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Inherited Retinal Dystrophy Primarily Involving Sensory RetinaNCT03613948

Study on the Effects of Mutations Under Inherited Retinal Disease in Korean

An observational study of Inherited Retinal Dystrophy Primarily Involving Sensory Retina and Inherited Retinal Dystrophy Primarily Involving Retinal Pigment Epithelium, run by Gangnam Severance Hospital at 1 site in South Korea.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To develop comprehensive genetic maps of inherited retinal diseases in Korean Establishment of comprehensive genetic database in Koreans with inherited retinal diseases including frequently mutated genes, genotype-phenotype correlations, and visual prognosis." Read more about this study

Who is it for?
Ages 4 months to 75 years
How many people
280 participants
Where
1 siteSouth Korea
Study dates
10 Apr 2018to 20 Jan 2021
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 4 months to 75 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: "Subject with inherited retinal disease, age between 6 months and 75 years who have not receive molecular genetic testing"

Who may be able to join

  • Inherited retinal disease
  • Age between 4 months and 75 years
  • Subject who has clinically confirmed visual impairment including night blindness or photophobia. Subject should meet one of the following criteria
  • pigmentary retinopathy in both eyes
  • reduced response in photopic or scotopic electroretinogram in both eyes
  • photoreceptor degeneration in optical coherence tomography in both eyes

Who cannot join

  • unilateral retinal disease
  • Subject who had previously confirmed genetic testing
  • Age less than 4 months or more than 75 years
  • When congenital infection or trauma are suspicious for the cause of retinal disease
  • When age-related macular degeneration, myopic degeneration, autoimmune origin are suspicious for the cause of retinal disease
  • No visual impairment or normal electroretinogram (e.g., benign fleck)
  • Illiterate subject who can not understand informed consent
  • Foreigners

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Gangnam Severance Hospital

    Seoul, 06230

Other trials in South Korea

About this study

To develop comprehensive genetic maps of inherited retinal diseases in Korean

  • Establishment of comprehensive genetic database in Koreans with inherited retinal diseases including frequently mutated genes, genotype-phenotype correlations, and visual prognosis."
Read the detailed description

Group/ Cohort Label : Subject with age between 6 months and 65 years who have not receive molecular genetic testing Group / Cohort Description : Consecutive subjects with inherited retinal disease who are willing to do genetic testing using whole exome sequencing (n=265) and whole genome sequencing (n=15) and agree to informed consent of the study

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Diagnostic rate of whole exome sequencing (n=265) in Koreans with inherited retinal disease

    patients were grouped in 1) probable molecular diagnosis: patients with pathogenic or likely pathogenic disease-associated variant(s), 2) possible molecular diagnosis: patients with 2 heterozygous mutations without segregation analysis, or patients harboring a single pathogenic or likely pathogenic disease-associated variant in a gene linked with recessive traits, provided the patient phenotype matches the known spectrum of clinical features for this gene, 3) unsolved: all other patients for which no pathogenic or likely pathogenic disease-associated variants were detected.

    Measured: 3 years (until December 31, 2020)

Secondary outcomes (1)
  1. Diagnostic rate of whole genome sequencing (n=15) in Koreans with inherited retinal disease

    patients were grouped in 1) probable molecular diagnosis: patients with pathogenic or likely pathogenic disease-associated variant(s), 2) possible molecular diagnosis: patients with 2 heterozygous mutations without segregation analysis, or patients harboring a single pathogenic or likely pathogenic disease-associated variant in a gene linked with recessive traits, provided the patient phenotype matches the known spectrum of clinical features for this gene, 3) unsolved: all other patients for which no pathogenic or likely pathogenic disease-associated variants were detected.

    Measured: 3 years (until December 31, 2020)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Aug 2018
  2. Study start10 Apr 2018
  3. Primary completion20 Jan 2021
  4. Study completion20 Jan 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Cross-sectional
Enrolment
280 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03613948
Sponsor's protocol ID
3-2018-0026
Status last verified
Oct 2021
First submitted
10 Apr 2018
Last updated
25 Oct 2021
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Stone EM, Andorf JL, Whitmore SS, DeLuca AP, Giacalone JC, Streb LM, Braun TA, Mullins RF, Scheetz TE, Sheffield VC, Tucker BA. Clinically Focused Molecular Investigation of 1000 Consecutive Families with Inherited Retinal Disease. Ophthalmology. 2017 Sep;124(9):1314-1331. doi: 10.1016/j.ophtha.2017.04.008. Epub 2017 May 27.

    PubMed 28559085

Questions about this trial

What is this clinical trial studying?

An observational study of Inherited Retinal Dystrophy Primarily Involving Sensory Retina and Inherited Retinal Dystrophy Primarily Involving Retinal Pigment Epithelium, run by Gangnam Severance Hospital at 1 site in South Korea.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 25 Oct 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Diagnostic rate of whole exome sequencing (n=265) in Koreans with inherited retinal disease (time frame: 3 years (until December 31, 2020)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03613948, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Oct 2021.

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