Vascular Regenerative Cell Exhaustion in Adults with Peripheral Artery Disease (PAD-VRCE)
NCT ID: NCT06626646
Last Updated: 2024-10-04
Study Results
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Basic Information
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RECRUITING
40 participants
OBSERVATIONAL
2024-10-31
2025-07-31
Brief Summary
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Detailed Description
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PAD-VRCE is an observational, cross-sectional, two-arm cohort study aimed at determining the differences in the progenitor cell profiles in the blood of individuals with PAD in comparison to individuals without PAD. We hypothesize that people with PAD will exhibit depleted levels of these progenitor cells defined as vascular regenerative cell exhaustion. VRCE impacts the function of anti-inflammatory cells and associated repair mechanisms within blood vessels, and may contribute to the differential long term outcomes between the two groups.
Conditions
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Study Design
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COHORT
CROSS_SECTIONAL
Study Groups
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Peripheral Artery Disease
20 patients with clinically significant/symptomatic Peripheral Artery Disease defined as symptomatic claudication and an ABI of \<0.85
No interventions assigned to this group
Control Group
20 patients who do not have Peripheral Artery Disease
No interventions assigned to this group
Eligibility Criteria
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Inclusion Criteria
1. Clinically significant/symptomatic PAD (defined as symptomatic claudication with and an ankle brachial index of less than 0.85).
2. No history of PAD.
2. Willing and able to provide written informed consent and comply with study procedures.
Exclusion Criteria
2. Any life-threatening disease expected to result in death within two years.
3. Any malignancy not considered cured (except basal cell carcinoma of the skin). An individual is considered cured if there has been no evidence of cancer recurrence for the five years prior to screening.
4. Uncontrolled hypertension.
5. New York Heart Association Class IV heart failure.
6. Active liver disease or liver dysfunction.
7. Active kidney disease or kidney dysfunction.
8. History of hemorrhagic stroke or other major bleeding disorder.
9. White blood cell count of ≥15x10\^9/L.
10. Active infectious disease requiring systemic antibiotic or anti-viral agents.
11. Known acquired immunodeficiency syndrome, such as Human Immunodeficiency Virus.
12. On oral steroid therapy (e.g. prednisone or other corticosteroids) or other immunosuppressive agents (e.g. methotrexate).
13. Treated autoimmune disorders
18 Years
80 Years
ALL
Yes
Sponsors
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Canadian Medical and Surgical Knowledge Translation Research Group
OTHER
Responsible Party
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Principal Investigators
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Subodh Verma, MD
Role: PRINCIPAL_INVESTIGATOR
University of Toronto
David A Hess, PhD
Role: PRINCIPAL_INVESTIGATOR
Western University, Canada
Locations
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North York Diagnostic and Cardiac Centre
North York, Ontario, Canada
Diagnostic Assessment Centre
Scarborough Village, Ontario, Canada
Countries
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Central Contacts
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Facility Contacts
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References
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Krishnaraj A, Bakbak E, Teoh H, Pan Y, Firoz IN, Pandey AK, Terenzi DC, Verma R, Bari B, Bakbak AI, Kunjummar SP, Yanagawa B, Connelly KA, Mazer CD, Rotstein OD, Quan A, Bhatt DL, McGuire DK, Hess DA, Verma S. Vascular Regenerative Cell Deficiencies in South Asian Adults. J Am Coll Cardiol. 2024 Feb 20;83(7):755-769. doi: 10.1016/j.jacc.2023.12.012.
Hess DA, Terenzi DC, Trac JZ, Quan A, Mason T, Al-Omran M, Bhatt DL, Dhingra N, Rotstein OD, Leiter LA, Zinman B, Sabongui S, Yan AT, Teoh H, Mazer CD, Connelly KA, Verma S. SGLT2 Inhibition with Empagliflozin Increases Circulating Provascular Progenitor Cells in People with Type 2 Diabetes Mellitus. Cell Metab. 2019 Oct 1;30(4):609-613. doi: 10.1016/j.cmet.2019.08.015. Epub 2019 Aug 30.
Hicks CW, Yang C, Ndumele CE, Folsom AR, Heiss G, Black JH 3rd, Selvin E, Matsushita K. Associations of Obesity With Incident Hospitalization Related to Peripheral Artery Disease and Critical Limb Ischemia in the ARIC Study. J Am Heart Assoc. 2018 Aug 21;7(16):e008644. doi: 10.1161/JAHA.118.008644.
Shishehbor MH, White CJ, Gray BH, Menard MT, Lookstein R, Rosenfield K, Jaff MR. Critical Limb Ischemia: An Expert Statement. J Am Coll Cardiol. 2016 Nov 1;68(18):2002-2015. doi: 10.1016/j.jacc.2016.04.071. Epub 2016 Sep 28.
Fowkes FG, Rudan D, Rudan I, Aboyans V, Denenberg JO, McDermott MM, Norman PE, Sampson UK, Williams LJ, Mensah GA, Criqui MH. Comparison of global estimates of prevalence and risk factors for peripheral artery disease in 2000 and 2010: a systematic review and analysis. Lancet. 2013 Oct 19;382(9901):1329-40. doi: 10.1016/S0140-6736(13)61249-0. Epub 2013 Aug 1.
Other Identifiers
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Pro00080564
Identifier Type: -
Identifier Source: org_study_id
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