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A Study in People With Diabetic Macular Edema to Test How Well Different Doses of BI 3812465 Are Tolerated

A First-in-human, Open-label (Part 1), Randomized (Part 2), Phase I/IIa Trial to Study Safety and Tolerability of Multiple Rising Intravitreal Doses of BI 3812465 in Patients With Center-involved Diabetic Macular Edema

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07553429
Enrollment
49
Registered
2026-04-28
Start date
2026-05-14
Completion date
2027-07-06
Last updated
2026-09-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetic Macular Edema

Brief summary

This study is open to adults with diabetic macular edema that involves the center of the eye. The purpose of this study is to find out how well different doses of a medicine called BI 3812465 are tolerated by people with this condition. This is the first time BI 3812465 is given to humans. This study has 2 parts. In Part 1, a small number of participants receive low, medium, or high doses of BI 3812465. The first participants to start the study get low doses of BI 3812465. Participants who start later get higher doses only if the lower doses were tolerated. In Part 2, a larger number of participants are placed into low, medium, or high dose groups. Participants in both parts of the study get BI 3812465 as injections into the back of the eye for a total of 3 eye injections. Participants are in the study for up to 7 months. During this time, they visit the study site 19 times. Where possible, some visits can be done at the participant's home instead of the study site. At study visits, the doctors check the severity of participants' eye condition and note any health problems that could have been caused by BI 3812465.

Interventions

BIOLOGICALLow dose BI 3812465

BI 3812465

BIOLOGICALMedium dose BI 3812465

BI 3812465

BIOLOGICALHigh dose BI 3812465

BI 3812465

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Masking description

Part 1 is open-label and Part 2 is single-blinded to the participant.

Intervention model description

Part 1 is conducted in model-based dose escalation design and Part 2 is a randomized, multi arm, parallel group, active treatment only dose expansion design, with no placebo or control arm.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

All participants, study eye: * Center-involved diabetic macular edema (CI-DME) defined as CST ≥320 μm (micrometers) at Screening, as confirmed on spectral-domain optical coherence tomography (SD-OCT) and confirmed by the central reading center (CRC). * Sufficiently clear ocular media, adequate pupillary dilation, and fixation, to permit quality fundus imaging. All participants: * Diagnosis of diabetes mellitus (DM) type 1 or type 2 under regular treatment, with glycated hemoglobin HbA1c \<12%. * Be willing and able to understand the study procedures and the risks involved. * Signed and dated written informed consent in accordance with international council for harmonization - good clinical practices (ICH-GCP) and local legislation prior to admission to the trial and any trial related procedures. * Age ≥18 years (or above legal age according to local legislation) at time of signing the informed consent form (ICF). * Male or female participants * Woman of childbearing potential (WOCBP) must be ready and able to use highly effective methods of birth control * For men, contraception (condom or complete abstinence) should be used as precaution to prevent pregnancy of a partner and/or exposure of an existing embryo or fetus. Further inclusion criteria apply.

Exclusion criteria

All participants, study eye: * Only one functional eye, even if that eye was otherwise eligible for the study. Fellow eye must have sufficient visual function per the investigator's medical judgment in consultation with the participant, to support the participant's daily functioning. * Evidence of active proliferative diabetic retinopathy (PDR). * Evidence of active retinal neovascularization (NV) clinical exam and/or Ultra-Widefield Color Fundus Photography ((UWF-)CFP) within the early treatment diabetic retinopathy study (ETDRS) 7-field, confirmed by the CRC grading. Potential participants with NV outside of the ETDRS 7-field on ultra-widefield imaging may be included in the trial if this condition, based on the assessment of the investigator, does not require acute treatment. * Evidence of active NV of the iris (small iris tufts are not an exclusion) or in the anterior chamber angle. * Additional eye disease in the study eye that could compromise trial participation: * Uncontrolled glaucoma or intraocular pressure (IOP) \>24 mmHg despite treatment * History of high myopia \>8 diopters in the study eye * Anterior segment and vitreous abnormalities in the study eye that would preclude adequate detection of intraocular inflammation (IOI) or other pathologies * Ocular conditions which, at discretion of the investigator, might interfere with the outcome of the trial. * Previously received ocular gene therapy or cell therapy. * Corticosteroid use locally or systemically within 1 month prior to Screening. * Aphakia or total absence of the posterior capsule. Yttrium aluminum garnet (YAG) laser capsulotomy may be permitted, if performed more than 2 months prior to Day 1. Further

Design outcomes

Primary

MeasureTime frame
Part 1: Occurrence of dose limiting events (DLEs) from first investigational medicine product (IMP) administration until end of study (EOS)Up to 169 days.
Part 2: Occurrence of ocular adverse events (AEs) in the study eye from first IMP administration until EOSUp to 169 days.

Secondary

MeasureTime frame
Occurrence of AEs from first IMP administration until EOSUp to 169 days.
Occurrence of serious adverse events (SAEs) from first IMP administration until EOSUp to 169 days.
Part 1: Occurrence of ocular AEs in the study eye from first IMP administration until EOSUp to 169 days.

Countries

Puerto Rico, United States

Contacts

CONTACTBoehringer Ingelheim
clintriage.rdg@boehringer-ingelheim.com1-800-243-0127

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 4, 2026