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Comparison of the Human Acellular Vessel (HAV) With ePTFE Grafts as Conduits for Hemodialysis

Primary Purpose

Renal Failure, End Stage Renal Disease, Hemodialysis

Status
Active
Phase
Phase 3
Locations
International
Study Type
Interventional
Intervention
Human Acellular Vessel (HAV)
ePTFE graft
Sponsored by
Humacyte, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Renal Failure

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Subjects with ESRD who are not, or who are no longer, candidates for creation of an autologous AV fistula and therefore need placement of an AV graft in the arm (upper- or forearm) to start or maintain hemodialysis therapy.
  • Either on hemodialysis or expected to start hemodialysis within 12 weeks of study conduit implantation.
  • At least 18 years of age at Screening.
  • Suitable anatomy for implantation of straight or looped conduits in either the forearm or upper arm (not crossing the elbow).
  • Hemoglobin ≥8 g/dL and platelet count ≥100,000 cells/mm3 prior to Day 0 (within 35 days).
  • Other hematological and biochemical parameters within a range consistent with ESRD prior to Day 0 (within 35 days).
  • Adequate liver function prior to Day 0 (within 35 days), defined as:

    • ≤2x upper limit of normal (ULN) for serum bilirubin, aspartate transaminase (AST), alanine transaminase (ALT), and alkaline phosphatase
    • ≤1.5 for International Normalized Ratio (INR) or prothrombin time (PT) ≤ 18 seconds unless the subject is taking an anticoagulant at the time
  • Female subjects must be either:

    • Of non-childbearing potential, which is defined as post-menopausal (at least 1 year without menses prior to Screening) or documented surgically sterile or post hysterectomy (at least 1 month prior to Screening)
    • Or, of childbearing potential, in which case:

      • Must have a negative urine pregnancy test at Screening, and
      • Must agree to use at least one form of the following birth control methods for the duration of the study:

        • Established use of oral, injectable or implanted hormonal methods of contraception
        • Placement of an intrauterine device or intrauterine system
        • Barrier methods of contraception: condom or occlusive cap (diaphragm or cervical/vault caps) with spermicidal foam/ gel/ film/ cream/ suppository
  • Subject, or legal representative, able to communicate effectively with investigative staff, competent and willing to give written informed consent, and able to comply with entire study procedures including all scheduled follow-up visits.
  • Life expectancy of at least 1 year.

Exclusion Criteria:

  • History or evidence of severe peripheral vascular disease in the intended arm for implantation.
  • Known or suspected central vein obstruction on the side of planned implantation, unless corrected before study conduit implantation.
  • Treatment with any investigational drug or device within 60 days prior to study entry (Day 0) or ongoing participation in a clinical trial of an investigational product.
  • Cancer that is actively being treated with a cytotoxic agent.
  • Documented hyper-coagulable state.
  • Bleeding diathesis.
  • Active clinically significant autoimmune disease.
  • Anticipated renal transplant within 6 months.
  • Venous outflow from study conduit cannot be placed more centrally than any previous failed access.
  • Active local or systemic infection (white blood cells [WBC] > 15,000 cells/mm3 at Screening). If the infection resolves, the subject must be at least one week post resolution of that infection before implantation.
  • Known serious allergy to planned antiplatelet agent.
  • Pregnant women, or women intending to become pregnant during the course of the trial.
  • Any other condition which in the judgment of the investigator would preclude adequate evaluation of the safety and efficacy of the study conduit.
  • Previous enrollment in this study or any other study with the HAV.
  • Employees of Humacyte and employees or relatives of the investigator.

Sites / Locations

  • Arizona Kidney Disease and Hypertension Center (AKDHC)
  • Carondelet St. Mary's Hospital
  • Ladenheim Dialysis Access Center
  • University of California, Irvine
  • VA Long Beach Healthcare System
  • Sacramento VA Medical Center
  • Balboa Nephrology
  • Tampa General Hospital
  • Southwest Vascular Access Center
  • University of Maryland Shore Medical Center
  • Brigham and Women's Hospital
  • Michigan Vascular Center
  • Greenwood Leflore Hospital
  • Washington University
  • Rutgers University
  • Overlook Medical Center
  • Duke University
  • Kaiser Permanente
  • The Regional Medical Center
  • Texas Vascular Associates / Baylor
  • University of Wisconsin
  • Universitätsklinikmn Erlangen, Gefäßchirurgie - Chirurgisches Zentrum
  • Universitätsklinikum Frankfurt Klinik für Gefäß- und Endovascular-Chirurgie
  • Hillel Jaffe Medical Center
  • The Chaim Sheba Medical Center
  • Rambam Health Care Campus
  • Sharee Zedek Medical Center
  • Assaf Harofeh Medical Center
  • Katedra i Klinika Chirurgii Naczyń i Angiologii Uniwersytetu Medycznego w Lublinie
  • Szpital Kliniczny Przemienienia Panskiego Uniwersytetu Medycznego im. Karola Marcinkowskiego
  • Samodzielny Publiczyn Centralny Szpital Klinziczny
  • Oddzial Chirurgii Naczyniowej Wojewódzki Szpital Specjalistyczny we Wrocławiu
  • Hospital da Prelada
  • Leicester General Hospital
  • Guy´s Hospital, Kings´College London
  • University Hospital Birmingham QE Hospital
  • Queen Elizabeth II Hospital
  • Leeds General Infirmary
  • St. George's Hospital

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

Human Acellular Vessel (HAV)

ePTFE

Arm Description

The HAV is a tissue-engineered vascular conduit (6mm diameter) for hemodialysis access in patients with end-stage renal disease. It will be surgically implanted in the forearm or upper arm on Study Day 0.

The comparator (one of two commercially available 6mm ePTFE grafts) will be surgically implanted in the forearm or upper arm on Study Day 0.

Outcomes

Primary Outcome Measures

Time to loss of Secondary Patency from implantation

Secondary Outcome Measures

Time to loss of Secondary Patency from implantation
Time to loss of Primary Patency from implantation
Access-related infections
Using Dialysis Event Surveillance Manual: CDC; 2013.
Rate of interventions required to achieve/maintain Secondary Patency
Time to loss of Primary Assisted Patency from implantation
Histopathological remodeling of any study conduit
Microscopic examination of explanted conduit for cellular infiltration and extracellular remodeling processes, including neo-synthesis and reorganization of ECM components (descriptive summaries only)
The efficiency of dialysis as assessed by spKt/Vurea (subset of subjects)
Frequency and severity of AEs
True aneurysm formation (conduit lumen diameter >9mm)
Assessed by ultrasound
Pseudoaneurysm formation
Assessed by ultrasound
Study conduit rupture
Assessed by ultrasound
Anastomotic bleeding or rupture
Assessed by ultrasound

Full Information

First Posted
December 29, 2015
Last Updated
October 16, 2023
Sponsor
Humacyte, Inc.
Collaborators
CTI Clinical Trial and Consulting Services, California Institute for Regenerative Medicine (CIRM)
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1. Study Identification

Unique Protocol Identification Number
NCT02644941
Brief Title
Comparison of the Human Acellular Vessel (HAV) With ePTFE Grafts as Conduits for Hemodialysis
Official Title
An Assessment of Humacyte's Human Acellular Vessel in Patients Needing Renal Replacement Therapy: A Comparison With ePTFE Grafts as Conduits for Hemodialysis (HUMANITY)
Study Type
Interventional

2. Study Status

Record Verification Date
October 2023
Overall Recruitment Status
Active, not recruiting
Study Start Date
May 24, 2016 (Actual)
Primary Completion Date
September 2022 (Actual)
Study Completion Date
September 2024 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Humacyte, Inc.
Collaborators
CTI Clinical Trial and Consulting Services, California Institute for Regenerative Medicine (CIRM)

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The main purpose of this study is to compare the Human Acellular Vessel (HAV) with ePTFE grafts when used for hemodialysis access.
Detailed Description
This is a Phase 3, prospective, multicenter, multinational, open-label, randomized, two-arm, comparative study. Subjects who sign informed consent would undergo study-specific screening assessments within 35 days from the day of informed consent. On the day of surgery (Day 0), subjects could still be undergoing screening assessments, such as confirmation of inclusion/exclusion criteria, to determine their eligibility before they are randomized in the study. Eligible study subjects will be randomized to receive either a HAV or one of two commercially available ePTFE grafts and followed to 24 months post-implantation at routine study visits regardless of patency status. After 24 months, subjects with a patent study conduit will be followed (while the study conduit remains patent) for up to 5 years (60 months) post implantation at routine study visits.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Renal Failure, End Stage Renal Disease, Hemodialysis, Vascular Access

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
355 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Human Acellular Vessel (HAV)
Arm Type
Experimental
Arm Description
The HAV is a tissue-engineered vascular conduit (6mm diameter) for hemodialysis access in patients with end-stage renal disease. It will be surgically implanted in the forearm or upper arm on Study Day 0.
Arm Title
ePTFE
Arm Type
Active Comparator
Arm Description
The comparator (one of two commercially available 6mm ePTFE grafts) will be surgically implanted in the forearm or upper arm on Study Day 0.
Intervention Type
Biological
Intervention Name(s)
Human Acellular Vessel (HAV)
Other Intervention Name(s)
(regulated as a biological product)
Intervention Description
Surgical implantation of the HAV and subsequent use of the implanted vascular conduit for hemodialysis vascular access.
Intervention Type
Device
Intervention Name(s)
ePTFE graft
Intervention Description
Surgical implantation of a commercially available ePTFE graft and subsequent use of the implanted vascular conduit for hemodialysis vascular access.
Primary Outcome Measure Information:
Title
Time to loss of Secondary Patency from implantation
Time Frame
18 months post-implantation
Secondary Outcome Measure Information:
Title
Time to loss of Secondary Patency from implantation
Time Frame
12, 24 & 60 months post-implantation
Title
Time to loss of Primary Patency from implantation
Time Frame
12,18, 24, & 60 months post-implantation
Title
Access-related infections
Description
Using Dialysis Event Surveillance Manual: CDC; 2013.
Time Frame
12, 18, 24, & 60 months post-implantation
Title
Rate of interventions required to achieve/maintain Secondary Patency
Time Frame
12, 18, 24, & 60 months post-implantation
Title
Time to loss of Primary Assisted Patency from implantation
Time Frame
12, 18, 24, & 60 months post-implantation
Title
Histopathological remodeling of any study conduit
Description
Microscopic examination of explanted conduit for cellular infiltration and extracellular remodeling processes, including neo-synthesis and reorganization of ECM components (descriptive summaries only)
Time Frame
Up to 60 months post-implantation
Title
The efficiency of dialysis as assessed by spKt/Vurea (subset of subjects)
Time Frame
12, 18 & 24 months post-implantation
Title
Frequency and severity of AEs
Time Frame
12, 18, & 24 months post-implantation
Title
True aneurysm formation (conduit lumen diameter >9mm)
Description
Assessed by ultrasound
Time Frame
12, 18, 24, & 60 months post-implantation
Title
Pseudoaneurysm formation
Description
Assessed by ultrasound
Time Frame
12, 18, 24, & 60 months post-implantation
Title
Study conduit rupture
Description
Assessed by ultrasound
Time Frame
12, 18, 24, & 60 months post-implantation
Title
Anastomotic bleeding or rupture
Description
Assessed by ultrasound
Time Frame
12, 18, 24, & 60 months post-implantation

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Subjects with ESRD who are not, or who are no longer, candidates for creation of an autologous AV fistula and therefore need placement of an AV graft in the arm (upper- or forearm) to start or maintain hemodialysis therapy. Either on hemodialysis or expected to start hemodialysis within 12 weeks of study conduit implantation. At least 18 years of age at Screening. Suitable anatomy for implantation of straight or looped conduits in either the forearm or upper arm (not crossing the elbow). Hemoglobin ≥8 g/dL and platelet count ≥100,000 cells/mm3 prior to Day 0 (within 35 days). Other hematological and biochemical parameters within a range consistent with ESRD prior to Day 0 (within 35 days). Adequate liver function prior to Day 0 (within 35 days), defined as: ≤2x upper limit of normal (ULN) for serum bilirubin, aspartate transaminase (AST), alanine transaminase (ALT), and alkaline phosphatase ≤1.5 for International Normalized Ratio (INR) or prothrombin time (PT) ≤ 18 seconds unless the subject is taking an anticoagulant at the time Female subjects must be either: Of non-childbearing potential, which is defined as post-menopausal (at least 1 year without menses prior to Screening) or documented surgically sterile or post hysterectomy (at least 1 month prior to Screening) Or, of childbearing potential, in which case: Must have a negative urine pregnancy test at Screening, and Must agree to use at least one form of the following birth control methods for the duration of the study: Established use of oral, injectable or implanted hormonal methods of contraception Placement of an intrauterine device or intrauterine system Barrier methods of contraception: condom or occlusive cap (diaphragm or cervical/vault caps) with spermicidal foam/ gel/ film/ cream/ suppository Subject, or legal representative, able to communicate effectively with investigative staff, competent and willing to give written informed consent, and able to comply with entire study procedures including all scheduled follow-up visits. Life expectancy of at least 1 year. Exclusion Criteria: History or evidence of severe peripheral vascular disease in the intended arm for implantation. Known or suspected central vein obstruction on the side of planned implantation, unless corrected before study conduit implantation. Treatment with any investigational drug or device within 60 days prior to study entry (Day 0) or ongoing participation in a clinical trial of an investigational product. Cancer that is actively being treated with a cytotoxic agent. Documented hyper-coagulable state. Bleeding diathesis. Active clinically significant autoimmune disease. Anticipated renal transplant within 6 months. Venous outflow from study conduit cannot be placed more centrally than any previous failed access. Active local or systemic infection (white blood cells [WBC] > 15,000 cells/mm3 at Screening). If the infection resolves, the subject must be at least one week post resolution of that infection before implantation. Known serious allergy to planned antiplatelet agent. Pregnant women, or women intending to become pregnant during the course of the trial. Any other condition which in the judgment of the investigator would preclude adequate evaluation of the safety and efficacy of the study conduit. Previous enrollment in this study or any other study with the HAV. Employees of Humacyte and employees or relatives of the investigator.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Shamik Parikh, MD
Organizational Affiliation
Humacyte, Inc.
Official's Role
Study Director
Facility Information:
Facility Name
Arizona Kidney Disease and Hypertension Center (AKDHC)
City
Phoenix
State/Province
Arizona
ZIP/Postal Code
85012
Country
United States
Facility Name
Carondelet St. Mary's Hospital
City
Tucson
State/Province
Arizona
ZIP/Postal Code
85745
Country
United States
Facility Name
Ladenheim Dialysis Access Center
City
Fresno
State/Province
California
ZIP/Postal Code
93710
Country
United States
Facility Name
University of California, Irvine
City
Irvine
State/Province
California
ZIP/Postal Code
92868
Country
United States
Facility Name
VA Long Beach Healthcare System
City
Long Beach
State/Province
California
ZIP/Postal Code
90822
Country
United States
Facility Name
Sacramento VA Medical Center
City
Mather
State/Province
California
ZIP/Postal Code
95655
Country
United States
Facility Name
Balboa Nephrology
City
San Diego
State/Province
California
ZIP/Postal Code
92123
Country
United States
Facility Name
Tampa General Hospital
City
Tampa
State/Province
Florida
ZIP/Postal Code
33606
Country
United States
Facility Name
Southwest Vascular Access Center
City
Alsip
State/Province
Illinois
ZIP/Postal Code
60803
Country
United States
Facility Name
University of Maryland Shore Medical Center
City
Easton
State/Province
Maryland
ZIP/Postal Code
21601
Country
United States
Facility Name
Brigham and Women's Hospital
City
Boston
State/Province
Massachusetts
ZIP/Postal Code
02115
Country
United States
Facility Name
Michigan Vascular Center
City
Flint
State/Province
Michigan
ZIP/Postal Code
48507
Country
United States
Facility Name
Greenwood Leflore Hospital
City
Greenwood
State/Province
Mississippi
ZIP/Postal Code
38930
Country
United States
Facility Name
Washington University
City
Saint Louis
State/Province
Missouri
ZIP/Postal Code
63110
Country
United States
Facility Name
Rutgers University
City
Newark
State/Province
New Jersey
ZIP/Postal Code
07103
Country
United States
Facility Name
Overlook Medical Center
City
Summit
State/Province
New Jersey
ZIP/Postal Code
07901
Country
United States
Facility Name
Duke University
City
Durham
State/Province
North Carolina
ZIP/Postal Code
27710
Country
United States
Facility Name
Kaiser Permanente
City
Portland
State/Province
Oregon
ZIP/Postal Code
97201
Country
United States
Facility Name
The Regional Medical Center
City
Orangeburg
State/Province
South Carolina
ZIP/Postal Code
29118
Country
United States
Facility Name
Texas Vascular Associates / Baylor
City
Dallas
State/Province
Texas
ZIP/Postal Code
75226
Country
United States
Facility Name
University of Wisconsin
City
Madison
State/Province
Wisconsin
ZIP/Postal Code
53706
Country
United States
Facility Name
Universitätsklinikmn Erlangen, Gefäßchirurgie - Chirurgisches Zentrum
City
Erlangen
State/Province
Bayern
ZIP/Postal Code
91054
Country
Germany
Facility Name
Universitätsklinikum Frankfurt Klinik für Gefäß- und Endovascular-Chirurgie
City
Frankfurt/Main
State/Province
Hessen
ZIP/Postal Code
60590
Country
Germany
Facility Name
Hillel Jaffe Medical Center
City
Hadera
State/Province
Haifa
ZIP/Postal Code
38100
Country
Israel
Facility Name
The Chaim Sheba Medical Center
City
Ramat Gan
State/Province
Tel-Aviv
ZIP/Postal Code
52621
Country
Israel
Facility Name
Rambam Health Care Campus
City
Haifa
ZIP/Postal Code
3109601
Country
Israel
Facility Name
Sharee Zedek Medical Center
City
Jerusalem
ZIP/Postal Code
9103102
Country
Israel
Facility Name
Assaf Harofeh Medical Center
City
Tzrifin
ZIP/Postal Code
70300
Country
Israel
Facility Name
Katedra i Klinika Chirurgii Naczyń i Angiologii Uniwersytetu Medycznego w Lublinie
City
Lublin
State/Province
Lubelskie
ZIP/Postal Code
20-081
Country
Poland
Facility Name
Szpital Kliniczny Przemienienia Panskiego Uniwersytetu Medycznego im. Karola Marcinkowskiego
City
Poznan
ZIP/Postal Code
61-848
Country
Poland
Facility Name
Samodzielny Publiczyn Centralny Szpital Klinziczny
City
Warszawa
ZIP/Postal Code
02-097
Country
Poland
Facility Name
Oddzial Chirurgii Naczyniowej Wojewódzki Szpital Specjalistyczny we Wrocławiu
City
Wroclaw
ZIP/Postal Code
51-124
Country
Poland
Facility Name
Hospital da Prelada
City
Porto
ZIP/Postal Code
4250-449
Country
Portugal
Facility Name
Leicester General Hospital
City
Leicester
State/Province
East Midlands/ Leicestershire
ZIP/Postal Code
LE5 4PW
Country
United Kingdom
Facility Name
Guy´s Hospital, Kings´College London
City
London
State/Province
Greater London
ZIP/Postal Code
SE1 9RT
Country
United Kingdom
Facility Name
University Hospital Birmingham QE Hospital
City
Birmingham
State/Province
West Midlands
ZIP/Postal Code
B15 2TH
Country
United Kingdom
Facility Name
Queen Elizabeth II Hospital
City
Glasgow
ZIP/Postal Code
G51 4TF
Country
United Kingdom
Facility Name
Leeds General Infirmary
City
Leeds
ZIP/Postal Code
LS1 3EX
Country
United Kingdom
Facility Name
St. George's Hospital
City
London
Country
United Kingdom

12. IPD Sharing Statement

Plan to Share IPD
No

Learn more about this trial

Comparison of the Human Acellular Vessel (HAV) With ePTFE Grafts as Conduits for Hemodialysis

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