Cargando…
Bradykinin 1 Receptor Antagonist BI1026706 Does Not Reduce Central Retinal Thickness in Center-Involved Diabetic Macular Edema
PURPOSE: The bradykinin 1 receptor may be important in inflammatory retinal vascular leakage in diabetic macular edema. BI 1026706 is an antagonist of bradykinin 1 receptor that has demonstrated efficacy in preclinical studies. Boehringer Ingelheim trial 1320.22 (NCT02732951) was a randomized, doubl...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Association for Research in Vision and Ophthalmology
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7396196/ https://www.ncbi.nlm.nih.gov/pubmed/32818112 http://dx.doi.org/10.1167/tvst.9.4.25 |
_version_ | 1783565541695291392 |
---|---|
author | Lang, Gabriele E. Tadayoni, Ramin Tang, Wenbo Barth, Claudia Weiss-Haljiti, Cornelia Chong, Victor |
author_facet | Lang, Gabriele E. Tadayoni, Ramin Tang, Wenbo Barth, Claudia Weiss-Haljiti, Cornelia Chong, Victor |
author_sort | Lang, Gabriele E. |
collection | PubMed |
description | PURPOSE: The bradykinin 1 receptor may be important in inflammatory retinal vascular leakage in diabetic macular edema. BI 1026706 is an antagonist of bradykinin 1 receptor that has demonstrated efficacy in preclinical studies. Boehringer Ingelheim trial 1320.22 (NCT02732951) was a randomized, double-blind, placebo-controlled study. The pharmacodynamics, safety, and tolerability of oral BI 1026706 for 12 weeks were evaluated in patients with type 1 or type 2 diabetes mellitus and mild visual impairment owing to center-involved diabetic macular edema. METHODS: Patients (n = 105) were randomized to receive either oral BI 1026706 100 mg twice daily (morning and evening) or placebo for 12 weeks. The primary end point of the study was week 12 change from baseline in central subfield foveal thickness (CSFT) by spectral domain optical coherence tomography. Additional end points included absolute CSFT values, safety, and pharmacokinetics. RESULTS: After 12 weeks of treatment, there was no meaningful change from baseline in the adjusted mean CSFT in either treatment group (BI 1026706, 10.3 µm; placebo, –6.2 µm; adjusted mean treatment difference, 16.5 µm [95% confidence interval, –16.2 to 49.1]). There were also no differences in best-corrected visual acuity outcomes between treatment groups. Most reported adverse events were of mild or moderate intensity, and were balanced between treatment groups. CONCLUSIONS: BI 1026706 was not superior to placebo in CSFT week-12 change from baseline. Therefore, BI 1026706 does not reduce CSFT, a morphologic sign of diabetic macular edema. TRANSLATIONAL RELEVANCE: Kinin-kallikrein inhibition effects may not be apparent over 12 weeks for bradykinin 1 receptor inhibition alone. |
format | Online Article Text |
id | pubmed-7396196 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | The Association for Research in Vision and Ophthalmology |
record_format | MEDLINE/PubMed |
spelling | pubmed-73961962020-08-17 Bradykinin 1 Receptor Antagonist BI1026706 Does Not Reduce Central Retinal Thickness in Center-Involved Diabetic Macular Edema Lang, Gabriele E. Tadayoni, Ramin Tang, Wenbo Barth, Claudia Weiss-Haljiti, Cornelia Chong, Victor Transl Vis Sci Technol Clinical Trials PURPOSE: The bradykinin 1 receptor may be important in inflammatory retinal vascular leakage in diabetic macular edema. BI 1026706 is an antagonist of bradykinin 1 receptor that has demonstrated efficacy in preclinical studies. Boehringer Ingelheim trial 1320.22 (NCT02732951) was a randomized, double-blind, placebo-controlled study. The pharmacodynamics, safety, and tolerability of oral BI 1026706 for 12 weeks were evaluated in patients with type 1 or type 2 diabetes mellitus and mild visual impairment owing to center-involved diabetic macular edema. METHODS: Patients (n = 105) were randomized to receive either oral BI 1026706 100 mg twice daily (morning and evening) or placebo for 12 weeks. The primary end point of the study was week 12 change from baseline in central subfield foveal thickness (CSFT) by spectral domain optical coherence tomography. Additional end points included absolute CSFT values, safety, and pharmacokinetics. RESULTS: After 12 weeks of treatment, there was no meaningful change from baseline in the adjusted mean CSFT in either treatment group (BI 1026706, 10.3 µm; placebo, –6.2 µm; adjusted mean treatment difference, 16.5 µm [95% confidence interval, –16.2 to 49.1]). There were also no differences in best-corrected visual acuity outcomes between treatment groups. Most reported adverse events were of mild or moderate intensity, and were balanced between treatment groups. CONCLUSIONS: BI 1026706 was not superior to placebo in CSFT week-12 change from baseline. Therefore, BI 1026706 does not reduce CSFT, a morphologic sign of diabetic macular edema. TRANSLATIONAL RELEVANCE: Kinin-kallikrein inhibition effects may not be apparent over 12 weeks for bradykinin 1 receptor inhibition alone. The Association for Research in Vision and Ophthalmology 2020-03-30 /pmc/articles/PMC7396196/ /pubmed/32818112 http://dx.doi.org/10.1167/tvst.9.4.25 Text en Copyright 2020 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. |
spellingShingle | Clinical Trials Lang, Gabriele E. Tadayoni, Ramin Tang, Wenbo Barth, Claudia Weiss-Haljiti, Cornelia Chong, Victor Bradykinin 1 Receptor Antagonist BI1026706 Does Not Reduce Central Retinal Thickness in Center-Involved Diabetic Macular Edema |
title | Bradykinin 1 Receptor Antagonist BI1026706 Does Not Reduce Central Retinal Thickness in Center-Involved Diabetic Macular Edema |
title_full | Bradykinin 1 Receptor Antagonist BI1026706 Does Not Reduce Central Retinal Thickness in Center-Involved Diabetic Macular Edema |
title_fullStr | Bradykinin 1 Receptor Antagonist BI1026706 Does Not Reduce Central Retinal Thickness in Center-Involved Diabetic Macular Edema |
title_full_unstemmed | Bradykinin 1 Receptor Antagonist BI1026706 Does Not Reduce Central Retinal Thickness in Center-Involved Diabetic Macular Edema |
title_short | Bradykinin 1 Receptor Antagonist BI1026706 Does Not Reduce Central Retinal Thickness in Center-Involved Diabetic Macular Edema |
title_sort | bradykinin 1 receptor antagonist bi1026706 does not reduce central retinal thickness in center-involved diabetic macular edema |
topic | Clinical Trials |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7396196/ https://www.ncbi.nlm.nih.gov/pubmed/32818112 http://dx.doi.org/10.1167/tvst.9.4.25 |
work_keys_str_mv | AT langgabrielee bradykinin1receptorantagonistbi1026706doesnotreducecentralretinalthicknessincenterinvolveddiabeticmacularedema AT tadayoniramin bradykinin1receptorantagonistbi1026706doesnotreducecentralretinalthicknessincenterinvolveddiabeticmacularedema AT tangwenbo bradykinin1receptorantagonistbi1026706doesnotreducecentralretinalthicknessincenterinvolveddiabeticmacularedema AT barthclaudia bradykinin1receptorantagonistbi1026706doesnotreducecentralretinalthicknessincenterinvolveddiabeticmacularedema AT weisshaljiticornelia bradykinin1receptorantagonistbi1026706doesnotreducecentralretinalthicknessincenterinvolveddiabeticmacularedema AT chongvictor bradykinin1receptorantagonistbi1026706doesnotreducecentralretinalthicknessincenterinvolveddiabeticmacularedema AT bradykinin1receptorantagonistbi1026706doesnotreducecentralretinalthicknessincenterinvolveddiabeticmacularedema |