Diabetic RetinopathyPhase 3PAVILIONNCT04503551
A Multicenter, Randomized Study in Participants With Diabetic Retinopathy Without Center-involved Diabetic Macular Edema To Evaluate the Efficacy, Safety, and Pharmacokinetics of Ranibizumab Delivered Via the Port Delivery System Relative to the Comparator Arm
A Phase 3 study testing PDS Implant Pre-Filled with 100 mg/mL Ranibizumab and Intravitreal Ranibizumab 0.5 mg Injection in people with Diabetic Retinopathy, run by Hoffmann-La Roche at 65 sites in 2 countries.
Trial summary
Study GR41675 is a Multicenter, Randomized Study in Participants with Diabetic Retinopathy (DR) Without Center-Involved Diabetic Macular Edema (CI-DME) to Evaluate the Efficacy, Safety of the Port Delivery System with Ranibizumab (PDS) Relative to the Comparator Arm Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Diabetic Retinopathy
- What is being tested?
- PDS Implant Pre-Filled with 100 mg/mL Ranibizumab and Intravitreal Ranibizumab 0.5 mg Injection
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 174 participants
- Where
- 65 sitesin 2 countries
- Study dates
- 10 Aug 2020to 23 Feb 2026
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age ≥18 years at time of signing Informed Consent Form
- Documented diagnosis of diabetes mellitus (Type 1 or Type 2)
- HbA1c level of ≤12% within 2 months prior to screening or at screening
- Moderately severe or severe NPDR (ETDRS-DRSS level 47 or 53)
- BCVA score of ≥ 69 letters (20/40 approximate Snellen equivalent or better)
Who cannot join
- Uncontrolled blood pressure
- Cerebrovascular accident or myocardial infarction within 6 months prior to randomization
- Atrial fibrillation diagnosis or worsening within 6 months prior to randomization
- Current systemic treatment for a confirmed active systemic infection
- Renal failure requiring renal transplant, hemodialysis, or peritoneal dialysis, or anticipated to require hemodialysis or peritoneal dialysis at any time during the study
- History of other disease, other non-diabetic metabolic dysfunction, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a condition that contraindicates the use of ranibizumab or surgical placement of the PDS implant; that might affect interpretation of the results of the study; or that renders the patient at high risk for treatment complications in the opinion of the investigator or Sponsor
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- Ocular Exclusion Criteria for Study Eye:
- Presence of center-involved diabetic macular edema (defined as CST ≥325 µm)
- Any intravitreal anti-VEGF treatment at any time prior to randomization
- Any use of medicated intraocular implants, including Ozurdex® or Iluvien® implants at any time prior to randomization
- Any intravitreal corticosteroid treatment at any time prior to randomization
- Any periocular (e.g., subtenon) corticosteroid treatment at any time prior to randomization
- Any PRP at any time prior to randomization
- Any macular laser photocoagulation (such as micropulse and focal or grid laser) at any time prior to randomization
- Active intraocular inflammation (grade trace or above)
- Clinically significant abnormalities of the vitreous-retinal interface involving the macular area or disrupting the macular architecture, such as vitreous-retinal traction or epiretinal membrane (assessed by the investigator and confirmed by the central reading center)
- Uncontrolled ocular hypertension or glaucoma and any such condition the investigator determines may require a glaucoma-filtering surgery during a participant's participation in the study
- History of glaucoma-filtering surgery, tube shunts, or microinvasive glaucoma surgery
- Any concurrent ocular condition (e.g., cataract, epiretinal membrane) that would require surgical intervention during the study to prevent or treat visual loss that might result from that condition
- Any concurrent ocular condition (e.g., amblyopia, strabismus) that may affect interpretation of study results
- History of other ocular diseases that gives reasonable suspicion of a disease or condition that contraindicates the use of ranibizumab, that might affect interpretation of study results, or that renders the participant at high risk for treatment complications
- Ocular Exclusion Criteria for Either Eye
- Suspected or active ocular or periocular infection of either eye
- Any history uveitis including idiopathic, drug-associated or autoimmune-associated uveitis
Trial locations and contacts
65 sites in 2 countries.
65 sites in 2 countries
United States64 sites
Retina Consultants of Hawaii at Pali Momi Medical Center
‘Aiea, Hawaii, 96701
Retina Research Institute of Texas
Abilene, Texas, 79606
Asheville Eye Associates Western Carolina Retinal Associates;Clinical Research
Asheville, North Carolina, 28803
Southeast Retina Center
Augusta, Georgia, 30909
Austin Retina Associates;Opthalmology
Austin, Texas, 78705
California Retina Consultants
Bakersfield, California, 93309
The Retina Care Center
Baltimore, Maryland, 21209
Johns Hopkins Hospital;Johns Hopkins Med;Wilmer Eye Inst
Baltimore, Maryland, 21287
Retina & Vitreous of Texas
Bellaire, Texas, 77401
Envision Ocular, LLC
Bloomfield, New Jersey, 07003
Charlotte Eye Ear Nose and Throat Associates- SouthPark;Retina
Charlotte, North Carolina, 28210
Pepose Vision Institute
Chesterfield, Missouri, 63017
Northwestern Memorial Hospital
Chicago, Illinois, 60611
Ohio State Havener Eye Institute;Ophthalmology Research
Columbus, Ohio, 43212
Texas Retina Associates;Research
Dallas, Texas, 75231
Southwest Retina Research Center
Durango, Colorado, 81303
Duke Eye Center
Durham, North Carolina, 27705
Retina Vitreous Center - Glen Eagles
Edmond, Oklahoma, 73013
The Retina Partners
Encino, California, 91436
Retina Consultants of Orange County;Clinical Research
Fullerton, California, 92835
Charles Retina Institution;Retina surgery
Germantown, Tennessee, 38138
Retina Center of Texas
Grapevine, Texas, 76051
Cumberland Valley Retina Consultants;Clinical Research
Hagerstown, Maryland, 21740
Retina Consultants of Texas
Houston, Texas, 77401
Illinois Retina Associates
Joliet, Illinois, 60435
Southeastern Retina Associates
Knoxville, Tennessee, 37922
Charleston Neuroscience
Ladson, South Carolina, 29456
Colorado Clinical Research
Lakewood, Colorado, 80228
University Retina
Lemont, Illinois, 60439
Retina Associates
Lenexa, Kansas, 66215
Retina Vitreous Surgeons of Central New York
Liverpool, New York, 13088
Jules Stein Eye Institute/ UCLA
Los Angeles, California, 90095
Piedmont Eye Center
Lynchburg, Virginia, 24502
Georgia Retina
Marietta, Georgia, 30060
Barnet Dulaney Perkins Eye Center
Mesa, Arizona, 85206
VitreoRetinal Surgery PLLC;DBA Retina Consultants of Minnesota
Minneapolis, Minnesota, 55435
Rocky Mountain Retina Consultants
Murray, Utah, 84107
Tennessee Retina
Nashville, Tennessee, 37203
New York University (NYU)
New York, New York, 10012
Wagner Kapoor Institute;Opthalmology
Norfolk, Virginia, 23502
California Eye Specialists Medical Group
Pasadena, California, 91107
Retina Specialty Institute
Pensacola, Florida, 32503
Mid Atlantic Retina;Retina Research
Philadelphia, Pennsylvania, 19107
Retinal Consultants of Arizona;Opthalmology
Phoenix, Arizona, 85014
Associated Retina Consultants
Phoenix, Arizona, 85020
Fort Lauderdale Eye Institute
Plantation, Florida, 33324
Maine Eye Center
Portland, Maine, 04605
Retina Northwest;Research Department
Portland, Oregon, 97221
Sierra Eye Associates
Reno, Nevada, 89502
Retina Institute of Virginia
Richmond, Virginia, 23235
Kaiser Permanente;RESEARCH AND EVALUATION
Riverside, California, 92505
Associated Retinal Consultants - Royal Oak
Royal Oak, Michigan, 48073
Retina Consultants Medical Group
Sacramento, California, 95841
Retina Associates of Utah, PLLC;Clinical Research
Salt Lake City, Utah, 84107
Medical Center Ophthalmology Associates
San Antonio, Texas, 78240
Orange County Retina Medical Group
Santa Ana, California, 92705
Pacific Northwest Retina
Silverdale, Washington, 98383
Spokane Eye Clinical Research;Spokane Eye Surgery Center
Spokane, Washington, 99204
Retina Associates of Florida;Retina Associates of Florida
Tampa, Florida, 33609
Retina Associates of New Jersey
Teaneck, New Jersey, 07666
Retina Consultants of Texas
The Woodlands, Texas, 77384
Retina Group of New England
Waterford, Connecticut, 06385
Palmetto Retina Center
West Columbia, South Carolina, 29169
Cape Fear Retinal Associates
Wilmington, North Carolina, 28401
About this study
Official title: A Phase III, Multicenter, Randomized Study of the Efficacy, Safety, and Pharmacokinetics of the Port Delivery System With Ranibizumab in Patients With Diabetic Retinopathy
Study GR41675 is a Multicenter, Randomized Study in Participants with Diabetic Retinopathy (DR) Without Center-Involved Diabetic Macular Edema (CI-DME) to Evaluate the Efficacy, Safety of the Port Delivery System with Ranibizumab (PDS) Relative to the Comparator Arm
- Conditions
- Diabetic Retinopathy
- Being tested
- PDS Implant Pre-Filled with 100 mg/mL Ranibizumab, Intravitreal Ranibizumab 0.5 mg Injection
- Keywords
- Port Delivery System; ranibizumab; Diabetic Retinopathy; anti-VEGF, nonproliferative diabetic retinopathy, retina, vision loss, retinal disease, eye disease
- Medical subject headings
- Diabetic Retinopathy, Vision Disorders, Retinal Diseases, Eye Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PDS Implant Pre-Filled with 100 mg/mL RanibizumabDrug
Will be administered as per the schedule described in individual arm.
Intravitreal Ranibizumab 0.5 mg InjectionDrug
Will be administered as per the schedule described in individual arm.
| Study group | Role | What they receive |
|---|---|---|
| PDS Arm | Experimental | Participants randomized to the PDS arm will receive two intravitreal ranibizumab injections and will then have the PDS implant (pre-filled with ranibizumab) surgically inserted. PDS implant refill-exchange procedures will be performed on a fixed interval every 36-weeks (Q36W) thereafter Receives: Drug: PDS Implant Pre-Filled with 100 mg/mL Ranibizumab; Drug: Intravitreal Ranibizumab 0.5 mg Injection |
| Comparator Arm | Other | Participants randomized to the comparator arm will undergo study visits every 4 weeks (Q4W) for comprehensive clinical monitoring until they receive the PDS implant (pre-filled with ranibizumab). PDS implant refill-exchange procedures will be performed on a fixed interval Q36W thereafter. Participants will be eligible to receive intravitreal ranibizumab 0.5 mg injections if treatment eligibility criteria are met. Receives: Drug: PDS Implant Pre-Filled with 100 mg/mL Ranibizumab; Drug: Intravitreal Ranibizumab 0.5 mg Injection |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of Participants With a ≥2-Step Improvement From Baseline on the Early Treatment Diabetic Retinopathy Study-Diabetic Retinopathy Severity Scale (ETDRS-DRSS) at Week 52
ETDRS-DRSS classifies diabetic retinopathy (DR) into 12 severity steps ranging from absence of retinopathy to advanced proliferative diabetic retinopathy (PDR). DRSS grades= 10 (DR absent) - 85 (very advanced PDR), DRSS 90 = ungradable. All DRSS values are converted into a 12-level scale, from 1 (DR absent) to 12 (very advanced PDR), allowing derivation of ≥2-step change from baseline for post-baseline assessment. A lower score represents less advanced diabetic retinopathy. The Cochran-Mantel Haenszel (CMH) method was used for analysis and weighted percentage of participants are estimated and reported in this outcome measure. Participants receiving supplemental treatments, prohibited therapy, or panretinal photocoagulation (PRP) were considered non-responders. Missing values not preceded by these intercurrent events were imputed using the last observation carried forward method. SD OCT= spectral-domain optical coherence tomography.
Measured: Baseline, Week 52
Secondary outcomes (34)
Rate of Participants Developing a Vision-Threatening Complication or Center-involved Diabetic Macular Edema (CI-DME) Through Week 52
A vision threatening complication is defined as proliferative DR (PDR) or anterior segment neovascularization (ASNV) or center-involved diabetic macular edema (CI-DME). CI-DME is defined as central foveal thickness (CST) ≥325 micrometres (μm) on spectral-domain optical coherence tomography (SD-OCT). Composite strategy (i.e., considered to be an event) was applied to participants who received supplemental or prohibited therapy or PRP in the study eye. The rate of participants was calculated using the Kaplan-Meier (KM) method.
Measured: From Baseline through Week 52
Rate of Participants Developing PDR or ASNV Through Week 52
The KM method was used for analysis, and estimates are in terms of event rate. Composite strategy (i.e., considered to be an event) was applied to participants who received supplemental or prohibited therapy or PRP in the study eye.
Measured: From Baseline through Week 52
Rate of Participants Developing CI-DME Through Week 52
CI-DME is defined as CST ≥325 μm on SD-OCT. The KM method was used for analysis, and estimated in terms of event rate. Composite strategy (i.e., considered to be an event) was applied to participants who received supplemental or prohibited therapy or PRP in the study eye.
Measured: From Baseline through Week 52
Rate of Participants Developing a ≥ 2-Step Worsening From Baseline on the ETDRS-DRSS Through Week 52
ETDRS-DRSS classifies diabetic retinopathy (DR) into 12 severity steps ranging from absence of retinopathy to advanced proliferative diabetic retinopathy (PDR). DRSS grades= 10 (DR absent) - 85 (very advanced PDR ), DRSS 90 = ungradable. All DRSS values are converted into a 12-level scale, from 1 (DR absent) to 12 (very advanced PDR), allowing derivation of ≥2-step change from baseline for post-baseline assessment. A lower score represents less advanced diabetic retinopathy. Composite strategy (i.e., considered to be an event) was applied to participants who received supplemental or prohibited therapy or PRP in the study eye. The rate of participants developing ≥ 2-step worsening on the ETDRS-DRSS was calculated using the KM method.
Measured: From Baseline through Week 52
Percentage of Participants With a ≥ 3-Step Improvement From Baseline on the ETDRS-DRSS at Week 52
ETDRS-DRSS classifies diabetic retinopathy (DR) into 12 severity steps ranging from absence of retinopathy to advanced proliferative diabetic retinopathy (PDR). DRSS grades= 10 (DR absent) - 85 (very advanced PDR ), DRSS 90 = ungradable. All DRSS values are converted into a 12-level scale, from 1 (DR absent) to 12 (very advanced PDR), allowing derivation of ≥2-step change from baseline for post-baseline assessment. A lower score represents less advanced diabetic retinopathy. Participants receiving supplemental treatments, prohibited therapy, or panretinal photocoagulation (PRP) were considered non-responders. Missing values not preceded by these intercurrent events were imputed using the last observation carried forward method. Percentages are rounded off to the nearest decimal point.
Measured: Week 52
Rate of Participants Developing a ≥ 3-Step Worsening From Baseline on the ETDRS-DRSS Through Week 52
ETDRS-DRSS classifies diabetic retinopathy (DR) into 12 severity steps ranging from absence of retinopathy to advanced proliferative diabetic retinopathy (PDR). DRSS grades= 10 (DR absent) - 85 (very advanced PDR ), DRSS 90 = ungradable. All DRSS values are converted into a 12-level scale, from 1 (DR absent) to 12 (very advanced PDR), allowing derivation of ≥2-step change from baseline for post-baseline assessment. A lower score represents less advanced diabetic retinopathy. Composite strategy (i.e., considered to be an event) was applied to participants who received supplemental or prohibited therapy or PRP in the study eye. The rate of participants developing ≥ 3-step worsening on the ETDRS-DRSS was calculated using the KM method.
Measured: From Baseline through Week 52
Percentage of Participants With a ≥ 2-Step Improvement From Baseline on the ETDRS-DRSS Over Time
ETDRS-DRSS classifies diabetic retinopathy (DR) into 12 severity steps ranging from absence of retinopathy to advanced proliferative diabetic retinopathy (PDR). DRSS grades= 10 (DR absent) - 85 (very advanced PDR), DRSS 90 = ungradable. All DRSS values are converted into a 12-level scale , from 1 (DR absent) to 12 (very advanced PDR), allowing derivation of ≥2-step change from baseline for post-baseline assessment. A lower score represents less advanced diabetic retinopathy.
Measured: Baseline up to Week 112
Percentage of Participants With a ≥ 3-step Improvement From Baseline on the ETDRS-DRSS Over Time
ETDRS-DRSS classifies diabetic retinopathy (DR) into 12 severity steps ranging from absence of retinopathy to advanced proliferative diabetic retinopathy (PDR). DRSS grades= 10 (DR absent) - 85 (very advanced PDR ), DRSS 90 = ungradable. All DRSS values are converted into a 12-level scale , from 1 (DR absent) to 12 (very advanced PDR), allowing derivation of ≥2-step change from baseline for post-baseline assessment. A lower score represents less advanced diabetic retinopathy.
Measured: Baseline up to Week 112
Time to First Development of Either PDR, ASNV, or CI-DME
Measured: Baseline up to Week 112
Time to First Development of PDR or ASNV
Measured: Baseline up to Week 112
Time to First Development of CI-DME
CI-DME is defined as CST ≥325 μm on SD-OCT.
Measured: Baseline up to Week 112
Time to First Development of a ≥ 2-Step Worsening From Baseline on the ETDRS-DRSS
ETDRS-DRSS classifies diabetic retinopathy (DR) into 12 severity steps ranging from absence of retinopathy to advanced proliferative diabetic retinopathy (PDR). DRSS grades= 10 (DR absent) - 85 (very advanced PDR), DRSS 90 = ungradable. All DRSS values are converted into a 12-level scale, from 1 (DR absent) to 12 (very advanced PDR), allowing derivation of ≥2-step change from baseline for post-baseline assessment. A lower score represents less advanced diabetic retinopathy.
Measured: Baseline up to Week 112
Time to First Development of a ≥ 3-Step Worsening From Baseline on the ETDRS-DRSS
ETDRS-DRSS classifies diabetic retinopathy (DR) into 12 severity steps ranging from absence of retinopathy to advanced proliferative diabetic retinopathy (PDR). DRSS grades= 10 (DR absent) - 85 (very advanced PDR), DRSS 90 = ungradable. All DRSS values are converted into a 12-level scale, from 1 (DR absent) to 12 (very advanced PDR), allowing derivation of ≥2-step change from baseline for post-baseline assessment. A lower score represents less advanced diabetic retinopathy.
Measured: Baseline up to Week 112
Change From Baseline in Best-Corrected Visual Acuity (BCVA) as Measured on the ETDRS Chart Over Time
BCVA was measured at a starting test distance of 4 meters using a set of three Precision Vision^TM or Lighthouse distance acuity charts (modified ETDRS Charts 1, 2, and R). The BCVA letter score ranges from 0 to 100 (best score attainable), and a higher score indicates better visual acuity.
Measured: Baseline up to Week 112
Percentage of Participants Who Lost <15, <10 and <5 Letters in BCVA From Baseline Over Time
BCVA was measured at a starting test distance of 4 meters using a set of three Precision VisionTM or Lighthouse distance acuity charts (modified ETDRS Charts 1, 2, and R). The BCVA letter score ranges from 0 to 100 (best score attainable), and a higher score indicates better visual acuity.
Measured: Baseline up to Week 112
Percentage of Participants With a BCVA Score of 69 Letters (20/40 Approximate Snellen Equivalent) or Better Over Time
BCVA is measured using the ETDRS visual acuity chart starting at a test distance of 4 meters. The number of letters read correctly, Snellen fraction are converted to a decimal scale. There are 11 lines on a standard Snellen chart ranging from 0.1 (20/200) at worst to 2.0 (20/10) at best. 20/20 on the decimal scale is equal to 1.0. The higher the number of letters read correctly (higher number on the decimal scale), the better the vision (or visual acuity). The Snellen equivalent of 20/40 or better is 69 or more letters correctly read in the ETDRS chart.
Measured: Baseline up to Week 112
Change From Baseline in CST as Measured on SD-OCT Over Time
CST is defined as the average thickness of the central 1 millimeter (mm) circle of the ETDRS grid centered on the fovea measured between the internal limiting membrane and the Bruch's membrane. CST is measured using spectral domain optical coherence tomography (SD-OCT). A central reading center graded the SD-OCT digital images. A negative change from baseline value represents a reduction in macular edema.
Measured: Baseline up to Week 112
Change From Baseline in Total Macular Volume (TMV) as Measured on SD-OCT Over Time
Total macular volume in cubic millimeter (mm^3), is the calculated volume from the layers of the retina based off OCT imaging. TMV is measured using SD-OCT.
Measured: Baseline up to Week 112
Number of Participants With Ocular Adverse Events (AEs) and Severity of Ocular AEs in the PDS Arm
An adverse event is any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product,regardless of causal attribution.An adverse event can therefore be any unfavourable \& unintended sign,symptom,or disease temporally associated with the use of a pharmaceutical product,whether considered related to the pharmaceutical product.Preexisting conditions which worsen during a study are also considered as adverse events.Ocular AEs are the events which are localized in the ocular region,graded according to the AE Severity Grading Scale as Mild:discomfort noticed,but no disruption of normal daily activity;Moderate:Discomfort sufficient to reduce or affect normal daily activity;Severe incapacitating with inability to work or to perform normal daily activity.Number of participants with ocular AEs in the study eye are reported in this outcome measure.As prespecified in the protocol, this outcome measure was applicable to participants in the PDS arm only.
Measured: From first dose of study drug through Week 52
Number of Participants With Non-ocular AEs in the PDS Arm
An adverse event is any untoward medical occurrence in a clinical investigation participant subject administered a pharmaceutical product, regardless of causal attribution. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events. As prespecified in the protocol, this outcome measure was applicable to participants in the PDS arm only.
Measured: From first dose of study drug through Week 52
Number of Participants With At Least One Ocular Adverse Events of Special Interest (AESI) in the PDS Arm
An AE is any untoward medical occurrence in a clinical investigation subject administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events. Ocular AESI include vitreous hemorrhage; endophthalmitis; retinal detachment; conjunctival retraction; conjunctival erosion; conjunctival bleb or conjunctival filtering bleb leak; hyphema; cataract; device dislocation. As prespecified in the protocol, this outcome measure was applicable to participants in the PDS arm only.
Measured: From first dose of study drug through Week 52
Number of Participants With At Least One Ocular AESI During the Postoperative Period in the PDS Arm
An AE is any untoward medical occurrence in a clinical investigation subject administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events. Ocular AESI include vitreous hemorrhage; endophthalmitis; retinal detachment; conjunctival retraction; conjunctival erosion; conjunctival bleb or conjunctival filtering bleb leak; hyphema; cataract; device dislocation. The ocular AESIs in the study eye were categorized based on onset as, Postoperative Period: onset within 37 days post initial implantation. As prespecified in the protocol, this outcome measure was applicable to participants in the PDS arm only.
Measured: From Day 1 to Day 37 Postoperative Period
Serum Concentration of Ranibizumab Observed Over Time
Measured: Baseline up to week 112
Pharmacokinetic (PK) Parameter Value Area Under the Concentration
Measured: At Baseline and multiple time points up to week 112
Minimum Serum Concentration (Cmin) of Ranibizumab Observed Over Time
Measured: Baseline up to week 112
Half-Life (t ½) of Ranibizumab Observed Over Time
Measured: Baseline up to Week 112
Number of Participants With Anti-Drug Antibodies (ADAs) to Ranibizumab
The numbers of ADA-positive participants at baseline and after drug administration were to be summarized for participants exposed to Ranibizumab. PDS patients who were ADA positive at the reference visit and ADA titer increased after implant; in this case, the titer of one or more samples collected after implant must be at least 4-fold greater than the titer of the reference visit sample. These patients are considered to have treatment-enhanced ADA responses.
Measured: Baseline up to Week 112
Number of Participants With Neutralizing Antibodies to Ranibizumab
The numbers of neutralizing antibodies positive participants at baseline and after drug administration were to be summarized for participants exposed to Ranibizumab.
Measured: Baseline up to Week 112
Percentage of Participants Who do Not Undergo Supplemental Treatment With Intravitreal Ranibizumab Within Each Refill-Exchange Interval
Measured: Baseline up to Week 112
Percentage of Participants With At Least One AE Related to Study Device or Procedure in the PDS Arm
An AE related to study device or procedure is defined as any adverse event related to the use of an investigational medical device. This includes any adverse events resulting from insufficient or inadequate instructions for use, deployment, implantation, installation, operation, or any malfunction of the investigational medical device and any adverse event resulting from use error or from intentional misuse of the investigational medical device. PDS Device refers to the implant, insertion tool, initial fill needle, refill needle, and explant tool. PDS Procedure refers to the initial fill, implant insertion, refill-exchange, and explantation. As prespecified in the protocol, this outcome measure was applicable to participants in the PDS arm only. Percentages are rounded off to the nearest decimal point.
Measured: From first dose of study drug through Week 52
Percentage of Participants With Serious Adverse Effects Related to Study Device or Procedure in the PDS Arm
An AE related to study device or procedure is defined as any AE related to the use of an investigational medical device \& includes any AE resulting from insufficient or inadequate instructions for use, deployment, implantation, installation, operation, or any malfunction of the investigational medical device \& any AE resulting from use error or from intentional misuse of the investigational medical device. PDS refers to the implant, insertion tool, initial fill needle, refill needle \& explant tool. PDS procedure refers to the initial fill, implant insertion, refill-exchange, \& explantation. Any AE related to study device or procedure that resulted in any of a serious AE such as death, life-threatening illness or injury or permanent impairment of a body structure or a body function was considered serious. As prespecified in the protocol, this outcome measure was applicable to participants in the PDS arm only. Percentages are rounded off to the nearest decimal point.
Measured: From Day 1 up to Week 52
Percentage of Participants With Absence of Intraretinal Fluid, Subretinal Fluid or Both Over Time
Absence of intraretinal fluid and subretinal fluid are measured in the central 1 mm subfield on SD-OCT. Percentages are rounded off to the nearest decimal point.
Measured: Baseline up to Week 112
Percentage of Participants Who Report Preferring PDS Treatment to Intravitreal Ranibizumab Treatment, as Measured by the PDS Patient Preference Questionnaire (PPPQ) at Week 52
The PPPQ is a 3-item questionnaire that captures a participant's preference for treatment (PDS or intravitreal injections), the strength of their preference (very strong, fairly strong, and not very strong) and the reasons for their preference (less worry or nervousness, requires less time for treatment, less discomfort, fewer treatments and other reason). As prespecified in the protocol, this outcome measure was applicable to participants in the PDS arm only. Percentages are rounded off to the nearest decimal point.
Measured: Week 52
Number of Participants With Device Deficiencies
A device deficiency is defined as any inadequacy with respect to labeling, identity, quality, durability, reliability, usability, safety, or performance of an investigational device, including malfunctions, use errors, or inadequacy in information supplied by the manufacturer. As prespecified in the protocol, this outcome measure was applicable to participants in the PDS arm only and device deficiencies were to be recorded in the electronic capture system (EDC) after implementation of protocol Version 2 (i.e., for participants implanted after 14 June 2021).
Measured: Baseline up to Week 52
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Aug 2020
- Study start10 Aug 2020
- Primary completion3 Oct 2022
- Study completion23 Feb 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Diabetic RetinopathyStudies of the same condition, open and under way.
- More trials run by Hoffmann-La RocheThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 174 participants (actual)
Sponsor and investigators
- Lead sponsor
- Hoffmann-La Roche
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Clinical Trials, Study director, Hoffmann-La Roche
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04503551
- Sponsor's protocol ID
- GR41675
- Acronym
- PAVILION
- Status last verified
- Mar 2026
- First submitted
- 5 Aug 2020
- Last updated
- 2 Apr 2026
- Results posted
- Yes, on ClinicalTrials.gov
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: For eligible studies, qualified researchers may request access to individual patient level clinical data. See Roche's commitment to transparency of clinical study information here: https://go.roche.com/data\_sharing
Publications
Pieramici DJ, Awh CC, Chang M, Emanuelli A, Holekamp NM, Hu AY, Suner IJ, Wykoff CC, Brittain C, Howard D, Quezada-Ruiz C, Santhanakrishnan A, Latkany P. Port Delivery System With Ranibizumab vs Monitoring in Nonproliferative Diabetic Retinopathy Without Macular Edema: The Pavilion Randomized Clinical Trial. JAMA Ophthalmol. 2025 Apr 1;143(4):317-325. doi: 10.1001/jamaophthalmol.2025.0001.
PubMed 40048178
Study at a glance
From the registry record, last updated by the sponsor on 2 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase III, Multicenter, Randomized Study of the Efficacy, Safety, and Pharmacokinetics of the Port Delivery System With Ranibizumab in Patients With Diabetic Retinopathy
- ClinicalTrials.gov ID
- NCT04503551
- Acronym / sponsor ID
- PAVILION / GR41675
- Conditions
- Diabetic Retinopathy
- Keywords
- Port Delivery System; ranibizumab; Diabetic Retinopathy; anti-VEGF, nonproliferative diabetic retinopathy, retina, vision loss, retinal disease, eye disease
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 174 participants (actual)
- Lead sponsor
- Hoffmann-La RocheIndustry (pharma, biotech, devices)
- Study start
- 10 Aug 2020 (actual)
- Primary completion
- 3 Oct 2022 (actual)
- Study completion
- 23 Feb 2026 (actual)
- First posted
- 7 Aug 2020 (actual)
- Results
- Posted 25 Nov 2025
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Study GR41675 is a Multicenter, Randomized Study in Participants with Diabetic Retinopathy (DR) Without Center-Involved Diabetic Macular Edema (CI-DME) to Evaluate the Efficacy, Safety of the Port Delivery System with Ranibizumab (PDS) Relative to the Comparator Arm
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| PDS Arm | Experimental | Drug: PDS Implant Pre-Filled with 100 mg/mL Ranibizumab, Drug: Intravitreal Ranibizumab 0.5 mg InjectionParticipants randomized to the PDS arm will receive two intravitreal ranibizumab injections and will then have the PDS implant (pre-filled with ranibizumab) surgically inserted. PDS implant refill-exchange procedures will be performed on a fixed interval every 36-weeks (Q36W) thereafter |
| Comparator Arm | Other | Drug: PDS Implant Pre-Filled with 100 mg/mL Ranibizumab, Drug: Intravitreal Ranibizumab 0.5 mg InjectionParticipants randomized to the comparator arm will undergo study visits every 4 weeks (Q4W) for comprehensive clinical monitoring until they receive the PDS implant (pre-filled with ranibizumab). PDS implant refill-exchange procedures will be performed on a fixed interval Q36W thereafter. Participants will be eligible to receive intravitreal ranibizumab 0.5 mg injections if treatment eligibility criteria are met. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Age ≥18 years at time of signing Informed Consent Form
- Documented diagnosis of diabetes mellitus (Type 1 or Type 2)
- HbA1c level of ≤12% within 2 months prior to screening or at screening
- Moderately severe or severe NPDR (ETDRS-DRSS level 47 or 53)
- BCVA score of ≥ 69 letters (20/40 approximate Snellen equivalent or better)
Key exclusion criteria (24 listed)
- Uncontrolled blood pressure
- Cerebrovascular accident or myocardial infarction within 6 months prior to randomization
- Atrial fibrillation diagnosis or worsening within 6 months prior to randomization
- Current systemic treatment for a confirmed active systemic infection
- Renal failure requiring renal transplant, hemodialysis, or peritoneal dialysis, or anticipated to require hemodialysis or peritoneal dialysis at any time during the study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| PDS Implant Pre-Filled with 100 mg/mL RanibizumabWill be administered as per the schedule described in individual arm. | Drug | Comparator Arm, PDS Arm |
| Intravitreal Ranibizumab 0.5 mg InjectionWill be administered as per the schedule described in individual arm. | Drug | Comparator Arm, PDS Arm |
Primary outcome
Percentage of Participants With a ≥2-Step Improvement From Baseline on the Early Treatment Diabetic Retinopathy Study-Diabetic Retinopathy Severity Scale (ETDRS-DRSS) at Week 52
Time frame: Baseline, Week 52
ETDRS-DRSS classifies diabetic retinopathy (DR) into 12 severity steps ranging from absence of retinopathy to advanced proliferative diabetic retinopathy (PDR). DRSS grades= 10 (DR absent) - 85 (very advanced PDR), DRSS 90 = ungradable. All DRSS values are converted into a 12-level scale, from 1 (DR absent) to 12 (very advanced PDR), allowing derivation of ≥2-step change from baseline for post-baseline assessment. A lower score represents less advanced diabetic retinopathy. The Cochran-Mantel Haenszel (CMH) method was used for analysis and weighted percentage of participants are estimated and reported in this outcome measure. Participants receiving supplemental treatments, prohibited therapy, or panretinal photocoagulation (PRP) were considered non-responders. Missing values not preceded by these intercurrent events were imputed using the last observation carried forward method. SD OCT= spectral-domain optical coherence tomography.
34 secondary outcomes
Rate of Participants Developing a Vision-Threatening Complication or Center-involved Diabetic Macular Edema (CI-DME) Through Week 52
Time frame: From Baseline through Week 52
Rate of Participants Developing PDR or ASNV Through Week 52
Time frame: From Baseline through Week 52
Rate of Participants Developing CI-DME Through Week 52
Time frame: From Baseline through Week 52
Rate of Participants Developing a ≥ 2-Step Worsening From Baseline on the ETDRS-DRSS Through Week 52
Time frame: From Baseline through Week 52
Percentage of Participants With a ≥ 3-Step Improvement From Baseline on the ETDRS-DRSS at Week 52
Time frame: Week 52
Rate of Participants Developing a ≥ 3-Step Worsening From Baseline on the ETDRS-DRSS Through Week 52
Time frame: From Baseline through Week 52
Percentage of Participants With a ≥ 2-Step Improvement From Baseline on the ETDRS-DRSS Over Time
Time frame: Baseline up to Week 112
Percentage of Participants With a ≥ 3-step Improvement From Baseline on the ETDRS-DRSS Over Time
Time frame: Baseline up to Week 112
Time to First Development of Either PDR, ASNV, or CI-DME
Time frame: Baseline up to Week 112
Time to First Development of PDR or ASNV
Time frame: Baseline up to Week 112
Time to First Development of CI-DME
Time frame: Baseline up to Week 112
Time to First Development of a ≥ 2-Step Worsening From Baseline on the ETDRS-DRSS
Time frame: Baseline up to Week 112
Time to First Development of a ≥ 3-Step Worsening From Baseline on the ETDRS-DRSS
Time frame: Baseline up to Week 112
Change From Baseline in Best-Corrected Visual Acuity (BCVA) as Measured on the ETDRS Chart Over Time
Time frame: Baseline up to Week 112
Percentage of Participants Who Lost <15, <10 and <5 Letters in BCVA From Baseline Over Time
Time frame: Baseline up to Week 112
Percentage of Participants With a BCVA Score of 69 Letters (20/40 Approximate Snellen Equivalent) or Better Over Time
Time frame: Baseline up to Week 112
Change From Baseline in CST as Measured on SD-OCT Over Time
Time frame: Baseline up to Week 112
Change From Baseline in Total Macular Volume (TMV) as Measured on SD-OCT Over Time
Time frame: Baseline up to Week 112
Number of Participants With Ocular Adverse Events (AEs) and Severity of Ocular AEs in the PDS Arm
Time frame: From first dose of study drug through Week 52
Number of Participants With Non-ocular AEs in the PDS Arm
Time frame: From first dose of study drug through Week 52
Number of Participants With At Least One Ocular Adverse Events of Special Interest (AESI) in the PDS Arm
Time frame: From first dose of study drug through Week 52
Number of Participants With At Least One Ocular AESI During the Postoperative Period in the PDS Arm
Time frame: From Day 1 to Day 37 Postoperative Period
Serum Concentration of Ranibizumab Observed Over Time
Time frame: Baseline up to week 112
Pharmacokinetic (PK) Parameter Value Area Under the Concentration
Time frame: At Baseline and multiple time points up to week 112
Minimum Serum Concentration (Cmin) of Ranibizumab Observed Over Time
Time frame: Baseline up to week 112
Half-Life (t ½) of Ranibizumab Observed Over Time
Time frame: Baseline up to Week 112
Number of Participants With Anti-Drug Antibodies (ADAs) to Ranibizumab
Time frame: Baseline up to Week 112
Number of Participants With Neutralizing Antibodies to Ranibizumab
Time frame: Baseline up to Week 112
Percentage of Participants Who do Not Undergo Supplemental Treatment With Intravitreal Ranibizumab Within Each Refill-Exchange Interval
Time frame: Baseline up to Week 112
Percentage of Participants With At Least One AE Related to Study Device or Procedure in the PDS Arm
Time frame: From first dose of study drug through Week 52
Percentage of Participants With Serious Adverse Effects Related to Study Device or Procedure in the PDS Arm
Time frame: From Day 1 up to Week 52
Percentage of Participants With Absence of Intraretinal Fluid, Subretinal Fluid or Both Over Time
Time frame: Baseline up to Week 112
Percentage of Participants Who Report Preferring PDS Treatment to Intravitreal Ranibizumab Treatment, as Measured by the PDS Patient Preference Questionnaire (PPPQ) at Week 52
Time frame: Week 52
Number of Participants With Device Deficiencies
Time frame: Baseline up to Week 52
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Apr 2026.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 40048178Pieramici DJ, Awh CC, Chang M, Emanuelli A, Holekamp NM, Hu AY, Suner IJ, Wykoff CC, Brittain C, Howard D, Quezada-Ruiz C, Santhanakrishnan A, Latkany P. Port Delivery System With Ranibizumab vs Monitoring in Nonproliferative Diabetic Retinopathy Without Macular Edema: The Pavilion Randomized Clinical Trial. JAMA Ophthalmol. 2025 Apr 1;143(4):317-325. doi: 10.1001/jamaophthalmol.2025.0001.
- Individual participant dataSharing planned: Yes. For eligible studies, qualified researchers may request access to individual patient level clinical data. See Roche's commitment to transparency of clinical study information here: https://go.roche.com/data_sharing
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Clinical Trials study director
Hoffmann-La Roche
65 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing PDS Implant Pre-Filled with 100 mg/mL Ranibizumab and Intravitreal Ranibizumab 0.5 mg Injection in people with Diabetic Retinopathy, run by Hoffmann-La Roche at 65 sites in 2 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 24 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 2 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 65 sites in United States, Puerto Rico. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 25 Nov 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percentage of Participants With a ≥2-Step Improvement From Baseline on the Early Treatment Diabetic Retinopathy Study-Diabetic Retinopathy Severity Scale (ETDRS-DRSS) at Week 52 (time frame: Baseline, Week 52). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04503551, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Apr 2026.