Wet Age-related Macular Degeneration Clinical Trial
Official title:
MMP-9 Inhibition for Recalcitrant Wet Age-Related Macular Degeneration (AMD)
Wet (or neovascular) form of age-related macular degeneration (wAMD) is the most common cause of blindness in the Western world. Currently, anti-vascular endothelial growth factor (VEGF) intravitreal injections (IVI) remain the standard-of-care treatment for wAMD. Previous studies show that about 90% of treated patients lose minimal visual function after 2 years of follow-up. There is still, a subset of 15% patients, incomplete responders, that do not improve and possibly worsen due to the persistence of sub-retinal fluid (with or without intra-retinal fluid) with chronic treatment. The investigators plan to evaluate the effect of oral doxycycline versus placebo on the anatomic and functional outcomes in persistent sub-retinal eye fluid in neovascular wet age-related macular degeneration. This subset are incomplete or non-responders to current anti-VEGF intravitreal therapy.
Status | Recruiting |
Enrollment | 50 |
Est. completion date | March 1, 2024 |
Est. primary completion date | December 31, 2023 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 50 Years to 99 Years |
Eligibility | Inclusion Criteria: - Wet age-related macular degeneration (wAMD); - Solely treated with anti-VEGF IVI for active CNV due to wAMD. However, enrolled patients can have other retinal pathologies such as diabetic retinopathy or vein occlusion for which they are not being treated with anti-VEGF IVI; - Must have persistent sub-retinal with or without intra-retinal fluid due to active CNV from wAMD despite receiving at least three consecutive injections with any anti-VEGF agent; - Must not have encountered previous side effects from tetracycline medications. Exclusion Criteria - Ocular: - History of uveitis (including endophthalmitis) or presence of intraocular inflammation; - Presence of significant epiretinal membrane or macular hole causing distortion of macular anatomy; - Presence of media opacity preventing discerning of fluid on OCT; - Any prior ophthalmic surgery (including YAG or retinal laser) within the previous 3 months or anticipated need for any ophthalmic surgery (including cataract extraction) for 9 months following randomization; - History of peribulbar corticosteroid injection to the studied eye or the fellow eye within the past 6 months; - History of intravitreal triamcinolone acetonide injection to the studied eye within the past 4 months; - An ocular condition (other than AMD) is present in the studied eye that, in the opinion of the investigator, might alter visual acuity during the course of the study (e.g., retinal vein occlusion, uveitis or other ocular inflammatory disease, neovascular glaucoma, and Irvine-Gass syndrome); - CNV due to causes other than wAMD; - Inability to follow up at the 6th and 9th months time points after recruitment; - Missing two or more consecutive injections during the six months treatment period; - Patient requiring imminent need for IVI anti-VEGF medication switch or another treatment intervention, such as photodynamic therapy, during the 9 months trial period; - Presence of fluid associated with geographic atrophy or disciform scar; - Any patient with sub-retinal and/or intra-retinal fluid that is not due to CNV (eg, overlying areas of geographic atrophy; - Any patient actively being actively treated for Irvine-Gass Syndrome. Exclusion Criteria - Systemic: - Patient with and/or who developed an unstable medical status (e.g., glycemic control, blood pressure, cardiovascular disease, individuals who are unlikely or unable to complete the 9 months trial period) in the opinion of the investigator; - Significant renal disease (defined as a serum creatinine >2.5 mg/dL); - Systolic blood pressure >180 mm Hg or diastolic blood pressure >110 mm Hg; - History of headaches associated with tetracycline therapy - History of pseudotumor cerebri; - History of tetracycline therapy within the past 6 months; - Pregnancy or patient intending to become pregnant within the 9 months of the trial period. For women of child-bearing potential, a pregnancy test will be performed; - Sexually active women of child-bearing potential not actively practicing birth control by using a medically accepted device or therapy (i.e., intrauterine device, hormonal contraceptive, or barrier device) during the study period (at least 24 months). This is important as doxycycline may interfere with the effectiveness of hormonal contraceptives. Hence, sexually active women of child-bearing potential who use a hormonal contraceptive will be required to use a second form of contraception to safeguard against contraceptive failure while participating in the study; - Known allergy/intolerance to doxycycline, tetracyclines, or any ingredient in the study drug or placebo; - Patients receiving phenytoin, barbiturates, carbamazepine, digoxin, or isotretinoin; patients with gastroparesis; patients with a history of gastrectomy, gastric bypass surgery, or otherwise deemed achlorhydric should all be excluded due to altered doxycycline pharmacokinetics and/or bioavailability; - Patients taking strontium, acitretin, or tretinoin should excluded due to the potential for serious interactions with doxycycline; - Patients with abnormal ALT or AST at baseline will be referred to their primary care physician for medical clearance for participation in this study. |
Country | Name | City | State |
---|---|---|---|
United States | University of Iowa Hospitals & Clinics Department of Ophthalmology & Visual Sciences | Iowa City | Iowa |
Lead Sponsor | Collaborator |
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University of Iowa |
United States,
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Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Ocular Adverse Events | intra-ocular pressure elevation ( more than 10 mmHg) requiring topical ocular hypertensive medications, endophthalmitis, retinal tear and detachment, uveitis, and thromboembolic events will be recorded | Baseline to 9 months | |
Other | Systemic Adverse Events | Allergy or hypersensitivity drug reactions | Baseline to 9 months | |
Primary | Resolution of the persistent retinal fluid on optical coherence tomography (OCT) | percentage of patients with retinal fluid-free status | 9 months | |
Secondary | Change in optical coherence tomography (OCT) central media thickness (CMT) | mean change in central media thickness | 9 months compared to baseline | |
Secondary | Change in best corrected visual acuity (BCVA) | mean change in logMAR / percentage of patients with a gain or loss of more than 5 ETDRS letters | 6 months and 9 months compared to Baseline | |
Secondary | Number of intravitreal injections (IVI) administered | total number of anti-VEGF intravitreal injections | 6 months and 9 months | |
Secondary | Inflammatory mediators matrix metalloproteinases MMP-9 and MMP-9 activity | anterior eye aqueous fluid and blood plasma | Baseline, 6 months and 9 months |
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Phase 1 | |
Completed |
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Effectiveness of Anti-VEGF Treatments in Wet AMD in Active Smokers
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Comparison of Rapid Aflibercept and Brolucizumab T&E in wAMD
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N/A | |
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A Study to Evaluate the Efficacy and Safety of MW02 in the Treatment of nAMD
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Phase 2/Phase 3 | |
Completed |
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Assessment of Proactive Treatments in Patients With Wet Age-related Macular Degeneration (wAMD) Which Have Never Undergone Treatment of This Particular Disease
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Completed |
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Safety and Tolerability of RGX-314 (Investigational Product) Gene Therapy for Neovascular AMD Trial
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Phase 1/Phase 2 | |
Terminated |
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Phase 1 | |
Recruiting |
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Efficacy and Safety of RC28-E Versus Aflibercept
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Phase 3 | |
Completed |
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Phase I Study to Compare CMAB818 Injection and Lucentis® in Patients With Wet AMD
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Phase 1 | |
Completed |
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A Study to Evaluate the Efficacy and Safety of Intravitreal KSI-301 Compared With Intravitreal Aflibercept in Participants With Neovascular (Wet) Age-related Macular Degeneration (wAMD)
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Phase 3 | |
Withdrawn |
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Study to Evaluate the Safety and Effectiveness of IRay in Wet Age-related Macular Degeneration (AMD) Patients With Recurrent Leakage Secondary to Choroidal Neovascularisation (CNV)
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N/A | |
Terminated |
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Phase 3 |