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Completed

NCT Number: NCT00940407

Toronto and Oak Ridge Photobiomodulation Study for Dry Age Related Macular Degeneration

The purpose of this study is to evaluate clinical outcomes of Photobiomodulation treatment on patients with dry Age Related Macular Degeneration (AMD).

Photobiomodulation is the use of non thermal, non laser light of specific wavelengths and energy directly on the eye to improve retinal function and delay AMD progression.

This is a prospective 2 center phase 2 clinical pilot study with no placebo group.

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Key information

Age range

50 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Dr Graham Merry, Toronto, Ontario, Canada

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About this study

Dry AMD is a progressive sight threatening disease affecting central acute vision. Dry AMD may progress to the wet form where leaking and bleeding in the retina can cause sudden severe visual loss.

There are no proven active treatments for Dry AMD. Dry AMD accounts for over 80% of AMD cases.

There are estimated to be 30 million people afflicted with AMD by the year 2020 in North America.

Photobiomodulation in this study is utilised by using two devices that are already approved for other indications by the FDA and Health Canada.

Photobiomodulation is a novel clinical application for treating dry AMD. As this is a pilot study there is no placebo or control group.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • patients of both genders aged 50 years inclusive and over
  • patients must have DRY macular degeneration in the study eye
  • best corrected visual acuity between 20/40 and 20/200
  • patients must be competent to sign and have signed a consent form before study entry

Exclusion criteria

  • visually significant cataracts
  • presence of a visually significant posterior capsule if prior cataract has been performed
  • any visually significant disease process in any ocular structure that would affect vision unrelated to macular degeneration
  • a patient can be enrolled if only one of their eyes meets the criteria
  • patients with severe clinically significant medical disease or unstable medical conditions including cardiovascular, hepatic, renal, neurological, endocrine, gastrointestinal, CNS or life threatening disease or current malignancy at the discretion of the investigators
  • patients who are non-ambulatory or bed ridden
  • female patients who are pregnant or of childbearing potential as the effects of PBM on the developing fetus are unknown
  • patients with a history of epilepsy
  • patients with a history of alcohol, drug or substance abuse in the past 6 months
  • patients deemed uncooperative or non compliant with the requirements of the protocol
  • patients who have received any investigational drug or treatment within 30 days prior to study entry
  • patients who are not competent to understand and sign consent form

Treatment and study plan

Photobiomodulation (Gentlewaves, Warp 10)

Device

Two separate light emitting devices that are already approved for other indications are used. Treatment will consist of 18 treatments lasting approximately two minutes per treatment.

Other names: Gentlewaves, Warp 10

Primary outcomes

  1. Change in ETDRS Visual Acuity

    Time frame: prior to intervention and 3 monthly intervals to 1 year

Secondary outcomes

  1. change in contrast sensitivity

    Time frame: prior to intervention and 3 monthly to 1 year

  2. changes in retinal function parameters from Nidek MP1 assessment

    Time frame: prior to intervention and 3 monthly to 1 year

Sponsors and collaborators

Lead sponsor

Merry, Graham, M.D.

Indiv

Registry information

Official study title

A Pilot Study to Evaluate Clinical Outcomes of Photobiomodulation in Patients With Age Related Macular Degeneration of the Dry Type.

Acronym: TORPA

Important dates

Study start
2009
Primary completion
2011
Study completion
2011
First posted
Jul 16, 2009
Registry last updated
Nov 18, 2011

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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