Near-infrared Light (NIR) Therapy for Diabetic Macular Edema: A Pilot Study
NCT ID: NCT00846092
Last Updated: 2013-09-23
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
PHASE1
4 participants
INTERVENTIONAL
2007-11-30
2013-02-28
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
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.
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Keywords
Explore important study keywords that can help with search, categorization, and topic discovery.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
NON_RANDOMIZED
SINGLE_GROUP
TREATMENT
NONE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
Device
* The study will require 20 subjects.
* Each subject will have one "study eye" that will be designated for treatment.
* Subjects will be exposed to light emitted from Warp 10 LED's (Quantum Devices, Barneveld, WI) 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.
Primary efficacy and toxicity outcomes are determined by measuring excess retinal thickness via Ocular Coherence Tomography at 1 month, 3 months, and 6 months, prior to conclusion of the study.
• This protocol will be stopped if, at any point in the study, a 50% increase in excess retinal thickness is demonstrated via OCT in 25% of subjects in the experimental group.
Warp 10 LED Device
Study Subjects will take the Warp 10 (LED) home and treat twice per day for three months
Near-infrared light (NIR)
* 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.
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
Warp 10 LED Device
Study Subjects will take the Warp 10 (LED) home and treat twice per day for three months
Near-infrared light (NIR)
* 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 Intervention Names
Discover alternative or legacy names that may be used to describe the listed interventions across different sources.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
2. 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)
3. At least one eye meets the study eye criteria.
4. Fellow eye meets criteria.
5. Able and willing to provide informed consent.
6. Any candidate identified by a study investigator as being able to successfully tolerate a 3 month deferral of laser photocoagulation.
Exclusion Criteria
8. 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.
9. 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...
10. 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.
11. Subject is expecting to move out of the area during the 6 months of the study.
18 Years
ALL
No
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
The New York Eye & Ear Infirmary
OTHER
Medical College of Wisconsin
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Harry T Whelan, MD
PI
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Harry T Whelan, MD
Role: PRINCIPAL_INVESTIGATOR
Medical College of Wisconsin
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
Medical College of Wisconsin
Milwaukee, Wisconsin, United States
Countries
Review the countries where the study has at least one active or historical site.
References
Explore related publications, articles, or registry entries linked to this study.
Klein R, Klein BE, Moss SE, Davis MD, DeMets DL. The Wisconsin epidemiologic study of diabetic retinopathy. IV. Diabetic macular edema. Ophthalmology. 1984 Dec;91(12):1464-74. doi: 10.1016/s0161-6420(84)34102-1.
Moss SE, Klein R, Klein BE. Ten-year incidence of visual loss in a diabetic population. Ophthalmology. 1994 Jun;101(6):1061-70. doi: 10.1016/s0161-6420(94)31217-6.
Moss SE, Klein R, Klein BE. The 14-year incidence of visual loss in a diabetic population. Ophthalmology. 1998 Jun;105(6):998-1003. doi: 10.1016/S0161-6420(98)96025-0.
Early photocoagulation for diabetic retinopathy. ETDRS report number 9. Early Treatment Diabetic Retinopathy Study Research Group. Ophthalmology. 1991 May;98(5 Suppl):766-85.
Diabetes Control and Complications Trial Research Group; Nathan DM, Genuth S, Lachin J, Cleary P, Crofford O, Davis M, Rand L, Siebert C. The effect of intensive treatment of diabetes on the development and progression of long-term complications in insulin-dependent diabetes mellitus. N Engl J Med. 1993 Sep 30;329(14):977-86. doi: 10.1056/NEJM199309303291401.
Intensive blood-glucose control with sulphonylureas or insulin compared with conventional treatment and risk of complications in patients with type 2 diabetes (UKPDS 33). UK Prospective Diabetes Study (UKPDS) Group. Lancet. 1998 Sep 12;352(9131):837-53.
Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications Research Group; Lachin JM, Genuth S, Cleary P, Davis MD, Nathan DM. Retinopathy and nephropathy in patients with type 1 diabetes four years after a trial of intensive therapy. N Engl J Med. 2000 Feb 10;342(6):381-9. doi: 10.1056/NEJM200002103420603.
Whelan HT, Smits RL Jr, Buchman EV, Whelan NT, Turner SG, Margolis DA, Cevenini V, Stinson H, Ignatius R, Martin T, Cwiklinski J, Philippi AF, Graf WR, Hodgson B, Gould L, Kane M, Chen G, Caviness J. Effect of NASA light-emitting diode irradiation on wound healing. J Clin Laser Med Surg. 2001 Dec;19(6):305-14. doi: 10.1089/104454701753342758.
Beauvoit B, Kitai T, Chance B. Contribution of the mitochondrial compartment to the optical properties of the rat liver: a theoretical and practical approach. Biophys J. 1994 Dec;67(6):2501-10. doi: 10.1016/S0006-3495(94)80740-4.
Karu T. Primary and secondary mechanisms of action of visible to near-IR radiation on cells. J Photochem Photobiol B. 1999 Mar;49(1):1-17. doi: 10.1016/S1011-1344(98)00219-X.
Wong-Riley MT, Liang HL, Eells JT, Chance B, Henry MM, Buchmann E, Kane M, Whelan HT. Photobiomodulation directly benefits primary neurons functionally inactivated by toxins: role of cytochrome c oxidase. J Biol Chem. 2005 Feb 11;280(6):4761-71. doi: 10.1074/jbc.M409650200. Epub 2004 Nov 22.
Liang HL, Whelan HT, Eells JT, Meng H, Buchmann E, Lerch-Gaggl A, Wong-Riley M. Photobiomodulation partially rescues visual cortical neurons from cyanide-induced apoptosis. Neuroscience. 2006 May 12;139(2):639-49. doi: 10.1016/j.neuroscience.2005.12.047. Epub 2006 Feb 7.
Eells JT, Wong-Riley MT, VerHoeve J, Henry M, Buchman EV, Kane MP, Gould LJ, Das R, Jett M, Hodgson BD, Margolis D, Whelan HT. Mitochondrial signal transduction in accelerated wound and retinal healing by near-infrared light therapy. Mitochondrion. 2004 Sep;4(5-6):559-67. doi: 10.1016/j.mito.2004.07.033.
Whelan HT, Connelly JF, Hodgson BD, Barbeau L, Post AC, Bullard G, Buchmann EV, Kane M, Whelan NT, Warwick A, Margolis D. NASA light-emitting diodes for the prevention of oral mucositis in pediatric bone marrow transplant patients. J Clin Laser Med Surg. 2002 Dec;20(6):319-24. doi: 10.1089/104454702320901107.
Whelan HT, Buchmann EV, Dhokalia A, Kane MP, Whelan NT, Wong-Riley MT, Eells JT, Gould LJ, Hammamieh R, Das R, Jett M. Effect of NASA light-emitting diode irradiation on molecular changes for wound healing in diabetic mice. J Clin Laser Med Surg. 2003 Apr;21(2):67-74. doi: 10.1089/104454703765035484.
Wong-Riley MT, Bai X, Buchmann E, Whelan HT. Light-emitting diode treatment reverses the effect of TTX on cytochrome oxidase in neurons. Neuroreport. 2001 Oct 8;12(14):3033-7. doi: 10.1097/00001756-200110080-00011.
Eells JT, Henry MM, Summerfelt P, Wong-Riley MT, Buchmann EV, Kane M, Whelan NT, Whelan HT. Therapeutic photobiomodulation for methanol-induced retinal toxicity. Proc Natl Acad Sci U S A. 2003 Mar 18;100(6):3439-44. doi: 10.1073/pnas.0534746100. Epub 2003 Mar 7.
Kowluru RA, Atasi L, Ho YS. Role of mitochondrial superoxide dismutase in the development of diabetic retinopathy. Invest Ophthalmol Vis Sci. 2006 Apr;47(4):1594-9. doi: 10.1167/iovs.05-1276.
Kowluru RA, Kowluru V, Xiong Y, Ho YS. Overexpression of mitochondrial superoxide dismutase in mice protects the retina from diabetes-induced oxidative stress. Free Radic Biol Med. 2006 Oct 15;41(8):1191-6. doi: 10.1016/j.freeradbiomed.2006.01.012. Epub 2006 Feb 6.
Nyengaard JR, Ido Y, Kilo C, Williamson JR. Interactions between hyperglycemia and hypoxia: implications for diabetic retinopathy. Diabetes. 2004 Nov;53(11):2931-8. doi: 10.2337/diabetes.53.11.2931.
Obrosova IG, Stevens MJ, Lang HJ. Diabetes-induced changes in retinal NAD-redox status: pharmacological modulation and implications for pathogenesis of diabetic retinopathy. Pharmacology. 2001;62(3):172-80. doi: 10.1159/000056091.
Weinberger D, Axer-Siegel R, Landau D, Yassur Y. Retinal thickness variation in the diabetic patient measured by the retinal thickness analyser. Br J Ophthalmol. 1998 Sep;82(9):1003-6. doi: 10.1136/bjo.82.9.1003.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
NIR for Diabetic Maculopathy
Identifier Type: -
Identifier Source: org_study_id