Effect of the Amplifi™ Vein Dilation System on Outflow Vein Dilation and AV Fistula Maturation (AMPLIFI-1)
Recruiting now · Not applicable
Conditions studied: End Stage Kidney Disease (ESRD)
In brief
The AMPLIFI-1 Study is a prospective, multicenter pivotal clinical trial designed to evaluate the safety and effectiveness of the Amplifi™ Vein Dilation System in patients requiring distal arteriovenous fistula (AVF) creation for hemodialysis. The study has two cohorts: a randomized controlled (RC) cohort of patients with suitable cephalic veins (≥2.5 mm) randomized 2:1 to Amplifi treatment plus AVF creation versus standard AVF creation alone, and a non-randomized small vein cohort (NRC) of patients with borderline veins (1.7 to \<2.5 mm) treated with Amplifi therapy followed by AVF creation.
Key facts
- Study ID
- NCT07211035
- Run by
- Amplifi Vascular, Inc.
- People needed
- 160
- Starts
- 2026-05-12
- Expected to finish
- 2027-12-01
- Last updated by the study team
- 2026-06-23
Who can join
Age: 18 and older. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- Age ≥ 18 years
- Indicated for wrist or distal forearm radiocephalic AVF creation based on Investigator's standard practice
- End-Stage Renal Disease (ESRD) receiving maintenance hemodialysis.
- Baseline cephalic vein diameter between >1.7 mm and <3.2 mm at the proposed Study AVF creation site in the distal forearm, with a continuous distal segment or tributary suitable for Amplifi System Outflow Catheter placement, including:
- A forearm cephalic vein segment of ≥ 14 cm in length that provides an approximately 10 cm cannulation zone, free of detectable occlusions or stenosis, with collaterals.
- Central continuity of the forearm cephalic vein at the elbow demonstrated through one or any combination of the following pathways:
- the upper arm cephalic vein,
- the median cubital vein connecting to the upper arm basilic vein,
- the perforator vein connecting to the deep venous system.
- Upper arm veins must show central continuity with no detectable occlusions.
- Palpable radial artery with a diameter of ≥ 2.0 mm at the site of proposed AVF creation without significant stenosis along the course
- Positive Allen's Test
- At least one patent internal jugular vein suitable for Amplifi Inflow Catheter insertion
- Subject has voluntarily signed written informed consent
You may not qualify if…
- Known allergy to 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 from uncorrected coagulopathy
- Known thrombophilia, requiring treatment
- Hb <7 gm/dL
- Platelet level < 100,000 /mm3
- Significant radial artery calcification
- Need for continued treatment with anti-platelet agents or other 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
- Known presence or recent history of intracranial or gastrointestinal bleeding or presence of underlying conditions that would predispose to intracranial or internal bleeding. Documented recent central venous or right atrial thrombus
- History of recent ipsilateral central venous occlusion, stenosis > 50%, angioplasty, or stent placement
- Pregnancy, lactation, or plans to become pregnant during the Study
- Expected survival less than 12 months
- Unwillingness or inability to comply with procedures specified in the Protocol, or difficulty or inability to return for follow-up visits as specified by the Protocol
- Participation in any other investigational drug or medical device study that has not completed primary endpoint evaluation or clinically interferes with the endpoints from the Study, or planned future participation in such studies prior to the completion of the Study
Where it is running
- Brigham Women's Hospital — Boston, Massachusetts, United States (enrolling)
- Flow Vascular — Houston, Texas, United States (enrolling)
Full record on ClinicalTrials.gov
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