ClinicalTrials.gg
CompletedNCT07058610Amplifi FIHUpdated Jan 2, 2026

Effect of Amplifi Vein Dilation System Treatment on Radiocephalic AVF Maturation-3

An interventional study of Amplifi Vein Dilation System in End-Stage Renal Disease Requiring Haemodialysis, sponsored by Amplifi Vascular, Inc.. Completed at 1 site in Paraguay. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-01-02.

Sponsored by Amplifi Vascular, Inc. · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Jun 2025, 1 year 5 months ago, and no results have been posted to the registry.
  • Registered 4 years 6 months after the study started (first participant enrolled Dec 2020, registered Jul 2025).
Phase
Not applicable
Study type
Interventional
Enrollment
19
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This multi-phase clinical study evaluated the safety and performance of the Amplifi Vein Dilation System (Amplifi System) in subjects requiring arteriovenous fistula (AVF) creation. Conducted at a single site outside the United States, subjects were enrolled across multiple phases. The study focused on device-related safety, procedural success, percent change in vein dilation and AVF maturation outcomes.

Read the detailed description

The Amplifi System was used to promote vein dilation prior to AVF creation. Subjects with ESRD or CKD were treated across three phases of enrollment. The protocol incorporated learnings from earlier phases, including improvements to the device design and procedural protocols. This registration covers all phases of the study (Phase 1-3), with updates planned as new data becomes available.

02

Conditions studied

  • End-Stage Renal Disease Requiring Haemodialysis

Keywords

  • Amplifi
  • Pre-dilation
03

In context

Kidney Failure, Chronic

2,108 studies on the registry are indexed under Kidney Failure, Chronic; 273 are open to participants now.

This study's enrollment of 19 is below the median of 57 across 1,569 interventional studies indexed under Kidney Failure, Chronic.

Browse Kidney Failure, Chronic studies →

Lead sponsor

Amplifi Vascular, Inc. is the lead sponsor of 2 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

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

  • Age ≥ 18 years
  • Indicated for wrist or distal forearm radiocephalic AVF creation based on Investigator's standard practice
  • ESRD currently receiving maintenance hemodialysis via a tunneled, cuffed hemodialysis catheter
  • Baseline wrist or distal forearm cephalic vein diameter of >= 1.7 mm and \< 3.2 mm at the proposed Study AVF creation site, wherein the wrist or forearm cephalic vein at the proposed Study AVF creation site is suitable for Amplifi Distal Outflow Catheter placement and Amplifi System treatment, including:

    • >= 1.7 mm to \< 3.2 mm diameter of the wrist or forearm cephalic vein at the proposed Study AVF creation site;
    • patency and continuity of blood flow from the proposed Study AVF creation site centrally to the upper arm at the elbow through at least one or more of: 1) the upper arm cephalic vein; 2) the median cubital vein to the upper arm basilic system; or 3) the perforator vein to the deep venous system; and
    • no occlusion or stenosis > 50% along the course of the forearm cephalic vein and at least one upper arm venous outflow up to the subclavian vein, as determined by duplex ultrasonography
  • Estimated forearm hemodialysis needle cannulation zone length > 18 cm after creation of the proposed Study AVF
  • At least one patent internal jugular vein suitable for Amplifi Inflow Catheter insertion
  • Subject has voluntarily signed written

Exclusion criteria

Exclusion Criteria:

  • Known allergy or to any Amplifi System components (polyurethane, nitinol), iodinated contrast agents, heparin, or apixaban
  • Known or suspected active infection at the proposed time of Amplifi System placement
  • Known bleeding diathesis, including uncorrected coagulopathy
  • Known thrombophilia requiring treatment
  • \< 10 g/dL
  • count \< 100,000/mm³
  • Requirement for continued treatment with antiplatelet agents or anticoagulants other than apixaban during the Amplifi System treatment period
  • Known history of patent foramen ovale > 2 mm
  • History of recent intracranial or gastrointestinal bleeding
  • Documented recent central venous or right atrial thrombus
  • History of recent ipsilateral central venous occlusion, > 50% stenosis, angioplasty, or stent placement
  • Pregnancy, lactation, or plans to become pregnant during the study
  • Unwillingness or inability to comply with protocol-specified procedures or follow-up visits
  • Participation in another drug or medical device study that has not completed primary endpoint evaluation, that could clinically interfere with study endpoints, or planned participation in such a study prior to completion of this study
Terms in these criteria, in plain language(5)

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 authorised 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.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
19 participants (actual)

Study arms

  • Experimental
    Interventional arm

    Single arm study

    Device: Amplifi Vein Dilation System

Interventions

  • DeviceAmplifi Vein Dilation System

    An investigational extracorporeal blood pump and catheter system designed to promote vein dilation prior to AVF creation.

06

What researchers measure

Primary outcomes

  1. Rate of AVF Maturation at 2 and 6 Weeks

    Time frame: From post AVF creation to end of 6 weeks follow-up.

  2. Percent Change in Cephalic Vein Diameter and Blood Flow

    Time frame: From baseline, during Amplifi System treatment (minimum daily), and prior to Amplifi System removal and AVF creation]

  3. Mean vein diameter of the cephalic vein and blood flow of brachial artery

    Time frame: 2 and 6 weeks post AVF creation

  4. Percentage of subjects who experience an increase in the cephalic vein diameter of ≥2.7 mm from their baseline measurement, or an increase of >1 mm from baseline, following treatment with the Amplifi System.

    Time frame: From baseline measurement to intra-procedural assessment immediately prior to Amplifi System removal and AVF creation (same procedure day)

  5. Rate of Occurrence of Major Device-Related Adverse Events

    Time frame: from device implantation and up to 30 days from device removal and AVF creation

07

Study locations

1 site
  • Sanatorio Italiano
    Asunción, 1849, Paraguay
08

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Undecided

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 2, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07058610
Lead sponsor
Amplifi Vascular, Inc.
Responsible party
Sponsor
First posted
Jul 10, 2025
Start date
Dec 8, 2020
Primary completion
Jun 11, 2025
Completion
Jun 11, 2025
Last update
Jan 2, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2025. You cannot join it, but the record below documents what was studied.

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