Clinical trial Recruiting at 1 site Observational Ages 70 and up

Evaluating the VitaFlow™ Transcatheter Aortic Valve System for severe aortic stenosis

Official title: A Prospective, Multi-center, Post-market Registry Study Evaluating Safety and Effectiveness of the Microport™CardioFlow VitaFlow™Transcatheter Aortic Valve System for the Treatment of Severe Aortic Stenosis

Run by Shanghai MicroPort CardioFlow Medtech Co., Ltd. · NCT04414865 · Data updated 2026-11-12

This study is testing a new heart valve system to see if it safely helps people with severe aortic stenosis who can't have traditional surgery.

Quick facts

Study typeObservational
Ages70 Years and up
SexAll
Enrollment100 (estimated)
SponsorShanghai MicroPort CardioFlow Medtech Co., Ltd.
Industry-sponsored
Locations2 sites (Shanghai, Shanghai Municipality and 1 other locations)
StatusRecruiting
StartedApril 26, 2020
Main results expectedDecember 1, 2021
Study endsDecember 30, 2027
Registry record updatedJune 4, 2020
Trial IDNCT04414865 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are patients aged 70 years and older with symptomatic, severe aortic valve stenosis who are deemed unsuitable for surgical aortic valve replacement.

Probably not a fit

Patients with unsuitable aortic root anatomy, vascular diseases preventing device access, or those with ongoing infections will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to assess the safety and effectiveness of the VitaFlow™ Transcatheter Aortic Valve System in treating severe aortic stenosis in real-world settings. It is a prospective, single-arm, multi-center registry that will follow patients before and after the procedure, with evaluations at discharge, 30 days, 1 year, and annually up to 5 years. The study includes patients who are not suitable for surgical aortic valve replacement and focuses on gathering data on the valve's performance and patient outcomes.

Why it matters

Potential benefit: If successful, this study could provide a less invasive treatment option for patients with severe aortic stenosis who are not candidates for traditional surgery.

How similar studies have gone: Other studies have shown success with similar transcatheter valve approaches, indicating a promising avenue for treatment.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age≥70 years;
* Symptomatic , calcified, severe, degenerative, native aortic valve stenosis : peak velocity ≥4.0m/s, or mean transvalvular gradient ≥40mmHg(1 mmHg=0.133kPa), or aortic valve area\<0.8cm² (or EOA index\<0.5cm²/m²);
* The patients considered to be not suitable for surgical aortic valve replacement (SAVR);
* The patient has been informed of the nature of the study, is willing to enroll in the study by signing a patient informed consent and agreeing to the scheduled follow up requirement.

Exclusion Criteria:

* Aortic root anatomy not suitable for the implantation of the transcatheter aortic valve;
* Vascular diseases or anatomical condition preventing the device access;
* Previous implantation of mechanical or bioprosthesis valve in the aortic position;
* Known hypersensitivity or contraindication to all anticoagulation/antiplatelet regimens, to nitinol, contrast media or other relevant elements;
* Ongoing sepsis, including active endocarditis;
* Estimated Life expectancy\< 12 months;
* Participating in another trial and the primary endpoint is not achieved.
* Inability to comply with the clinical investigation follow-up or other requirements.

Where it's running

  • Zhongshan Hospital
    Shanghai, Shanghai Municipality, China
    Recruiting
  • Ruijing Hospital,Jiaotong University School of Medicine
    Shanghai, Shanghai Municipality, China
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.