- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04896476
Prospective Feasibility Study Evaluating EchoMark LP Placement and EchoSure Measurements for Subjects Requiring Arteriovenous Fistulae
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Katy Feeny
- Phone Number: 443-862-2024
- Email: kfeeny@sonavex.com
Study Locations
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Alabama
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Dothan, Alabama, United States, 36301
- Trinity Research Group
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Arizona
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Peoria, Arizona, United States, 85381
- SKI Vascular Center
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Michigan
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Flint, Michigan, United States, 48507
- Michgan Vascular Center
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North Carolina
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Charlotte, North Carolina, United States, 28207
- Surgical Specialist of Charlotte
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Males or non-pregnant, non-breastfeeding females ≥ 18 years of age but < 85 years of age at the time of informed consent
- Subject is able and willing to provide written informed consent prior to receiving any non-standard of care, protocol specific procedures
- Subject is willing and capable of complying with all required follow-up visits
- Subject and/or Care Team agree that the distance and transportation resources from the subject's home to the clinic are reasonable for study participation and compliance
- Subject has an estimated life expectancy > 18 months
- Subject is ambulatory (cane or walker are acceptable)
- Subjects presenting for upper arm autologous arteriovenous fistula creation
- Vein diameter > 2.5 mm at the antecubital fossa via imaging
- Artery diameter > 3 mm via imaging
- Subject is not participating in another investigational clinical trial that has not met its primary endpoint. Participation in a post-market registry is acceptable.
Exclusion Criteria:
- Subjects receiving a forearm fistula.
- Subject has history of Steal Syndrome.
- Subject who is immunocompromised or immunosuppressed.
- Subject has had three previous failed AV fistulae for hemodialysis access
- Subjects expecting to undergo major surgery within 60 days from the EchoMark implantation.
- Known or suspected active infection on the day of the index procedure.
- Subjects who had infection(s) in the 30-day window prior to EchoMark placement to reduce the likelihood of partially treated infections that can seed the device and fistula
- Subjects with diagnosed bleeding disorder, thrombocytopenia (platelet count <50,000), hypercoagulability, and history of recurrent deep vein thrombosis not related to AV access
- Subjects with active malignancy
- Subjects with a history of poor compliance with the dialysis protocol
- Subjects with a known or suspected allergy to any of the device materials
- Subjects with an existing fistula or graft
- Subjects who are pregnant, plan to become pregnant, or are breastfeeding.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: EchoMark
All subjects will undergo a physician exam prior an arteriovenous fistula creation per the institution's standard of care.
After the fistula creation is completed, but prior to closure, the EchoMark will be implanted under the outflow vein.
|
The EchoMark is to be secured a minimum of 3 cm away from the anastomosis.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Primary Safety Endpoint
Time Frame: 30 Days
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Composite of new major device related adverse events (MAEs) at 30 days post EchoMark implantation, as adjudicated by the Clinical Events Committee (CEC) including:
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30 Days
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Primary Feasibility Endpoint
Time Frame: 6 Months
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Rate of Technical Success defined as the successful implantation of the EchoMark implant and the ability to determine blood flow, diameter, and depth measurements using the EchoSure diagnostic ultrasound system.
Technical success will be assessed from baseline to 4 months.
|
6 Months
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Comparison of EchoSure and duplex measurements of flow
Time Frame: 6 Months
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Only duplex images that pass the CoreLab quality control check will be included in the assessment.
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6 Months
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Comparison of EchoSure and duplex measurements of diameter
Time Frame: 6 Months
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Only duplex images that pass the CoreLab quality control check will be included in the assessment.
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6 Months
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Comparison of EchoSure and duplex measurements of depth
Time Frame: 6 Months
|
Only duplex images that pass the CoreLab quality control check will be included in the assessment.
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6 Months
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Time to radiographic maturation
Time Frame: 12 Months
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defined as the number of days from baseline procedure to date of radiographic maturation (date of ultrasound imaging, as adjudicated by the CEC).
Radiographic maturation is defined as a fistula with volume flow of 500mL/min and 5mm diameter.
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12 Months
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Time to clinical maturation
Time Frame: 12 Months
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defined as the number of days from baseline procedure to date of clinical maturation.
Clinical maturation is defined as 75% of dialysis sessions with successful 2 needle cannulation.
Date of clinical maturation is defined as first date of the 4-week window when clinical maturation is achieved.
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12 Months
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Radiographic maturation success rate
Time Frame: 12 Months
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defined as the percentage of subjects that achieve radiographic maturation (as determined by the physician and adjudicated by the CEC) by end of study.
Radiographic maturation is defined as a fistula with 500mL/min and 5mm diameter.
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12 Months
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Clinical maturation success rate
Time Frame: 12 Months
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defined as the percentage of subjects that achieve clinical maturation by end of study.
Date of clinical maturation is defined as first date of the 4-week window when clinical maturation is achieved.
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12 Months
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6-month patency rate
Time Frame: 6 Months
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defined by the status (yes/no) of an arteriovenous dialysis access with detectable blood flow through and beyond the anastomosis shown by either an imaging modality or physical examination (presence of a palpable thrill or audible bruit along some point of the arteriovenous dialysis access beyond the arteriovenous anastomosis).
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6 Months
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12-month patency rate
Time Frame: 12 Months
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defined by the status (yes/no) of an arteriovenous dialysis access with detectable blood flow through and beyond the anastomosis shown by either an imaging modality or physical examination (presence of a palpable thrill or audible bruit along some point of the arteriovenous dialysis access beyond the arteriovenous anastomosis).
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12 Months
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Occurrence of events occurring within 30 days of implantation that require reinterventions (open or endovascular), hospitalizations, or prolongation of existing hospitalization.
Time Frame: 30 Days
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30 Days
|
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Occurrence of reported reduction of blood flow that prevents the ability to cannulate or requires further assessment and/or intervention from baseline procedure to 12 months.
Time Frame: 12 Months
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12 Months
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Occurrence of the reported inability to cannulate fistula beginning once the fistula is deemed radiographically and clinically mature to 12 months.
Time Frame: 12 Months
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12 Months
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Occurrence of the development of steal syndrome from baseline to 12 months.
Time Frame: 12 Months
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12 Months
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Occurrence of bleeding requiring surgical intervention (including PRBC transfusion) from baseline to 12 months.
Time Frame: 12 Months
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12 Months
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Occurrence of infiltration requiring procedural intervention from baseline to 12 months.
Time Frame: 12 Months
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12 Months
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Occurrence of hematoma requiring procedural intervention from baseline to 12 months.
Time Frame: 12 Months
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12 Months
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Occurrence of the inability to use the EchoSure component of the system from baseline to 4 months
Time Frame: 4 Months
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Due to:
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4 Months
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Occurrence of pain related to the study devices from baseline to 12 months
Time Frame: 12 Months
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12 Months
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Occurrence of infection (not limited to infection requiring implant explanation) from baseline to 12 months
Time Frame: 12 Months
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12 Months
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Occurrence of infection confirmed by either implant explanation or purulent fluid on pathologic assessment during incision and drainage beginning at baseline to 12 months
Time Frame: 12 Months
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12 Months
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Composite of new major device related adverse events (MAEs) at 12 months post EchoMark LP implantation, as adjudicated by the Clinical Events Committee (CEC).
Time Frame: 12 Months
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The proportion of subjects with device success and free from device- and/or procedure related SAEs (per CEC adjudication) at 12 months. The summaries for each individual safety data point will also be provided, including:
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12 Months
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Collaborators and Investigators
Sponsor
Collaborators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Cardiovascular Diseases
- Vascular Diseases
- Urologic Diseases
- Congenital Abnormalities
- Pathological Conditions, Anatomical
- Cardiovascular Abnormalities
- Vascular Malformations
- Arteriovenous Malformations
- Vascular Fistula
- Female Urogenital Diseases
- Female Urogenital Diseases and Pregnancy Complications
- Urogenital Diseases
- Male Urogenital Diseases
- Kidney Diseases
- Fistula
- Arteriovenous Fistula
Other Study ID Numbers
- IDE-F1-2021
- R44HL147423 (U.S. NIH Grant/Contract)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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