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

Sponsor
Boehringer Ingelheim (Industry)
Overall Status
Recruiting
CT.gov ID
NCT04919499
Collaborator
(none)
48
Enrollment
8
Locations
5
Arms
22.2
Anticipated Duration (Months)
6
Patients Per Site
0.3
Patients Per Site Per Month

Study Details

Study Description

Brief 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. 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.

Condition or DiseaseIntervention/TreatmentPhase
  • Drug: BI 765128
  • Other: Sham comparator
Phase 1/Phase 2

Study Design

Study Type:
Interventional
Anticipated Enrollment :
48 participants
Allocation:
Randomized
Intervention Model:
Sequential Assignment
Masking:
Double (Participant, Investigator)
Masking Description:
Description to masking: In Part A no masking will be performed. In Part B participant and investigator will be masked. Description to randomisation: In Part A no randomisation will be performed. In Part B randomisation will be performed.
Primary Purpose:
Treatment
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
Actual Study Start Date :
Jul 30, 2021
Anticipated Primary Completion Date :
Jun 5, 2023
Anticipated Study Completion Date :
Jun 5, 2023

Arms and Interventions

ArmIntervention/Treatment
Experimental: Part A: BI 765128 low dose

Drug: BI 765128
BI 765128

Experimental: Part A: BI 765128 medium dose

Drug: BI 765128
BI 765128

Experimental: Part A: BI 765128 high dose

Drug: BI 765128
BI 765128

Experimental: Part B: BI 765128

Highest safe dose from Part A

Drug: BI 765128
BI 765128

Sham Comparator: Part B: Sham comparator

Other: Sham comparator
Sham comparator

Outcome Measures

Primary Outcome Measures

  1. Part A: Number of subjects with ocular dose limiting events (DLEs) from drug administration until day 8 (7 days after treatment) [up to 7 days]

  2. Part B: Number of subjects with drug related Adverse Events (AEs) from drug administration until end of study (EOS) [up to 20 weeks]

Secondary Outcome Measures

  1. Part A: Number of subjects with drug related Adverse Events (AEs) at end of study (EOS) [up to 14 weeks]

  2. Part A: Number of subjects with any ocular Adverse Events (AEs) (eye disorders) at end of study (EOS) [up to 14 weeks]

  3. Part B: Change from baseline of the size of the foveal avascular zone (FAZ) in optical coherence tomography angiography (OCTA) at visit 5 [up to 12 weeks]

  4. Part B: Change from baseline of the size of the foveal avascular zone (FAZ) in optical coherence tomography angiography (OCTA) at visit 6 [up to 16 weeks]

  5. Part B: Change from baseline of the size of the foveal avascular zone (FAZ) in optical coherence tomography angiography (OCTA) at visit 7 [up to 20 weeks]

  6. Part B: Change from baseline of best corrected visual acuity (BCVA) at Visit 7 [up to 20 weeks]

  7. Part B: Number of subjects with any ocular Adverse Events (AEs) (eye disorders) from drug administration until end of study (EOS) [up to 20 weeks]

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
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) ≤65 letters (20/50) in the study eye

  • 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 ICH GCP Harmonized Guideline for Good Clinical Practice 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) ≤80 letters (20/25) in the study eye

  • 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 ICH GCP Harmonized Guideline for Good Clinical Practice and local legislation prior to admission to the trial

Exclusion Criteria:
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 6 months to screening in the study eye

  • Subjects receiving anti-VEGF IVT injections for active diabetic retinopathy (DR) in the previous 6 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

  • 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 6 months to screening in the study eye

  • Subjects receiving anti-VEGF intravitreal IVT injections for active Diabetic Retinopathy (DR) in the previous 6 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

  • Clinically significant disorganisation of retinal inner layer (DRIL) 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) Further exclusion criteria apply

Contacts and Locations

Locations

SiteCityStateCountryPostal Code
1Trinity ResearchDothanAlabamaUnited States36301
2Retinal Consultants Medical GroupSacramentoCaliforniaUnited States95825
3Bay Area Retina Associates - Walnut CreekWalnut CreekCaliforniaUnited States94598
4Austin Research Center for Retina, PLLCAustinTexasUnited States78705
5Bristol Eye HospitalBristolUnited KingdomBS1 2LX
6Royal Liverpool University HospitalLiverpoolUnited KingdomL7 8XP
7Moorfields Eye HospitalLondonUnited KingdomEC1V 2PD
8Oxford Eye HospitalOxfordUnited KingdomOX3 9DU

Sponsors and Collaborators

  • Boehringer Ingelheim

Investigators

None specified.

Study Documents (Full-Text)

None provided.

More Information

Additional Information:

Publications

None provided.
Responsible Party:
Boehringer Ingelheim
ClinicalTrials.gov Identifier:
NCT04919499
Other Study ID Numbers:
  • 1451-0001
First Posted:
Jun 9, 2021
Last Update Posted:
Dec 1, 2021
Last Verified:
Nov 1, 2021
Individual Participant Data (IPD) Sharing Statement:
No
Plan to Share IPD:
No
Studies a U.S. FDA-regulated Drug Product:
Yes
Studies a U.S. FDA-regulated Device Product:
No
Additional relevant MeSH terms:

Study Results

No Results Posted as of Dec 1, 2021