Skip to main content
OpenTrials
Completed

NCT Number: NCT05301751

A Single Ascending Dose Cohort Study of AG-73305 in DME Patients

This is a multi-centered, open-labeled, single ascending-dose-cohort study to evaluate the safety and efficacy of 4 dose cohorts of AG-73305 administered by intravitreal injection in patients with diabetic macular edema (DME).

The objectives of this study were to evaluate the safety, tolerability, duration of effect, systemic pharmacokinetic and immunogenicity profiles of ascending doses of AG-73305 administered by intravitreal injection to patients with DME. Pharmacodynamic endpoints (e.g., best-corrected visual acuity [BCVA], spectral domain optical coherence tomography [SD-OCT], and optical coherence tomography angiography [OCT-A]) were evaluated over 6 months post-treatment. The maximum tolerated dose or the highest administered dose was evaluated for future studies.

Completed

Looking for future studies?

Notify Me

Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Retina Vitreous Associates of Florida, St. Petersburg, Florida, United States

Loading trial locations.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Male or female, 18 years of age or older at the screening visit
  • Prior diagnosis of diabetes mellitus (Type 1 or Type 2) as defined by World Health Organization or American Diabetes Association
  • Presence of center-involving DME in the study eye with CST ≥ 325 μm
  • Visual acuity loss in the study eye attributed to DME with screening and baseline ETDRS BCVA letter score of 20 to 55 (20/400 to 20/80 Snellen equivalent) in the sentinel patients and 35 to 70 (20/200 to 20/40 Snellen equivalent) in the non-sentinel patients
  • Cohort 1: Previously treated with an anti-VEGF in the study eye; Cohorts 2, 3, and 4: Previously treated or treatment-naïve to the study eye

Exclusion criteria

  • Uncontrolled diabetes mellitus, defined as hemoglobin A1c > 12.0% at Screening
  • Uncontrolled hypertension with systolic blood pressure ≥ 180 mmHg and/or diastolic blood pressure ≥ 100 mmHg at Screening or Baseline
  • Chronic renal disease
  • Any active infection in either eye
  • Any anti-vascular endothelial growth factor (VEGF) treatment in the study eye within 6 to 8 weeks prior to Baseline
  • Use of Ozurdex (dexamethasone) within 6 months prior to Baseline or any use of Iluvien (fluocinolone acetonide) in the study eye
  • Uncontrolled intraocular pressure (IOP), defined as an IOP > 25 mmHg, despite anti-glaucoma medications in the study eye at the time of screening or controlled glaucoma that requires management with > 2 topical hypotensive medications
  • Any anti-integrin therapy (e.g., Xiidra) within 60 days before baseline in the study eye

Treatment and study plan

AG-73305

Biological

drug product solution

Primary outcomes

  1. Mean Change From Baseline in Best Corrected Visual Acuity (BCVA)

    Time frame: 1 month after dosing

    BCVA assessments were performed at all visits utilizing ETDRS charts to assess changes in vision over time. The charts were designed for use at 4 meters. BCVA assessments were performed by certified technicians to minimize bias.

Secondary outcomes

  1. Mean Change From Baseline in Central Subfield Thickness (CST)

    Time frame: 1 month after dosing

    SD-OCT imaging was performed at all visits utilizing Heidelberg Spectralis imaging equipment to assess changes over time in the structural details of the posterior segment of the eye. All images were graded by a central reading center.

Sponsors and collaborators

Lead sponsor

Allgenesis Biotherapeutics Inc.

Industry

Collaborators

  • Lexitas Pharma Services, Inc.

Registry information

Official study title

A Multicenter, Open-Labeled, Phase 2a Study Evaluating the Safety, Tolerability, and Efficacy of Intravitreal AG-73305 in Patients With Diabetic Macular Edema

Important dates

Study start
2022
Primary completion
2023
Study completion
2023
First posted
Mar 31, 2022
Registry last updated
Oct 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.

Published trials that share one or more normalized conditions with this study.