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Age Related Macular DegenerationNCT01272076

Cirrus HD-OCT Measurement of Area of Increased Light Penetration Under the Retinal Pigment Epithelium (RPE)

An observational study of Age Related Macular Degeneration and Geographic Atrophy, run by Carl Zeiss Meditec, Inc. at 2 sites in United States.

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

The objective of this study is to compare Cirrus HD-OCT automated measurements of the illumination area under the retinal pigment epithelium (RPE) to expert manual measurements of areas of hypofluorescence typical of geographic atrophy in fundus autofluorescence (FAF) images. Read more about this study

Who is it for?
Ages 50 years and older
How many people
85 participants
Where
2 sitesUnited States
Study dates
Jan 2011to Feb 2011
Phase
Observational
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 50 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Primary Care Clinic

Who may be able to join

  • Males or females 50 years of age and older diagnosed to have advanced dry AMD with geographic atrophy.
  • Geographic atrophy lesions should:
  • Not be greater than 5 mm at the widest diameter. The entire lesion(s) should fit into the 6x6 mm scan area of the Cirrus HD-OCT.
  • Not be smaller than 1.25 mm2.
  • Not be confluent with peri-papillary atrophy.
  • Not be combined with other lesions such as CNVs.
  • Able and willing to make the required study visit.
  • Able and willing to give consent and follow study instructions.

Who cannot join

  • History of retinal surgery, laser photocoagulation, and/or radiation therapy to the eye.
  • Evidence of other retinal diseases of the eye, including wet AMD, diabetic retinopathy, diabetic macular edema, or significant vitreomacular traction upon dilated examination, or upon evaluation of retinal photos.
  • Thick media opacity or inability to fixate that precludes obtaining acceptable scans.
  • Concomitant use of hydrochloroquine and chloroquine.
  • Unable to make the required study visit.
  • Unable to give consent or follow study instructions.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • TLC Eyecare and Laser Centers

    Jackson, Michigan, 49202

  • East Bay Retina Consultants, Inc.

    Oakland, California, 94609

Other trials in United States

About this study

The objective of this study is to compare Cirrus HD-OCT automated measurements of the illumination area under the retinal pigment epithelium (RPE) to expert manual measurements of areas of hypofluorescence typical of geographic atrophy in fundus autofluorescence (FAF) images.

Read the detailed description

Specific Objectives:

  1. To compare Cirrus HD-OCT automated measurements of the illumination area under the RPE to expert manual measurements of areas of hypofluorescence typical of geographic atrophy in fundus autofluorescence (FAF) images.
  2. To describe the differences and similarities between Cirrus HD-OCT and fundus autofluorescence images of subjects with geographic atrophy secondary to dry age-related macular degeneration (AMD).
  3. To determine the clinical factors that affect the Cirrus HD-OCT automated measurements of the illumination area under the RPE.
Keywords
Age Related Macular Degeneration, Geographic Atrophy, Imaging, OCT
Medical subject headings
Macular Degeneration, Geographic Atrophy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT01272076
Study groupRoleWhat they receive
Dry AMD and geographic atrophyPatients diagnosed with dry AMD and geographic atrophy

What is being measured

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

  1. Difference in mm Squared of Cirrus HD-OCT Automated Measurements of the Illumination Areaa Under the RPE to Expert Manual Measurement of Areas of Hypofluorescence Typical of Geographic Atrophy (GA).

    In retinal areas with atrophy, light emitted from the Cirrus penetrates the sclera and choroid which are more reflecting compared with the Retinal Pigment Epithelium (RPE). The areas with higher illumination are associated with areas of Geographic Atrophy (GA), and allow to quantify how big is the area of atrophy. The study will assess the difference between Cirrus HD-OCT measurements of areas of increased illumination under the RPE to hypofluorescence areas on fundus photos as assessed manually by retina specialists.

    Measured: August 2011

Timeline

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

  1. First posted7 Jan 2011 (estimated)
  2. Study startJan 2011
  3. Primary completionFeb 2011
  4. Study completionFeb 2011

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
Prospective
Enrolment
85 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01272076
Sponsor's protocol ID
HD-OCT-GA-2010-1-v2
Status last verified
Dec 2013
First submitted
5 Jan 2011
Last updated
20 Jan 2014
Data monitoring committee
Yes

Publications

  • Schmitz-Valckenberg S, Fleckenstein M, Scholl HP, Holz FG. Fundus autofluorescence and progression of age-related macular degeneration. Surv Ophthalmol. 2009 Jan-Feb;54(1):96-117. doi: 10.1016/j.survophthal.2008.10.004.

    PubMed 19171212
  • Holz FG, Bindewald-Wittich A, Fleckenstein M, Dreyhaupt J, Scholl HP, Schmitz-Valckenberg S; FAM-Study Group. Progression of geographic atrophy and impact of fundus autofluorescence patterns in age-related macular degeneration. Am J Ophthalmol. 2007 Mar;143(3):463-72. doi: 10.1016/j.ajo.2006.11.041. Epub 2006 Dec 22.

    PubMed 17239336
  • Hwang JC, Chan JW, Chang S, Smith RT. Predictive value of fundus autofluorescence for development of geographic atrophy in age-related macular degeneration. Invest Ophthalmol Vis Sci. 2006 Jun;47(6):2655-61. doi: 10.1167/iovs.05-1027.

    PubMed 16723483
  • Lujan BJ, Rosenfeld PJ, Gregori G, Wang F, Knighton RW, Feuer WJ, Puliafito CA. Spectral domain optical coherence tomographic imaging of geographic atrophy. Ophthalmic Surg Lasers Imaging. 2009 Mar-Apr;40(2):96-101. doi: 10.3928/15428877-20090301-16.

    PubMed 19320296
  • Sunness JS, Margalit E, Srikumaran D, Applegate CA, Tian Y, Perry D, Hawkins BS, Bressler NM. The long-term natural history of geographic atrophy from age-related macular degeneration: enlargement of atrophy and implications for interventional clinical trials. Ophthalmology. 2007 Feb;114(2):271-7. doi: 10.1016/j.ophtha.2006.09.016.

    PubMed 17270676
  • Yehoshua Z, Rosenfeld PJ, Gregori G, Feuer WJ, Falcao M, Lujan BJ, Puliafito C. Progression of geographic atrophy in age-related macular degeneration imaged with spectral domain optical coherence tomography. Ophthalmology. 2011 Apr;118(4):679-86. doi: 10.1016/j.ophtha.2010.08.018. Epub 2010 Oct 29.

    PubMed 21035861

Questions about this trial

What is this clinical trial studying?

An observational study of Age Related Macular Degeneration and Geographic Atrophy, run by Carl Zeiss Meditec, Inc. at 2 sites in United States.

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 8 inclusion and 6 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 20 Jan 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. 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?

Yes. Results are posted in the registry (first posted 14 Nov 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Difference in mm Squared of Cirrus HD-OCT Automated Measurements of the Illumination Areaa Under the RPE to Expert Manual Measurement of Areas of Hypofluorescence Typical of Geographic Atrophy (GA). (time frame: August 2011). 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 NCT01272076, which also lists 6 linked publications.

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 20 Jan 2014.

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