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Heart valve drug shows promise in preventing brain and kidney damage

NCT ID NCT05145283

Prevention Sponsor: University Hospital, Basel, Switzerland Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a drug called conestat alfa in 141 people undergoing a minimally invasive heart valve replacement (TAVI) for severe aortic stenosis. The goal was to see if the drug could reduce the risk of small strokes and kidney damage that can happen after the procedure. Participants received either the drug or a placebo, and brain MRIs were used to measure any new damage.

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.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

141 people

The number who actually took part.

Started

Mar 2022

Finished

Jan 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Informed consent as documented by signature * Severe AS and scheduled for transfemoral TAVI Exclusion Criteria: * Contraindications to the class of drugs under study (C1INH), e.g., known hypersensitivity or allergy to class of drugs or the investigational product * History of allergy to rabbits (as rhC1INH is derived from the breast milk of transgenic rabbits) * Women who are pregnant or breast feeding * Hemodynamic instability requiring emergency TAVI * Valve-in-valve procedure * Other access route than transfemoral * Non-cardiac co-morbidity with expected survival \<6 months * Ischemic or hemorrhagic stroke within 30 days before TAVI * Dialysis or estimated glomerular filtration rate (eGFR) \<20 ml/min/1.73m2 * Contraindication for MRI such as a permanent non-MRI compatible pacemaker or severe claustrophobia * Liver cirrhosis (any Child-Pugh score) * Incapacity or inability to provide informed consent * Participation in another study with investigational drug or medical device within the 30 days preceding and during the present study * Previous enrolment into the current study * Any uncontrolled or significant concurrent illness that would put the patient at a greater risk or limit compliance with the study requirements at the discretion of the investigator

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Conditions

The condition(s) this trial relates to.

aortic valve stenosis heart valve disorder ischemia reperfusion injury acute kidney injury prevention target ischemic stroke prevention target

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Acute ischemic stroke Acute renal injury

Contacts and locations

Locations

  • Stadtspital Triemli Zürich, Division of Cardiology

    Zurich, 8063, Switzerland

  • University Hospital Basel, Division of Internal Medicine

    Basel, 4031, Switzerland

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