payers.
If it fails: Weak or delayed results could slow adoption and leave the company with limited evidence for its main product. Registries of this kind often produce mixed or inconclusive findings.
AI-written from the trial record. Speculative, and not investment advice.
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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About 500 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2016
- Expected to finish
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Jul 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Subjects can be included in the Heart Failure with Reduced Ejection Fraction Registry if they were implanted in the past 30 days and meet the CE-Mark approved indications, and are not contraindicated, for the BAROSTIM NEO System in the treatment of heart failure.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- 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: * Subject has heart failure, defined as New York Heart Association (NYHA) functional Class III and left ventricular ejection fraction (LVEF) ≤ 35% despite being treated with the appropriate heart failure guideline directed therapy * Subject has been implanted with the BAROSTIM NEO System in the past 30 days * Subject has signed an Ethics Committee approved informed consent form Exclusion Criteria: * Bilateral carotid bifurcations located above the level of the mandible * Baroreflex failure or autonomic neuropathy * Uncontrolled, symptomatic cardiac bradyarrhythmias * Carotid atherosclerosis that is determined by ultrasound or angiographic evaluation to be greater than 50% * Ulcerative plaques in the carotid artery as determined by ultrasound or angiographic evaluation
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Get notified about this study
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
5 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Albertinen-Krankenhaus
ACTIVE_NOT_RECRUITINGHamburg, Free and Hanseatic City of Hamburg, 22457, Germany
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Asklepios Klinik Altona
ACTIVE_NOT_RECRUITINGHamburg, 22763, Germany
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Berlin Charité & Deutschen Herzzentrum Berlin
ACTIVE_NOT_RECRUITINGBerlin, 12203, Germany
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Charité Campus Virchow Klinikum
ACTIVE_NOT_RECRUITINGBerlin, 13353, Germany
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Clemenshospital Münster
ACTIVE_NOT_RECRUITINGMünster, 48153, Germany
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Dresden Friedrichstadt
ACTIVE_NOT_RECRUITINGDresden, 01067, Germany
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Fondazione di Ricerca e Cura "Giovanni Paolo II"
ACTIVE_NOT_RECRUITINGCampobasso, 86100, Italy
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Herzentrum Lahr
ACTIVE_NOT_RECRUITINGLahr, 77933, Germany
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Herzzentrum Bad Oyenhausen
RECRUITINGBad Oeynhausen, 32545, Germany
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Herzzentrum Dresden - Interventionelle Kardiologie
ACTIVE_NOT_RECRUITINGDresden, 01307, Germany
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Herzzentrum Dresden, Elektrophysiologie
ACTIVE_NOT_RECRUITINGDresden, 01307, Germany
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Herzzentrum Göttingen
TERMINATEDGöttingen, 37075, Germany
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Immanuel Klinikum Bernau Herzzentrum Brandenburg
ACTIVE_NOT_RECRUITINGBernau, 16321, Germany
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Kardiologie im Klinikum Ingolstadt
ACTIVE_NOT_RECRUITINGIngolstadt, 85049, Germany
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Klinikum Tuttlingen
RECRUITINGTuttlingen, 78532, Germany
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Krankenhaus & MVZ Maria-Hilf Stadtlohn GmbH
ACTIVE_NOT_RECRUITINGStadtlohn, 48970, Germany
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Leipzig St. Georg
RECRUITINGLeipzig, 04129, Germany
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Lippe Klinikum
ACTIVE_NOT_RECRUITINGDetmold, 32756, Germany
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Marienkrankenhaus Siegen
ACTIVE_NOT_RECRUITINGSiegen, 57072, Germany
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Medizinische Hochschule Hannover
RECRUITINGHanover, 30625, Germany
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Medizinisches Versorgungszentrum am Küchwald GmbH
ACTIVE_NOT_RECRUITINGChemnitz, 09113, Germany
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St. Barbara Klinik Hamm
ACTIVE_NOT_RECRUITINGHamm, 59073, Germany
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St. Vincenz-Krankenhaus
ACTIVE_NOT_RECRUITINGPaderborn, 33098, Germany
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Uniklinik Frankfurt
ACTIVE_NOT_RECRUITINGFrankfurt, 60590, Germany
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Universitätsklinik Mainz
ACTIVE_NOT_RECRUITINGMainz, 55131, Germany
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Universitätsklinikum Gießen und Marburg
RECRUITINGGiessen, 35392, Germany
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Universitätsklinikum Köln Herzzentrum
ACTIVE_NOT_RECRUITINGCologne, 50937, Germany
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Universitätsklinikum Leipzig
ACTIVE_NOT_RECRUITINGLeipzig, 04109, Germany
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Universitätsklinikum Regensburg
ACTIVE_NOT_RECRUITINGRegensburg, 93053, Germany
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Universitätsklinikum Schleswig-Holstein Campus Kiel
ACTIVE_NOT_RECRUITINGKiel, 24105, Germany
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Could a handheld ultrasound help clinics spot heart failure sooner?
- Which SGLT2 inhibitor wins? trial pits empagliflozin against dapagliflozin
- Can daily mindful breathing ease heart failure symptoms?
- Can a smartphone app keep heart failure patients out of the hospital?
- Can better training get doctors to talk about what matters most to dying veterans?
- Can AI read heart ultrasounds as well as trained sonographers?