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Not yet recruitingNCT07305298Updated Feb 6, 2026

Mirabegron in Patients With Age-Related Macular Degeneration

An observational study in Dry AMD and Overactive Bladder, sponsored by University of Naples. Not yet recruiting at 1 site in Italy. Open to participants aged 50 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-02-06.

Sponsored by University of Naples · Observational

Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
312
Ages
50 Years to 80 Years
Sex
All
01

Study summary

The goal of this clinical trial is to learn if Mirabegron works to treat dry AMD in patients, aged between 50 and 80 years-old, with early or moderate dry AMD and overactive bladder.

The main question it aims to answer is:

  • Is there any change in outer retina morphology in patients treated?

Researchers will compare the safety and efficacy of mirabegron versus conventional approach (Solifenacin) to treat dry AMD in patients with dry AMD and overactive bladder.

Participants will:

  • Take Mirabegron or Solifenacin every day for 12 months
  • Visit the clinic once every 6 months for checkups and tests
02

Conditions studied

  • Dry AMD
  • Overactive Bladder
03

In context

Urinary Bladder, Overactive

855 studies on the registry are indexed under Urinary Bladder, Overactive; 125 are open to participants now.

This study's planned enrollment of 312 is above the median of 109 across 166 observational studies indexed under Urinary Bladder, Overactive.

Browse Urinary Bladder, Overactive studies →

Lead sponsor

University of Naples is the lead sponsor of 11 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
50 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

subjects aged between 50 and 80 years-old with early or moderate dry AMD and overreactive bladder treated with either Mirabegron or Solifenacin

Inclusion criteria

  • Age subjects 50 and 80 years-old
  • Ability to express informed consent
  • Early or moderate dry AMD according to ARDS classification
  • Overreactive bladder
  • Visual acuity greater than BCVA 65 EDTRS letters.

Exclusion criteria

Exclusion Criteria:

    • Any medical condition which contraindicates the use of beta-agonists

      • Uncontrolled hypertension
      • Tachycardia or atrial fibrillation
      • Any allergies to the beta-agonists
      • Renal or hepatic failure
      • Long QT or concomitant treatment with drugs that cause lengthening of the QT interval
      • Any sign of ocular inflammation
      • xudative AMD
      • Any ongoing medical or surgical treatment for AMD (including intravitreal injections, oral supplementation of lutein, zeaxanthin and or high dietary intake of antioxidants)
      • Any other ophthalmic diseases such glaucoma, acute or chronic uveitis, advanced cataract, or any opacities of the ocular media that do not permit high-quality imaging examinations.
      • Pregnancy
      • Any condition or disease that in the opinion of the investigators may put the subject at significant risk or may interfere significantly with the subject's participation in the study (i. e. malignancy, uncontrolled or cardiovascular diseases)
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
312 participants (estimated)
Patient registry
No

Groups and cohorts

  • Mirabegron arm

    Mirabegron will be administered per os at the dose of 50 mg/day for 12 months

    Drug: Mirabegron 50mg

  • Control arm

    Solifenacin will be administered per os at the dose of 5mg/day for 12 months

    Drug: Solifenacin 5mg

Interventions

  • DrugMirabegron 50mg

    Mirabegron (50mg/day per os) will be administered in patients with dry AMD and overactive bladder (MMirabegron arm)

  • DrugSolifenacin 5mg

    Solifenacin (5mg/day per os) will be administered in control group (dry amd and overactive bladder)

06

What researchers measure

Primary outcomes

  1. Changes in outer retinal morphology using SD-OCT

    Outer nuclear layer (ONL) thickness, choroidal thickness (ChT), central macular thickness (CMT) will all be measured in micron

    Time frame: "From enrollment to the end of treatment at 12 months

  2. Changes in FAF assessing

    changes in FAF measured in micron

    Time frame: "From enrollment to the end of treatment at 12 months

Secondary outcomes

  1. mean BCVA

    Mean BCVA according to the ETDRS charts

    Time frame: From enrollment to the end of treatment at 12 months

  2. Mean macular sensitivity (MS)

    Time frame: From enrollment to the end of treatment at 12 months

Other outcomes

  1. Safety parameters

    blood pressure measured in mmHg

    Time frame: From enrollment to the end of treatment at 12 months

  2. Safety parameters

    heart frequency in bpm

    Time frame: From enrollment to the end of treatment at 12 months

  3. Safety parameters

    SpO2 (Peripheral Oxygen Saturation) in % saturation

    Time frame: From enrollment to the end of treatment at 12 months

  4. Safety parameters

    Respiratory rate in dpm

    Time frame: From enrollment to the end of treatment at 12 months

07

Study locations

1 site
  • Federico II
    Naples, Italy
08

References and documents

Publications

  • Ambrosio L, Cammalleri M, Panariello S, Califano G, Scala A, Improta G, Pisani A, Rejdak R, Ostrowski I, Filippi L, Bagnoli P, Dal Monte M, Toro MD. Mirabegron in patients with age-related macular degeneration treated for overactive bladder: a study protocol for a prospective observational non-randomized trial. Front Med (Lausanne). 2026 Mar 16;13:1761473. doi: 10.3389/fmed.2026.1761473. eCollection 2026. PubMed 41919172 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 6, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07305298
Lead sponsor
University of Naples
Collaborators
Medical University of Lublin
Responsible party
Mario Damiano Toro (Principal Investigator, MD, PhD, University of Naples) — Principal investigator
First posted
Dec 26, 2025
Start date
Apr 1, 2026 (estimated)
Primary completion
Dec 1, 2026 (estimated)
Completion
Dec 1, 2026 (estimated)
Last update
Feb 6, 2026

Study contacts

Mario D Toro, Professor
Contact
mariodamiano.toro@unina.it
+393495158220

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.

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