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Chronic Venous DiseasePhase 3NCT04310280

Effects of Local Insulin on Varicose Ulcers for Wound Healing

A Phase 3 study testing Insulin Glargine and Saline in people with Chronic Venous Disease and Varicose Ulcer, run by Hospital Central "Dr. Ignacio Morones Prieto" at 1 site in Mexico.

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

A randomized, split-plot, double-blind, placebo-controlled trial. The varicose ulcer is divided into two (side A and B). Half of the wound's surface is treated locally with insulin (Glargine) applied at an approx depth of 3-4 mm. Treatment with insulin is administered for 7 days. Read more about this study

Who is it for?
Ages 18 to 85 years
What is being tested?
Insulin Glargine and Saline
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
13 participants
Where
1 siteMexico
Study dates
1 Jun 2019to 15 Feb 2020
Phase
Phase 3
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 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Any gender
  • Presence of varicose ulcer in lower extremities with a size greater than 25 cm2
  • Absence of infection

Who cannot join

  • Presence of diabetes or glycated hemoglobin >6.5%
  • Comorbidities that affect wound healing
  • Malnutrition
  • Active smoking

Trial locations and contacts

1 site in 1 country.

Mexico1 site
  • Mario Aurelio Martínez-Jiménez

    San Luis Potosí City, San Luis Potosí, 78220

Other trials in Mexico

About this study

Official title: Effects of Local Insulin on Wound Angiogenesis and Fibroplasia in Varicose Ulcers

A randomized, split-plot, double-blind, placebo-controlled trial. The varicose ulcer is divided into two (side A and B). Half of the wound's surface is treated locally with insulin (Glargine) applied at an approx depth of 3-4 mm. Treatment with insulin is administered for 7 days. Biopsy specimens of the two sides are obtained on days 0 and 7. A thermographic photograph of the wound is taken at days 0 and 7. The number of blood vessels and fibroplasia is evaluated as the main outcome.

Read the detailed description

A randomized, split-plot, double-blind, placebo-controlled trial. Chronic Varicose Ulcers measuring more than 4 cm in any of its dimensions, and that comply with candidate criteria are included in the present study. A split-mouth model is used.

The ulcer is divided into two (sides A and B). The side in which treatment is applied is randomized. Half of the wound's surface is treated locally with insulin (Glargine) applied at an approx depth of 3-4 mm. Both halves are covered with dressings and compression therapy is applied. Treatment with insulin is administered for 7 days. Biopsy specimens of the two sides are obtained on days 0 and 7. A thermographic photograph of the wound is taken at days 0 and 7, as control of the local temperature of the wound. This is to asses the process of healing and to correlate with our outcome measures. The number of blood vessels will be evaluated as the main outcome. Fibroplasia and thermal asymmetry between wound sides will be evaluated as secondary outcomes.

Being tested
Insulin Glargine, Saline
Keywords
Varicose Ulcer, Wound Healing, Insulin, Angiogenesis
Medical subject headings
Varicose Ulcer, Insulin Resistance

What participants receive

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

  • Insulin GlargineDrug

    Half of the wound surface is injected daily with topical glargine insulin

  • SalineDrug

    Half of the wound surface is injected daily with topical saline solution

Study groups in NCT04310280
Study groupRoleWhat they receive
Topical insulin glargineExperimentalThe wound surface is treated locally with glargine insulin injected sub-dermal in a daily matter for 7 days. Allocation is randomized.
Receives: Drug: Insulin Glargine
0.9% saline solutionPlacebo comparatorThe wound surface is treated with conventional wound care in a daily matter for 7 days. Allocation is randomized.
Receives: Drug: Saline

What is being measured

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

  1. Final angiogenesis

    Number of blood vessels in a skin biopsy

    Measured: Day 7

Secondary outcomes (3)
  1. Fibroplasia

    Percentage of fibrous tissue in a skin biopsy

    Measured: Day 7

  2. Thermal asymmetry

    Difference between the temperature of the wound and the surrounding healthy tissue

    Measured: Day 7

  3. Hypoglycaemia

    Presence of capillary blood glucose of <60 mg/dl or clinical symptoms of hypoglycemia

    Measured: Day 7

Timeline

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

  1. First posted17 Mar 2020
  2. Study start1 Jun 2019
  3. Primary completion31 Dec 2019
  4. Study completion15 Feb 2020

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Parallel assignment Randomized split-plot design
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
13 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04310280
Sponsor's protocol ID
01-17
Status last verified
Mar 2020
First submitted
11 Mar 2020
Last updated
17 Mar 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Anonymized data will be available upon request after the publication of results.

Publications

  • Martinez-Jimenez MA, Valadez-Castillo FJ, Aguilar-Garcia J, Ramirez-GarciaLuna JL, Gaitan-Gaona FI, Pierdant-Perez M, Valdes-Rodriguez R, Sanchez-Aguilar JM. Effects of Local Use of Insulin on Wound Healing in Non-diabetic Patients. Plast Surg (Oakv). 2018 May;26(2):75-79. doi: 10.1177/2292550317740688. Epub 2017 Nov 22.

    PubMed 29845043
  • Martinez-Jimenez MA, Aguilar-Garcia J, Valdes-Rodriguez R, Metlich-Medlich MA, Dietsch LJP, Gaitan-Gaona FI, Kolosovas-Machuca ES, Gonzalez FJ, Sanchez-Aguilar JM. Local use of insulin in wounds of diabetic patients: higher temperature, fibrosis, and angiogenesis. Plast Reconstr Surg. 2013 Dec;132(6):1015e-1019e. doi: 10.1097/PRS.0b013e3182a806f0.

    PubMed 24281606
  • Martinez-Jimenez MA, Kolosovas-Machuca S, Alcocer F, Ortiz-Dosal LC, Gonzalez-Grijalva MC, Delsol-Revuelta GA, Gaitan-Gaona FI, Valadez-Castillo FJ, Ramirez-GarciaLuna JL. A Randomized Controlled Trial on the Effect of Local Insulin Glargine on Venous Ulcer Healing. J Surg Res. 2022 Nov;279:657-665. doi: 10.1016/j.jss.2022.06.070. Epub 2022 Aug 3.

    PubMed 35932720

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Insulin Glargine and Saline in people with Chronic Venous Disease and Varicose Ulcer, run by Hospital Central "Dr. Ignacio Morones Prieto" at 1 site in Mexico.

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 3 inclusion and 4 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 17 Mar 2020. 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 Mexico. 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. Some participants in this study may receive a placebo. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Final angiogenesis (time frame: Day 7). 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 NCT04310280, which also lists 3 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 17 Mar 2020.

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