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NCT04853251 · Genentech, Inc.

A Study Assessing Corneal Endothelial Cells in Participants With Neovascular Age-related Macular Degeneration (nAMD) Treated With the Port Delivery System With Ranibizumab (PDS)

(Belvedere)

What this study is about

This study will assess corneal endothelial cells in participants with nAMD treated with PDS refilled every 24 weeks (Q24W).

View original scientific description

This study will assess corneal endothelial cells in participants with nAMD treated with PDS refilled every 24 weeks (Q24W).

Interventions

DEVICE

PDS Implant With Ranibizumab 100 mg/ml

Ranibizumab 100 mg/mL will be delivered via PDS

DRUG

LUCENTIS (Ranibizumab Injection)

Ranibizumab (0.5 mg intravitreal \[IVT\] injections of 10 mg/mL formulation) will be used in the study eye as supplemental treatment. If a participant discontinues study treatment, he/she may start receiving IVT ranibizumab injections in the study eye, per investigator's discretion.

Primary outcome measures

Percent Change in Corneal Endothelial Cell Density (ECD) From Baseline at Week 48 in the Study Eye as Compared With the Fellow Eye, as Assessed by Specular Microscopy

Time frame: Baseline, Week 48

Who can participate

This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.

Inclusion criteria

  • Ocular Inclusion Criteria:
  • Diagnosis of nAMD prior to screening as determined by the investigator
  • Difference of \<10% in ECD at screening between the 2 eyes as measured by specular microscopy and determined by the independent reading center
  • Availability of historical visual acuity (VA) data and spectral-domain optical coherence tomography (SD-OCT). Additionally, fluorescein angiography or color fundus photography can both be used to support participant eligibility per protocol at investigator discretion
  • Availability of comprehensive historical anti-vascular endothelial growth factor (VEGF) injection data, including agent administered and date of administration from the time of diagnosis, or for at least 2 years prior to screening if diagnosis was made more than 2 years before screening
  • Response to at least two prior anti-VEGF IVT injections as determined by the investigator based on the following:
  • Overall decrease in nAMD disease activity detected on historical or screening OCT
  • Stable or improved best-corrected visual acuity (BCVA)
  • BCVA of 34 letters (approximate 20/200 Snellen equivalent) or better, using Early Treatment of Diabetic Retinopathy Study (ETDRS) chart at a starting distance of 4 meters at screening and enrollment
  • All subtypes of nAMD lesions are permissible
  • nAMD lesions at the time of diagnosis must involve the macula
  • Sufficiently clear ocular media and adequate pupillary dilation to allow for clinical examination and analysis and grading by the central reading center of SD-OCT images

Exclusion criteria

  • Prior Ocular Treatment Study Eye:
  • Prior treatment with external-beam radiation therapy or transpupillary thermotherapy
  • Previous treatment with verteporfin injection (PDT) or corticosteroid IVT injection within 2 years of screening
  • Previous laser (except PDT as stated above) used for age related macular degeneration (AMD) treatment
  • History of corneal transplant
  • History of conjunctival surgery in the superotemporal quadrant
  • History of intraocular inflammation following anti-VEGF injection Either Eye:
  • Previous PDS implantation
  • Previous intraocular surgery (including cataract surgery) within 6 months of study enrollment
  • Prior vitrectomy surgery, submacular surgery, or other surgical intervention for age-related macular degeneration (AMD)
  • Prior pars plana vitrectomy surgery
  • Previous intraocular device implantation, excluding intraocular lenses
  • History of glaucoma-filtering surgery, tube shunts, or microinvasive glaucoma surgery
  • Prior participation in a clinical trial involving any intravitreal agents that are not approved at time of screening
  • Intraocular laser therapy, including selective laser trabeculoplasty, yttrium-aluminum garnet (YAG), prophylactic peripheral iridotomy within 1 year of screening, or YAG capsulotomy within 3 months of screening
  • Contact lens wear in either eye within 2 months of screening
  • Any prior penetrating ocular trauma
  • Any prior ocular blunt trauma affecting corneal or retinal health in the opinion of the investigator, or any ocular blunt trauma within 6 months of screening
  • History of corneal transplantation, including partial-thickness corneal grafts
  • Prior treatment with brolucizumab
  • Prior treatment with external-beam radiation therapy or brachytherapy
  • History of hypersensitivity to ranibizumab or any excipients of Susvimo Macular Neovascularization Lesion (MNV) Characteristics Study Eye:
  • Subretinal hemorrhage that involves the center of the fovea, if the hemorrhage is greater than 0.5-disc area \[1.27 square millimeters (mm\^2)\] in size
  • Subfoveal fibrosis or subfoveal atrophy Either Eye:
  • MNV due to other causes, such as ocular histoplasmosis, trauma, or pathologic myopia
  • MNV masquerading lesions (e.g., cone dystrophy, adult vitelliform dystrophy, pattern dystrophy) Current or Historical Ocular Conditions Study Eye:
  • Retinal pigment epithelial tear
  • Retinal tears or peripheral retinal breaks on depressed fundus exam that are untreated, or treated within the 3 months prior to study enrollment
  • Current vitreous hemorrhage
  • Current or history of retinal detachment
  • Previous violation of the posterior capsule is also an exclusion criterion unless it occurred as a result of YAG laser posterior capsulotomy in association with prior, posterior chamber intraocular lens implantation
  • Spherical equivalent of the refractive error demonstrating more than 8 diopters of myopia or evidence of pathologic myopia on depressed fundus examination
  • Preoperative refractive error that exceeds 8 diopters of myopia, for participants who have undergone prior refractive or cataract surgery
  • Spherical equivalent of the refractive error demonstrating more than 5 diopters of hyperopia
  • Preoperative refractive error that exceeds 5 diopters of hyperopia, for participants who have undergone prior refractive or cataract surgery
  • Uncontrolled ocular hypertension or glaucoma and any such condition the investigator determines may require a glaucoma-filtering surgery during a patient's participation in the study
  • Scleral pathology in the superotemporal quadrant (e.g., scleral thinning or calcification)
  • Conjunctival pathologies in the superotemporal quadrant
  • History or presence of severe posterior blepharitis, recurrent chalazia or hordeolum, severe dry eye syndrome, or severe allergic conjunctivitis
  • Ectropion, entropion or other impairment of the upper or lower eyelid impacting lid functionality needed to protect the ocular surface from exposure
  • Corneal neuropathy
  • Lagophthalmos or incomplete blink
  • Active or history of facial nerve palsy/paresis Fellow (Non-Study) Eye: • Concurrent or history of PDS implantation Either Eye:
  • Aphakia or absence of the posterior capsule
  • Any concurrent intraocular condition that would either require surgical intervention during the study to prevent or treat visual loss that might result from that condition or affect interpretation of study results
  • Corneal ECD ≤1500 cells/mm2 in either eye at screening as determined by the independent reading center
  • Fuchs endothelial corneal dystrophy Grade ≥ 2
  • Previous corneal endothelial cell damage, including from blunt or surgical trauma
  • Any ocular condition that precludes obtaining an analyzable specular microscopy image
  • Active or history of corneal edema
  • Active or history of corneal dystrophies
  • Active or history of iridocorneal endothelial syndrome
  • Active or history of pseudoexfoliation syndrome
  • Active or history of herpetic keratitis or kerato-uveitis
  • Any active or history of uveitis
  • Active intraocular inflammation
  • Active or history of keratitis, scleritis, or endophthalmitis
  • Active ocular or periocular infection
  • Active or history of Sjogren's syndrome or keratoconjunctivitis sicca
  • Active or history of floppy eyelid syndrome
  • Active or history of chronic eye rubbing
  • Active thyroid eye disease Concurrent Systemic Conditions:
  • History of uncontrolled blood pressure
  • Active or history of autoimmune diseases such as rheumatoid arthritis, lupus, granulomatosis with polyangiitis (Wegener's)
  • History of stroke within the last 3 months prior to screening
  • Uncontrolled atrial fibrillation within 3 months of screening
  • History of myocardial infarction within the last 3 months prior to screening
  • History of other disease, metabolic dysfunction, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of ranibizumab or placement of the implant and that might affect interpretation of the results of the study or renders the patient at high risk of treatment complications, in the opinion of the investigator
  • Current active systemic infection
  • Use of any systemic anti-VEGF agents
  • Chronic use of oral corticosteroids
  • Active cancer within 12 months of enrollment except for appropriately treated carcinoma in situ of the cervix, non-melanoma skin carcinoma, and prostate cancer with a Gleason score of ≤ 6 and a stable prostate-specific antigen for \> 12 months
  • Previous participation in any non-ocular (systemic) disease studies of investigational drugs within 1 month prior to screening (excluding vitamins and minerals)
  • Use of antimitotic or antimetabolite therapy within 30 days or 5 elimination half-lives of the screening visit
  • Requirement for continuous use of any medications or treatments indicated as prohibited therapy
  • Pregnant or breastfeeding, or intention to become pregnant during the study
  • Women of childbearing potential must have a negative urine pregnancy test result within 28 days prior to initiation of study treatment. If the urine pregnancy test is positive, it must be confirmed by a serum pregnancy test

Where

  • Mesa, Arizona
  • Bakersfield, California
  • Huntington Beach, California
  • Pasadena, California
  • Sacramento, California
  • San Francisco, California
  • Santa Ana, California
  • Torrance, California
  • Durango, Colorado
  • Longmont, Colorado
  • Waterford, Connecticut
  • Pensacola, Florida

And 38 more locations — see the full list below.

Related conditions & keywords

Neovascular Age-related Macular Degeneration

Frequently asked questions

What is a clinical trial?

A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.

Is it safe to participate?

Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.

Will I be compensated?

Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.

Will I receive a placebo instead of treatment?

When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.

Can I leave a trial if I change my mind?

Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.

How long does a clinical trial last?

Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.

Data: ClinicalTrials.gov · synced Oct 2, 2026 · Source of record for eligibility and locations

📊
1 of 188 participants interested
1% interest

See if this study fits

A short prescreen based on this study's listed criteria. A coordinator confirms eligibility — this is not a medical assessment.

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Study locations

Choose your preferred location, or select flexible during enrollment.

ACTIVE_NOT_RECRUITING

Mesa

Arizona

Location available
View Mesa location page
COMPLETED

Bakersfield

California

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Huntington Beach

California

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COMPLETED

Pasadena

California

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Sacramento

California

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San Francisco

California

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Santa Ana

California

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Torrance

California

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COMPLETED

Durango

Colorado

Location available

And 43 more locations available.

Express your interest

Share your contact details and a study coordinator can follow up about screening.

Secure & Confidential

Your information is protected and will only be shared with the research team.

What participation can include

  • Study-related care provided by the research team
  • Close monitoring by medical professionals
  • Possible compensation for time and travel*
  • The option to withdraw at any time
  • Contributing to medical research that may help future patients

*Compensation varies by study. Confirm details with coordinator.

Typical next steps

  1. 1.Submit this form
  2. 2.Phone screening
  3. 3.In-person assessment if eligible
  4. 4.Begin participation

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Looking for Macular Degeneration Treatment in Mesa?

Join others in Arizona exploring innovative treatment options through clinical research

Macular Degeneration Treatment Options in Mesa, Arizona

If you're searching for Macular Degeneration treatment in Mesa, participating in a clinical research study may provide access to innovative approaches under expert medical supervision. This study is actively recruiting participants in Mesa, Bakersfield, Huntington Beach and surrounding areas.

Clinical trials offer participants the opportunity to receive cutting-edge treatments while contributing to medical research that may help future patients with Macular Degeneration. All study-related care is provided at no cost to participants.

Local Sites
3 locations in Arizona
Now Enrolling
Up to 188 participants
Quick Start
Screening available now

Why Consider a Clinical Trial for Macular Degeneration?

Potential Benefits

  • ✓Access to new treatment approaches before public availability
  • ✓Close monitoring by experienced medical professionals
  • ✓Study-related care provided at no cost
  • ✓Contribute to medical research for Macular Degeneration

What to Expect

  • →Initial screening to determine eligibility
  • →Regular check-ups and monitoring visits
  • →Possible compensation for time and travel
  • →You can withdraw at any time

Frequently Asked Questions About This Macular Degeneration Study

Important Clinical Trial Information

This information is provided for educational purposes and does not constitute medical advice. Clinical trial participation involves potential risks and benefits. Eligibility requirements apply and will be assessed during the screening process.

Study identifier: NCT04853251. For complete study details, visit ClinicalTrials.gov. Always consult with your healthcare provider before making decisions about your medical care or participating in clinical research.