Actively Recruiting

Phase Not Applicable
Age: 22Years - 85Years
All Genders
ID07017933

Groundbreaking Renal Assist Device Intervening to Enhance CardioThoracic Surgery Outcomes

Led by 3ive Labs · Updated on 2026-03-19

124

Participants Needed

7

Research Sites

23 weeks

Total Duration

On this page

Sponsors

3

3ive Labs

Lead Sponsor

F

Fortrea

Collaborating Sponsor

AI-Summary

What this Trial Is About

Patients with renal insufficiency undergoing cardiac surgery with cardiopulmonary bypass (CPB) face a high risk of worsening kidney function after surgery, which can lead to longer stays in intensive care, additional health problems, and increased risk of death within 30 days. Kidney problems are usually identified by changes in blood tests measuring kidney filtration. The JuxtaFlow Renal Assist Device (RAD) is being studied to help maintain or improve kidney filtration during surgery by applying controlled negative pressure to the kidney's collecting system, aiming to support kidney function during the stress of surgery and reduce complications. The study compares two groups: one receiving standard care with a bladder catheter for urine collection, and another group receiving treatment with the JuxtaFlow RAD device. This device uses two ureteral catheters connected to a pump that applies mild negative pressure to each kidney for up to 72 hours, starting during surgery and continuing while the patient is in critical care. Treatment stops once the patient leaves critical care after at least 24 hours, and all patients have a bladder catheter for urine monitoring during this period. Participants will be monitored with blood tests measuring kidney function, including serum creatinine levels and creatinine clearance, during and after surgery for up to 96 hours. Researchers will also track any adverse events related to treatment up to 30 days, as well as kidney injury incidence and length of stay in critical care over about one year. This study aims to understand how the device affects kidney health during and after cardiac surgery and to monitor safety and recovery in detail.

CONDITIONS

Brief Title

Groundbreaking Renal Assist Device Intervening to ENhance cardioThoracic Surgery Outcomes

Who Can Participate

Age: 22Years - 85Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Candidate for elective or urgent on-pump coronary artery bypass grafting (CABG) and/or valvular surgery
  • Male or female aged 22 to 85 years
  • Estimated glomerular filtration rate (eGFR) between 15 and 60 mL/min/1.73m2
  • Signed and dated informed consent
  • Female patients of childbearing potential must have a negative pregnancy test at consent and use approved contraception (condoms) during the study
Not Eligible

You will not qualify if you...

  • Unable to understand study risks or give informed consent
  • Pregnant or breastfeeding
  • Prior cardiac surgery within the last 6 months
  • Hemodynamic instability
  • Immunosuppression
  • Active infections such as HIV, tuberculosis, or hepatitis
  • History of polycystic kidney disease
  • Only one active or poorly functioning kidney
  • Current kidney obstruction or kidney stones
  • Current hydronephrosis
  • Active urinary tract infections
  • Malignancy or cancer surgery within 5 years or ongoing cancer treatment
  • Ongoing sepsis or endocarditis
  • Expected 30-day postoperative mortality over 10%
  • Conditions increasing risk or preventing study compliance, including urinary organ injuries or severe benign prostatic hyperplasia
  • Unexplained gross hematuria
  • Current or planned treatment with another investigational drug or device within 3 months
  • Current unrepaired ureteral avulsion
  • Contraindications for urological interventions or study procedures involving ureteral catheterization or cystoscopy

AI-Screening

AI-Powered Screening

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person) for eligibility assessment and consent

Surgery and Immediate Post-operative Care

Duration - Up to 72 hours

Participants undergo coronary artery bypass grafting (CABG) and/or valvular surgery. Those randomized to the treatment group receive up to 72 hours of controlled negative pressure delivered to each kidney via ureteral catheters. All participants have a standard bladder catheter placed for urine collection during this period.

Peri-operative care in critical care setting with continuous monitoring

Post-operative Follow-up

Duration - Up to 30 days for adverse event monitoring; up to 1 year for critical care length of stay assessment

Participants are monitored for kidney function, treatment-emergent adverse events, and recovery outcomes including serum creatinine and critical care length of stay.

Visits and assessments at multiple timepoints including post-operative days 1 to 14 and up to 1 year

Trial Site Locations

Total: 7 locations

1

Cleveland Clinic Florida

Weston, Florida, United States, 33331

Actively Recruiting

2

University of Michigan

Ann Arbor, Michigan, United States, 48109

Actively Recruiting

3

University of North Carolina

Chapel Hill, North Carolina, United States, 27514

Actively Recruiting

4

University of Cincinnati

Cincinnati, Ohio, United States, 45267

Actively Recruiting

5

American Heart of Poland

Bielsko-Biala, Poland, 43-316

Actively Recruiting

6

Poznan University of Medical Sciences

Poznan, Poland, 60-354

Active, Not Recruiting

7

Medicover Hospital

Warsaw, Poland, 02-972

Actively Recruiting

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Research Team

A

Allison Fenderson, RN, MSHS, CCRP

A

Alencia Washington, PhD

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

PREVENTION

Number of Arms

2

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