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NCT04065490Completed

Study of Photobiomodulation to Treat Dry Age-Related Macular Degeneration (LIGHTSITE III)

A Double-Masked, Randomized, Sham-Controlled, Parallel Group, Multi-Center Study to Assess the Safety and Efficacy of Photobiomodulation (PBM) in Subjects With Dry Age-Related Macular Degeneration (AMD) (LIGHTSITE III)

Source: ClinicalTrials.gov · Last updated 8 Oct 2026

Brief summary (registry, in English)

This LIGHTSITE III study is a double-masked, sham-controlled, parallel design, prospective multi-site study for the use of PBM as a treatment for visual impairment in subjects with dry AMD. Alcon Research, LLC, acquired LumiThera in September 2025.

Status (registry)
Completed
Study type
Interventional
Enrollment
100 (actual)
First submitted
16 Aug 2019
Start date
23 Sept 2019
Primary completion date
24 Jan 2023
Lead sponsor
LumiThera, Inc.
NCT number
NCT04065490

What you commit to

  • Study type: Interventional
  • Participants enrolled: 100
  • From 23 Sept 2019 to the primary completion date, 24 Jan 2023
  • 10 sites in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Media opacities, including cataracts, which might interfere with visual acuity or imaging in the study eye(s). Subjects should not be entered if there is likelihood that they will require cataract surgery in the study eye in the next 24 months.
  • Posterior capsule opacification, which might interfere with visual acuity or imaging in the study eye(s). Subjects should not be entered if there is likelihood that they will require surgery in the study eye in the next 24 months.
  • Invasive eye surgery (e.g. cataract, capsulotomy) on a qualifying eye within three 3 months prior to Screening
  • History of drug, alcohol or substance abuse within 3 months prior to Screening
  • Has received an investigational drug or treatment with an investigational device within 3 months prior to Screening
  • If on any anti-oxidant or vitamin Age-Related Eye Disease Study (AREDS) supplement for dry AMD, has not been stabilized for a minimum of 1 month prior to Screening. Subjects are considered to be stable if they are taking the AREDS supplements consistently as prescribed by their treating doctor.
  • Has received Low Vision Rehab/Therapy within 30 days prior to Screening or intends to receive during the study

Other illness

  • Current or history of neovascular maculopathy that includes any of the following (to be confirmed by the reading center):
    • Choroidal neovascularization (CNV) defined as pathologic angiogenesis originating from the choroidal vasculature that extends through a defect in Bruch's membrane
    • Serous and/or hemorrhagic detachment of the neurosensory retina or retinal pigment epithelial (RPE)
    • Retinal hard exudates (a secondary phenomenon resulting from chronic intravascular leakage)
    • Subretinal and sub-RPE fibrovascular proliferation
    • Disciform scar (subretinal fibrosis)
  • Ocular disorder or disease that partially or completely obstructs the pupil (e.g. posterior synechia in uveitis)
  • Visually significant disease in any ocular structure apart from dry AMD (e.g. diabetic macular edema, glaucoma (using \>2 eye drop medications, uncontrolled IOP and/or central/paracentral visual field loss), glaucoma surgery, active uveitis, active vitreous disease, intraocular tumor, retinal vascular diseases)
  • Ocular disorder or disease other than dry AMD that could cause drusen (glomerulonephritis Type 2, Autosomal dominant drusen), GA (North Carolina dystrophy) or mitochondrial diseases (parafoveal petaloid GA, Stargardt disease)
  • Presence or history of disease or condition affecting functional vision without obvious structural abnormalities (e.g. amblyopia, stroke, nystagmus)
  • Serious medical illness that will prevent the subject from performing study activities (including cardiac, hepatic, renal, respiratory, endocrinologic, neurologic, or hematologic disease) or, in the judgement of the Investigator, is likely to require surgical intervention or hospitalization at any point during the study
  • Presence of or history of malignancy within the past 5 years other than non-melanoma skin or squamous cell cancer or cervical carcinoma in-situ
  • Presence or history of known light sensitivity to yellow light, red light, or near infrared radiation (NIR), or if they have a history of light activated CNS disorders (e.g. epilepsy, migraine)
  • Has an open sore(s) that may come in contact with the Valeda System, has periorbital skin erythema or is prone to such conditions with exposure to light.

Other

  • Presence of center involving GA within the central ETDRS 1 mm diameter at Screening, to be confirmed by the reading center
  • Is non-ambulatory
  • Use of any photosensitizing agent (e.g. topicals, injectables, oral) within 30 days of treatment without consulting subject's physician
  • In the opinion of the Investigator, is unlikely to comply with the study protocol

Who the study is looking for

  • Male or female at least 50 years of age at Screening visit
  • ETDRS BCVA letter score of between 50\* and 75\* (Snellen equivalent of 20/100 to 20/32). \*If the subject meets this criterion at the Screening Visit, but the Baseline BCVA letter score is between 48 and 77, the subject may be entered in the study.
  • Diagnosis of dry AMD as defined by the presence of the following:
    • Drusen that are intermediate in size or larger (63 μm or larger in diameter) with at least a few (3) being regular drusen and not pseudodrusen and/or geographic atrophy (GA) visible on two of the following: color fundus images, OCT and/or FAF, to be confirmed by the reading center
  • Able to communicate well with the Investigator and able to understand and comply with the requirements of the study
  • Informed of the nature of this study and has provided written, informed consent in accordance with institutional, local and national regulatory guidelines

Age in the registry: 50 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (10)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Florida Eye Clinic
Coordinator of this site? Confirm its status
Altamonte SpringsUnited StatesUnknown status
Retina-Vitreous Associates Medical Group
Coordinator of this site? Confirm its status
Beverly HillsUnited StatesUnknown status
Cumberland Valley Retina Consultants
Coordinator of this site? Confirm its status
ChambersburgUnited StatesUnknown status
Mid Atlantic Retina
Coordinator of this site? Confirm its status
Cherry HillUnited StatesUnknown status
Duke Eye Center
Coordinator of this site? Confirm its status
DurhamUnited StatesUnknown status
Cumberland Valley Retina Consultants
Coordinator of this site? Confirm its status
HagerstownUnited StatesUnknown status
Gulf Coast Eye Institute
Coordinator of this site? Confirm its status
McAllenUnited StatesUnknown status
New York Ear and Eye Infirmary
Coordinator of this site? Confirm its status
New YorkUnited StatesUnknown status
Stanford University
Coordinator of this site? Confirm its status
Palo AltoUnited StatesUnknown status
Retina Center Northwest
Coordinator of this site? Confirm its status
SilverdaleUnited StatesUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.