Skip to main content
OpenTrials
Completed

NCT Number: NCT00846092

Near-infrared Light (NIR) Therapy for Diabetic Macular Edema: A Pilot Study

Summary of Study Rationale Near-infrared light (NIR) via light-emitting diodes (LED) treatment promotes retinal healing and improve visual function following high intensity laser retinal injury by augmenting cellular energy metabolism, enhances mitochondrial function, increases cytochrome C oxidase activity, stimulates antioxidant protective pathways, and promotes cell survival. LED directly benefits injured neurons in the retina, the lateral geniculate nucleus, and the visual cortex, where perception occurs. From a public health perspective, a Light-Emitting Diode (LED) Array study is important to conduct because it has been approved as a non-significant risk (NSR) device for treatment of eye disorders, it has a low cost of treatment, and it may serve as an effective, non-invasive alternative or adjunctive treatment to laser photocoagulation, the current standard of care for DME.

Study Objectives and Hypotheses

1. To determine the effects of short term (3 month) near-infrared light (NIR) therapy on anatomic and functional abnormalities of diabetic macular edema as assessed by visual acuity, optical coherence tomography, multifocal electroretinography (mERG) and fundus bimicroscopy. 2. To assess safety of short term near-infrared light therapy in eyes with diabetic macular edema.

Completed

Looking for future studies?

Notify Me

Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Medical College of Wisconsin

Milwaukee, Wisconsin, 53226, United States

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Age >= 18 years Subjects <18 years old are not being included because DME is so rare in this age group that the diagnosis of DME may be questionable.
  • Diagnosis of diabetes mellitus (type 1 or type 2)
  • Any one of the following will be considered to be sufficient evidence that diabetes is present: Current regular use of insulin for the treatment of diabetes Current regular use of oral anti-hyperglycemia agents for the treatment of diabetes Documented diabetes by ADA and/or WHO criteria (see Procedures Manual for definitions)
  • At least one eye meets the study eye criteria.
  • Fellow eye meets criteria.
  • Able and willing to provide informed consent.
  • Any candidate identified by a study investigator as being able to successfully tolerate a 3 month deferral of laser photocoagulation.

Exclusion criteria

  • Significant renal disease, defined as a history of chronic renal failure requiring dialysis or kidney transplant.
  • Subjects in poor glycemic control who, within the last 4 months, initiated intensive insulin treatment (a pump or multiple daily injections) or plan to do so in the next 4 months should not be enrolled.
  • Participation in an investigational trial within 30 days of NIR participation that involved treatment with any drug that has not received regulatory approval at the time of study entry.
  • Note: subjects cannot receive another investigational drug while participating in the study during the first 6 months...
  • Major surgery within 28 days prior to participation or major surgery planned during the next 6 months.
  • Major surgery is defined as a surgical procedure that is more extensive than fine needle biopsy/aspiration, placement of a central venous access device, removal/biopsy of a skin lesion, or placement of a peripheral venous catheter.
  • Subject is expecting to move out of the area during the 6 months of the study.

Treatment and study plan

Warp 10 LED Device

Device

Study Subjects will take the Warp 10 (LED) home and treat twice per day for three months

Other names: Warp 10

Near-infrared light (NIR)

Device
  • Subjects will be exposed to light emitted from LED's at wavelengths of 670 nm (+/-15nm) with a minimum exposure of 4 J/cm2 (4.0 - 7.68J/cm2). This is accomplished by applying the 50 mW/cm2 (50 - 80 mw/cm2) LED-generated light to the study eye.
  • Treatments involve application of the LED-generated light for 80 seconds, twice daily.

Other names: Warp 10 LED's

Primary outcomes

  1. Excess retinal thickness on OCT at 1 month, 3 months and 6 months. goal = reduce excess thickness by at least 50%

    Time frame: 1 month, 3 months and 6 months

Sponsors and collaborators

Lead sponsor

Medical College of Wisconsin

Other

Collaborators

  • The New York Eye & Ear Infirmary

Registry information

Official study title

Phase 1 Study To Determine the Effects of Short Term Near-infrared Light (NIR) Therapy on Anatomic and Functional Abnormalities of Diabetic Macular Edema, and Assess Safety of Short Term Near-infrared Light Therapy in Eyes With Diabetic Macular Edema.

Acronym: NIR

Important dates

Study start
2007
Primary completion
2013
Study completion
2013
First posted
Feb 18, 2009
Registry last updated
Sep 23, 2013

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.

Published trials that share one or more normalized conditions with this study.