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NCT04396002 · ClinicalTrials.gov registry record

Glaucoma, Visual Field Loss, and Their Association With Life Space in Older Adults

A clinical trial of Primary Open Angle Glaucoma, sponsored by University of Alabama at Birmingham.

Recruiting
Registry status
100
Enrollment target
1
Study location

NCT04396002: Recruiting study of Primary Open Angle Glaucoma, sponsored by University of Alabama at Birmingham.

NCT04396002 is a study of Primary Open Angle Glaucoma that is actively recruiting participants, run by University of Alabama at Birmingham. The registered enrollment target is 100 participants, below the 289-participant average among 19 other Primary Open Angle Glaucoma trials with a reported enrollment target (65% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04396002, a study of Primary Open Angle Glaucoma, is actively recruiting participants, sponsored by University of Alabama at Birmingham.

RECRUITING
Registry status
100 participants
Enrollment target
1
Study location

Study Summary

Mobility refers to a person's purposeful movement through the environment from one place to another and can be conceptualized as a continuum from bed bound (immobility) on one extreme to making excursions to distant locations on the other extreme. Primary open-angle glaucoma (POAG) is a chronic, progressive optic neuropathy that can lead to gradual loss of vision in the peripheral field and central vision. Older adults with POAG have an increased risk for motor vehicle collisions and falls. Moreover, existing studies suggest that patients with POAG exhibit more postural sway while standing as measured by a balance platform and also tend to walk more slowly than those who are normally sighted and free of ocular disease. While these disturbances likely influence mobility, there has been little research directly assessing the impact of POAG on mobility. This study will assess the impact of POAG on life space (one aspect of mobility) and will determine whether difficulties with life space are associated with difficulties experienced under conditions of dim lighting.

Primary Outcome

The Life Space Questionnaire is a 9-item questionnaire that assesses how much a person gets out and about and the spatial extent of the person's typical life space, i.e., what is the usual range of places in which the person engages in activities within the designated time frame. Patients are asked to respond either Yes or No.

Interventions

  • DIAGNOSTIC_TEST Life Space Questionnaire
  • DIAGNOSTIC_TEST Low Luminance Questionnaire
  • DIAGNOSTIC_TEST Contrast sensitivity under dim illumination
  • DIAGNOSTIC_TEST Visual field under dim illumination (MAIA)
  • DIAGNOSTIC_TEST Macular Pigment Optical Density (MPOD)

Study Locations (1)

Alabama

  • University of Alabama Birmingham - Birmingham

Trial Details

FieldValue
Enrollment Target 100 participants
Start Date 2019-06-01
Est. Completion 2026-05-30
University of Alabama at Birmingham

1,160 total trials

What NCT04396002 shows while recruiting

NCT04396002 is an observational study that tracks outcomes without assigning an intervention. The registered 100 participants enrollment target is mid-sized for trials with a published cap, below the 289-participant average among 19 other Primary Open Angle Glaucoma trials with a reported enrollment target (65% lower).

The record links to 1 condition, with Primary Open Angle Glaucoma appearing as the primary indexed condition, and to 5 interventions - of which Life Space Questionnaire is the first listed.

NCT04396002 reports a single indexed study location in Alabama.

Frequently Asked Questions

What is clinical trial NCT04396002 about?

NCT04396002 is a clinical study titled "Glaucoma, Visual Field Loss, and Their Association With Life Space in Older Adults". Mobility refers to a person's purposeful movement through the environment from one place to another and can be conceptualized as a continuum from bed bound (immobility) on one extreme to making excursions to distant locations on the other extreme. Primary open-angle glaucoma (POAG) is a chronic, pro...

What is the current status of trial NCT04396002?

This trial is currently recruiting. The enrollment target is 100 participants. The study started on 2019-06-01. Estimated completion is 2026-05-30.

What conditions does trial NCT04396002 study?

This clinical trial studies the following conditions: Primary Open Angle Glaucoma.

What interventions are being tested in trial NCT04396002?

The interventions under investigation include: Life Space Questionnaire (DIAGNOSTIC_TEST), Low Luminance Questionnaire (DIAGNOSTIC_TEST), Contrast sensitivity under dim illumination (DIAGNOSTIC_TEST), Visual field under dim illumination (MAIA) (DIAGNOSTIC_TEST), Macular Pigment Optical Density (MPOD) (DIAGNOSTIC_TEST).

Who is sponsoring clinical trial NCT04396002?

This trial is sponsored by University of Alabama at Birmingham, which has 1,160 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT04396002 being conducted?

This trial has 1 study location across Alabama. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Primary Open Angle Glaucoma

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT04396002's enrollment target sits among peer trials

100 12th of 19 higher than 8 of 19 other Primary Open Angle Glaucoma trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Primary Open Angle Glaucoma trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT04396002, the US trial registry maintained by the National Library of Medicine. NCT04396002 (mid enrollment · single site footprint · recruiting) retrieved and formatted by PlainTrial, see methodology.