Aortic RegurgitationNCT07453849
TAVR for Aortic Regurgitation Under TEE Guidance
A study testing TEE guided TAVR in people with Aortic Regurgitation and Transcatheter Aortic Valve Replacement, run by Chinese Academy of Medical Sciences, Fuwai Hospital at 1 site in China.
Trial summary
Under contemporary practice, transcatheter aortic valve replacement (TAVR) is typically performed with fluoroscopic visualization and repeated injections of iodinated contrast. While effective, this paradigm introduces cumulative radiation exposure to both patients and staff and can be problematic in individuals with… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Aortic Regurgitation, Transcatheter Aortic Valve Replacement
- What is being tested?
- TEE guided TAVR
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteChina
- Study dates
- 1 Mar 2026to 31 Dec 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age ≥18 years.
- Severe native aortic regurgitation (AR) confirmed by echocardiography (per guideline-recommended multiparametric assessment).
- Indication for intervention, defined as symptomatic severe AR (e.g., NYHA class II-IV) or asymptomatic severe AR with evidence of LV decompensation (e.g., reduced LVEF and/or LV dilation per guideline thresholds).
- Deemed appropriate for transfemoral TAVR by a multidisciplinary Heart Team (e.g., elevated/prohibitive surgical risk or other clinical/anatomic factors favoring transcatheter therapy).
Who cannot join
- Active infective endocarditis or ongoing systemic infection/sepsis.
- Aortic pathology requiring open surgery, such as significant ascending aortic aneurysm/root disease above surgical thresholds, acute aortic syndrome, or other conditions where surgery is mandated.
- Annulus/landing-zone dimensions outside device range
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
China1 site
Fuwai Hospital
Beijing, Beijing Municipality, 100037
Jie Dong, 18311384217, jennidong97@icloud.com
About this study
Official title: Radiation- and Contrast-Free TAVR for Aortic Regurgitation Under Transesophageal Echocardiography Guidance
Under contemporary practice, transcatheter aortic valve replacement (TAVR) is typically performed with fluoroscopic visualization and repeated injections of iodinated contrast. While effective, this paradigm introduces cumulative radiation exposure to both patients and staff and can be problematic in individuals with renal dysfunction, prior contrast reactions, or other situations where contrast use is undesirable. Treating native aortic regurgitation (AR) adds another layer of complexity: limited valvular/annular calcification, enlarged annular dimensions, and dynamic root motion may reduce frictional "purchase" and make prosthesis stabilization more demanding, thereby heightening the need for continuous, high-fidelity intraprocedural imaging. Transesophageal echocardiography (TEE), with its close acoustic window to the aortic root, provides detailed real-time information on annular geometry, cusp coaptation, LVOT-aortic root alignment, guidewire trajectory, and implant depth, and it allows immediate confirmation of valve function and rapid recognition of adverse events (e.g., significant paravalvular regurgitation, maldeployment, pericardial effusion, or coronary compromise). Leveraging TEE as the dominant imaging modality therefore represents a pragmatic pathway toward a low-radiation and potentially contrast-sparing-or in selected cases, contrast-free-TAVR workflow. Nevertheless, evidence supporting an "echo-only" TEE-guided approach remains sparse, especially for native AR. In this study, we present a standardized TEE-guided procedural protocol and report feasibility and early clinical outcomes of TEE-only TAVR in patients with aortic regurgitation.
- Being tested
- TEE guided TAVR
- Medical subject headings
- Aortic Valve Insufficiency
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
TEE guided TAVRProcedure or surgery
TEE will be used to assess valve position and function, transvalvular gradients, paravalvular leak, and pericardial effusion, and to direct any adjunctive maneuvers (e.g., repositioning, post-dilation, or second-valve implantation) as clinically indicated.
| Study group | Role | What they receive |
|---|---|---|
| TEE Guided TAVR | Experimental | Not described Receives: Procedure: TEE guided TAVR |
What is being measured
The primary outcome is the main question the study is designed to answer.
30-day Safety
30-day Early Safety (composite, VARC-3): occurrence of any of the following within 30 days: All-cause mortality Disabling stroke Life-threatening or major bleeding Major vascular complication Acute kidney injury stage 2-3 (or new dialysis) Coronary obstruction requiring intervention Valve-related dysfunction or malposition requiring repeat intervention (e.g., second valve, surgical conversion)
Measured: 30-day follow-up post-procedure
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Mar 2026
- Study start1 Mar 2026 (estimated)
- Primary completion31 Dec 2026 (estimated)
- Study completion31 Dec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Aortic RegurgitationStudies of the same condition, open and under way.
- More trials run by Chinese Academy of Medical Sciences, Fuwai HospitalThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 30 participants (estimated)
Sponsor and investigators
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Pan Xiangbin, Chinese Academy of Medical Sciences, Fuwai Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07453849
- Sponsor's protocol ID
- 20260303
- Status last verified
- Mar 2026
- First submitted
- 2 Mar 2026
- Last updated
- 6 Mar 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 6 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Radiation- and Contrast-Free TAVR for Aortic Regurgitation Under Transesophageal Echocardiography Guidance
- ClinicalTrials.gov ID
- NCT07453849
- Acronym / sponsor ID
- 20260303
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 30 participants (estimated)
- Lead sponsor
- Chinese Academy of Medical Sciences, Fuwai HospitalUniversity, hospital or other
- Study start
- 1 Mar 2026 (estimated)
- Primary completion
- 31 Dec 2026 (estimated)
- Study completion
- 31 Dec 2026 (estimated)
- First posted
- 6 Mar 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Under contemporary practice, transcatheter aortic valve replacement (TAVR) is typically performed with fluoroscopic visualization and repeated injections of iodinated contrast. While effective, this paradigm introduces cumulative radiation exposure to both patients and staff and can be problematic in individuals with renal dysfunction, prior contrast reactions, or other situations where contrast use is undesirable. Treating native aortic regurgitation (AR) adds another layer of complexity: limited valvular/annular calcification, enlarged annular dimensions, and dynamic root motion may reduce frictional "purchase" and make prosthesis stabilization more demanding, thereby heightening the need for continuous, high-fidelity intraprocedural imaging. Transesophageal echocardiography (TEE), with its close acoustic window to the aortic root, provides detailed real-time information on annular geometry, cusp coaptation, LVOT-aortic root alignment, guidewire trajectory, and implant depth, and it allows immediate confirmation of valve function and rapid recognition of adverse events (e.g., significant paravalvular regurgitation, maldeployment, pericardial effusion, or coronary compromise). Leveraging TEE as the dominant imaging modality therefore represents a pragmatic pathway toward a low-radiation and potentially contrast-sparing-or in selected cases, contrast-free-TAVR workflow. Nevertheless, evidence supporting an "echo-only" TEE-guided approach remains sparse, especially for native AR. In this study, we present a standardized TEE-guided procedural protocol and report feasibility and early clinical outcomes of TEE-only TAVR in patients with aortic regurgitation.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| TEE Guided TAVR | Experimental | Procedure: TEE guided TAVR |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Age ≥18 years.
- Severe native aortic regurgitation (AR) confirmed by echocardiography (per guideline-recommended multiparametric assessment).
- Indication for intervention, defined as symptomatic severe AR (e.g., NYHA class II-IV) or asymptomatic severe AR with evidence of LV decompensation (e.g., reduced LVEF and/or LV dilation per guideline thresholds).
- Deemed appropriate for transfemoral TAVR by a multidisciplinary Heart Team (e.g., elevated/prohibitive surgical risk or other clinical/anatomic factors favoring transcatheter therapy).
Key exclusion criteria (3 listed)
- Active infective endocarditis or ongoing systemic infection/sepsis.
- Aortic pathology requiring open surgery, such as significant ascending aortic aneurysm/root disease above surgical thresholds, acute aortic syndrome, or other conditions where surgery is mandated.
- Annulus/landing-zone dimensions outside device range
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| TEE guided TAVRTEE will be used to assess valve position and function, transvalvular gradients, paravalvular leak, and pericardial effusion, and to direct any adjunctive maneuvers (e.g., repositioning, post-dilation, or second-valve implantation) as clinically indicated. | Procedure or surgery | TEE Guided TAVR |
Primary outcome
30-day Safety
Time frame: 30-day follow-up post-procedure
30-day Early Safety (composite, VARC-3): occurrence of any of the following within 30 days: All-cause mortality Disabling stroke Life-threatening or major bleeding Major vascular complication Acute kidney injury stage 2-3 (or new dialysis) Coronary obstruction requiring intervention Valve-related dysfunction or malposition requiring repeat intervention (e.g., second valve, surgical conversion)
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Mar 2026.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing TEE guided TAVR in people with Aortic Regurgitation and Transcatheter Aortic Valve Replacement, run by Chinese Academy of Medical Sciences, Fuwai Hospital at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 6 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Xiangbin Pan (+8688396666, panxiangbin@fuwaihospital.org), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
30-day Safety (time frame: 30-day follow-up post-procedure). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Mar 2026.