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Diabetic RetinopathyPhase 1/2PARTRIDGENCT04919499

A Study of BI 765128 in Patients With an Eye Condition Called Diabetic Macular Ischemia Who Have Received Laser Treatment

A Phase 1/2 study testing BI 765128 in people with Diabetic Retinopathy, run by Boehringer Ingelheim at 25 sites in 6 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

This study is open to adults with diabetic macular ischemia who have received laser treatment. The main purpose of this study is to find out whether people with diabetic macular ischemia can tolerate a medicine called BI 765128. In this study, BI 765128 is given to people for the first time. The study has 2 parts. 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?
BI 765128
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
46 participants
Where
25 sitesin 6 countries
Study dates
30 Jul 2021to 7 Aug 2023
Phase
Phase 1/2
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

  • Part A
  • Panretinal photocoagulation-treated diabetic retinopathy (DR) patients with either no or inactive retinal neovascularization per investigator judgement in the study eye
  • Male or female subjects of age ≥ 18 years
  • Evidence of diabetic macular ischemia (DMI) per investigator´s judgement, defined as any degree of disruption of retinal vascularity in optical coherent tomography angiography (OCTA)
  • Glycosylated Hemoglobin, Type A1C (HbA1c) of ≤ 12.0%
  • Best-corrected visual acuity (VA) ≤75 letters (20/32) in the study eye
Show all 18Show fewer
  • Best corrected visual acuity (VA) in the non-study eye must be equal to or better than best corrected VA in the study eye. If both eyes are eligible and have identical best corrected VA the investigator may select the study eye.
  • Women of childbearing potential (WOCBP) and men able to father a child must be ready and able to use two methods of contraception with at least one of them being a highly effective method of birth control per ICH M3 (R2) that result in a low failure rate of less than 1% per year when used consistently and correctly.
  • Signed and dated written informed consent in accordance with International Council for Harmonisation-Good Clinical Practice (ICH-GCP) and local legislation prior to admission to the trial
  • Part B:
  • Panretinal photocoagulation-treated diabetic retinopathy (DR) patients with either no or inactive retinal neovascularization per investigator judgement
  • Male or female subjects of age ≥ 18 years
  • Presence of significant diabetic macular ischemia (DMI): Large foveal avascular zone (FAZ) defined as those with ≥0.5mm2 area present on optical coherent tomography angiography (OCTA). If FAZ is <0.5mm2 then an enlarged peri-foveal inter-capillary space in at least 1 quadrant will be sufficient.
  • Glycosylated Hemoglobin, Type A1C (HbA1c) of ≤ 12.0%
  • Best-corrected visual acuity (VA) ≤85 letters (20/20) in the study eye
  • If both eyes are eligible, the investigator may select either eye to be the study eye.
  • Women of childbearing potential (WOCBP) and men able to father a child must be ready and able to use two methods of contraception with at least one of them being a highly effective method of birth control per ICH M3 (R2) that result in a low failure rate of less than 1% per year when used consistently and correctly.
  • Signed and dated written informed consent in accordance with International Council for Harmonisation-Good Clinical Practice (ICH-GCP) and local legislation prior to admission to the trial

Who cannot join

  • Part A:
  • Subjects receiving intravitreal (IVT) injections for active Diabetic Macular Edema (DME) (anti-vascular endothelial growth factor (VEGF), steroids) and macular laser in the previous 3 months to screening in the study eye
  • Subjects receiving anti-VEGF IVT injections for active diabetic retinopathy (DR) in the previous 3 months to screening in the study eye
  • Current or planned use of medications known to be toxic to the retina, lens or optic nerve (e.g. desferoxamine, chloroquine/hydrochloroquine, chlorpromazine, phenothiazines, tamoxifen, nicotinic acid, and ethambutol)
  • Additional progressive eye disease in the study eye that could compromise best corrected visual acuity (VA) (best corrected visual acuity (BCVA)), uncontrolled glaucoma (intra-ocular pressure (IOP)>24), history of high myopia > 8 diopters in the study eye. Anterior segment and vitreous abnormalities in the study eye that would preclude adequate observation with spectral domain optical coherence tomography (SD-OCT) and optical coherent tomography angiography (OCTA).
  • Any intraocular surgery in the study eye within 3 months prior to screening
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  • Glaucoma tube shunts
  • Aphakia or total absence of the posterior capsule. Yttrium aluminum garnet (YAG) laser capsulotomy permitted, if completed more than 3 months prior to screening, in the study eye
  • Subjects not expected to comply with the protocol requirements or not expected to complete the trial as scheduled (e.g. chronic alcohol or drug abuse or any other condition that, in the investigator´s opinion, makes the subject an unreliable trial subject) Further exclusion criteria apply
  • Part B:
  • Diabetic Macular Edema (DME), defined as a Central Subfield Thickness (CST) ≥ 305μm for men and ≥ 290 μm for women (Optovue Angiovue) in the study eye
  • Subjects receiving intravitreal (IVT) injections for active DME (anti-vascular endothelial growth factor (VEGF), steroids) and macular laser in the previous 3 months to screening in the study eye
  • Subjects receiving anti-VEGF intravitreal IVT injections for active Diabetic Retinopathy (DR) in the previous 3 months to screening in the study eye
  • Heavily lasered macula in the study eye per investigator judgement
  • History of vitrectomy in the study eye
  • Epiretinal membrane with extended foveal contour distortion in the study eye
  • Current or planned use of medications known to be toxic to the retina, lens or optic nerve (e.g. desferoxamine, chloroquine/hydrochloroquine, chlorpromazine, phenothiazines, tamoxifen, nicotinic acid, and ethambutol)
  • Additional eye disease in the study eye that could compromise best corrected VA (BCVA). Significant visual field loss, uncontrolled glaucoma (IOP>24), clinically significant diabetic maculopathy, history of ischemic optic neuropathy or retinal vascular occlusion, symptomatic vitreomacular traction, or genetic disorders such as retinitis pigmentosa; history of high myopia > 8 diopters in the study eye. Anterior segment and vitreous abnormalities in the study eye that would preclude adequate observation with SD-OCT and OCTA Further exclusion criteria apply

Trial locations and contacts

25 sites in 6 countries.

25 sites in 6 countries

United States11 sites
  • Austin Research Center for Retina, PLLC

    Austin, Texas, 78705

  • Austin Clinical Research, LLC

    Austin, Texas, 78750

  • California Retina Consultants

    Bakersfield, California, 93309

  • Retina Consultants of Texas

    Bellaire, Texas, 77401

  • Meridian Clinical Research, LLC

    Cincinnati, Ohio, 45219

  • Erie Retina Research, LLC

    Erie, Pennsylvania, 16507

  • Cumberland Valley Retina Consultants, PC.

    Hagerstown, Maryland, 21740

  • Mid Atlantic Retina

    Philadelphia, Pennsylvania, 19107

  • Retinal Consultants Medical Group

    Sacramento, California, 95825

  • Retina Consultants of Texas

    The Woodlands, Texas, 77384

  • Bay Area Retina Associates - Walnut Creek

    Walnut Creek, California, 94598

Other trials in United States

United Kingdom6 sites
  • Bristol Eye Hospital

    Bristol, BS1 2LX

  • Royal Liverpool University Hospital

    Liverpool, L7 8XP

  • Moorfields Eye Hospital

    London, EC1V 2PD

  • Central Middlesex Hospital

    London, NW10 7NS

  • Oxford Eye Hospital

    Oxford, OX3 9DU

  • Sunderland Eye Infirmary

    Sunderland, SR2 9HP

Other trials in United Kingdom

Spain4 sites
  • Hospital Dos de Maig

    Barcelona, 08025

  • Hospital Vall d'Hebron

    Barcelona, 08035

  • Hospital Clínico San Carlos

    Madrid, 28040

  • Hospital Miguel Servet

    Zaragoza, 50009

Other trials in Spain

Australia2 sites
  • Adelaide Eye and Retina Centre

    Adelaide, South Australia, 5000

  • Hobart Eye Surgeons

    Hobart, Tasmania, 7008

Other trials in Australia

Latvia1 site
  • Riga East University Hospital

    Riga, 1006

Other trials in Latvia

Netherlands1 site
  • Leids Universitair Medisch Centrum (LUMC)

    Leiden, 2333 ZA

Other trials in Netherlands

About this study

Official title: A First in Human Trial to Study Safety and Tolerability of Single Rising Intravitreal Doses (oPen Label, Non-randomized, Uncontrolled) and in Addition the Early Biological Response of mulTiple Intravitreal Doses (Double-masked, RandomIzed, Sham-controlleD) of BI 765128 in Panretinal photocoaGulation (PRP) Treated Diabetic rEtinopathy (DR) Patients With Diabetic Macular Ischemia (DMI) - the PARTRIDGE Study

This study is open to adults with diabetic macular ischemia who have received laser treatment. The main purpose of this study is to find out whether people with diabetic macular ischemia can tolerate a medicine called BI 765128.

In this study, BI 765128 is given to people for the first time.

Read more

The study has 2 parts. Part A tests 3 doses of BI 765128. Participants get either a low, medium or high dose of BI 765128 as a single injection into the eye. If participants tolerate it well, the highest dose will be used in part B.

In part B, participants are put into 2 groups randomly, which means by chance. 1 group gets BI 765128 as injection into the eye. The other group gets sham injections. A sham injection means that it is not a real injection and contains no medicine. Participants cannot tell whether they get the real injection or a sham injection. In this part, participants receive study treatment once every month for 3 months.

Participants in part A are in the study for about 4 months and visit the study site about 8 times.

Participants in part B are in the study for about 5 months and visit the study site about 7 times.

The doctors regularly check participants' health and take note of any unwanted effects.

Being tested
BI 765128, Sham comparator
Medical subject headings
Diabetic Retinopathy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BI 765128Drug

    BI 765128

  • Sham comparatorOther

    Sham comparator

Study groups in NCT04919499
Study groupRoleWhat they receive
Single rising dose part: low-dose BI 765128ExperimentalDiabetic retinopathy (DR) patients with Diabetic Macular Ischemia (DMI) previously treated with panretinal photocoagulation (PRP) received one single intravitreal injection of low-dose BI 765128.
Receives: Drug: BI 765128
Single rising dose part: medium-dose BI 765128ExperimentalDiabetic retinopathy (DR) patients with Diabetic Macular Ischemia (DMI) previously treated with panretinal photocoagulation (PRP) received one single intravitreal injection of medium-dose BI 765128.
Receives: Drug: BI 765128
Single rising dose part: high-dose BI 765128ExperimentalDiabetic retinopathy (DR) patients with Diabetic Macular Ischemia (DMI) previously treated with panretinal photocoagulation (PRP) received one single intravitreal injection of high-dose BI 765128.
Receives: Drug: BI 765128
Multiple dose part: high-dose BI 765128ExperimentalDiabetic retinopathy (DR) patients with Diabetic Macular Ischemia (DMI) previously treated with panretinal photocoagulation (PRP) received 3 single intravitreal injection of high-dose BI 765128 at week 1, 4 and 8.
Receives: Drug: BI 765128
Multiple dose part: ShamSham comparatorDiabetic retinopathy (DR) patients with Diabetic Macular Ischemia (DMI) previously treated with panretinal photocoagulation (PRP) received 3 single intravitreal sham injection at week 1, 4 and 8.
Receives: Other: Sham comparator

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Single Rising Dose Part - Number of Subjects With Ocular Dose Limiting Events (DLEs) From Drug Administration Until Day 8 (7 Days After Treatment)

    Dose limiting events were defined in the clinical trial protocol as any of the following occurrences in the eye being studied during the evaluation period:

    • development of sterile endophthalmitis and/or sterile inflammation of the vitreous of 3+ (out of 0, 0.5+,1+,2+,3+ and 4+, where 0 is clear vitreous and 4+ is an obscured vitreous) according to the NEI (National Eye Institute) Grading of vitreous haze, and anterior chamber cells of 3+ (out of 0, 0.5+,1+,2+,3+ and 4+, where 0 is no inflammation and 4+ is severe inflammation) according to the Standardization of Uveitis Nomenclature (SUN) working group (WG) grading scheme for 5 or more days;
    • visual loss of more than 15 letters at any given time-point; persistent intra-ocular pressure over 30 mmHg for 3 days;
    • and signs of vascular occlusion in a first (the main branch) or second degree (the vessel after the first bifurcation of the main branch) retinal vessel.

    Measured: From initial drug administration (day 1) until day 8.

  2. Multiple Dose Part - Number of Subjects With Drug Related Adverse Events (AEs) From Drug Administration Until End of Study (EOS)

    Number of subjects with adverse events assessed as drug related by the investigator from first drug administration to end of the multiple dose part of the study.

    Measured: From first drug administration to end of the multiple dose part of the study, i.e., up to day 141±7.

Secondary outcomes (7)
  1. Single Rising Dose Part - Number of Subjects With Drug Related Adverse Events (AEs) at End of Study (EOS)

    Number of subjects with adverse events assessed as drug related by the investigator from first drug administration to end of the single rising dose part of the study.

    Measured: From first drug administration to end of the single rising dose part of the study, i.e., up to day 99±7.

  2. Single Rising Dose Part - Number of Subjects With Any Ocular Adverse Events (AEs) (Eye Disorders) at End of Study (EOS)

    Number of subjects with any ocular adverse events at the end of the single rising dose part of the study.

    Measured: From first drug administration to end of the single rising dose part of the study, i.e., up to day 99±7.

  3. Multiple Dose Part - Change From Baseline of the Size of the Foveal Avascular Zone (FAZ) in Optical Coherence Tomography Angiography (OCTA) at Visit 5

    This outcome measured the change in size of the foveal avascular zone (FAZ) from baseline to visit 5 of the multiple dose part of the trial by optical coherence tomography angiography (OCTA). Results were calculated as [Visit 5] -[Baseline].

    A mixed model with repeated measurements (MMRM) was used for the analysis with fixed, categorical effects of treatment at each visit and the fixed continuous effects of baseline at each visit. Visit was treated as the repeated measure with an unstructured covariance structure used to model the within-patient measurements. The Kenward-Roger approximation was used to estimate denominator degrees of freedom and adjust standard errors.

    Measured: MMRM included measurements at baseline, day 29±3, day 57±3, day 85±7, day 113±7 and day 141±7. Change from baseline values at day 85±7 (visit 5) is reported.

  4. Multiple Dose Part - Change From Baseline of the Size of the Foveal Avascular Zone (FAZ) in Optical Coherence Tomography Angiography (OCTA) at Visit 6

    This outcome measured the change in size of the foveal avascular zone (FAZ) from baseline to visit 6 of the multiple dose part of the trial by optical coherence tomography angiography (OCTA). Results were calculated as [Visit 6] - [Baseline].

    A mixed model with repeated measurements (MMRM) was used for the analysis with fixed, categorical effects of treatment at each visit and the fixed continuous effects of baseline at each visit. Visit was treated as the repeated measure with an unstructured covariance structure used to model the within-patient measurements. The Kenward-Roger approximation was used to estimate denominator degrees of freedom and adjust standard errors.

    Measured: MMRM included measurements at baseline, day 29±3, day 57±3, day 85±7, day 113±7 and day 141±7. Change from baseline values at day 113±7 (visit 6) is reported.

  5. Multiple Dose Part - Change From Baseline of the Size of the Foveal Avascular Zone (FAZ) in Optical Coherence Tomography Angiography (OCTA) at Visit 7

    This outcome measured the change in size of the foveal avascular zone (FAZ) from baseline to visit 7 of the multiple dose part of the trial by optical coherence tomography angiography (OCTA). Results were calculated as [Visit 7] - [Baseline].

    A mixed model with repeated measurements (MMRM) was used for the analysis with fixed, categorical effects of treatment at each visit and the fixed continuous effects of baseline at each visit. Visit was treated as the repeated measure with an unstructured covariance structure used to model the within-patient measurements. The Kenward-Roger approximation was used to estimate denominator degrees of freedom and adjust standard errors.

    Measured: MMRM included measurements at baseline, day 29±3, day 57±3, day 85±7, day 113±7 and day 141±7. Change from baseline values at day 141±7 (visit 7) is reported.

  6. Multiple Dose Part - Change From Baseline of Best Corrected Visual Acuity (BCVA) at Visit 7

    This outcome measured the absolute change in best corrected visual acuity (BCVA) from baseline to visit 7 of the multiple dose part of the trial. The BCVA was measured using the early treatment diabetic retinopathy study (ETDRS) visual acuity chart. The BCVA score was the number of letters read correctly by the patient. Results were calculated as [Visit 7] - [Baseline] and were rounded to one decimal place.

    A mixed model with repeated measurements (MMRM) was used for the analysis with fixed, categorical effects of treatment at each visit and the fixed continuous effects of baseline at each visit. Visit was treated as the repeated measure with an unstructured covariance structure used to model the within-patient measurements. The Kenward-Roger approximation was used to estimate denominator degrees of freedom and adjust standard errors.

    Measured: MMRM included measurements at baseline, day 29±3, day 57±3, day 85±7, day 113±7 and day 141±7. Change from baseline values at day 141±7 (visit 7) is reported.

  7. Multiple Dose Part - Number of Subjects With Any Ocular Adverse Events (AEs) (Eye Disorders) From Drug Administration Until End of Study (EOS)

    Number of subjects with any ocular adverse events at the end of the multiple dose part of the study.

    Measured: From first drug administration to end of the multiple dose part of the study, i.e., up to day 141±7.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Jun 2021
  2. Study start30 Jul 2021
  3. Primary completion7 Aug 2023
  4. Study completion7 Aug 2023

Resources

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
46 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04919499
Sponsor's protocol ID
1451-0001
Other IDs
2020-005425-87
Acronym
PARTRIDGE
Status last verified
Nov 2024
First submitted
8 Jun 2021
Last updated
21 Nov 2024
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No: Clinical studies sponsored by Boehringer Ingelheim, phases I to IV, interventional and non-interventional, are in scope for sharing of the raw clinical study data and clinical study documents, except for the following exclusions: 1. studies in products where Boehringer Ingelheim is not the license holder; 2. studies regarding pharmaceutical formulations and associated analytical methods, and studies pertinent to pharmacokinetics using human biomaterials; 3. studies conducted in a single center or targeting rare diseases (because of limitations with anonymization). For more details refer to: https://www.mystudywindow.com/msw/datasharing

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing BI 765128 in people with Diabetic Retinopathy, run by Boehringer Ingelheim at 25 sites in 6 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 18 inclusion and 18 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 21 Nov 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 25 sites in United States, United Kingdom, Spain, Australia, Latvia and 1 more country. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 27 Aug 2024). 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?

Single Rising Dose Part - Number of Subjects With Ocular Dose Limiting Events (DLEs) From Drug Administration Until Day 8 (7 Days After Treatment) (time frame: From initial drug administration (day 1) until day 8.). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 21 Nov 2024.

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