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项与 Surrozen Operating, Inc. 相关的临床试验

ACTRN12624000194561 / Recruiting临床1期

A Phase 1b Multiple Ascending Dose Study to Assess the Safety, Tolerability, and Pharmacokinetics of SZN-043 in Participants with Severe Alcohol-Associated Hepatitis

开始日期2024-05-23

申办/合作机构

Surrozen Operating, Inc.初创企业

[+1]

ACTRN12622000392763 / Recruiting临床1期

A Phase 1 Single and Multiple Ascending Dose Study to Assess the Safety and Pharmacokinetics of SZN-043, a Novel Bispecific Fusion Protein Targeting ASGR1 and ZNRF3/RNF43, in Healthy Volunteers and Subjects with Liver Cirrhosis

开始日期2022-06-06

申办/合作机构

Surrozen Operating, Inc.初创企业

[+1]

ACTRN12622000344796 / Recruiting临床1期

A Phase 1/1b, Three-Part, Randomised, Placebo-Controlled, Single- and Multiple-Ascending-Dose Studyto Evaluate the Safety, Pharmacokinetics, and Activity of SZN-1326 in Healthy Volunteers and in Subjects with Moderate to Severe Ulcerative Colitis

开始日期2022-05-09

申办/合作机构

Surrozen Operating, Inc.初创企业

[+1]

100 项与 Surrozen Operating, Inc. 相关的临床结果

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0 项与 Surrozen Operating, Inc. 相关的专利（医药）

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2

项与 Surrozen Operating, Inc. 相关的文献（医药）

Translational Vision Science & Technology

SZN-413, a FZD4 Agonist, as a Potential Novel Therapeutic for the Treatment of Diabetic Retinopathy

Article

作者: Chen, Hui ; Li, Yang ; Lopez, Tom ; Fletcher, Russell Byron ; Suen, Nicholas ; Yeh, Wen-Chen ; Tu, Shengjiang ; Whisler, Elizabeth ; Bolaki, Menaka ; Gupta, Suhani ; Logas, Kelsey Ronarda ; Nguyen, Huy ; Sampathkumar, Parthasarathy ; Lee, Sung-Jin ; Sura, Asmiti ; Vuppalapaty, Meghah ; Ye, Jay

PurposeThere remains a high unmet need for therapies with new mechanisms of action to achieve reperfusion of ischemic retina in diabetic retinopathy. We examined whether a novel frizzled class receptor 4 (FZD4) agonist could promote regeneration of functional blood vessels in animal models of retinopathy.MethodsWe developed a novel Norrin mimetic (SZN-413-p) targeting FZD4 and low-density lipoprotein receptor-related protein 5 (LRP5) and examined its effect on retinal and brain endothelial cells in vitro. SZN-413-p was subsequently humanized, resulting in the therapeutic candidate SZN-413, and was examined in animal models of retinopathy. In an oxygen-induced retinopathy mouse model, avascular and neovascularization areas were measured. Furthermore, in a vascular endothelial growth factor (VEGF)-induced retinal vascular leakage rabbit model, the impact on vascular leakage by SZN-413 was examined by measuring fluorescein leakage.ResultsSZN-413-p induced Wnt/β-catenin signaling and upregulated blood-brain barrier/blood-retina barrier gene expressions in endothelial cells. In the oxygen-induced retinopathy mouse model, SZN-413-p and SZN-413 significantly reduced the neovascularization area size (P < 0.001) to a level comparable to, or better than the positive control aflibercept. Both agonists also showed a reduction in avascular area size compared to vehicle (P < 0.001) and aflibercept groups (P < 0.05 and P < 0.01 for SZN-413-p and SZN-413, respectively). In the VEGF-induced retinal vascular leakage rabbit model, SZN-413 reduced retinal vascular leakage by ∼80%, compared to the vehicle-treated group (P < 0.01).ConclusionsReduction of neovascular tufts and avascular areas and of VEGF-driven retinal vascular leakage suggests that SZN-413 can simultaneously address retinal non-perfusion and vascular leakage.Translational RelevanceFZD4 signaling modulation by SZN-413 is a novel mechanism of action that can offer a new therapeutic strategy for diabetic retinopathy.

Pharmaceutics

Selective Activation of the Wnt-Signaling Pathway as a Novel Therapy for the Treatment of Diabetic Retinopathy and Other Retinal Vascular Diseases

Review

作者: Nguyen, Huy ; Lee, Sung-Jin ; Li, Yang

Retinal ischemia, often associated with various disorders such as diabetic retinopathy (DR), retinal vein occlusion, glaucoma, optic neuropathies, stroke, and other retinopathies, is a major cause of visual impairment and blindness worldwide. As proper blood supply to the retina is critical to maintain its high metabolic demand, any impediment to blood flow can lead to a decrease in oxygen supply, resulting in retinal ischemia. In the pathogenesis of DR, including diabetic macular edema (DME), elevated blood glucose leads to blood-retina barrier (BRB) disruptions, vascular leakage, and capillary occlusion and dropouts, causing insufficient delivery of oxygen to the retina, and ultimately resulting in visual impairment. Other potential causes of DR include neuronal dysfunction in the absence of vascular defect, genetic, and environmental factors. The exact disease progression remains unclear and varies from patient to patient. Vascular leakage leading to edema clearly links to visual impairment and remains an important target for therapy. Despite recent advances in the treatment of DME and DR with anti-VEGFs, effective therapies with new mechanisms of action to address current treatment limitations regarding vessel regeneration and reperfusion of ischemic retinal areas are still needed. The Wnt signaling pathway plays a critical role in proper vascular development and maintenance in the retina, and thus provides a novel therapeutic approach for the treatment of diabetic and other retinopathies. In this review, we summarize the potential of this pathway to address treatment gaps with current therapies, its promise as a novel and potentially disease modifying therapy for patients with DR and opportunities in other retinal vascular diseases.

100 项与 Surrozen Operating, Inc. 相关的药物交易

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100 项与 Surrozen Operating, Inc. 相关的转化医学

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