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AtherosclerosisPhase 4SEMA-VRNCT05870462

Semaglutide and Vascular Regeneration

A Phase 4 study testing Semaglutide Pen Injector in people with Atherosclerosis and Cardiovascular Diseases, run by Canadian Medical and Surgical Knowledge Translation Research Group at 2 sites in Canada.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
Search all trials

Trial summary

SEMA-VR is a prospective, randomized, 6-month long, open-label study of semaglutide. Approximately 100 participants with type 2 diabetes and/or obesity will be randomized (1:1) to receive semaglutide at escalating doses (up to 1.0 mg/week) or usual care without semaglutide for 6 months. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Semaglutide Pen Injector
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
2 sitesCanada
Study dates
29 Apr 2023to Dec 2024
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adults ≥ 18 years of age who meet one of the following Health Canada indications to receive subcutaneous semaglutide injections:
  • Documented T2D with inadequate glycemic control
  • Body mass index (BMI) ≥ 30 kg/m^2 (obesity)
  • BMI ≥ 27 kg/m^2 (overweight) and at least one weight-related comorbidity, such as hypertension, dyslipidemia, or obstructive sleep apnea
  • AND meet one of the following ASCVD criteria:
  • History of ASCVD:
Show all 20Show fewer
  • Documented coronary artery disease
  • Documented cerebrovascular or carotid disease
  • Documented peripheral artery disease
  • No ASCVD but has 2 or more of the following risk factors:
  • Cigarette smoker or stopped smoking within 3 months of screening
  • Persistent hypertension (defined as office blood pressure ≥ 140/90 mmHg) or currently on antihypertensive medications
  • BMI ≥ 27 kg/m^2
  • estimated glomerular filtration rate (eGFR) ≤ 60 mL/min/1.73m^2
  • Treated or untreated dyslipidemia
  • Triglyceride ≥ 2.0 mmol/L
  • HDL-C ≤ 1.0 mmol/L for men or ≤ 1.3 mmol/L for women
  • High sensitivity C-reactive protein (hsCRP) ≥ 2.0 mg/L
  • Documented micro- or macro-albuminuria
  • Self-identified South Asian ethnicity

Who cannot join

  • Female subjects who are pregnant, planning pregnancy, or breastfeeding
  • HbA1c > 11.0 %
  • Currently on a GLP-1RA or previously taken a GLP-1RA
  • Personal or family history of medullary thyroid carcinoma
  • Multiple Endocrine Neoplasia syndrome type 2 (MEN 2)
  • New York Heart Association class IV symptoms of heart failure
Show all 13Show fewer
  • Known history of severe liver disease (e.g. Child-Pugh Class B or C)
  • White blood cell count ≥ 15 x 10^9/L
  • Active infectious disease requiring antibiotic or anti-viral agents
  • Known acquired immunodeficiency syndrome such as HIV
  • On oral steroid therapy (e.g. prednisone or other corticosteroids) or other immunosuppressive agents (e.g. methotrexate)
  • Any malignancy not considered cured (except basal cell carcinoma of the skin). A subject is considered cured if there has been no evidence of cancer recurrence for the 5 years prior to screening
  • Any clinically significant or unstable medical condition that might limit one's ability to complete the study or comply with the requirements of the protocol, including: dermatologic disease, hematological disease, pulmonary disease, hepatic disease, gastrointestinal disease, genitourinary disease, endocrine disease, neurological disease, and psychiatric disease

Trial locations and contacts

2 sites in 1 country.

Canada2 sites, 2 recruiting
  • North York Diagnostic and Cardiac Centre

    North York, Ontario, M6B 1N6

    Subodh Verma, MD, PhD

    Recruiting
  • Diagnostic Assessment Centre

    Scarborough Village, Ontario, M1S4N6

    Subodh Verma, MD, PhD

    Recruiting

Other trials in Canada

About this study

Official title: Semaglutide and Vascular Regeneration in People With Diabetes and/or Obesity

SEMA-VR is a prospective, randomized, 6-month long, open-label study of semaglutide. Approximately 100 participants with type 2 diabetes and/or obesity will be randomized (1:1) to receive semaglutide at escalating doses (up to 1.0 mg/week) or usual care without semaglutide for 6 months.

The goal of this trial is to understand how semaglutide exerts cardio-protective effects in people with type 2 diabetes and/or obesity. The main question it aims to answer is:

Read more
  • Does semaglutide treatment preserve or increase the number of vessel-repairing cells circulating in the blood?

Participants will:

  • Be allocated to receive either semaglutide or usual care for 6 months
  • Provide a blood sample at the baseline visit and another blood sample at the 6-month visit

Researchers will compare participants receiving semaglutide to those receiving usual care for any differences in the 6-month change in the number of vessel-repairing cells in the blood.

Read the detailed description

The leading cause of death in people with type 2 diabetes (T2D) and/or obesity is atherosclerotic cardiovascular disease (ASCVD). Arterial damage and repair are regulated by mechanisms of vessel homeostasis, which include vasculogenesis (de novo blood vessel synthesis), angiogenesis (vessel formation from pre-existing vessels), and arteriogenesis (re-modelling of collateral vessels). Key cellular modulators of these processes include hematopoietic stem/progenitor cells (HPC) and their myeloid progenies, together referred to as vascular regenerative cells.

An established and innovative multi-parametric flow cytometry assay that utilizes lineage-specific cell surface marker expression and aldehyde dehydrogenase (ALDH) activity will be used to characterize and quantify vascular regenerative cells from peripheral blood samples. Using this assay, three distinct populations of vascular regenerative cells within the hematopoietic hierarchy have been previously identified:

  • ALDHhiSSClow (high ALDH activity, low side scatter/granular complexity) represent primitive progenitor cells, such as HPCs, that secrete chemo-attractant cytokines to recruit other circulating vascular regenerative cells to sites of vessel damage and ischemia.
  • ALDHhiSSCmid cells represent macrophage precursor cells (i.e. monocytes) classified along a spectrum of pro-inflammatory subtypes versus pro-vascular subtypes that remodel arterial occlusions.
  • ALDHhiSSChi cells represent granulocyte precursors, consisting of a heterogeneous group of pro-inflammatory subtypes that aggravate atherosclerosis and endothelial damage, along with pro-angiogenic subtypes that reduce inflammation and support vessel repair.

Using this multi-parametric flow cytometry assay, it has been previously reported that people with T2D presented lower frequencies of vascular regenerative cells in their peripheral blood compared to people without T2D. In addition, these frequencies were increased in response to the antihyperglycemic agent empagliflozin and bariatric surgery, suggesting that this regenerative cell deficiency can be reversed. Specifically, three months after bariatric surgery, frequencies of ALDHhiSSClow primitive progenitor cells and pro-vascular ALDHhiSSCmid monocytes in the peripheral blood were increased, whereas frequencies of pro-inflammatory monocytes and ALDHhiSSChi granulocyte precursors were decreased. These studies established circulating vascular regenerative cells as key mechanistic constituents of vessel homeostasis that can be quantified from readily available blood samples, and highlighted the utility of the multi-parametric flow cytometry assay in providing high-throughput, real-time biological readouts of vascular repair potential or deficiency.

Semaglutide belongs to a drug class known as glucagon-like peptide-1 (GLP-1) receptor agonists (GLP-1RA). Semaglutide mimics the actions of GLP-1, a gut hormone that is released after a meal and triggers a range of metabotropic effects such as elevating insulin release, reducing food motility, and increasing satiety. In landmark clinical trials, weekly semaglutide injections led to a 1.9% reduction in HbA1c, 16% weight loss in adults and teens, and a 26% reduction in major ASCVD events.

The precise mechanism(s) underlying the effect of semaglutide on ASCVD reduction remain poorly defined. In light of previous observations (described above), the investigators hypothesize that in people with T2D, semaglutide add-on to usual care will be superior to usual care alone in the restoration of vascular regenerative cell frequency. Specifically, the investigators predict significantly greater baseline to 6 month increases in the frequency of ALDHhiSSClow primitive progenitor cells and pro-vascular ALDHhiSSCmid monocytes, along with decreases in pro-inflammatory monocytes and ALDHhiSSChi granulocyte precursors in the semaglutide-assigned group compared to the usual care group.

Findings from this study will reveal whether semaglutide affects the quantity of circulating vascular regenerative cells responsible for vessel repair, thereby providing a potential mechanism of action behind the reduction of ASCVD events observed in GLP-1RA cardiovascular outcome trials.

Being tested
Semaglutide Pen Injector
Keywords
GLP-1 receptor agonists, GLP-1, Semaglutide, Vascular regeneration, Inflammation, Monocytes, Granulocytes, Hematopoietic progenitor cells, Cardiovascular risk, Type 2 diabetes, Obesity
Medical subject headings
Atherosclerosis, Cardiovascular Diseases, Diabetes Mellitus, Type 2, Obesity, Inflammation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Semaglutide Pen InjectorDrug

    Also called Ozempic, Wegovy

    • 0.25 mg/week (non-therapeutic dose) during Weeks 1-4
    • 0.50 mg/week during Weeks 5-8
    • 1.0 mg/week during Weeks 9-24

    Participants experiencing side effects (e.g. nausea, stomach pain, constipation, diarrhea, vomiting) at the maximum dose (1.0 mg/week) may be down-titrated to 0.50 mg/week.

    Participants who had been receiving a dipeptidyl peptidase 4 (DPP-4) inhibitor (sitagliptin, saxagliptin, linagliptin, alogliptin) will stop taking their DPP-4 inhibitor upon randomization to this arm.

Study groups in NCT05870462
Study groupRoleWhat they receive
SemaglutideExperimentalParticipants will receive once-weekly semaglutide subcutaneous injection [Ozempic] at escalating doses from 0.25 mg/week, 0.5 mg/week, to 1.0 mg/week.
Receives: Drug: Semaglutide Pen Injector
Usual careNo interventionParticipants will continue to receive other usual medications, rehabilitation, procedures, and interventions as recommended by their healthcare providers.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes in the mean frequency (%) of circulating ALDHhiSSClow primitive progenitor cells in individuals treated with semaglutide versus usual care for 6 months

    Measured: Baseline to 6 months post-randomization

Secondary outcomes (3)
  1. Changes in the mean frequency (%) of circulating ALDHhiSSCmid pro-vascular monocytes in individuals treated with semaglutide versus usual care for 6 months

    Measured: Baseline to 6 months post-randomization

  2. Changes in the frequency (%) of circulating ALDHhiSSCmid pro-inflammatory monocytes in individuals treated with semaglutide versus usual care for 6 months

    Measured: Baseline to 6 months post-randomization

  3. Changes in the frequency (%) of circulating ALDHhiSSChi pro-inflammatory granulocyte precursors in individuals treated with semaglutide versus usual care for 6 months

    Measured: Baseline to 6 months post-randomization

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 May 2023
  2. Study start29 Apr 2023
  3. Primary completionDec 2024 (estimated)
  4. Study completionDec 2024 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05870462
Sponsor's protocol ID
Pro00068765
Acronym
SEMA-VR
Status last verified
Jul 2023
First submitted
28 Apr 2023
Last updated
25 Jul 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Hess DA, Verma S, Bhatt D, Bakbak E, Terenzi DC, Puar P, Cosentino F. Vascular repair and regeneration in cardiometabolic diseases. Eur Heart J. 2022 Feb 10;43(6):450-459. doi: 10.1093/eurheartj/ehab758.

    PubMed 34849704
  • Terenzi DC, Bakbak E, Trac JZ, Al-Omran M, Quan A, Teoh H, Verma S, Hess DA. Isolation and characterization of circulating pro-vascular progenitor cell subsets from human whole blood samples. STAR Protoc. 2021 Feb 1;2(1):100311. doi: 10.1016/j.xpro.2021.100311. eCollection 2021 Mar 19.

    PubMed 33554145
  • Ghattas A, Griffiths HR, Devitt A, Lip GY, Shantsila E. Monocytes in coronary artery disease and atherosclerosis: where are we now? J Am Coll Cardiol. 2013 Oct 22;62(17):1541-51. doi: 10.1016/j.jacc.2013.07.043. Epub 2013 Aug 21.

    PubMed 23973684
  • Drucker DJ, Nauck MA. The incretin system: glucagon-like peptide-1 receptor agonists and dipeptidyl peptidase-4 inhibitors in type 2 diabetes. Lancet. 2006 Nov 11;368(9548):1696-705. doi: 10.1016/S0140-6736(06)69705-5.

    PubMed 17098089
  • Cappellari R, D'Anna M, Menegazzo L, Bonora BM, Albiero M, Avogaro A, Fadini GP. Diabetes mellitus impairs circulating proangiogenic granulocytes. Diabetologia. 2020 Sep;63(9):1872-1884. doi: 10.1007/s00125-020-05142-3. Epub 2020 Apr 18.

    PubMed 32306097
  • Terenzi DC, Al-Omran M, Quan A, Teoh H, Verma S, Hess DA. Circulating Pro-Vascular Progenitor Cell Depletion During Type 2 Diabetes: Translational Insights Into the Prevention of Ischemic Complications in Diabetes. JACC Basic Transl Sci. 2018 Nov 5;4(1):98-112. doi: 10.1016/j.jacbts.2018.10.005. eCollection 2019 Feb.

    PubMed 30847424
  • 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.

    PubMed 31477497
  • Hess DA, Trac JZ, Glazer SA, Terenzi DC, Quan A, Teoh H, Al-Omran M, Bhatt DL, Mazer CD, Rotstein OD, Verma S. Vascular Risk Reduction in Obesity through Reduced Granulocyte Burden and Improved Angiogenic Monocyte Content following Bariatric Surgery. Cell Rep Med. 2020 May 19;1(2):100018. doi: 10.1016/j.xcrm.2020.100018. eCollection 2020 May 19.

    PubMed 33205058
  • Sorli C, Harashima SI, Tsoukas GM, Unger J, Karsbol JD, Hansen T, Bain SC. Efficacy and safety of once-weekly semaglutide monotherapy versus placebo in patients with type 2 diabetes (SUSTAIN 1): a double-blind, randomised, placebo-controlled, parallel-group, multinational, multicentre phase 3a trial. Lancet Diabetes Endocrinol. 2017 Apr;5(4):251-260. doi: 10.1016/S2213-8587(17)30013-X. Epub 2017 Jan 17.

    PubMed 28110911
  • Marso SP, Bain SC, Consoli A, Eliaschewitz FG, Jodar E, Leiter LA, Lingvay I, Rosenstock J, Seufert J, Warren ML, Woo V, Hansen O, Holst AG, Pettersson J, Vilsboll T; SUSTAIN-6 Investigators. Semaglutide and Cardiovascular Outcomes in Patients with Type 2 Diabetes. N Engl J Med. 2016 Nov 10;375(19):1834-1844. doi: 10.1056/NEJMoa1607141. Epub 2016 Sep 15.

    PubMed 27633186
  • Sattar N, Lee MMY, Kristensen SL, Branch KRH, Del Prato S, Khurmi NS, Lam CSP, Lopes RD, McMurray JJV, Pratley RE, Rosenstock J, Gerstein HC. Cardiovascular, mortality, and kidney outcomes with GLP-1 receptor agonists in patients with type 2 diabetes: a systematic review and meta-analysis of randomised trials. Lancet Diabetes Endocrinol. 2021 Oct;9(10):653-662. doi: 10.1016/S2213-8587(21)00203-5. Epub 2021 Aug 20.

    PubMed 34425083

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Semaglutide Pen Injector in people with Atherosclerosis and Cardiovascular Diseases, run by Canadian Medical and Surgical Knowledge Translation Research Group at 2 sites in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 20 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 25 Jul 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Brady Park, BMSc (2262359725, brady.park@mail.utoronto.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes in the mean frequency (%) of circulating ALDHhiSSClow primitive progenitor cells in individuals treated with semaglutide versus usual care for 6 months (time frame: Baseline to 6 months post-randomization). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05870462, which also lists 11 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Jul 2023.

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