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Diabetes Mellitus, Type 2Phase 2NAEDNCT04867707

Role of Neuraminidase Activity on Endothelial Dysfunction in Type 2 Diabetes

A Phase 2 study testing Zanamivir in people with Diabetes Mellitus, Type 2, run by University of Missouri-Columbia at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The objective is to determine if neuraminidase inhibition with zanamivir is efficacious as a therapeutic strategy to restore endothelial function in T2D patients. Read more about this study

Who is it for?
Ages 45 to 64 years
Conditions the study is for
Diabetes Mellitus, Type 2
What is being tested?
Zanamivir
Could I receive a placebo?
No, everyone receives an active treatment
How many people
14 participants
Where
1 siteUnited States
Study dates
14 Jul 2021to 18 Oct 2024
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 45 to 64 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Men and women with a BMI of 25-39 kg/m2
  • Ages 45-64 years at randomization.
  • Diagnosis of T2D classified based on physician diagnosis.
  • No vulnerable populations (e.g., prisoners, pregnant, children) will be enrolled.

Who cannot join

  • Cardiovascular disease including myocardial infraction, heart failure, coronary artery disease, stroke
  • History of chronic renal or hepatic disease
  • Active cancer
  • Autoimmune diseases
  • Immunosuppressant therapy
  • Hormone replacement therapy
Show all 12Show fewer
  • Excessive alcohol consumption (>14 drinks/week for men, >7 drinks/week for women)
  • Current tobacco use
  • Pregnancy (Premenopausal women will be required to complete a urine pregnancy test before participation)
  • History of asthma or chronic obstructive pulmonary disease.
  • History of allergic reaction to lactose or milk proteins
  • Intranasal live attenuated influenza vaccine (LAIV) given within 2 weeks before zanamivir administration or a planned dose within 48 hours after zanamivir administration. Product insert states to avoid zanamivir administration with intranasal live attenuated influenza vaccine (LAIV).

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Missouri, School of Medicine Clinical Research Center

    Columbia, Missouri, 65212

Other trials in United States

About this study

The objective is to determine if neuraminidase inhibition with zanamivir is efficacious as a therapeutic strategy to restore endothelial function in T2D patients.

Read the detailed description

Twenty subjects will complete five days of treatment with zanamivir. Baseline measurements will be taken before the initiation of treatment, as well as after the conclusion of the treatment period (i.e., a total of two assessment visits per subject). Assessment visits will include: vitals (such as blood pressure, heart rate), fasting blood work for plasma neuraminidase activity, plasma sialic acid, plasma glucose and plasma insulin, brachial artery FMD, and glycocalyx integrity assessment via Glycocheck.

Being tested
Zanamivir
Keywords
endothelial dysfunction, vascular function, glycocalyx integrity assessment
Medical subject headings
Diabetes Mellitus, Type 2

What participants receive

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

  • ZanamivirDrug

    Also called Relenza

    5 days of treatment with 10mg zanamivir inhaler BID

Study groups in NCT04867707
Study groupRoleWhat they receive
Zanamivir treatmentExperimentalStudy participants will receive 5 days of treatment with a zanamivir inhaler.
Receives: Drug: Zanamivir

What is being measured

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

  1. Change in Glycocalyx Integrity-Perfused Boundary Region

    Glycocalyx integrity will be assessed non-invasively using the GlycoCheck. The Glycocheck video microscope instrument will be placed under the subject's tongue to assess red blood cell penetration of the glycocalyx lining. PBR (perfused boundary region) is a measure of distance (mcm) that red blood cells penetrate into the glycocalyx. An increase in PBR in indicative of lower glycocalyx integrity. Outcomes are reported as a change in PBR from Day 0 to Day 5.

    Measured: Day 0 and Day 5

Timeline

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

  1. First posted30 Apr 2021
  2. Study start14 Jul 2021
  3. Primary completion18 Oct 2024
  4. Study completion18 Oct 2024

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
Single group design with 20 subjects
Masking
None (open label)
Enrolment
14 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04867707
Sponsor's protocol ID
2038203
Acronym
NAED
Status last verified
Apr 2025
First submitted
27 Apr 2021
Last updated
25 Apr 2025
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Foote CA, Ramirez-Perez FI, Smith JA, Ghiarone T, Morales-Quinones M, McMillan NJ, Augenreich MA, Power G, Burr K, Aroor AR, Bender SB, Manrique-Acevedo C, Padilla J, Martinez-Lemus LA. Neuraminidase inhibition improves endothelial function in diabetic mice. Am J Physiol Heart Circ Physiol. 2023 Dec 1;325(6):H1337-H1353. doi: 10.1152/ajpheart.00337.2023. Epub 2023 Oct 6.

    PubMed 37801046

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Zanamivir in people with Diabetes Mellitus, Type 2, run by University of Missouri-Columbia at 1 site in United States.

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 4 inclusion and 12 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: finished, as of the sponsor's last update on 25 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 18 Apr 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Glycocalyx Integrity-Perfused Boundary Region (time frame: Day 0 and Day 5). 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 NCT04867707, which also lists 1 linked publication.

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 Apr 2025.

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