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Recruiting NCT05612022

NCT05612022 Acoustic Analysis of VA Sounds

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Clinical Trial Summary
NCT ID NCT05612022
Status Recruiting
Phase
Sponsor Mario Negri Institute for Pharmacological Research
Condition End Stage Renal Disease
Study Type OBSERVATIONAL
Enrollment 44 participants
Start Date 2023-05-09
Primary Completion 2026-12

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age 90 Years
Study Type OBSERVATIONAL
Interventions
AVF creationAVG creation

Eligibility Fast-Check

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What to Expect as a Participant

This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.

This trial targets 44 participants in total. It began in 2023-05-09 with a primary completion date of 2026-12.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

End-stage renal disease (ESRD) is a growing global health problem, strictly connected with progressive ageing population and longer survival of patients living on renal replacement therapy. The majority of ESRD patients is on hemodialysis (HD) treatment. A successful HD procedure requires a functioning vascular access (VA) to provide safe and long-lasting way to connect patient circulation to the artificial kidney. The current recommendation for VA is the native arteriovenous fistula (AVF), surgically created in the forearm by an anastomosis between a vein and an artery. The AVF, despite being the first-choice treatment, is still affected by high non-maturation and early failure rates, requiring in most of the cases, the creation of a new VA. An arteriovenous graft (AVG) is the second choice for a VA. Surgery is done using an artificial plastic tube that connects an artery to a vein. The AVG matures earlier than AVF (2/3 vs 6 weeks), but it is more prone to infections and has lower survival. It would be important to identify patients at risk of VA failure, but there is currently a lack of adequate strategies for surveillance. A continuous monitoring of the VA function would help in identification of reduced blood flow and VA stenosis, that could be treated by interventional radiologists before AVF or AVG complete closure. Over the years, nurses and nephrologists got used to touch the VA and qualitatively evaluate its vibration, named "thrill", and the sounds emitted by the same using their stethoscope. The purpose of this study is to assess the feasibility of VA sound recording and analysis and provide preliminary evidence of VA sound clinical validity and utility to assess, monitor and predict vascular remodelling occurring in AVFs and AVGs. This is a single center prospective observational study involving the acquisition of VA sounds and Doppler US examinations in consenting patients with ESRD. To reach this goal, two groups of ESRD patients in need of VA surgery to perform HD treatment will be involved: Group 1. Patients with AVF as first line HD access option. Group 2. Patients with AVG as first line HD access option.

Eligibility Criteria

Inclusion Criteria: 1. Provision of informed consent prior to any study specific procedures. 2. Patients in HD treatment that need a new VA or patients that entered the pre-dialysis program because of ESRD. In all these cases the treatment of first choice should be the creation of a distal autogenous AVF, the creation of an AVG or the proximalization of an occluded VA. Exclusion Criteria: 1. Contraindications for the creation of an autogenous AVF, for the AVG creation or the proximalization of a failed VA. 2. Patients who use catheter to perform HD. 3. Patients undergoing peritoneal dialysis. 4. Patients with life expectancy less than 2 years.

Contact & Investigator

Central Contact

Anna Caroli

✉ anna.caroli@marionegri.it

📞 003903545351

Frequently Asked Questions

Who can join the NCT05612022 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, up to 90 Years, studying End Stage Renal Disease. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT05612022 currently recruiting?

Yes, NCT05612022 is actively recruiting participants. Contact the research team at anna.caroli@marionegri.it for enrollment information.

Where is the NCT05612022 trial being conducted?

This trial is being conducted at Bergamo, Italy.

Who is sponsoring the NCT05612022 clinical trial?

NCT05612022 is sponsored by Mario Negri Institute for Pharmacological Research. The trial plans to enroll 44 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: July 2026  ·  Data Methodology