ClinicalTrials.gg
RecruitingNCT07566624HYSPANIAUpdated Nov 10, 2026

Spanish Prospective Registry of Hydra THV for Transcatheter Aortic Valve Implantation

An observational study in Severe Aortic Valve Stenosis, Valvular Heart Disease and Aortic Valve Stenosis, sponsored by Fundación EPIC. Recruiting at 8 sites in Spain. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-11-10.

Sponsored by Fundación EPIC · Observational

From the registry’s dates

  • Started Jul 2026; still recruiting 4 months later.
Updated Nov 10, 20266 sites addedGo to Updates ↓

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Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
100
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-15

Among 83 studies in Aortic Valve Stenosis with a site in Spain — 25 open to participants now, 32 under way, 1 of them phase 3. Aortic Valve Stenosis · Spain.

Planned enrollment
41st of 46
100 · median 373
Started
2026
with 3 others
Observational
46 of 83
9 open now
Primary completion
2029-01
later than 28 of 31 live
Registered
81st of 83
by date
Lead sponsor
4 of 83
Fundación EPIC

Among the 83 studies in Aortic Valve Stenosis with a site in Spain, this one is the 41st largest by planned enrollment of the 46 observational ones that give a count, is one of 4 that started in 2026, is one of 46 observational ones, reaches primary completion later than 28 of the 31 other live ones, and was the 81st registered.

Aortic Valve Stenosis

1,026 studies on the registry are indexed under Aortic Valve Stenosis; 294 are open to participants now.

Browse Aortic Valve Stenosis studies →

Open to participants now

25 of the 83 studies in Aortic Valve Stenosis with a site in Spain are open now. Recruiting first, the newest first:

19 more — sign in →

All 25 open studies →

A study can be open while its sites in Spain have not opened yet or have stopped. Only those recruiting at a site in Spain →

Who these studies take

Of the 209 Aortic Valve Stenosis studies recruiting now, 163 (78%) set no upper age limit and 9 (4%) stop at 75 or younger; 25 take children under 18; 14 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Get alerts for this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 83 studies in Aortic Valve Stenosis with a site in Spain, or all of them as a file.
02

Study summary

This study is designed to evaluate the success rate of transfemoral implantation of the Hydra THV biological aortic valve prosthesis in patients with severe symptomatic aortic stenosis. The device is used in accordance with its Instructions for Use as a CE-marked transcatheter heart valve system.

The study will assess procedural success, device performance, and early clinical outcomes following implantation. Patients undergoing transcatheter aortic valve replacement (TAVR) via the transfemoral approach will be followed to evaluate safety and effectiveness outcomes, including short- and mid-term clinical follow-up.

Read the detailed description

This study is designed to evaluate the success rate of transfemoral implantation of the Hydra THV biological aortic valve prosthesis in patients with severe symptomatic aortic stenosis. The device is used in accordance with its Instructions for Use as a CE-marked transcatheter heart valve system.

The study will assess procedural success, device performance, and early clinical outcomes following implantation. Patients undergoing transcatheter aortic valve replacement (TAVR) via the transfemoral approach will be followed to evaluate safety and effectiveness outcomes, including short- and mid-term clinical follow-up.

03

Conditions studied

  • Severe Aortic Valve Stenosis
  • Valvular Heart Disease
  • Aortic Valve Stenosis
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

The Hydra THV valve is approved for the treatment of patients with aortic stenosis. Basically, patients will be eligible for inclusion in this clinical scenario, according to the instructions for use of the device.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Participants who meet ALL of the following conditions will be included:

  • Age ≥ 18 years and;
  • Severe aortic stenosis with indication for aortic valve replacement in which a Hydra THV device is implanted according to the instructions for use; and
  • Signed .

Exclusion criteria

Exclusion Criteria:

Patients who do NOT meet ANY of the following conditions will be included:

  • Express refusal by the participant to participate in the study.
  • Aortic stenosis patients who are not candidates for Hydra THV device implantation or in whom implantation of this device is performed for an indication other than aortic stenosis (especially pure native aortic valve insufficiency). Patients in whom the Hydra THV device is implanted to treat patients with degenerated aortic bioprostheses may be included in the study.
  • Participants in randomised clinical trials who have not reached the research endpoint.
  • Pregnant and/or breastfeeding women.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorized to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
100 participants (estimated)
Target follow-up
12 Months
Patient registry
Yes

Groups and cohorts

  • Hydra Transcatheter Heart Valve (THV)

    Device: Hydra THV

Interventions

  • DeviceHydra THV

    Patients in whom the Hydra THV device is implanted to treat patients with degenerated aortic bioprostheses.

06

What researchers measure

Primary outcomes

  1. Assessment of the success rate of implantation

    Assessment of the success rate of implantation defined by: * Absence of mortality during the procedure or within 24 hours after implantation; and * Correct anatomical positioning of a single valve; and * Absence of mismatch, defined as effective aortic valve area \> 0.85 cm²/m²and; * Mean gradient \< 20 mm Hg or peak velocity \< 3 m/s and; * Absence of moderate or severe aortic regurgitation

    Time frame: 7 days

  2. Success of the procedure

    Composite outcome measures defined as a the absence of intra-procedural mortality or complications during implantation, such as: failure to implant the valve at the annulus level, the need to implant more than one valve (valve-in-valve implantation or implantation of a second valve due to embolisation of the first) or surgical intervention on the aortic valve due to severe aortic insufficiency or complications of the procedure.

    Time frame: 7 days

Secondary outcomes

  1. All cause mortality

    Incidence of all cause mortality

    Time frame: 7 days

  2. All cause mortality

    Incidence of all cause mortality

    Time frame: 30 days

  3. All cause mortality

    Incidence of all cause mortality

    Time frame: 12 months

  4. Cardiovascular mortality

    Incidence of cardiovascular mortality

    Time frame: 7 days

  5. Cardiovascular mortality

    Incidence of cardiovascular mortality

    Time frame: 30 days

  6. Cardiovascular mortality

    Incidence of cardiovascular mortality

    Time frame: 12 months

  7. Stroke

    Incidence of Stroke

    Time frame: 7 days

  8. Stroke

    Incidence of Stroke

    Time frame: 30 days

  9. Stroke

    Incidence of Stroke

    Time frame: 12 months

  10. Stroke with disabling

    Incidence of Stroke with disabling

    Time frame: 7 days

  11. Stroke with disabling

    Incidence of Stroke with disabling

    Time frame: 30 days

  12. Stroke with disabling

    Incidence of Stroke with disabling

    Time frame: 12 months

  13. Stroke with non disabling

    Incidence of Stroke with non disabling

    Time frame: 7 days

  14. Stroke with non disabling

    Incidence of Stroke with non disabling

    Time frame: 30 days

  15. Stroke with non disabling

    Incidence of Stroke with non disabling

    Time frame: 12 months

  16. Acute myocardial infarction

    Incidence of acute myocardial infarction

    Time frame: 7 days

  17. Acute myocardial infarction

    Incidence of acute myocardial infarction

    Time frame: 30 days

  18. Acute myocardial infarction

    Incidence of acute myocardial infarction

    Time frame: 12 months

  19. Coronary occlusion

    Incidence of coronary occlusion

    Time frame: 7days

  20. Coronary occlusion

    Incidence of coronary occlusion

    Time frame: 30 days

  21. Coronary occlusion

    Incidence of coronary occlusion

    Time frame: 12 months

  22. Haemorrhagic complications

    Incidence of haemorrhagic complications

    Time frame: 7 days

  23. Haemorrhagic complications

    Incidence of haemorrhagic complications

    Time frame: 30 days

  24. Haemorrhagic complications

    Incidence of haemorrhagic complications

    Time frame: 12 months

  25. Vascular complications

    Incidence of vascular complications

    Time frame: 7 days

  26. Vascular complications

    Incidence of vascular complications

    Time frame: 30 days

  27. Vascular complications

    Incidence of vascular complications

    Time frame: 12 Months

  28. Acute renal failure

    Incidence of Acute renal failure

    Time frame: 7 days

  29. Acute renal failure

    Incidence of Acute renal failure

    Time frame: 30 days

  30. Acute renal failure

    Incidence of Acute renal failure

    Time frame: 12 months

  31. Conduction disturbances

    Incidence of conduction disturbances

    Time frame: 7 days

  32. Conduction disturbances

    Incidence of conduction disturbances

    Time frame: 30 days

  33. Conduction disturbances

    Incidence of conduction disturbances

    Time frame: 12 months

  34. Arrhythmias

    Incidence of Arrhythmias

    Time frame: 7 days

  35. Arrhythmias

    Incidence of Arrhythmias

    Time frame: 30 days

  36. Arrhythmias

    Incidence of Arrhythmias

    Time frame: 12 months

  37. Implantation of a new permanent pacemaker

    Incidence of Implantation of a new permanent pacemaker

    Time frame: 7 days

  38. Implantation of a new permanent pacemaker

    Incidence of Implantation of a new permanent pacemaker

    Time frame: 30 days

  39. Implantation of a new permanent pacemaker

    Incidence of Implantation of a new permanent pacemaker

    Time frame: 12 months

  40. Combined safety event at 30 days defined by Valve Academic Research Consortium 3 (VARC-3) criteria

    Proportion of patients with freedom from: all-cause mortality, all stroke, VARC type 2-4 bleeding, major vascular, access-related, or cardiac structural complication, acute kidney injury stage 3 or 4, moderate or severe aortic regurgitation, new permanent pacemaker due to procedure related conduction abnormalities, surgery or intervention related to the device.

    Time frame: 30 days

  41. New York Heart Association (NYHA)

    Proportion of patients with modification of NYHA, before the procedure and its modification after the procedure

    Time frame: 7 days

  42. New York Heart Association (NYHA)

    Proportion of patients with modification of NYHA, before the procedure and its modification after the procedure

    Time frame: 30 days

  43. New York Heart Association (NYHA)

    Proportion of patients with modification of NYHA before the procedure and its modification after the procedure

    Time frame: 12 months

  44. Echocardiographic Valve Dysfunction Assessment

    Composite outcome measures defined as a: Effective aortic valve area and Mean transvalvular gradient and Degree of aortic regurgitation and Left ventricular ejection fraction (LVEF) and Pulmonary systolic pressure. Any of the following findings are considered evidence of dysfunction: Mean gradient ≥ 20 mmHg. Effective aortic valve area ≤ 0.9-1.1 cm2/m2. Moderate or severe para-valvular insufficiency

    Time frame: 7 days

  45. Echocardiographic Valve Dysfunction Assessment

    Composite outcome measures defined as a: Effective aortic valve area and Mean transvalvular gradient and Degree of aortic regurgitation and Left ventricular ejection fraction (LVEF) and Pulmonary systolic pressure. Any of the following findings are considered evidence of dysfunction: Mean gradient ≥ 20 mmHg. Effective aortic valve area ≤ 0.9-1.1 cm2/m2. Moderate or severe para-valvular insufficiency

    Time frame: 30 days

  46. Echocardiographic Valve Dysfunction Assessment

    Composite outcome measures defined as a: Effective aortic valve area and Mean transvalvular gradient and Degree of aortic regurgitation and Left ventricular ejection fraction (LVEF) and Pulmonary systolic pressure. Any of the following findings are considered evidence of dysfunction: Mean gradient ≥ 20 mmHg. Effective aortic valve area ≤ 0.9-1.1 cm2/m2. Moderate or severe para-valvular insufficiency

    Time frame: 12 months

07

Study locations

8 of 8 sites recruiting
08

References and documents

Publications

  • Senguttuvan NB, Jose J, Sonawane A, Bansal S, Gupta R, Chandra P. Clinical evaluation of the Hydra self-expanding THV: 30-day results from the GENESIS-II study. AsiaIntervention. 2025 Oct 10;11(3):155-163. doi: 10.4244/AIJ-D-24-00075. eCollection 2025 Oct. PubMed 41049310 ↗
  • Aidietis A, Srimahachota S, Dabrowski M, Bilkis V, Buddhari W, Cheung GSH, Nair RK, Mussayev AA, Mattummal S, Chandra P, Mahajan AU, Chmielak Z, Govindan SC, Jose J, Hiremath MS, Chandra S, Shetty R, Mohanan S, John JF, Mehrotra S, Sondergaard L. 30-Day and 1-Year Outcomes With HYDRA Self-Expanding Transcatheter Aortic Valve: The Hydra CE Study. JACC Cardiovasc Interv. 2022 Jan 10;15(1):93-104. doi: 10.1016/j.jcin.2021.09.004. PubMed 34991828 ↗
  • Sonawane A, Chandra P, Jose J, Bansal S, Gupta R, Sudhir K, Senguttuvan NB. Safety and performance of the Hydra self-expanding THV: 6 months outcomes from the GENESIS-II study. Indian Heart J. 2026 Jul-Aug;78(4):201-205. doi: 10.1016/j.ihj.2026.03.004. Epub 2026 Mar 10. PubMed 41819447 ↗
  • Marin-Cuartas M, Kawczynski MJ, de Waha S, Kiefer P, Falk V, Siepe M, Bowdish ME, Akowuah E, Verbrugghe P, Oosterlinck W, Klautz RJM, Lorusso R, Bidar E, Rahouma MM, Redfors B, Biondi-Zoccai G, Bhatt DL, Gaudino M, Borger MA, Heuts S. Updated 5-year outcomes of transcatheter versus surgical aortic valve replacement in patients with severe aortic stenosis at low- to intermediate-surgical risk. Heart. 2026 Feb 11:heartjnl-2025-327092. doi: 10.1136/heartjnl-2025-327092. Online ahead of print. PubMed 41672766 ↗
  • Praz F, Borger MA, Lanz J, Marin-Cuartas M, Abreu A, Adamo M, Ajmone Marsan N, Barili F, Bonaros N, Cosyns B, De Paulis R, Gamra H, Jahangiri M, Jeppsson A, Klautz RJM, Mores B, Perez-David E, Poss J, Prendergast BD, Rocca B, Rossello X, Suzuki M, Thiele H, Tribouilloy CM, Wojakowski W; ESC/EACTS Scientific Document Group. 2025 ESC/EACTS Guidelines for the management of valvular heart disease. Eur Heart J. 2025 Nov 21;46(44):4635-4736. doi: 10.1093/eurheartj/ehaf194. No abstract available. PubMed 40878295 ↗
09

Timeline

5 registry updates since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jul 2026 (actual). Primary completion is estimated for Jan 2029, 29 months after the start.

Of 206 non-industry observational studies under Aortic Valve Stenosis, half reached primary completion within 45 months of starting (the median), counting those still running; a quarter within 23 and three quarters within 120. This study's planned 29 months is below that.

Counting every sponsor, half of 243 studies reached it within 44 months; a quarter within 23 and three quarters within 86.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 27, 2026
First posted
May 5, 2026
StartActual
Jul 7, 2026
Primary completionEst.
Jan 1, 2029
CompletionEst.
Feb 1, 2029
Last update
Nov 10, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Sites
6 sites added
Show 6 added (6 Spain)
  • Hospital General Universitario de Toledo · Toledo, Spain
  • Hospital de la Santa Creu i Sant Pau · Barcelona, Spain
  • Hospital Universitari de Salamanca · Salamanca, Spain
  • Hospital Clínico San Carlos · Aravaca, Spain
  • Hospital Universitario Virgen del Rocio · Seville, Spain
  • Hospital Universitari de Bellvitge · L'Hospitalet de Llobregat, Spain
across 5 updates, Sep 30, 2026 – Nov 10, 2026
Show all 5 updates
  1. Nov 10, 2026
    1 site added
    Show site
    • Hospital Universitari de Bellvitge · L'Hospitalet de Llobregat, Spain
    + 1 other change: verification date
  2. Oct 30, 2026
    1 site added
    Show site
    • Hospital Universitario Virgen del Rocio · Seville, Spain
  3. Oct 29, 2026
    1 site added
    Show site
    • Hospital Clínico San Carlos · Aravaca, Spain
  4. Oct 22, 2026
    2 sites added
    Show 2 added (2 Spain)
    • Hospital de la Santa Creu i Sant Pau · Barcelona, Spain
    • Hospital Universitari de Salamanca · Salamanca, Spain
    + 1 other change: verification date
  5. Sep 30, 2026
    1 site added
    Show site
    • Hospital General Universitario de Toledo · Toledo, Spain
    + 2 other changes: verification date and references

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07566624
Lead sponsor
Fundación EPIC
Responsible party
Sponsor
First posted
May 5, 2026
Start date
Jul 7, 2026
Primary completion
Jan 1, 2029 (estimated)
Completion
Feb 1, 2029 (estimated)
Last update
Nov 10, 2026

Study contacts

RAUL MORENO GOMEZ, MD, PhD
Contact
raulmorenog@hotmail.com
0034917277000
FUNDACION EPIC
Contact
iepic@fundacionepic.org
0034987876135

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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