Central Serous Chorioretinopathy Registry and Pachychoroid Observation and Natural History Study

NCT ID: NCT05278169

Last Updated: 2023-08-30

Basic Information

• Recruitment Status: UNKNOWN
• Total Enrollment: 350 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2022-03-11
• Study Completion Date: 2024-12-31

Brief Summary

Objectives:

1. To conduct a Natural History Observation Study to characterize the clinical features and progression of Central Serous Chorioretinopathy (CSCR) from the earliest to the vision-threatening stages.

2. Collect genetic samples of affected individuals and their families to establish whether there is a genetic basis for the disease.

3. To create a Registry of patients affected by CSCR who may agree to be contacted for inclusion in future clinical trials.

4. To determine the incidence and risk factors for progression of pachychoroid phenotypes identified from the unaffected fellow eyes of CSCR patients.

Design and subjects:

Observation, non-interventional study with prospective follow-up for 2 years. The study aims to enroll 350 patients with CSCR (100 from Hong Kong Eye Hospital, 80 from Prince of Wales Hospital and Alice Ho Miu Ling Nethersole Hospital, and 170 from Chinese University of Hong Kong (CUHK) Eye Centre at Hong Kong Eye Hospital).

Study instruments:

Functional tests include visual acuity and microperimetry. Retinal imaging with non-invasive ultra-widefield colour fundus camera, fundus autofluorescence (FAF) and optical coherence tomography (OCT). Questionnaires for risk factor profiling and quality of life assessment. Blood specimen will be collected for genetic testing if found to have a clinical diagnosis of CSCR as determined at CUHK Eye Centre at Hong Kong Eye Hospital.

Main outcome measures:

The primary outcome will be longitudinal alteration of retinal pigment epithelium defects on FAF, spectral domain (SD) OCT and infrared imaging. The secondary outcomes are: 1) progressive attenuation of outer nuclear layer (ONL), external limiting membrane (ELM) and ellipsoid zone (EZ) on SD OCT, 2) longitudinal changes of subfoveal choroidal thickness on swept source (SS) OCT, 3) incidence and onset of intraretinal cysts, 4) incidence and onset of type 1 choroidal neovascularization, 5) rate of choriocapillaris non- perfusion on SS OCT angiography (OCTA), 6) rate of loss of retinal sensitivity using microperimetry tests, 7) rate of visual acuity loss, 8) epidemiology of risk factors associated with CSCR, 9) identification of genes and the genetic variants that are associated with susceptibility to CSCR and 10) documentation of the clinical course of serous retinal detachment recurrence(s), persistence and resolution.

Detailed Description

Significance and Applications of Study Results:

I) The proposed study will determine comprehensive clinical characterization of a large cohort of 350 CSCR patients with novel, non-invasive imaging techniques to examine the ultrastructure of the choroid and retina to detect subtle changes that are not visible through routine eye check and conventional fundoscopy examination.

II) To understand the pathophysiology of CSCR through studying ultrastructural changes of chorioretina and genotypes.

III) Longitudinal data from this study will determine CSCR progression risks and treatment outcomes. Our large CSCR database will be a unique, large cohort study with robust clinical and molecular characterizations. This knowledge could help to develop realistic and effective diagnostic tests and individualized treatments for CSCR, and aid in the design of future clinical trials.

Data analysis:

Statistical analyses will be conducted using standard statistical software (SPSS, STATA). The investigators will use a variety of statistical techniques for analysis. Unless otherwise specified, all statistical tests will be two-sided with a 0.05 level of significance. All confidence intervals will be two-sided with 95% confidence level. Categorical variables will be presented as the number and percentage of patients in each category. Continuous variables will be summarized using descriptive statistics such as n, mean, standard deviation, median, minimum, and maximum.

Descriptive statistics will be provided for patient demographics and baseline characteristics. Other relevant baseline information will be listed and summarized as appropriate with descriptive statistics.

An independent committee will review the data and safety of the study. Adequate records will be maintained and made available for audit / inspection. All study documents will be kept for a period of at least three years after study closure.

Significant Differences from Usual Management:

1. The study is a prospective natural history observation study and the protocol requires a total of 5 visits (in addition to routine care) to the CUHK Eye Centre at Hong Kong Eye Hospital for a duration of 2 years.

2. Blood taking will only be performed during the first (baseline) visit for genetic study.

Methods:

For Visit 1 (Baseline, Month 0):

1. Demography and Past medical history (1.1. Medical history, 1.2. Drugs history, 1.3. Blood pressure (BP) and Body-mass index (BMI) measurements, 1.4. Previous fluorescein and indocyanine green angiography images (if available) will be reviewed)

2. Visual function, intraocular pressure and ocular biometry (2.1. Best corrected visual acuity, 2.2. Autorefraction, 2.3. Axial length measurement, 2.4. Fundus Autofluorescence, 2.5. Macular Spectral Domain Optical Coherence Tomography (SD-OCT) 2.6. Ultra-widefield color fundus photography and autofluorescence, 2.7. Macular Swept Source Optical Coherence Tomography (SS-OCT), 2.8. OCT angiography, 2.9. Microperimetry)

3. Sleep quality, mood and quality of life questionnaires (3.1. Morningness and Eveningness Questionnaire, 3.2. Pittsburgh Sleep Quality Index (PSQI), 3.3. Insomnia Severity Index (ISI), 3.4. Epworth Sleepiness Scale (ESS), 3.5. General Anxiety Disorder-7 (GAD-7) and Patient Health Questionnaire-9 (PHQ-9) questionnaires, 3.6. National Eye Institute Visual Functioning Questionnaire - 25 (NEI-VFQ-25) quality of life questionnaire)

4. Blood taking for genetic study

For Visit 2 (Month 6) to Visit 5 (Months 24):

1.1 to 1.4 will be reviewed for any updates. The eye investigations that will be repeated are: 2.1, 2.4 - 2.9 The questionnaires that will be repeated are: 3.5 - 3.6 (only during Visits 3 and 5)

Conditions

Central Serous Chorioretinopathy

Study Design

• Observational Model Type: CASE_ONLY
• Study Time Perspective: PROSPECTIVE

Eligibility Criteria

Inclusion Criteria

• Presence or evidence of prior serous retinal detachment documented on OCT involving the posterior pole unrelated to another disease process.
• At least 1 area of retinal pigment epithelium (RPE) alteration on FAF, SD-OCT, or infrared imaging.
• Subfoveal choroidal thickness (SFCT) of 300μm or more on SD enhanced depth imaging (EDI) OCT or SS-OCT for at least one eye.
• Patient 18 years or older.
• Willing to undergo pupil dilation, and protocol-required procedures for both eyes.

Exclusion Criteria

• Other maculopathy on clinical examination such as age-related macular degeneration (AMD).
• Media opacity such as cataract that could interfere with adequate acquisition of fundal images.
• Pregnant or nursing women.

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Chinese University of Hong Kong

OTHER

Sponsor Role: lead

Responsible Party

Dr Danny Siu-Chun NG

Associate Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Danny Siu-Chun Ng, FHKAM(Ophth)

Role: PRINCIPAL_INVESTIGATOR

Chinese University of Hong Kong

Locations

CUHK Eye Centre

Hong Kong, , Hong Kong

Hong Kong Eye Hospital

Hong Kong, , Hong Kong

Prince of Wales Hospital

Hong Kong, , Hong Kong

Countries

Hong Kong

References

Tsai DC, Chen SJ, Huang CC, Chou P, Chung CM, Huang PH, Lin SJ, Chen JW, Chen TJ, Leu HB, Chan WL. Epidemiology of idiopathic central serous chorioretinopathy in Taiwan, 2001-2006: a population-based study. PLoS One. 2013 Jun 24;8(6):e66858. doi: 10.1371/journal.pone.0066858. Print 2013.

Reference Type: BACKGROUND

PMID: 23826160 (View on PubMed)

Kitzmann AS, Pulido JS, Diehl NN, Hodge DO, Burke JP. The incidence of central serous chorioretinopathy in Olmsted County, Minnesota, 1980-2002. Ophthalmology. 2008 Jan;115(1):169-73. doi: 10.1016/j.ophtha.2007.02.032.

Reference Type: BACKGROUND

PMID: 18166410 (View on PubMed)

Daruich A, Matet A, Dirani A, Bousquet E, Zhao M, Farman N, Jaisser F, Behar-Cohen F. Central serous chorioretinopathy: Recent findings and new physiopathology hypothesis. Prog Retin Eye Res. 2015 Sep;48:82-118. doi: 10.1016/j.preteyeres.2015.05.003. Epub 2015 May 27.

Reference Type: BACKGROUND

PMID: 26026923 (View on PubMed)

Chan WM, Lai TY, Lai RY, Liu DT, Lam DS. Half-dose verteporfin photodynamic therapy for acute central serous chorioretinopathy: one-year results of a randomized controlled trial. Ophthalmology. 2008 Oct;115(10):1756-65. doi: 10.1016/j.ophtha.2008.04.014. Epub 2008 Jun 5.

Reference Type: BACKGROUND

PMID: 18538401 (View on PubMed)

Dansingani KK, Balaratnasingam C, Klufas MA, Sarraf D, Freund KB. Optical Coherence Tomography Angiography of Shallow Irregular Pigment Epithelial Detachments In Pachychoroid Spectrum Disease. Am J Ophthalmol. 2015 Dec;160(6):1243-1254.e2. doi: 10.1016/j.ajo.2015.08.028. Epub 2015 Aug 28.

Reference Type: BACKGROUND

PMID: 26319161 (View on PubMed)

Ng DS, Bakthavatsalam M, Lai FH, Cheung CY, Cheung GC, Tang FY, Tsang CW, Lai TY, Wong TY, Brelen ME. Classification of Exudative Age-Related Macular Degeneration With Pachyvessels on En Face Swept-Source Optical Coherence Tomography. Invest Ophthalmol Vis Sci. 2017 Feb 1;58(2):1054-1062. doi: 10.1167/iovs.16-20519.

Reference Type: BACKGROUND

PMID: 28195603 (View on PubMed)

Bakthavatsalam M, Ng DS, Lai FH, Tang FY, Brelen ME, Tsang CW, Lai TY, Cheung CY. Choroidal structures in polypoidal choroidal vasculopathy, neovascular age-related maculopathy, and healthy eyes determined by binarization of swept source optical coherence tomographic images. Graefes Arch Clin Exp Ophthalmol. 2017 May;255(5):935-943. doi: 10.1007/s00417-017-3591-3. Epub 2017 Feb 1.

Reference Type: BACKGROUND

PMID: 28150038 (View on PubMed)

Lai FH, Ng DS, Bakthavatsalam M, Chan VC, Young AL, Luk FO, Tsang CW, Brelen ME. A Multicenter Study on the Long-term Outcomes of Half-dose Photodynamic Therapy in Chronic Central Serous Chorioretinopathy. Am J Ophthalmol. 2016 Oct;170:91-99. doi: 10.1016/j.ajo.2016.07.026. Epub 2016 Aug 9.

Reference Type: BACKGROUND

PMID: 27519561 (View on PubMed)

Lai TY, Chan WM, Li H, Lai RY, Liu DT, Lam DS. Safety enhanced photodynamic therapy with half dose verteporfin for chronic central serous chorioretinopathy: a short term pilot study. Br J Ophthalmol. 2006 Jul;90(7):869-74. doi: 10.1136/bjo.2006.090282. Epub 2006 Apr 5.

Reference Type: BACKGROUND

PMID: 16597666 (View on PubMed)

Chan WM, Lai TY, Lai RY, Tang EW, Liu DT, Lam DS. Safety enhanced photodynamic therapy for chronic central serous chorioretinopathy: one-year results of a prospective study. Retina. 2008 Jan;28(1):85-93. doi: 10.1097/IAE.0b013e318156777f.

Reference Type: BACKGROUND

PMID: 18185143 (View on PubMed)

van Dijk EHC, Fauser S, Breukink MB, Blanco-Garavito R, Groenewoud JMM, Keunen JEE, Peters PJH, Dijkman G, Souied EH, MacLaren RE, Querques G, Downes SM, Hoyng CB, Boon CJF. Half-Dose Photodynamic Therapy versus High-Density Subthreshold Micropulse Laser Treatment in Patients with Chronic Central Serous Chorioretinopathy: The PLACE Trial. Ophthalmology. 2018 Oct;125(10):1547-1555. doi: 10.1016/j.ophtha.2018.04.021. Epub 2018 Jun 14.

Reference Type: BACKGROUND

PMID: 29776672 (View on PubMed)

Li WX, Muyese A, Xie ZT, Liu WH, Zhang B. Validity and reliability of the Chinese version of Morningness/Eveningness Questionnaire- 5 items(MEQ-5) in students of technical schools. Chinese Mental Health Journal. 2016; 6: 406-412.

Reference Type: BACKGROUND

Other Identifiers

CSCR POOH

Identifier Type: -

Identifier Source: org_study_id