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GlaucomaNCT04380025

Mirtogenol and Bimatoprost on IOP in Hispanics With Open-Angle Glaucoma

A study testing Experimental: Oral Mirtogenol in people with Glaucoma, run by University of Puerto Rico at 1 site in Puerto Rico.

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 The sponsor has not verified this record for over two years, so it may be out of date.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

A prospective, parallel-group, double-blind, randomized placebo-controlled clinical study will be conducted with an estimated 72 participants. The objective of this study is to determine if Mirtogenol has an additive effect on the reduction of intraocular pressure when combined with bimatoprost in the Hispanic… Read more about this study

Who is it for?
Ages 21 years and older
Conditions the study is for
Glaucoma
What is being tested?
Experimental: Oral Mirtogenol
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
72 participants
Where
1 sitePuerto Rico
Study dates
15 May 2020to 15 May 2021
Phase
Interventional
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 21 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosed with primary open-angle glaucoma (POAG)
  • over 21 yrs
  • Self identified as hispanic
  • Current glaucoma treatment regimen of monotherapy with bimatoprost 0.01% applie into affected eye(s) once daily and with stable IOP less or equal to 21 mmHG

Who cannot join

  • Less than 21 year old
  • Pregnant women (self-reported) or those who are planning to become pregnant in the next six (6) months (There is insufficient reliable information available about the safety of Mirtogenol® when used in medicinal amounts during pregnancy and lactation)
  • Women who are breastfeeding (There is insufficient reliable information available about the safety of Mirtogenol® when used in medicinal amounts during pregnancy and lactation)
  • Individuals with cardiovascular diseases that have required medical intervention in the past three (3) months
  • Patients that required any kind of surgery, radiotherapy or chemotherapy in the past three (3) months
  • Patients with advanced glaucoma with a cup to disk ratio > 0.9, previous glaucoma surgeries or other abnormalities of the eye that affect the visual pathway

Trial locations and contacts

1 site in 1 country.

Jorge R Miranda, Pharm.D. contact

7876460720

jorge.miranda2@upr.edu

Puerto Rico1 site
  • University of Puerto Rico, Medical Sciences Campus

    San Juan, PR, 00936-5067

    Jorge R Miranda, PharmD, 7876460720, jorge.miranda2@upr.edu

    Marino JE Blasini, MD, 787-758-2525 ext. 1933, marino.blasini1@upr.edu

Other trials in Puerto Rico

About this study

Official title: The Effects of Mirtogenol® With Bimatoprost on Intraocular Pressure in Hispanics With Open-Angle Glaucoma: A Double-Blind, Randomized Controlled Trial

A prospective, parallel-group, double-blind, randomized placebo-controlled clinical study will be conducted with an estimated 72 participants. The objective of this study is to determine if Mirtogenol has an additive effect on the reduction of intraocular pressure when combined with bimatoprost in the Hispanic population with primary open angle glaucoma. Baseline clinical data will be collected for each participant and they will be randomized 1:1 to a treatment group (bimatoprost 0.01% and Mirtogenol) or control group (bimatoprost 0.01% and placebo). Efficacy and safety of Mirtogenol will be measured during the 24 week study. Participants will be evaluated in five visits: screening and baseline, week 4, week 8, week 12 and week 24. The tests that will be performed include visual acuity, visual field evaluation, applanation tonometry, optical coherence tomography (OCT), and pachymetry. Side effects or adverse effects will be reported and evaluated by the ophthalmologist at each visit to access the safety of Mirtogenol. The primary efficacy endpoint of intraocular pressure (IOP) will be compared using a t-test and will have an 80% probability to detect a difference between treatments at a 0.05 significance level.

Read the detailed description

METHODOLOGY AND STUDY DESIGN A prospective, parallel-group, double-blind, randomized placebo-controlled clinical trial will be conducted with an estimated 72 primary open-angle glaucoma patients. A double blind RCT was chosen to minimize bias and yield similar groups with the same prognostic at baseline to avoid compromising the validity of the study results. The primary efficacy endpoint of the study will be IOP and the secondary endpoint will be the safety analysis. Qualifying participants will be evaluated for inclusion and exclusion criteria by their ophthalmologist (Dr. Marino Blasini) and informed about the study objectives. If they agree to participate, relevant baseline clinical data will be collected for each participant and they will be assigned to a treatment or a control group by stratified randomization based on their age, intraocular pressure and cup-to-disk ratio. This stratified randomization will allow comparability of randomized study groups at baseline. Participants will be randomized in a 1:1 ratio to treatment group (bimatoprost 0.01% and Mirtogenol®) or control group (bimatoprost 0.01% and placebo) and be assigned a participant ID number. Once the randomization process has concluded, participants will be notified to pass by the office to receive the product and to start using the Mirtogenol® or placebo the next day. Both Mirtogenol® and placebo bottles will label drug of study and be registered with a number identification for each patient. Mirtogenol and the placebo will be stored in a destinated area in the primary investigator's pharmacy under a cool, dry environment that protects them from extreme temperature changes and light. Oral and written instructions on drug regimen, including route of administration, frequency, proper storage and mode of administer will be provided. The groups will self-instill one drop of bimatoprost 0.01% in the affected eye(s) once daily as instructed by the ophthalmologist. In addition, participants will use one (1) capsule of Mirtogenol® or one (1) placebo capsule orally daily in the morning with food. Mirtogenol® will be funded by Life Extension Clinical Research, Inc. Placebo capsules will be similar in appearance, size, and route of administration to Mirtogenol®. The study will have five visits: screening and baseline, week 4, week 8, week 12 and week 24 of approximate 30-60 minutes of duration and an addition visit for pickup of the product after the randomization process. An ophthalmological evaluation will be conducted by a glaucoma specialist at each visit. At the baseline visit, the following tests will be performed: visual acuity, visual field evaluation, applanation tonometry, optical coherence tomography (OCT), and pachymetry. At week 4, and week 8 the following tests will be performed: visual acuity and applanation tonometry. At week 12, the following tests will be performed: visual acuity, visual field evaluation and applanation tonometry. At week 24, assessments will include the following: visual acuity, visual field evaluation, applanation tonometry, optical coherence tomography and pachymetry. The same equipment will be used throughout the study for measurement consistency. Each test will be measured in the morning and the patient will be resting, sitting for at least 10 minutes before measurement. The tests will always be performed by the same person to rule out variations. At each visit, the IOP will be measured twice, with 10-minute intermissions between measurements, and mean values will be recorded. If only one eye is determined eligible as trial eye (meeting the diagnostic criteria for glaucoma), then all assessments will be performed only for the trial eye. If both eyes are eligible, only the eye with highest baseline mean IOP will be included in the statistical analysis. Patients will be instructed not to take any medications within two hours before measurements. Any therapy considered necessary for the patient's welfare will be given at the discretion of the treating physician and will be documented. Safety measures include non-invasive techniques, standard of care treatment during the duration of the study, ophthalmological evaluations and assessment tests. Side effects or adverse effects will be reported and evaluated by the ophthalmologist at each visit and if deemed necessary the trial medication (Mirtogenol® or matching placebo) will be discontinued and therapy adjusted as appropriate by the clinician. Adverse effects will be recorded at each study visit as well as the probability of possible association of the adverse effects to the treatment. Compliance will be reinforced with daily reminder for a month by email or text messages and then weekly reminders until the termination of the study. A monthly calendar will be provided to keep track of doses and possible miss doses. Patient must bring their supplement or placebo bottles and monthly track calendar to each visit and a pill count will be performed. Participants will be contacted one month after discontinuing the trial medication to assess for any prior changes or side effects.

Conditions
Glaucoma
Being tested
Experimental: Oral Mirtogenol, Placebo of oral Dietary supplement
Keywords
bimatoprost, hispanic, Mirtogenol, bilberry, Pycnogenol
Medical subject headings
Glaucoma

What participants receive

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

  • Experimental: Oral MirtogenolDietary supplement

    Also called Bilberry with pycnogenol

    The experimental arm is Oral Mirtogenol dietary supplement, one capsule daily in addition to bimatoprost ophthalmic drops with primary open angle glaucoma

  • Placebo of oral Dietary supplementDietary supplement

    Also called lactose and food grade dyes

    This is the oral placebo of the supplement (control) un daily capsule in addition to the bimatoprost ophtalmic drops

Study groups in NCT04380025
Study groupRoleWhat they receive
MirtogenolExperimentalIn addition of conventional treatment with glaucoma ophtalmic drop medication (bimatoprost) the experimental group will also take Mirtogenol. Mirtogenol is a dietary supplement composed of bilberry and pycnogenol which are botanical compounds with antioxidant properties. The active components of bilberry are flavonoid anthocyanosides (anthocyanins). Anthocyanosides are the only flavonoids able to reach the eye as a target organ in experimental animals. Unchanged anthocyanosides demonstrated after oral administration that it is absorbed and distributed into ocular tissues, showing its ability to pass through the blood-aqueous and blood retinal barriers.6
Receives: Dietary Supplement: Experimental: Oral Mirtogenol
Lactose based PlaceboPlacebo comparatorIn addition of conventional treatment with glaucoma ophtalmic drop medication (bimatoprost) this control group will also take an identical placebo. This placebo is a inactive lactose based product of the same color and size capsule.
Receives: Dietary Supplement: Placebo of oral Dietary supplement

What is being measured

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

  1. Change in intraocular pressure (IOP)

    intraocular pressure (IOP) will be compared using a t-test and will have an 80% probability to detect a difference between treatments at a 0.05 significance level.

    Measured: Participants will be evaluated in five visits: screening and baseline, week 4, week 8, week 12 and week 24.

Secondary outcomes (1)
  1. Change in the Tolerance of the experimental supplement

    The safety of the combination of Mirtogenol® with bimatoprost will be evaluated, specifically, recording gastrointestinal or neurological symptoms if any.

    Measured: 24 weeks

Timeline

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

  1. First posted8 May 2020
  2. Study start15 May 2020 (estimated)
  3. Primary completion15 Mar 2021 (estimated)
  4. Study completion15 May 2021 (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 N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Model description
A prospective, parallel-group, double-blind, randomized placebo-controlled clinical trial will be conducted with an estimated 72 primary open-angle glaucoma patients. A double blind RCT was chosen to minimize bias and yield similar groups with the same prognostic at baseline to avoid compromising the validity of the study results. The primary efficacy endpoint of the study will be IOP and the secondary endpoint will be the safety analysis.
Masking
Double blind
Who is masked
Participant, Care provider
Enrolment
72 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04380025
Sponsor's protocol ID
A4570119
Status last verified
Mar 2020
First submitted
27 Feb 2020
Last updated
8 May 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Steigerwalt RD Jr, Belcaro G, Morazzoni P, Bombardelli E, Burki C, Schonlau F. Mirtogenol potentiates latanoprost in lowering intraocular pressure and improves ocular blood flow in asymptomatic subjects. Clin Ophthalmol. 2010 May 14;4:471-6. doi: 10.2147/opth.s9899.

    PubMed 20505841
  • Gizzi C, Torino-Rodriguez P, Belcaro G, Hu S, Hosoi M, Feragalli B. Mirtogenol(R) supplementation in association with dorzolamide-timolol or latanoprost improves the retinal microcirculation in asymptomatic patients with increased ocular pressure. Eur Rev Med Pharmacol Sci. 2017 Oct;21(20):4720-4725.

    PubMed 29131240
  • Quigley HA, Broman AT. The number of people with glaucoma worldwide in 2010 and 2020. Br J Ophthalmol. 2006 Mar;90(3):262-7. doi: 10.1136/bjo.2005.081224.

    PubMed 16488940
  • Distelhorst JS, Hughes GM. Open-angle glaucoma. Am Fam Physician. 2003 May 1;67(9):1937-44.

    PubMed 12751655
  • Munemasa Y, Kitaoka Y. Molecular mechanisms of retinal ganglion cell degeneration in glaucoma and future prospects for cell body and axonal protection. Front Cell Neurosci. 2013 Jan 9;6:60. doi: 10.3389/fncel.2012.00060. eCollection 2012.

    PubMed 23316132
  • Steigerwalt RD, Gianni B, Paolo M, Bombardelli E, Burki C, Schonlau F. Effects of Mirtogenol on ocular blood flow and intraocular hypertension in asymptomatic subjects. Mol Vis. 2008 Jul 10;14:1288-92.

    PubMed 18618008

Questions about this trial

What is this clinical trial studying?

A study testing Experimental: Oral Mirtogenol in people with Glaucoma, run by University of Puerto Rico at 1 site in Puerto Rico.

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 6 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 8 May 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 Puerto Rico. 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.

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 Jorge R Miranda, Pharm.D. (7876460720, jorge.miranda2@upr.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in intraocular pressure (IOP) (time frame: Participants will be evaluated in five visits: screening and baseline, week 4, week 8, week 12 and week 24.). 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 NCT04380025, which also lists 6 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 8 May 2020.

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