- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04847635
Subthreshold Laser Treatment for Reticular Pseudodrusen Secondary to Age-related Macular Degeneration (PASCAL-RPD)
Prospective, randomized, controlled, longitudinal, interventional multicentric study involving patients with reticular pseudodrusen secondary to AMD.
The objective of this study is to establish the effectiveness of subthreshold laser treatment in increase/prevent the decrease of the retinal sensibility in patients with reticular pseudodrusen, and to reduce the progression of RPD to atrophy.
Approximately 50 naïve patients with reticular pseudodrusen who underwent subthreshold laser treatment in perifoveal area. These patients should be randomized in the 2 study arms of the study. Patients will be evaluated at Screening/Baseline and then revaluated and retreated at month 3, 6 and 9. At month 12, all patients will be evaluated with a full ocular examination, visual acuity measurement (VA), optical coherence tomography (OCT) with autofluorescence, OCT-angiography and microperimetry.
The rationale of the study is to prevent the evolution of reticular pseudodrusen to atrophic degeneration.
Study Overview
Status
Conditions
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Giuseppe Querques, MD, PhD
- Phone Number: +390226434004
- Email: querques.giuseppe@hsr.it
Study Locations
-
-
-
Genova, Italy
- Recruiting
- Massimo Nicolò
-
Contact:
- Massimo Nicolò, MD
- Phone Number: +390103538469
- Email: massimonicolo@gmail.com
-
Milan, Italy, 20134
- Recruiting
- Giuseppe Querques
-
Contact:
- Giuseppe Querques, MD, PhD
- Phone Number: +390226434004
- Email: querques.giuseppe@hsr.it
-
Principal Investigator:
- Giuseppe Querques, MD, PhD
-
Principal Investigator:
- Riccardo Sacconi, MD, FEBO
-
Sub-Investigator:
- Enrico Borrelli, MD, FEBO
-
Rome, Italy
- Recruiting
- Mariacristina Parravano
-
Contact:
- Mariacristina Parravano
- Phone Number: +390685356727
- Email: mcparravano@gmail.com
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- 50 years or older
- Presence of RPD secondary to AMD
- Best-corrected visual acuity (BCVA) between 20/20 and 20/400 inclusive
- Clear ocular media
- Ability to provide informed consent and attend all study visits
Exclusion Criteria:
- Presence of Geographic Atrophy (GA)
- Evidence of choroidal neovascularization in either eye
- Any prior treatment for AMD, aside from antioxidants
- Any corneal opacity, cataract formation and hemorrhage in the vitreous body, which may interfere with viewing by the laser surgeon of the target structures
- Aphakic eye with vitreous in the anterior chamber
- Neovascular Glaucoma
- Glaucoma caused by congenital angle anomalies
- Open angle of less than 90º or extensive peripheral anterior and low synechia, present circumferentially around the corner
- Significant corneal edema or reduced water clarity that obscures the view angle in detail
- Glaucoma secondary to active uveitis
- Any other ocular condition that would progress in the study period and confound visual acuity assessment
- Any ocular or systemic medication known to be toxic to the lens, retina or optic nerve Presence of idiopathic or autoimmune-associated uveitis
- Any intraocular surgery 3 months of entry
- Any prior thermal laser in the macula
- History of vitrectomy, filtering surgery, corneal transplant or retinal detachment surgery
- Previous therapeutic radiation in the ocular region in either eye
- Any treatment with an investigational agent in the previous 60 days before study entry
- Women of child-bearing potential, defined as all women less than 1 year postmenopausal or less than 6 weeks since sterilization (further definition can be found in Section 12.7) at Baseline, unless they are using highly effective methods of contraception during dosing of study treatment.
- Participation in an investigational drug, biologic, or device study within 6 Months prior to Baseline [Note: observational clinical studies solely involving over-the-counter vitamins, supplements, or diets are not exclusionary
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Subthreshold laser group
To evaluate the efficacy of Subthreshold laser in the treatment of reticular pseudodrusen.
|
The subthreshold laser treatment will be performed using subthreshold laser Pascal Synthesis 577 on a customized macular area.
|
Sham Comparator: Sham group
The light from the retinal illumination system on the laser device will be used instead of the laser beam in all follow-up evaluations.
|
The laser treatment will be performed without any power (only the light beam) using subthreshold laser Pascal Synthesis 577 on a customized macular area.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in the retinal sensitivity - 12 months
Time Frame: 12 months
|
Functional changes in the retinal sensitivity on customized microperimetry from day 0 to month 12 (unit of measure: dB)
|
12 months
|
Anatomical changes using structural optical coherence tomography (OCT)
Time Frame: 12 months
|
Anatomical changes will be evaluated with retinal thickness (unit of measure: microns)
|
12 months
|
Rate of Progression
Time Frame: 12 months
|
Rate of progression to advance AMD (GA and/or neovascular AMD)
|
12 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in the retinal sensitivity - 6 months
Time Frame: 6 months
|
Functional changes in the retinal sensitivity on customized microperimetry from day 0 to month 6 (unit of measure: dB)
|
6 months
|
Anatomical changes using fundus autofluorescence (FAF)
Time Frame: 12 months
|
Anatomical changes will be evaluated analyzing the development of geographic atrophy using FAF
|
12 months
|
Genetic influence (% of AMD-associated single-nucleotide polymorphism (SNP) in treated patients)
Time Frame: 12 months
|
The % of AMD-associated single-nucleotide polymorphism (SNP) will be evaluated analyzing the % of patients with an AMD-associated SNP in patients showing no progression vs progression to advance AMD (main outcome 3).
|
12 months
|
Anatomical changes using OCT-angiography (OCT-A)
Time Frame: 12 months
|
Anatomical changes will be evaluated analyzing the perfusion density by means of OCT-A
|
12 months
|
Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- PASCAL-RPD
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Macular Degeneration, Dry
-
Shanghai General Hospital, Shanghai Jiao Tong University...Not yet recruitingDry Age-related Macular Degeneration | Macular Degeneration, DryChina
-
Duke UniversityCompleted
-
Luxa Biotechnology, LLCNational Eye Institute (NEI); National Institutes of Health (NIH); Regenerative...RecruitingDry Age-related Macular DegenerationUnited States
-
CHABiotech CO., LtdTerminatedDry Age Related Macular DegenerationKorea, Republic of
-
Smilebiotek Zhuhai LimitedActive, not recruitingDry Age-related Macular DegenerationUnited States
-
Chinese Academy of SciencesBeijing Tongren HospitalUnknownDry Age-related Macular DegenerationChina
-
Apheresis Research InstituteCompletedDry Age Related Macular DegenerationGermany
-
LumiThera, Inc.RecruitingDry Age-related Macular DegenerationNorway
-
LumiThera, Inc.National Eye Institute (NEI)RecruitingDry Age-related Macular DegenerationUnited States
-
Sucampo Pharma Americas, LLCSucampo Pharmaceuticals, Inc.CompletedDry Age-related Macular DegenerationAustria
Clinical Trials on Pascal Synthesis 577 sub-threshold laser (Topcon Corporation, Tokyo, Japan)
-
Ospedale San RaffaeleCompletedAge-Related Macular Degeneration | Geographic Atrophy | Reticular PseudodrusenItaly