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NCT Number: NCT07389980

Prospective Trial of the Efficacy and Safety of a Personalized Regimen of High-dose Aflibercept 8mg on Treatment-naive Polypoidal Choroidal Vasculopathy: the PALLAS Trial

The purpose of this study is to evaluate the efficacy and safety of the aflibercept 8 mg used in a personalized regimen, with flexible loading dose and treatment intervals from 8 to 24 weeks in eyes with treatment-naive PCV.

Recruiting

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Key information

Age range

19 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Signed informed consent must be obtained prior to participation in the study.
  • Male or female patients ≥ 19 years of age at screening
  • Presence of active polypoidal lesions in the macular as shown by ICGA and presence of serosanguinous maculopathy (exudative or hemorrhagic features involving the macula on floor fundus photography, FA and SD-OCT AND presence of IRF or SRF that affects the central subfield as seen by SD-OCT
  • Best-corrected visual acuity (BCVA) score between 83 and 23 letters, inclusive, using Early Treatment Diabetic Retinopathy Study (ETDRS) visual acuity testing charts at both screening and baseline visit (study eye)

Exclusion criteria

  • Ocular conditions/disorders at screening or baseline which could, in the opinion of the investigator, prevent response to study treatment or may confound interpretation of study results, compromise visual acuity or require planned medical or surgical intervention during the first 12-month study period, structural damage of the fovea, atrophy or fibrosis at the center of the fovea (study eye)
  • A history of any evidence of type 2 or type 3 neovascularization, myopic choroidal neovascularization, or other ocular disorders
  • Total area of subretinal hemorrhage larger than 9DA or comprising ≥ 50% of the lesion area or presence of vitreous hemorrhage in study eye
  • Any active intraocular or periocular infection or active intraocular inflammation, at screening or baseline (study eye)
  • Uncontrolled glaucoma defined as intraocular pressure (IOP) > 25 mmHg on medication, or according to investigator's judgment, at screening or baseline (study eye)
  • Ocular treatments: any anti-VEGF drugs, intraocular or periocular steroids, macular laser photocoagulation or PDT, previous ocular surgery except cataract surgery (study eye)
  • Stroke or myocardial infarction during the 6-month period prior to baseline
  • Systemic anti-VEGF therapy at any time.

Treatment and study plan

aflibercept 8 mg

Drug

The first loading injection will be performed for all participants. After 4 weeks, treatment response will be judged. If the polyp is completely regressed with no disease activity, injection interval will be extended to 8 weeks. The participants with presence of disease activity will continue 4-week loading injections up to 3 monthly loading dose and commence the T&E phase thereafter. In the T&E phase, patients have their injection interval extended or shortened by 4 weeks. The injection interval is maintained if the criteria for treatment adjustment were not met and residual fluid was decreased from the previous visit. The minimum and maximum injection intervals are 8 and 24 weeks, respectively.

Primary outcomes

  1. The proportion of patients who reached a treatment interval of ≥16 weeks at Week 96

    Time frame: Week 96

Secondary outcomes

  1. Last injection interval at week 96

    Time frame: Week 96

  2. Best corrected visual acuity (BCVA) at weet 96

    Time frame: Week 96

    Measurement with the Early Treatment Diabetic Retinopathy Study (ETDRS) letters score

  3. Central retinal thickness and choroidal thickness at week 96

    Time frame: Week 96

    Average retinal thickness at the central 1 mm diameter

  4. umber of participants with treatment-related adverse events

    Time frame: Week 96

    Slit lamp examination and fundoscopy

Study contacts

Contact information is provided by the study sponsor or research team.

Sohee Shin

CONTACT

[email protected]

82-53-620-3440

Sponsors and collaborators

Lead sponsor

Yeungnam University College of Medicine

Other

Collaborators

  • Bayer

Registry information

Acronym: PALLAS

Important dates

Study start
2026
Primary completion
2028
Study completion
2028
First posted
Feb 5, 2026
Registry last updated
Feb 5, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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