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Status unknownNCT03692169Updated Oct 2, 2018

The Changes of Retinal Capillaries After Half-dose PDT Measured by OCTA in Eyes With CSC

An observational study in Central Serous Chorioretinopathy, sponsored by Jin Chen-jin. Status unknown at 2 sites in China. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2018-10-02.

Sponsored by Jin Chen-jin · Observational

The sponsor has not verified this record recently (last verified Sep 2018), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
60
Ages
18 Years to 65 Years
Sex
All
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Study summary

To determine changes in retinal and choroidal capillaries with optical coherence tomographic angiography (OCTA) after half-dose photodynamic therapy (hd-PDT) in eyes with central serous chorioretinopathy (CSC).

Read the detailed description

PDT was hypothesized to have a primary effect on the choroidal capillaries, and a number of studies have reported choriocapillary damage and choroidal vascular remodeling after PDT. More recently, although OCTA related CSC research has been conducted, no quantitative report has thoroughly investigated the microstructural changes in the superficial, deep retinal and choroidal capillaries after hd-PDT. The purpose of the present study is to determine the changes in the retinal and choroidal capillaries quantitatively with OCTA after hd-PDT in eyes with CSC.

This is a prospective observational study of patients undergoing hd-PDT for CSC with active leakage in retinal pigment epithelium (RPE) and followed for 3 months. Fundus fluorescein angiography (FFA) and indocyanine green angiography (ICGA) were performed at baseline; best corrected visual acuity (BCVA), fundus photography, optical coherence tomography angiography (OCTA) with the split-spectrum amplitude-decorrelation angiography algorithm (XR Optovue, Fremont, CA, USA) and spectral domain OCT (SD-OCT) were performed at baseline and each follow-up visit after hd-PDT.

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Conditions studied

  • Central Serous Chorioretinopathy

Keywords

  • Central serous chorioretinopathy
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In context

Central Serous Chorioretinopathy

86 studies on the registry are indexed under Central Serous Chorioretinopathy; 13 are open to participants now.

This study's planned enrollment of 60 is below the median of 83 across 21 observational studies indexed under Central Serous Chorioretinopathy.

Browse Central Serous Chorioretinopathy studies →

Lead sponsor

Jin Chen-jin is the lead sponsor of 2 studies on the registry; none are open to participants now.

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

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Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Patients with Central Serous Chorioretinopathy (CSC)

Inclusion criteria

  1. CSC diagnosed by FFA and ICGA, where the active leakage was just located in macular fovea with SRF confirmed by OCT
  2. Patient age ≥18 years
  3. BCVA ≥35 letters on ETDRS charts
  4. Persistent CSC for a period of time or patients were anxiety about the symptom and asking for treatment
  5. Lack of either spontaneous improvement or improvement induced by empirical treatment such as pharmaceutical drug
  6. The provision of written informed consent -

Exclusion criteria

Exclusion Criteria:

  1. The presence of any other chorioretinal diseases that may affect the studies, such as age-related macular degeneration (AMD), polypoidal choroidal vasculopathy (PCV)
  2. Patients who had received any previous treatment, including PDT, intraocular drug injection or focal thermal laser photocoagulation for CSC
  3. Patients with PED in macular fovea which the average diameter (transverse diameter and vertical diameter) was more than 300 microns
  4. Patients with high myopia, defined as a refractive error (spherical equivalent) \< -6.00 diopters, or an axial length >26.5 mm
  5. Patients with media opacities, or signal strength index of the images \< 60
  6. Patients under corticosteroid therapy -
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
60 participants (estimated)
Patient registry
No

Groups and cohorts

  • CSC patients

    Half-dose photodynamic therapy was performed when a serous retinal detachment involving the macular fovea was present; The treatment field size was set as 3000 microns. This was achieved by administering 3mg/m² of Verteporfin intravenously over a period of 10 minutes. Fifteen minutes after commencing the verteporfin infusion the GLD was exposed to a 689 nm laser light with a florescence of 600 mw/cm² for 83 seconds and a total energy of 50 J/cm². OCTA (XR Optovue, Fremont, CA, USA) and spectral domain OCT (SD-OCT) were performed at baseline and each follow-up (one month and three months) visit after hd-PDT.

    Procedure: Half-dose photodynamic therapy

Interventions

  • ProcedureHalf-dose photodynamic therapy

    Half-dose photodynamic therapy was achieved by administering 3mg/m² of Verteporfin (Visudyne; Novartis, Switzerland) intravenously over a period of 10 minutes. Fifteen minutes after commencing the verteporfin infusion the greatest linear dimension was exposed to a 689 nm laser light with a florescence of 600 mw/cm² for 83 seconds and a total energy of 50 J/cm². Optical coherence tomography angiography (OCTA) with the split-spectrum amplitude-decorrelation angiography algorithm (XR Optovue, Fremont, CA, USA) and spectral domain OCT (SD-OCT) were performed at baseline and each follow-up (one month and three months) visit after hd-PDT.

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What researchers measure

Primary outcomes

  1. Changes of retinal capillaries after hd-PDT

    The primary outcome measure is the OCTA-based changes in the retinal capillaries after hd-PDT

    Time frame: 1 month, 3 month

Secondary outcomes

  1. The proportion of eyes with complete absorption of subretinal fluid(SRF)

    The outcome 2 measure is the OCT-based improvement rate (defined as the proportion of eyes with complete absorption of subretinal fluid on OCT images)

    Time frame: 1 month, 3 month

  2. Change of Best Corrected Visual Acuity(BCVA)

    The outcome 3 measure is the EDTRS charts-based improvement of Best Corrected Visual Acuity

    Time frame: 1 month, 3 month

  3. Changes of choroidal thickness after hd-PDT

    The outcome 4 measure is the OCT-based thinning of choroidal thickness after hd-PDT

    Time frame: 1 month, 3 month

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Study locations

1 of 2 sites recruiting
  • Fabao Xu
    Guangzhou, Guangdong 510000, China
    Completed
  • Zhongshan Ophthalmic Center, Sun Yat-sen University
    Guangzhou, Guangdong 510000, China
    Recruiting
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References and documents

Publications

  • Peng J, Zhong L, Ma L, Jin J, Zheng Y, Jin C. Comparison of vascular parameters between normal cynomolgus macaques and healthy humans by optical coherence tomography angiography. BMC Ophthalmol. 2019 Oct 11;19(1):204. doi: 10.1186/s12886-019-1207-x. PubMed 31601186 ↗

Individual participant data

Plan to share: Undecided

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 2, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03692169
Lead sponsor
Jin Chen-jin
Responsible party
Jin Chen-jin (Jin Chen-jin, Sun Yat-sen University) — Sponsor-investigator
First posted
Oct 2, 2018
Start date
Oct 31, 2016
Primary completion
Oct 10, 2018 (estimated)
Completion
Jun 30, 2019 (estimated)
Last update
Oct 2, 2018

Study contacts

Fabao Xu
Contact
517311823@qq.com
15521250400
Chenjin Jin
study director · Zhongshan Ophthalmic Center, Sun Yat-sen University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Sep 2018. You cannot join it, but the record below documents what was studied.

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