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This LIGHTSITE II 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.
This 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. The target enrollment is 96 subjects in up to 10 centers in Europe, randomized at a 1:2 ratio into 2 groups: Sham Treatment (S-1) and PBM Treatment (T-2). Once 96 subjects have been enrolled in the study, if there are less than 144 eyes that qualify for the study, additional subjects will be enrolled until 144 eyes have been included in the study.
S-1 will receive 3 sham treatments per week over 3 to 5 weeks starting at Baseline and starting again at Months 4 and 8. T-2 will receive 3 PBM treatments per week over 3 to 5 weeks starting at Baseline and starting again at Months 4 and 8. Each treatment series will total 9 treatments. Neither the subject nor the study staff will know which treatment the subject has been assigned.
Subjects will receive standard visual outcome measurements including Early Treatment Diabetic Retinopathy Study (ETDRS) BCVA, CSV-1000E contrast sensitivity (CS) and the Radner Reading Test prior to and following each treatment series as well as eye exams, fundus photographs, Heidelberg OCT and FAF imaging and optional Optos Ultra Wide Field (UWF) imaging of the retina at selected time intervals. Subjects will also complete the Visual Function Questionnaire 25 (VFQ-25) at selected time intervals.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| PBM Treatment | Experimental | The Valeda™ Light Delivery System will deliver 590, 660 and 850 nm wavelengths together. |
|
| Sham Treatment | Sham Comparator | The Valeda™ Light Delivery System will deliver non-effective treatment of the 590 and 660 nm wavelengths together. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Valeda PBM treatment | Device | The Valeda Light Delivery System delivers 590, 660 and 850 nm wavelengths of light to the study eye. The Valeda Light Delivery System will treat through the open eyelid with the 590 nm and 850 nm wavelengths together. The 660 nm wavelength will be treated through the closed eyelid. |
| Measure | Description | Time Frame |
|---|---|---|
| Best Corrected Visual Acuity | The primary efficacy endpoint will be the change in BCVA from Baseline to Month 9 as assessed using the ETDRS BCVA chart. | Month 9 |
| Measure | Description | Time Frame |
|---|---|---|
| Best Corrected Visual Acuity | The first of the secondary analyses will test the difference between the sham-treated and PBM-treated subjects in mean change from baseline (pre-treatment) to Month 9 in BCVA. | Month 9 |
| Contrast Sensitivity |
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Inclusion Criteria:
Exclusion Criteria:
Current or history of neovascular maculopathy that includes any of the following:
Presence of center involving GA within the central ETDRS 1 mm diameter at Screening
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
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)
Has a 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
Is non-ambulatory
Presence or history of known light sensitivity to yellow light, red light, or near infrared radiation (NIR), or if there is a history of light activated CNS disorders (e.g. epilepsy, migraine)
Use of any photosensitizing agent (e.g. topicals, injectables) within 30 days of treatment without consulting subject's physician
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
In the opinion of the Investigator, is unlikely to comply with the study protocol
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Institut ophtalmologique de l'Ouest- Clinique jules VERNE | Nantes | France | ||||
| Universitätsklinikum Freiburg- Klinik für Augenheilkunde |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 36588113 | Derived | Burton B, Parodi MB, Jurgens I, Zanlonghi X, Hornan D, Roider J, Lorenz K, Munk MR, Croissant CL, Tedford SE, Walker M, Ruckert R, Tedford CE. LIGHTSITE II Randomized Multicenter Trial: Evaluation of Multiwavelength Photobiomodulation in Non-exudative Age-Related Macular Degeneration. Ophthalmol Ther. 2023 Apr;12(2):953-968. doi: 10.1007/s40123-022-00640-6. Epub 2023 Jan 2. |
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Valeda Light Delivery System
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|
| Valeda Sham treatment | Device | The sham mode emits an approximate 100x reduction in the highest dose for the 660 nm wavelengths as compared to the treatment mode, producing a slightly duller light. The 850 nm (NIR) wavelength (which is not visible light) is not provided in the sham treatment. |
|
The second of the secondary analyses will test the difference between the sham-treated and PBM-treated subjects in mean change from baseline (pre-treatment) to Month 9 in contrast sensitivity at 18 cycles/degree (CPD).
| Month 9 |
| Impact on Central Drusen Volume by OCT | The analyses will first examine change from the screening visit in central Drusen volume | Month 10 |
| Impact on Central Drusen Thickness by OCT | The analyses will then examine change from the screening visit in central Drusen Thickness | Month 10 |
| Freiburg im Breisgau |
| 79106 |
| Germany |
| Klinik fur Ophthalmologie, Universitatsklinikum Schleswig-Holstein | Kiel | Germany |
| Universitaetsmedizin Mainz- Augenklinik | Mainz | 55131 | Germany |
| Osprdalr San Raffaele | Milan | Italy |
| Institut CatalĂ de Retina | Barcelona | Spain |
| James Paget University | Great Yarmouth | NR31 6LA | United Kingdom |
| Peterborough City Hospital | Peterborough | PE3 9GZ | United Kingdom |