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NCT07005323Recruiting

Progression Suppression and Retinal Regression in VEGF-resistant AMD

Phase I/IIa Clinical Study of PAL-222 Targeting Patients With Neovascular Age-related Macular Degeneration (AMD) That Shows no Response to Existing Therapy

Source: ClinicalTrials.gov · Last updated 18 Sept 2026

Brief summary (registry, in English)

The goal of this clinical trial is to assess safety and efficacy in patients with Neovascular Age-related Macular Degeneration with no response to existing therapy. The main measures it aims to answer are: * Investigation of adverse events * Changes in clinical testing data * Changes in vital signs * Changes in intraocular pressure of the therapeutic eye * Changes in testing of anterior segment of the therapeutic eye Participants will be implanted one sheet of PAL-222 into the subretinal space through pars plana vitrectomy. Researchers will compare pre and post implantation of therapeutic eye to see if any safety issues recognized

Status (registry)
Recruiting
Study type
Interventional
Enrollment
10 (estimated)
First submitted
3 Mar 2025
Start date
12 Sept 2024
Primary completion date
Aug 2029
Lead sponsor
PharmaBio Corporation
NCT number
NCT07005323

What you commit to

  • Study type: Interventional
  • Planned participants: 10
  • From 12 Sept 2024 to the primary completion date, Aug 2029
  • 3 sites in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Patients who have undergone intraocular surgery in the subject eye. (In the case of cataract surgery, patients may be enrolled if they have had no endophthalmitis or other complications, have progressed well, and more than 7 days have passed since the surgery)
  • Patients who cannot discontinue anticoagulant or antiplatelet let drugs within the appropriate timeframe specified by the principal investigator or a sub-investigator
  • Patients with drug addiction or alcoholism

Other illness

  • Patients with subretinal hemorrhage (1 disc diameter or greater) or hemorrhagic pigment epithelial detachment (of any size) in the study eye.
  • Patients with eye infections
  • Patients with a history of retinal vascular disease other than neovascular AMD, retinal degenerative disease, rhegmatogenous retinal detachment, macular hole, premacular membrane with retinal wall, uveitis, or other ocular inflammatory disease in the subject eye.
  • Patients with severe blood disorders, heart failure, liver disorders, and renal disorders
  • Patients diagnosed with malignant tumor within 5 years or patients requiring treatment

Lab values

  • Patients with positive HBs antigen, HCV antibody, HIV antibody, HTLV-1 antibody, syphilis serum reaction
  • Patients with allergies to human serum albumin antibiotics, trypsin

Other

  • Patients with fibrovascular pigment epithelial detachment (thickness 150 micrometer or more) in the subject eye.
  • Patients with hard exudates in the subretinal or intraretinal area in the subject eye.
  • Patients in whom polypoid lesions are observed in the subject eye on fundus examination, OCT, fluorescein angiography, etc.
  • Patients with optic nerve atrophy in the subject eye
  • Patients with progressive glaucoma in the subject eye (in whom intraocular pressure is not controlled, or visual field loss is progressive or has already spread to the macula)
  • Patients with severe myopia in the subject eye (axial length of 26.5 mm or more, or spherical equivalent of -7.0 D or less in phakic eyes)
  • Patients with corrected visual acuity of the non-subject eye 0.1 or less
  • (Missing number)
  • Patients with abnormal findings that pose a problem in clinical trial participation in screening tests.
  • Pregnant women, lactating women, patients wishing to become pregnant during the trial period

Who the study is looking for

  • Patients aged between 18 and 85 years at the time of consent acquisition
  • Patients diagnosed neovascular AMD in one or both eyes
  • Patients with corrected letter vision in the subject eye of 20 letters or more (equivalent to decimal vision of 0.05) and less than 70 letters (equivalent to decimal vision of 0.5)
  • Patients who apply to one or more of the followings:
    • ① RPE defect site in the RPE tear includes the Fovea
    • ② The Macular atrophy confirmed by low fundus autofluorescence extends to the fovea
    • ③ Patients with choroidal thinning (200 micrometer and less), and subretinal fluid resistant to standard treatment
    • ④ Patients with cystoid macular degeneration with photoreceptor cell loss and intraretinal fluid above fibrovascular pigment epithelial detachment
  • Patients who had little improvement in exudative changes, with persistent exudative changes to date, and no improvement, or deterioration of vision in two treatments with VEGF inhibitor therapy (two consecutive administration at intervals of 11 weeks +/- 3 days or less within the past year), after existing therapy

Age in the registry: 18 years to 85 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (3)

Sites in registry order. Save your city in your profile to sort them by distance.

SiteCityCountrySite status
Hyogo Prefectural Amagasaki General Medical Center
Coordinator of this site? Confirm its status
AmagasakiJapanRecruiting
Nagoya City University Hospital
Coordinator of this site? Confirm its status
NagoyaJapanRecruiting
Yamaguchi University Hospital
Coordinator of this site? Confirm its status
UbeJapanRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.