NCT04537325

Brief Summary

Randomized controlled, single-center trial randomizing patients with chronic kidney disease and symptomatic severe aortic valve stenosis undergoing transcatheter aortic valve implantation (TAVI). Patients are randomized in a 1:1 ratio to periprocedural intravenous hydration matched to urine output using the RenalGuard system and to standard hydration. The purpose of the study is to test, wether the controlled intravenous hydration with the RenalGuard system is superior to standard hydration to prevent acute kidney injury after TAVI.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
98

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2017

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 20, 2017

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 16, 2018

Completed
2 years until next milestone

First Submitted

Initial submission to the registry

August 29, 2020

Completed
2 days until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

September 3, 2020

Completed
Last Updated

March 19, 2021

Status Verified

March 1, 2021

Enrollment Period

1.6 years

First QC Date

August 29, 2020

Last Update Submit

March 18, 2021

Conditions

Keywords

Transcatheter aortic valve stenosisChronic kidney diseaseAcute kidney injury

Outcome Measures

Primary Outcomes (1)

  • Acute kidney injury

    Increase of serum-creatinine of 0,3 mg/dl in pre-procedural serum-creatinine within 7 days after Transcatheter aortic valve implantation

    Within 7 days after Transcatheter aortic valve implantation

Study Arms (2)

RenalGuard group

ACTIVE COMPARATOR
Device: RenalGuard system

Control group

NO INTERVENTION

Interventions

Periprocedural intravenous hydration matched to urinary output.

RenalGuard group

Eligibility Criteria

Age18 Years - 99 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Symptomatic severe aortic valve stenosis undergoing transcatheter aortic valve implantation
  • Chronic kidney disease (baseline glomerular filtration rate ≤ 60 ml/min)
  • Written informed consent

You may not qualify if:

  • Hemodynamic instability
  • Dialysis-dependent chronic kidney injury
  • Emergency transcatheter aortic valve stenosis

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Medical Center Hamburg-Eppendorf

Hamburg, 20246, Germany

Location

Related Publications (2)

  • Hashimoto H, Yamada H, Murata M, Watanabe N. Diuretics for preventing and treating acute kidney injury. Cochrane Database Syst Rev. 2025 Jan 29;1(1):CD014937. doi: 10.1002/14651858.CD014937.pub2.

  • Voigtlander-Buschmann L, Schafer S, Schmidt-Lauber C, Weimann J, Shenas M, Giraldo Cortes J, Kuta PM, Zeller T, Twerenbold R, Seiffert M, Schofer N, Schneeberger Y, Schafer A, Schirmer J, Reichenspurner H, Blankenberg S, Conradi L, Schafer U. Effect of periprocedural furosemide-induced diuresis with matched isotonic intravenous hydration in patients with chronic kidney disease undergoing transcatheter aortic valve implantation. Clin Res Cardiol. 2024 Jun;113(6):801-811. doi: 10.1007/s00392-023-02234-z. Epub 2023 Jun 1.

MeSH Terms

Conditions

Acute Kidney InjuryRenal Insufficiency, Chronic

Condition Hierarchy (Ancestors)

Renal InsufficiencyKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Ulrich Schäfer, MD

    Universitätsklinikum Hamburg-Eppendorf

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 29, 2020

First Posted

September 3, 2020

Study Start

January 20, 2017

Primary Completion

August 16, 2018

Study Completion

August 31, 2020

Last Updated

March 19, 2021

Record last verified: 2021-03

Locations