NCT03275441|Unknown
Electroretinography: Investigation of a Protocol Change
SHERG
Investigation of a Protocol Change (Shorter Dark-adaptation) on the Electroretinogram (ERG) in an Adult Patient Population (SHERG)
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SHERG
Investigation of a Protocol Change (Shorter Dark-adaptation) on the Electroretinogram (ERG) in an Adult Patient Population (SHERG)
Sponsor study identifier
observational
262
0 countries
N/A
Study Start
October 2017
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Primary Completion
February 2018
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
February 2018
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
The study evaluates whether an eye test called an electroretinogram (ERG) can be shortened and still produce the same diagnostic results. The results of this study may allow test times to be reduced which will have benefits such as improved patient compliance during shorter testing and increased clinic efficiency.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
February 2018
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
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Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
March 22, 2017
Actual (reported)September 7, 2017
Actual (reported)October 2017
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
February 2018
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
February 2018
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Rate of classification for ERG following 10 minute dark adaptation
The rate of classification (normal vs abnormal) for testing conducted after 10 minutes of dark adaptation.
(During first & only study visit) Dark-adapted ERG test following 10 minutes of dark adaptation
Rate of classification (normal vs abnormal) for ERG following 20 minute dark adaptation
The rate of classification (normal vs abnormal) for testing conducted after 20 minutes of dark adaptation.
(During first & only study visit) Dark-adapted ERG test following 20 minutes of dark adaptation
Response amplitude after 10 minutes
(During first & only study visit) Dark-adapted ERG test following 10 minutes of dark adaptation
Response amplitude after 20 minutes
(During first & only study visit) Dark-adapted ERG test following 20 minutes of dark adaptation
Response timing
(During first & only study visit) Dark-adapted ERG test following 10 minutes of dark adaptation
Response timing
(During first & only study visit) Dark-adapted ERG test following 20 minutes of dark adaptation
Response variability
(During first & only study visit) Dark-adapted ERG test following 10 minutes of dark adaptation
Adult patients attending hospital for clinical visual electrophysiology.
An additional electroretinogram performed after 10 minutes of dark adaptation.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Adult patient population attending hospital for routine clinical electroretinography.
Ruth Hamilton, PhD
NHS Greater Glasgow and Clyde
Kirsten Graham, MSc
NHS Greater Glasgow and Clyde
Richard Hagan, PhD
NHS Royal Liverpool University Hospital
First Submitted
March 22, 2017
First Posted
September 7, 2017
Study Start
October 2017
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Primary Completion
February 2018
Estimated (date passed)Contact the study team to confirm eligibility.
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
February 2018
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
September 7, 2017
Record last verified: 2017-09
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Source: ClinicalTrials.gov.
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