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Diabetic Macular EdemaPhase 1/2NCT03384524

Evaluation of Bromocriptine, Metoprolol and Tamsulosin in Eyes With Non-Central DME

A Phase 1/2 study testing Bromocriptine 2.5 MG, Metoprolol 25 MG and Tamsulosin 0.4 MG in people with Diabetic Macular Edema, run by Andrew Moshfeghi, MD, MBA.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This phase I/II trial is designed to provide proof of concept evidence that combination therapy can have a beneficial effect on DME and possibly prevent increases in retinal volume or progression of non-central DME into the central subfield of the macula. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Diabetic Macular Edema
What is being tested?
Bromocriptine 2.5 MG, Metoprolol 25 MG and Tamsulosin 0.4 MG
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
0 participants
Where
No sites listed yet
Study dates
Mar 2018to May 2019
Phase
Phase 1/2
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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age >18 years
  • Type 1 or type 2 diabetes mellitus
  • Best corrected visual acuity using the early treatment diabetic retinopathy study (ETDRS) visual acuity test letter score ≥ 74 (i.e., 20/32 or better) within 30 days of enrollment.
  • On clinical exam, definite retinal thickening due to DME within 3,000 μm of the center of the macula but not involving the 500 μm central subfield.
  • Thickened non-central macular subfields on the spectral domain OCT macular map
  • Central subfield thickness within threshold definition for normal central subfield thickness
  • No focal/grid laser within the last 6 months or other treatment for DME within the last 4 months.
  • Pseudophakia

Who cannot join

  • Patients with active proliferative diabetic retinopathy
  • Pan retinal photocoagulation within the last 12 months of study initiation
  • A condition that, in the opinion of the investigator, would preclude participation in the study, e.g., unstable medical status including blood pressure, cardiovascular disease, and glycemic control.
  • Subjects experiencing poor glycemic control who, within the last 4 months, initiated intensive insulin treatment (a pump or multiple daily injections) or plan to do so in the next 4 months.
  • Use of systemic corticosteroids or anti-VEGF (vascular endothelial growth factor) therapy.
  • Participation in an investigational trial that involves treatment with any drug within 30 days of randomization that has not received regulatory approval at the time of study entry.
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  • Note: study participants cannot receive another investigational drug while participating in this study.
  • Known allergy or hypersensitivity to any component of the study drugs.
  • Postpartum women with a history of coronary artery disease or other severe cardiovascular conditions (a bromocriptine contraindication).
  • Planned glaucoma surgery (floppy iris syndrome associated with tamsulosin therapy).
  • Blood pressure > 180/110 mmHg (systolic above 180 or diastolic above 110 mmHg).
  • If blood pressure is brought below 180/110 by anti-hypertensive treatment, an individual can become eligible.
  • Subjects with second or third degree heart block (metoprolol contraindication).
  • Subjects with asthma or other bronchospastic disease (metoprolol precaution).
  • Individuals currently taking one of the study medications or a medication in the same therapeutic class (beta receptor antagonists, alpha-1 receptor antagonists, or bromocriptine).
  • Participants expecting to move out of the area of the clinical center to an area not covered by another clinical center during the 12 months of the study.
  • For women of child-bearing potential: pregnant or lactating or intending to become pregnant within the next 12 months. Women who are potential study participants should be questioned about the potential for pregnancy. Investigator judgment will be used to determine when a pregnancy test is needed.

About this study

Official title: A Phase I/II Evaluation of Bromocriptine, Metoprolol and Tamsulosin Combination Therapy in Eyes With Non-Central Diabetic Macular Edema

This phase I/II trial is designed to provide proof of concept evidence that combination therapy can have a beneficial effect on DME and possibly prevent increases in retinal volume or progression of non-central DME into the central subfield of the macula. If a beneficial effect is apparent in this phase I/II study involving a relatively small sample size and short follow-up period, its results could be used to in plan future phase III trials. We believe this study will be the first to show that a systems pharmacology approach can successfully address diabetic macular edema, and thus revolutionize the treatment of complex retinal diseases for which there are a paucity of effective treatment options.

Being tested
Bromocriptine 2.5 MG, Metoprolol 25 MG, Tamsulosin 0.4 MG, Placebo

What participants receive

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

  • Bromocriptine 2.5 MGDrug

    Also called Bromocriptine Mesylate

    Administered daily

  • Metoprolol 25 MGDrug

    Also called Metoprolol Tartrate

    Administered daily

  • Tamsulosin 0.4 MGDrug

    Also called Tamsulosin HCL, Tamsulosin Hydrochloride

    Administered daily

  • PlaceboOther

    Three pills, matching active drugs to be administered daily

Study groups in NCT03384524
Study groupRoleWhat they receive
Combination regimentActive comparatorA combination regiment of Bromocriptine (2.5 mg/day), Metoprolol (25 mg/day) and Tamsulosin (0.4 mg/day)
Receives: Drug: Bromocriptine 2.5 MG; Drug: Metoprolol 25 MG; Drug: Tamsulosin 0.4 MG
PlaceboPlacebo comparatorThree placebo pills, matching the external appearance of active drugs
Receives: Other: Placebo

What is being measured

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

  1. Change in retinal volume

    Effects of bromocriptine/metoprolol/tamsulosin combination therapy on macular retinal volume compared with placebo in eyes with non-central diabetic macular edema (DME)

    Measured: 14 months

Secondary outcomes (4)
  1. Progression of non-central DME compared to central DME

    Effects of therapy with bromocriptine/metoprolol/tamsulosin on central subfield thickness and compare the progression of non-central DME to central DME as determined by stereoscopic fundus photographs.

    Measured: 14 months

  2. Progression of non-central DME compared to central DME

    Effects of therapy with bromocriptine/metoprolol/tamsulosin on central subfield thickness and compare the progression of non-central DME to central DME as determined by Optical Coherence Tomography (OCT).

    Measured: 14 months

  3. Change in retinal density

    Measured by OCT-angiography

    Measured: 14 months

  4. Foveal avascular changes

    Measured by fluorescein angiography.

    Measured: 14 months

Timeline

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

  1. First posted27 Dec 2017
  2. Study startMar 2018 (estimated)
  3. Primary completionMay 2019 (estimated)
  4. Study completionMay 2019 (estimated)

Why it stopped: withdrawn during planning stages

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03384524
Sponsor's protocol ID
The BEAT DME Study
Status last verified
Mar 2019
First submitted
15 Dec 2017
Last updated
1 Apr 2019
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Bromocriptine 2.5 MG, Metoprolol 25 MG and Tamsulosin 0.4 MG in people with Diabetic Macular Edema, run by Andrew Moshfeghi, MD, MBA.

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 8 inclusion and 17 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: withdrawn, as of the sponsor's last update on 1 Apr 2019. Status can change between updates, so confirm with the study contact before making plans.

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 combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

The study was withdrawn before enrolling participants, so there are no results.

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 retinal volume (time frame: 14 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 1 Apr 2019.

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