ClinicalTrials.gg
TerminatedNCT00902785Updated Nov 10, 2010

A Study Of Early Markers Of Choroidal Neovascularization

An observational study in Choroidal Neovascularization (CNV), Age-related Macular Degeneration (AMD) and Early Markers, sponsored by Pfizer. Terminated at 3 sites in 3 countries. Open to participants aged 50 Years and older. Per ClinicalTrials.gov, last updated 2010-11-10.

Sponsored by Pfizer · Observational

Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
100
Ages
50 Years and older
Sex
All
01

Study summary

Identify early markers of choroidal neovascularization (CNV) in the fellow eye of a patient with CNV in the other eye due to age-related macular degeneration with the expectation of being able to identify patients in need of intervention.

Read the detailed description

CNV in one eye and dry AMD in the other

02

Conditions studied

  • Choroidal Neovascularization (CNV)
  • Age-related Macular Degeneration (AMD)
  • Early Markers

Keywords

  • exploratory
  • observational
  • non-interventional study age-related macular degeneration (AMD) choroidal neovascularization (CNV)
03

In context

Choroidal Neovascularization

193 studies on the registry are indexed under Choroidal Neovascularization; 12 are open to participants now.

This study's planned enrollment of 100 is close to the median of 98 across 37 observational studies indexed under Choroidal Neovascularization.

Browse Choroidal Neovascularization studies →

Lead sponsor

Pfizer is the lead sponsor of 3,323 studies on the registry; 145 are open to participants now.

Of its 597 completed or terminated interventional studies of FDA-regulated products, 391 (65%) have results posted.

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

04

Who can participate

Ages eligible
50 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

  • age-related macular degeneration (AMD)
  • choroidal neovascularization (CNV)

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Sub-, extra- or juxta-foveal choroidal neovascularization (CNV) or macular scar due to AMD in the non-study eye.
  • No CNV or geographic atrophy in the study eye.
  • Best corrected visual acuity in the study eye of greater than 20/40 or better than 70 ETDRS letters.
  • Sufficiently clear ocular media and adequate pupillary dilatation to permit good quality fundus imaging of the study eye.
  • Subjects of either sex, aged 50 years.
  • Evidence of a signed and dated informed consent document indicating that the subject (or a legally acceptable representative) has been informed of all pertinent aspects of the trial.
  • Willing and able to comply with scheduled visits, laboratory tests, and other trial procedures.

Exclusion criteria

Exclusion Criteria:

  • Subjects presenting with any of the following will not be included in the study:
  • Evidence of manifest CNV by FA, color photography or ICG angiography in the study eye.
  • Any prior treatment for CNV to the study eye (excluding vitamins and AREDS formula).
  • Significant media opacities, including cataract, which might interfere with visual acuity assessments, or fundus imaging in the study eye. Subjects should not be entered if there is likelihood that they will require cataract surgery within the following 2 years.
  • Presence of other causes of choroidal neovascularization in the fellow eye, including pathologic myopia (spherical equivalent of -8 diopters or more negative, or axial length of 25 mm or more), the ocular histoplasmosis syndrome, angioid streaks, choroidal rupture, and multifocal choroiditis.
  • Any progressive eye disease other than AMD (eg, glaucoma, diabetic retinopathy) in the study eye.
  • Presence of subretinal hemorrhage, serous or hemorrhagic pigment epithelial detachments, subretinal fibrosis or pigment epithelial tears or rips in the study eye.
  • Any medical condition that would interfere with the patient's ability to complete the trial.
  • Concurrent enrollment in any other observational or interventional clinical study.
  • Any treatment with an ocular or systemic investigational agent in the past 60 days for any medical condition.
  • Known serious allergies to the dye used in fluorescein angiography or ICG.
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
100 participants (estimated)

Groups and cohorts

  • no drug

    no drug

    Other: no drug

Interventions

  • Otherno drug

    observational no drug

06

What researchers measure

Primary outcomes

  1. Identify the sequence of change in the chorioretinal interface during the development of CNV and the progression from dry to neovascular AMD.

    Time frame: 2 years

07

Study locations

3 sites
  • Pfizer Investigational Site
    Milan, 20157, Italy
  • Pfizer Investigational Site
    Coimbra, 3000-354, Portugal
  • Pfizer Investigational Site
    Belfast, BT12 6BA, United Kingdom
08

References and documents

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 10, 2010, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00902785
Lead sponsor
Pfizer
First posted
May 15, 2009
Start date
Mar 2008
Primary completion
May 2010
Completion
May 2010
Last update
Nov 10, 2010

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Nov 2010. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion