Polypoidal Choroidal Vasculopathy Clinical Trial
Official title:
Interval of Disease Inactivity After Complete Polypoidal Regression on ICGA in Eyes With Polypoidal Choroidal Vasculopathy Following Intravitreous Aflibercept Treatment
Verified date | January 2021 |
Source | Chiang Mai University |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Polypoidal choroidal vasculopathy (PCV), a subtype of neovascular age-related macular degeneration (NV AMD), is an important cause of central visual loss, especially among Asian and African descendants. PCV is characterized by the presence of hyperfluorescent polypoidal lesions, with or without branching vascular network, identified on indocyanine green angiography (ICGA), currently the gold standard for PCV diagnosis. In addition to visual improvement from baseline, polypoidal regression or complete disappearance of polypoidal lesions on ICGA has been considered an important treatment outcome in large PCV trials including the PLANET1 and EVEREST II2 studies. Rate of polypoidal regression following intravitreous aflibercept monotherapy was 33% in the PLANET study1 year 2 and ranged between 55% to 78% in other Asian cohorts.3-4 Recently, our previous investigation5 on the timing of polypoidal regression following a fixed-dosing aflibercept monotherapy (3 initial monthly injections, then q 8 weeks until 1 year) in 40 Thai PCV eyes suggested that, among 22 eyes (55%) with polypoidal regression at 1 year, a majority of them showed complete polypoidal regression before 6 months (median duration of complete regression: 3 months (IQR, 2 months to 6 months). However, due to the fixed-dosing regimen used in previous study, there are limited data on how often polypoidal lesions remain regressed on ICGA when the treatment is deferred in eyes with polypoidal regression, nor what changes might be seen subsequently on OCT when treatment is deferred in this situation. Therefore, this study aims to determine the changes seen on OCT subsequent to complete regression of polypoidal lesions on ICGA in PCV eyes following intravitreous aflibercept treatment. Results from this study may provide some insights on longer-term PCV management
Status | Recruiting |
Enrollment | 80 |
Est. completion date | November 2023 |
Est. primary completion date | November 2022 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Age of =18 years - Diagnosis of treatment-naïve PCV in either eye - PCV is defined according to the following criteria Presence of focal subretinal ICGA hyperfluorescence within the first 6 minutes, plus one of the followings; 1) subretinal orange nodule corresponds to hyperfluorescent nodule on ICGA, 2) massive submacular hemorrhage of 4 disc area or larger, 3) nodular appearance on stereoscopic viewing, 4) pulsatile polypoidal lesion, 5) abnormal vascular channel supplying the polypoidal lesion, 6) hypofluorescent halo around the nodule6 - If any participant presents with bilateral PCV in which both eyes are eligible for the study, the eye with worse vision will be chosen as the study eye Exclusion Criteria: - Presence of co-existing vision threatening conditions in the study eye, e.g., diabetic retinopathy, or retinal vascular occlusion - Presence of ocular or periocular infections, active intraocular inflammation, or known hypersensitivity to aflibercept or any of the excipients in aflibercept - Inability to obtain good quality imaging due to ocular media abnormalities - Contraindicate for FFA or ICGA due to the following conditions: - Allergic to fluorescein or indocyanine green dye - Allergic to iodine or seafood - Impaired kidney or liver functions - Not able to follow up according to the study protocol |
Country | Name | City | State |
---|---|---|---|
Thailand | Voraporn Chaikitmongkol | Chiang Mai |
Lead Sponsor | Collaborator |
---|---|
Chiang Mai University |
Thailand,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Systemic adverse event | incidence of stroke or myocardial infarction | 1 to 24 months from baseline | |
Other | Ocular adverse event | incidence of post-injection endophthalmitis, retinal detachment, or vitreous hemorrhage, etc | 1 to 24 months from baseline | |
Primary | Interval of disease activity on color fundus photography or optical coherence tomography | Disease inactivity on color fundus photography is defined as an absence of new retinal or subretinal or sub-RPE hemorrhage on color fundus photography compared with baseline
Disease inactivity on OCT is defined as an absence of intraretinal thickening or CME or subretinal fluid or PED or enlarging PED on OCT |
1 to 24 months |
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