Clinical trial Recruiting at 1 site Phase 3 Interventional Ages 50 and up

SMZ1 plus ranibizumab vs placebo plus ranibizumab for wet AMD without PCV

Official title: A 12-month, Randomization, Double-blind, Placebo-controlled, Parallel, Multicenter-Phase 3 Trial to Evaluate the Safety and Efficacy of SMZ1 Tablet in Combination With Ranibizumab in Patients With Neovascular Age-related Macular Degeneration Without Polypoidal Choroidal Vasculopathy

Run by SANGMYUNG innovation · NCT07695207 · Data updated 2026-11-12

A study tests whether SMZ1 tablets added to ranibizumab can give better vision improvement than placebo with ranibizumab in people 50 and older with a specific form of wet age-related macular degeneration.

Quick facts

PhasePhase 3
Study typeInterventional
Ages50 Years and up
SexAll
Enrollment266 (estimated)
SponsorSANGMYUNG innovation
Industry-sponsored
Drugs / interventionsranibizumab, bevacizumab
Locations1 site (Seoul, Seoul)
StatusRecruiting
StartedSeptember 15, 2025
Main results expectedDecember 2027
Study endsJuly 2028
Registry record updatedJuly 10, 2026
Trial IDNCT07695207 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults 50+ with active submacular CNV from nAMD without PCV, limited lesion fibrosis, BCVA between 20/40 and 20/320, and smaller lesion area who can provide informed consent.

Probably not a fit

Patients not meeting the criteria or those who do not respond to SMZ1 may not experience additional benefit beyond standard therapy.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a Phase 3, randomized, double-blind trial comparing SMZ1 plus ranibizumab to placebo plus ranibizumab in neovascular AMD without PCV. Participants receive SMZ1 or placebo alongside standard ranibizumab therapy, with the goal of improving best-corrected visual acuity at 12 months. Eligibility focuses on adults 50+ with active submacular CNV, no PCV, limited lesion fibrosis, and specific BCVA and lesion size criteria. The study is conducted at Kyung Hee University Hospital in Seoul under SANGMYUNG innovation.

Why it matters

Potential benefit: If successful, SMZ1 could enhance visual outcomes when used with ranibizumab for this AMD subset.

How similar studies have gone: Previous approaches with similar combination strategies have shown signal in other retinal diseases, but this exact SMZ1 plus ranibizumab combination for this AMD subset is novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 50 years of age or older
* A study eye satisfying all of the following criteria after screening

  ① Active\* submacular choroidal neovascularization due to nAMD confirmed by fluorescein angiography (FAG) and optical coherence tomography (OCT)

  \*Fluorescence leakage confirmed via FAG and intraretinal or subretinal fluid confirmed via OCT

  ② Absence of active polypoidal lesions due to polypoidal choroidal vasculopathy (PCV) confirmed by indocyanine green angiography (ICGA)
* A study eye with fibrosis covering less than 50% of the total lesion area
* A study eye with ETDRS best corrected visual acuity (BCVA) score range of 73-24 at a distance of 4m (equivalent to 20/40-20/320 of Snellen)
* A study eye with a neovascular lesion area of less than 12 optic-disk areas (For an optic nerve head diameter set to 1.8mm, the corresponding optic-disk area is 2.45mm2)
* Provided written informed consent voluntarily after receiving a full explanation of the clinical trial.

Exclusion Criteria:

* History of ocular treatment, systemic therapies, or surgical procedures, such as photodynamic therapy (PDT) and laser photocoagulation, for the treatment of wet nAMD (supplements and vitamins excluded)
* History of anti-VEGF treatment (e.g., ranibizumab, bevacizumab, aflibercept 2mg, or biosimilars) or combination therapy in the study eye for the treatment of wet nAMD
* A study eye with scarring or fibrosis covering more than 50% of the total lesion area
* A study eye with vitreous hemorrhage occurring within 1 month prior to the Screening Visit
* A study eye with intraocular pressure (IOP) ≥ 25mmHg, including glaucoma with IOP ≥ 25mmHg despite medical treatment
* A study eye with a total lesion area (including vessels, scar tissue, and neovascularization) greater than 12 optic-disk areas (\>30.5mm2), as measured by FAG

Where it's running

  • Kyung Hee University Hospital
    Seoul, Seoul, South Korea
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.