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Safety and Efficacy of a Vascular Prosthesis for Hemodialysis Access in Patients With End-Stage Renal Disease

Primary Purpose

End-stage Renal Disease, Kidney Failure, Chronic

Status
Completed
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
HAVG
Sponsored by
Humacyte, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for End-stage Renal Disease focused on measuring End-stage Renal Disease, Hemodialysis, Chronic Renal Insufficiency, Renal Dialysis, Hemodiafiltration, Blood Vessel Prosthesis, Tissue-Engineered Vascular Graft, Vascular Prosthesis Implantation, Kidney Diseases, Kidney Failure, Chronic, Renal Insufficiency, Urologic Diseases

Eligibility Criteria

18 Years - 80 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Patients 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 upper extremity to start or maintain hemodialysis therapy
  • Age 18 to 80 years old, inclusive
  • Suitable anatomy for implantation of straight forearm grafts or curved upper arm grafts (arterial anastomosis to radial or brachial artery, venous anastomosis to either brachial cephalic or very central basilica vein)
  • Hemoglobin ≥8 g/dL and platelet count ≥100,000 cells/mm3 prior to Day 1
  • Other hematological and biochemical parameters within a range consistent with ESRD and acceptable for the administration of general anesthesia prior to Day 1
  • Adequate liver function, defined as serum bilirubin ≤1.5 mg/dL; GGT, AST, ALT, and alkaline phosphatase ≤2x upper limit of normal or international normalized ratio (INR) ≤1.5 prior to Day 1.
  • Able to communicate meaningfully with investigative staff, competent to give written informed consent, and able to comply with entire study procedures
  • Able and willing to give informed consent
  • Life expectancy of at least 1 year

Exclusion Criteria:

  • History or evidence of severe cardiac disease (NYHA Functional Class III or IV), myocardial infarction within 6 months of study entry (Day 1), ventricular tachyarrhythmias requiring continuing treatment, or unstable angina
  • Uncontrolled or poorly controlled diabetes; hospitalization for poor glucose control within the previous 6 months is an absolute exclusion criterion
  • History or evidence of severe peripheral vascular disease in the upper limbs
  • Known or suspected central vein obstruction on the side of planned graft implantation
  • Stroke within 6 months of study entry (Day 1)
  • Candidate for renal transplantation
  • Treatment with any investigational drug or device within 60 days prior to study entry (Day 1)
  • Treatment with vitamin K-antagonists, factor Xa inhibitors, or direct thrombin inhibitors within the month prior to study entry (Day 1)
  • Female patients who are pregnant, intending to become pregnant, nursing or intending to nurse during the study
  • Female patients of child bearing potential (not surgically sterile or at least 2 years post menopause) who do not use a highly effective method of birth control (failure rate less than 1% per year when used consistently and correctly), eg, implants, injectables, combined oral contraceptives in combination with a barrier method, some intrauterine contraceptive devices, sexual abstinence, or a vasectomized partner
  • History of cancer with active disease or treatment within the previous year
  • Immunodeficiency including AIDS / HIV
  • Documented hypercoagulable state or history of 2 or more DVTs or other spontaneous intravascular thrombotic events (thromboses of previous dialysis accesses do not count)
  • Bleeding diathesis
  • Active clinically significant autoimmune disease
  • History of heparin-induced thrombocytopenia
  • Previous PTFE graft in the operative limb unless the HAVG can be placed more proximally than the previous failed graft
  • More than 1 failed PTFE graft in the operative limb
  • Active local or systemic infection (WBC > 15,000 cells/mm3)
  • Patients receiving a forearm graft with which crosses the elbow
  • Patients receiving an upper arm graft with arterial anastomosis to the axillary artery or venous anastomosis to the axillary vein unless low in the axilla and accessible for ultrasound monitoring and compression
  • Patients receiving a lower extremity AV access
  • Known serious allergy to aspirin
  • Any other condition which in the judgment of the investigator would preclude adequate evaluation of the safety and efficacy of the HAVG
  • Previous enrollment in this study
  • Employees of the sponsor or patients who are employees or relatives of the investigator

Sites / Locations

  • Duke University Medical Center Department of Vascular Surgery
  • The Methodist Hospital
  • Sentara Norfolk General Hospital Vascular & Transplant Specialists

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

HAVG

Arm Description

Surgical placement of HAVG

Outcomes

Primary Outcome Measures

HAVG graft assessment
The incidence of aneurysm formation, anastomotic bleeding or rupture, graft infection and irritation/inflammation/infection at the implantation site will be assessed by Doppler ultrasound and tabulated.
HAVG patency rate
Determine the patency (primary, primary assisted and secondary) rate of the Humacyte HAVG by Doppler ultrasound.
Adverse Events
Frequency and severity of AEs of each patient will be documented.
HAVG graft interventions
Graft interventions of each patient will be documented.

Secondary Outcome Measures

Change from baseline in Panel Reactive Antibody
Assess changes in the Panel Reactive Antibody response over the 6 months after graft implantation.
Development of IgG antibodies
Determine whether IgG antibodies to the extracellular matrix material are formed in response to implantation of the HAVG.
Graft interventions
Determine the rates of interventions needed to maintain / restore patency in the graft.
HAVG patency rates
Patency rates (primary, primary assisted, and secondary)

Full Information

First Posted
April 18, 2013
Last Updated
August 17, 2022
Sponsor
Humacyte, Inc.
Collaborators
FGK Clinical Research GmbH, Aptiv Solutions
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1. Study Identification

Unique Protocol Identification Number
NCT01840956
Brief Title
Safety and Efficacy of a Vascular Prosthesis for Hemodialysis Access in Patients With End-Stage Renal Disease
Official Title
A Phase I Study for the Evaluation of Safety and Efficacy of Humacyte's Human Acellular Vascular Graft for Use as a Vascular Prosthesis for Hemodialysis Access in Patients With End-Stage Renal Disease
Study Type
Interventional

2. Study Status

Record Verification Date
August 2022
Overall Recruitment Status
Completed
Study Start Date
May 23, 2013 (Actual)
Primary Completion Date
April 28, 2016 (Actual)
Study Completion Date
April 28, 2016 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Humacyte, Inc.
Collaborators
FGK Clinical Research GmbH, Aptiv Solutions

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The purpose of this study is to assess the safety and efficacy of a novel, tissue-engineered vascular prosthesis, the Human Acellular Vascular Graft, HAVG. The HAVG is intended as an alternative to synthetic materials and to autologous grafts in the creation of vascular access for dialysis.
Detailed Description
The HAVG is a sterile, non-pyrogenic, acellular tubular graft composed of human collagens and other natural extra-cellular matrix proteins. Upon implantation, it is anticipated (based on pre-clinical studies) that the collagen-based matrix comprising the graft will be infiltrated with host cells and re-modeled by the host. This will result in a vascular structure more similar to the histological composition of the native vascular tissue that may improve graft longevity and be less likely to become infected.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
End-stage Renal Disease, Kidney Failure, Chronic
Keywords
End-stage Renal Disease, Hemodialysis, Chronic Renal Insufficiency, Renal Dialysis, Hemodiafiltration, Blood Vessel Prosthesis, Tissue-Engineered Vascular Graft, Vascular Prosthesis Implantation, Kidney Diseases, Kidney Failure, Chronic, Renal Insufficiency, Urologic Diseases

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
20 (Actual)

8. Arms, Groups, and Interventions

Arm Title
HAVG
Arm Type
Experimental
Arm Description
Surgical placement of HAVG
Intervention Type
Biological
Intervention Name(s)
HAVG
Intervention Description
HAVG is implanted into patients' arm.
Primary Outcome Measure Information:
Title
HAVG graft assessment
Description
The incidence of aneurysm formation, anastomotic bleeding or rupture, graft infection and irritation/inflammation/infection at the implantation site will be assessed by Doppler ultrasound and tabulated.
Time Frame
From baseline to week 26 after HAVG implantation.
Title
HAVG patency rate
Description
Determine the patency (primary, primary assisted and secondary) rate of the Humacyte HAVG by Doppler ultrasound.
Time Frame
at Week 26 after HAVG implantation
Title
Adverse Events
Description
Frequency and severity of AEs of each patient will be documented.
Time Frame
From baseline to week 26 after HAVG implantation.
Title
HAVG graft interventions
Description
Graft interventions of each patient will be documented.
Time Frame
From baseline to week 26 after HAVG implantation.
Secondary Outcome Measure Information:
Title
Change from baseline in Panel Reactive Antibody
Description
Assess changes in the Panel Reactive Antibody response over the 6 months after graft implantation.
Time Frame
From baseline to day 29, weeks 12 and 26 after HAVG implantation.
Title
Development of IgG antibodies
Description
Determine whether IgG antibodies to the extracellular matrix material are formed in response to implantation of the HAVG.
Time Frame
From baseline to day 29, weeks 12 and 26 after HAVG implantation.
Title
Graft interventions
Description
Determine the rates of interventions needed to maintain / restore patency in the graft.
Time Frame
At each visit, i.e. day 1, day 4-7, day 15, day 29, day 57, week 12, week 16, 20, 26 after HAVG implantation.
Title
HAVG patency rates
Description
Patency rates (primary, primary assisted, and secondary)
Time Frame
at 12, 18, 24 months after HAVG implantation.

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
80 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Patients 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 upper extremity to start or maintain hemodialysis therapy Age 18 to 80 years old, inclusive Suitable anatomy for implantation of straight forearm grafts or curved upper arm grafts (arterial anastomosis to radial or brachial artery, venous anastomosis to either brachial cephalic or very central basilica vein) Hemoglobin ≥8 g/dL and platelet count ≥100,000 cells/mm3 prior to Day 1 Other hematological and biochemical parameters within a range consistent with ESRD and acceptable for the administration of general anesthesia prior to Day 1 Adequate liver function, defined as serum bilirubin ≤1.5 mg/dL; GGT, AST, ALT, and alkaline phosphatase ≤2x upper limit of normal or international normalized ratio (INR) ≤1.5 prior to Day 1. Able to communicate meaningfully with investigative staff, competent to give written informed consent, and able to comply with entire study procedures Able and willing to give informed consent Life expectancy of at least 1 year Exclusion Criteria: History or evidence of severe cardiac disease (NYHA Functional Class III or IV), myocardial infarction within 6 months of study entry (Day 1), ventricular tachyarrhythmias requiring continuing treatment, or unstable angina Uncontrolled or poorly controlled diabetes; hospitalization for poor glucose control within the previous 6 months is an absolute exclusion criterion History or evidence of severe peripheral vascular disease in the upper limbs Known or suspected central vein obstruction on the side of planned graft implantation Stroke within 6 months of study entry (Day 1) Candidate for renal transplantation Treatment with any investigational drug or device within 60 days prior to study entry (Day 1) Treatment with vitamin K-antagonists, factor Xa inhibitors, or direct thrombin inhibitors within the month prior to study entry (Day 1) Female patients who are pregnant, intending to become pregnant, nursing or intending to nurse during the study Female patients of child bearing potential (not surgically sterile or at least 2 years post menopause) who do not use a highly effective method of birth control (failure rate less than 1% per year when used consistently and correctly), eg, implants, injectables, combined oral contraceptives in combination with a barrier method, some intrauterine contraceptive devices, sexual abstinence, or a vasectomized partner History of cancer with active disease or treatment within the previous year Immunodeficiency including AIDS / HIV Documented hypercoagulable state or history of 2 or more DVTs or other spontaneous intravascular thrombotic events (thromboses of previous dialysis accesses do not count) Bleeding diathesis Active clinically significant autoimmune disease History of heparin-induced thrombocytopenia Previous PTFE graft in the operative limb unless the HAVG can be placed more proximally than the previous failed graft More than 1 failed PTFE graft in the operative limb Active local or systemic infection (WBC > 15,000 cells/mm3) Patients receiving a forearm graft with which crosses the elbow Patients receiving an upper arm graft with arterial anastomosis to the axillary artery or venous anastomosis to the axillary vein unless low in the axilla and accessible for ultrasound monitoring and compression Patients receiving a lower extremity AV access Known serious allergy to aspirin Any other condition which in the judgment of the investigator would preclude adequate evaluation of the safety and efficacy of the HAVG Previous enrollment in this study Employees of the sponsor or patients who are employees or relatives of the investigator
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Lynda H Szczech, MD, MSCE
Organizational Affiliation
Humacyte, Inc.
Official's Role
Study Director
Facility Information:
Facility Name
Duke University Medical Center Department of Vascular Surgery
City
Durham
State/Province
North Carolina
ZIP/Postal Code
27710
Country
United States
Facility Name
The Methodist Hospital
City
Houston
State/Province
Texas
ZIP/Postal Code
77030
Country
United States
Facility Name
Sentara Norfolk General Hospital Vascular & Transplant Specialists
City
Norfolk
State/Province
Virginia
ZIP/Postal Code
23507
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No
Citations:
PubMed Identifier
27203778
Citation
Lawson JH, Glickman MH, Ilzecki M, Jakimowicz T, Jaroszynski A, Peden EK, Pilgrim AJ, Prichard HL, Guziewicz M, Przywara S, Szmidt J, Turek J, Witkiewicz W, Zapotoczny N, Zubilewicz T, Niklason LE. Bioengineered human acellular vessels for dialysis access in patients with end-stage renal disease: two phase 2 single-arm trials. Lancet. 2016 May 14;387(10032):2026-34. doi: 10.1016/S0140-6736(16)00557-2.
Results Reference
result
Links:
URL
https://pubmed.ncbi.nlm.nih.gov/27203778/
Description
Results of the clinical study have been published

Learn more about this trial

Safety and Efficacy of a Vascular Prosthesis for Hemodialysis Access in Patients With End-Stage Renal Disease

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