At a glance
- What the study gets you
- Access to the study treatment being tested
- Type of study
- Interventional (receives a drug or procedure)
- Time in hospital
- In-person visits at study sites — visit count not specified by the sponsor
- Drug or intervention
- Medtronic Intrepid™ TMVR TF System (device)
- How long the study runs
- Study runs about 190 months (dates as stated)
- About the drug or intervention
- Medtronic Intrepid™ TMVR TF System — device: Patients with moderate-to-severe or severe symptomatic mitral regurgitation, or moderate symptomatic mitral regurgitation combined with mitral stenosis in the presence of MAC will have a Transcatheter Mitral Valve Replacement with the Medtronic Intrepid™ TMVR Transfemoral System
- Patient visit burden
- Not specified by the sponsor
In plain English
This study, called the APOLLO-EU trial, is looking at a treatment called transcatheter mitral valve replacement (TMVR) for people with moderate-to-severe or severe symptomatic mitral regurgitation. Mitral regurgitation means the valve between the two left chambers of the heart does not close properly, letting blood leak backwards. The study is sponsored by Medtronic Cardiovascular.
Who can take part
- Has moderate-to-severe or severe symptomatic mitral regurgitation, or moderate symptomatic mitral regurgitation combined with mitral stenosis and mitral annular calcification (calcium build-up around the valve)
- A heart team experienced in mitral valve treatments agrees the patient is not suitable for approved transcatheter repair or conventional mitral valve surgery
- The patient and their doctor agree the patient will return for all follow-up visits after the procedure
- The patient meets the legal minimum age to give informed consent where they live
- The patient's body structure is suitable for the Medtronic Intrepid TMVR TF System
Who may not be able to
- Life expectancy of less than 24 months
- Currently has a surgically implanted mitral valve
- Has had a previous transcatheter mitral valve procedure with a device still in place
- Has body structure issues that make the procedure unsuitable
- Has severe calcium build-up around the mitral valve (mitral annular calcification) that makes treatment impossible
- Has aortic valve disease needing treatment, or had aortic valve treatment within 90 days of joining the study
- Has a pumping strength of the heart's main chamber (left ventricular ejection fraction, LVEF) below 25% (those between 25% and under 30% will be reviewed by the Screening Committee)
- Has a left ventricle that is too wide (left ventricular end diastolic diameter over 75mm)
- Needs emergency or urgent surgery
- Is unstable blood-flow-wise (haemodynamic instability)
- Has a history of bleeding disorders or blood clotting problems
- Has end-stage kidney disease
- Has liver failure
- Is frail
What taking part involves
- • Not stated — ask the trial team
Time commitment: Not stated in full — patients and their doctors agree to return for all required follow-up visits after the procedure; ask the trial team about how many visits and how long the study lasts.
Plain-English summary (AI-generated) from registry data. Not eligibility advice — only the trial team can confirm whether you can take part. Use the eligibility checker to see how your health profile matches this trial.
- Type of study
- Testing a treatment
- Ages
- 18 Years and over
- Who
- All
- Number of participants
- 400
- Started
- 2023-02-07
- Last checked
- 2026-07
Plain English Summary
What is this study?
- • Testing a new treatment for mitral regurgitation
- • NA - 400 participants
- • Evaluate the safety and efficacy of Medtronic Intrepid™ TMVR TF System in patients with moderate-to-severe or severe symptomatic mitral regurgitation, or moderate symptomatic mitral regurgitation combined with mitral stenosis in the presence of MAC who, by agreement of the local site multidisciplinary heart team experienced in mitral valve therapies, are unsuitable for treatment with approved transcatheter repair or surgical mitral valve intervention
Who can take part?
- • Ages 18 Years and over
- • Diagnosed with mitral regurgitation
Where?
- • Brighton - University Hospitals Sussex NHS Foundation Trust
- • Leeds - Leeds General Infirmary
- • London - Guys & St Thomas NHS Foundation Trust - St Thomas Hospital London
- • London - Royal Brompton Hospital
This is a simplified summary. Always discuss with your doctor before making any decisions.
About This Trial
Evaluate the safety and efficacy of Medtronic Intrepid™ TMVR TF System in patients with moderate-to-severe or severe symptomatic mitral regurgitation, or moderate symptomatic mitral regurgitation combined with mitral stenosis in the presence of MAC who, by agreement of the local site multidisciplinary heart team experienced in mitral valve therapies, are unsuitable for treatment with approved transcatheter repair or surgical mitral valve intervention.
More detail
Prospective, single-arm, multi-center, interventional, pre-market trial
How this trial compares with your answers
Answer 2 more questions to improve match
What we know so far
Still need:
- • Tell us your age for better matching
- • Tell us your sex for better matching
Preliminary match based on your answers. Full eligibility requires on-site assessment including medical history, physical exam, and lab tests. This does not guarantee enrolment.
Eligibility at a Glance
Key info
- Age: 18 Years and over
- Who can join: All genders
Treatment history
Treatments you must have had:
- ✓ post-procedure follow-up visits
What the study is looking for
- ✓Local site multidisciplinary heart team experienced in mitral valve therapies agrees that patient is unsuitable for...
- ✓Subject and the treating physician agree that the subject will return for all required post-procedure follow-up visits
- ✓Subject meets the legal minimum age to provide agreement to take part based on local regulatory requirements
- ✓Subjects anatomically suitable for the Medtronic Intrepid™ TMVR TF System
Who cannot take part
- ✗Estimated life expectancy of less than 24 months
- ✗Currently surgically implanted mitral valve
- ✗Prior transcatheter mitral valve procedure with device currently implanted
- ✗Anatomic contraindications
- ✗Anatomically prohibitive mitral annular calcification (MAC)
See the full criteria
Where Is This Study? (4 UK sites)
University Hospitals Sussex NHS Foundation Trust
Brighton BN2 5BE, United Kingdom
Leeds General Infirmary
Leeds LS1 3EX, United Kingdom
Guys & St Thomas NHS Foundation Trust - St Thomas Hospital London
London SE1 7EH, United Kingdom
Royal Brompton Hospital
London SW3 6NP, United Kingdom
How to Get in Touch
Hanne Gonnissen, PhD
Sponsor contactCONTACT
