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OpenTrials
Completed

NCT Number: NCT05383209

Study of EYP-1901 in Patients With Nonproliferative Diabetic Retinopathy (NPDR)

A prospective, randomized, double-masked study that evaluated the ocular efficacy and safety of two doses of the EYP-1901 intravitreal (IVT) insert compared to sham.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

EyePoint Investigative Site, Phoenix, Arizona, United States

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About this study

This study evaluated the ocular efficacy and safety of two doses of the EYP-1901 IVT insert compared to sham using a randomized double-masked trial design.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Participants must have a hemoglobin A1c <=12%
  • Study eye with moderately severe to severe Non proliferative Diabetic Retinopathy (NPDR) (based on the Diabetic Retinopathy Severity Scale (DRSS) levels 47 or 53)
  • Best corrected visual acuity (BCVA) using Early Treatment Diabetic Retinopathy Study (ETDRS) letter score in the study eye of >=69 letters (approximate Snellen equivalent of 20/40 or better).

Exclusion criteria

  • Presence of any active Center involved-diabetic macular edema in the study eye as determined by the Investigator on clinical examination, or within the central subfield thickness (CST) of the study eye, with a CST threshold greater than 320 microns.
  • Any evidence or documented history of prior focal or grid laser photocoagulation or any pan-retinal photocoagulation (PRP) in the study eye in the last 12 months.

Treatment and study plan

EYP-1901

Drug

EYP-1901 will be administered to the study eye by a single injection through the pars plana using a pre-loaded applicator with a 22-gauge needle. Each EYP-1901 IVT insert has been designed to deliver vorolanib into the vitreous humor for approximately 6 to 9 months.

Other names: Vorolanib

Sham IVT

Other

Sham injections will be used to maintain masking of investigational EYP-1901 therapy for study subjects.

Primary outcomes

  1. Percentage of Subjects Improved >=2 Steps From Baseline in the DRSS Score at Week 36

    Time frame: Baseline (Day 1) and Week 36

    The DRSS used to describe overall retinopathy severity as well as the change in severity over time in the study eye. Severity ranges from level 10 (diabetic retinopathy absent) to level 85 (advanced proliferative diabetic retinopathy (PDR): posterior fundus obscured, or center of macula detached). Here, DRSS describes severity level 47 (moderately severe NPDR) and level 53 (severe NPDR) at Week 36 from baseline.

Secondary outcomes

  1. Percentage of Subjects Improved >=2 Steps From Baseline in the DRSS Score at Week 24 and Week 48

    Time frame: Baseline (Day 1), Week 24, and Week 48

    The DRSS used to describe overall retinopathy severity as well as the change in severity over time in the study eye. Severity ranges from level 10 (diabetic retinopathy absent) to level 85 (advanced proliferative diabetic retinopathy (PDR): posterior fundus obscured, or center of macula detached). Here, DRSS describes severity levels 47 (moderately severe NPDR) and 53 (severe NPDR) at Weeks 24 and 48 from baseline.

  2. Percentage of Subjects Improved >=2 Steps and >=3 Steps From Baseline in DRSS Score at Weeks 24, 36 and 48

    Time frame: Baseline (Day 1) and Weeks 24, 36 and 48

    The DRSS used to describe overall retinopathy severity as well as the change in severity over time in the study eye. Severity ranges from level 10 (diabetic retinopathy absent) to level 85 (advanced PDR: posterior fundus obscured, or center of macula detached). Here, DRSS describes severity level 47 (moderately severe NPDR) and level 53 (severe NPDR) at Weeks 24, 36 and 48 from baseline.

  3. Percentage of Subjects Worsened >=2 Steps and >=3 Steps From Baseline in DRSS Score at Weeks 24, 36 and 48

    Time frame: Baseline (Day 1) and Weeks 24, 36 and 48

    The DRSS used to describe overall retinopathy severity as well as the change in severity over time in the study eye. Severity ranges from level 10 (diabetic retinopathy absent) to level 85 (advanced PDR: posterior fundus obscured, or center of macula detached). Here, DRSS describes severity level 47 (moderately severe NPDR) and level 53 (severe NPDR) at Weeks 24, 36 and 48 from baseline.

  4. Percentage of Subjects Who Developed a Vision-Threatening Complication Due to Diabetic Retinopathy at Weeks 24, 36 and 48

    Time frame: Weeks 24, 36 and 48

    The vision threatening complications in the study eye due to diabetic retinopathy were indicated by the presence of "Vitreous hemorrhage" or the presence of "Tractional retinal detachment" reported on the Ocular Examination - Dilated Ophthalmoscopy CRF (PDR events), and "Neovascularization for the Iris" answered as "Yes" or "Neovascularization for the Angle" answered as "Yes" per the Ocular Examination - Slit Lamp Biomicroscopy CRF (anterior segment neovascularization (ASNV) events).

  5. Percentage of Subjects Who Developed Center Involved-Diabetic Macular Edema (CI-DME) at Weeks 24, 36 and 48

    Time frame: Weeks 24, 36 and 48

    The CI-DME in the study eye occurred when a treatment emergent adverse event (TEAE) with a mapped preferred term of 'Cystoid macular oedema', 'Diabetic retinal oedema', or 'Macular oedema' occurred in the study eye, in combination with the temporally closest centrally read custom algorithm CST measurement being greater than or equal to 320 microns.

  6. Time to Develop Any Neovascular Vision Threatening Complication (PDR/ASNV) at Weeks 24, 36 and 48

    Time frame: Weeks 24, 36 and 48

    Time to develop any PDR/ASNV was computed as the date of the first development of PDR/ASNV in the study eye minus the date of study treatment administration plus 1 day, divided by 7 days per week.

  7. Time to Develop CI-DME Through Weeks 24, 36 and 48

    Time frame: Weeks 24, 36 and 48

    The occurrence of a CI-DME event in the study eye was identified via examination of centrally read custom algorithm CST data and adverse events.

  8. Percentage of Subjects Who Received Anti-Vascular Endothelial Growth Factor (VEGF) or Additional Standard of Care Intervention Due to Ocular Diabetic Complications at Weeks 24, 36 and 48

    Time frame: Weeks 24, 36 and 48

    Percentage of subjects who received anti-VEGF or additional standard of care intervention due to ocular diabetic complications in the study eye are reported. Anti-VEGF use was identified in reported concomitant medication data.

  9. Percentage of Subjects Who Received PRP at Weeks 24, 36 and 48

    Time frame: Weeks 24, 36 and 48

    Percentage of subjects who received PRP in the study eye, inclusive of subjects undergoing vitrectomy with endo-laser are reported.

  10. Area Under the Curve (AUC) for Change From Baseline in BCVA at Weeks 24, 36 and 48

    Time frame: Weeks 24, 36 and 48

    The AUC for change from baseline in BCVA in the study eye were summarized. The AUC through each time point of interest was computed using the trapezoidal rule normalized to months, with a final unit of letters.

  11. Plasma Concentration of EYP-1901 and X-297 at Weeks 24, 36 and 48

    Time frame: Weeks 24, 36 and 48

    Blood samples were collected at the specific visits for the Pharmacokinetic (PK) analysis of EYP-1901 and its main metabolite concentrations.

  12. Number of Subjects With Ocular and Non-Ocular TEAEs and Serious TEAEs up to Week 48

    Time frame: TEAEs were collected from the study drug administration (Day 1) up to end of the study, approximately 48 weeks.

    An adverse event (AE) is defined as any new untoward medical occurrence or worsening of a pre-existing medical condition in a patient or clinical investigation subject administered an investigational or marketed (medicinal) product and that does not necessarily have a causal relationship with the product. A serious AE is any AE that results in one of the following outcomes: death; life-threatening; requires in-patient hospitalization; results in a persistent or significant disability/incapacity; congenital anomaly/birth defect; other important medical event. The TEAEs are AEs that occur after the first dose of study treatment administration.

Sponsors and collaborators

Lead sponsor

EyePoint Pharmaceuticals, Inc.

Industry

Registry information

Official study title

A Phase 2, Multicenter, Prospective, Double-masked, Parallel Study of EYP-1901, a Tyrosine Kinase Inhibitor (TKI), Compared to Sham for the Improvement of Moderately Severe to Severe Nonproliferative Diabetic Retinopathy (NPDR)

Important dates

Study start
2022
Primary completion
2024
Study completion
2024
First posted
May 20, 2022
Registry last updated
Aug 15, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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