[Translation] A multicenter, randomized, double-blind, positive-controlled phase III clinical trial of RC28-E injection in the treatment of diabetic macular edema

评价RC28-E注射液治疗糖尿病性黄斑水肿患者的有效性和安全性

[Translation]

To evaluate the efficacy and safety of RC28-E injection in the treatment of patients with diabetic macular edema

Start Date08 Jun 2023

Sponsor / Collaborator

RemeGen Co., Ltd.

CTR20230065 / RecruitingPhase 3

一项在湿性年龄相关性黄斑变性患者中评价RC28-E注射液有效性和安全性的Ⅲ期、多中心、随机、双盲、阳性对照研究

[Translation] A phase III, multicenter, randomized, double-blind, active-controlled study to evaluate the efficacy and safety of RC28-E injection in patients with wet age-related macular degeneration

评价RC28-E注射液治疗湿性年龄相关性黄斑变性患者的有效性和安全性

[Translation]

To evaluate the efficacy and safety of RC28-E injection in the treatment of patients with wet age-related macular degeneration

Start Date14 Mar 2023

Sponsor / Collaborator

RemeGen Co., Ltd.

100 Clinical Results associated with Eflimrufusp alfa

100 Translational Medicine associated with Eflimrufusp alfa

100 Patents (Medical) associated with Eflimrufusp alfa

Literatures (Medical) associated with Eflimrufusp alfa

01 Sep 2024·Ophthalmology and Therapy

Safety and Efficacy of Multiple Escalating Doses of RC28-E for Neovascular Age-Related Macular Degeneration: A Phase 1b Trial

Article

Author: Jiang, Qin ; Ha, Shaoping ; Chen, He ; Li, Zhuo ; Dai, Hong ; Wu, Chan ; Lu, Yingyi ; Wang, Wenxiang ; Zhang, Han ; Bi, Yanlong ; Fang, Jianmin ; Chen, Youxin ; Liu, Xiaoling ; Zhang, Yifan ; Yu, Xiaobing ; Zhu, Dan ; Li, Lin

INTRODUCTION:

To assess the safety and efficacy of repeated intravitreal injections of RC28-E, a novel bispecific antibody that simultaneously binds vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) in patients with neovascular age-related macular degeneration (AMD). This was a prospective, multicenter, open-label clinical trial; 37 patients with choroidal neovascularization secondary to AMD and best-corrected visual acuity (BCVA) letter scores between 73 and 34 were enrolled.

METHODS:

Treatment regimens consisted of a 3-month loading phase and a pro re nata (PRN) maintenance phase. This study included three treatment groups: the 0.5, 1.0, and 2.0 mg RC28-E groups, with escalating doses ranging from 0.5 to 2.0 mg. Patients were evaluated monthly for 48 weeks. Safety was assessed based on ocular and systemic adverse events (AEs), pharmacokinetic characteristics, and the presence of anti-RC28-E antibodies. Efficacy was assessed using the mean change in BCVA and central subfield thickness (CST) from baseline to week 48.

RESULTS:

Most AEs were mild or moderate. The most common AE was a minor injection-related subconjunctival hemorrhage (16.2%). The AEs did not increase with dose or repeated injections. At week 48, mean improvements in BCVA from baseline in the 0.5, 1.0, and 2.0 mg groups were 6.1 ± 8.3, 9.9 ± 10.7, and 7.6 ± 9.38 letters, respectively; mean reductions in CST in the three groups were 112.1 ± 160.5, 175.1 ± 212.4, and 128.7 ± 145.8 μm, respectively. The serum RC28-E concentrations in 95% of the patients were below the quantification limit of the assay. No significant change from baseline was observed in the mean plasma concentrations of VEGF or FGF over the 48 weeks of treatment. Pre-treatment antibodies to RC28-E were detected in 1 of the 37 patients. Antibodies to RC28-E were detected in two patients after dosing with RC28-E for 48 weeks.

CONCLUSION:

RC28-E was well tolerated and exhibited an overall favorable safety profile with evidence of improvements in BCVA and anatomical parameters.

01 Jan 2020·Experimental eye researchQ3 · MEDICINE

In vivo characterization of RC28-E, a fusion protein targeting VEGF and bFGF: Pharmacokinetics and ocular distribution in primates

Q3 · MEDICINE

Article

Author: Huang, Min ; Kou, Xiangying ; Li, Hongzhen ; Jiang, Jing ; Liu, Zhihao ; Wu, Chuandong ; Wang, Ling

Administration of RC28-E, a VEGF/bFGF dual decoy receptor (IgG1 Fc-fusion protein), have shown relative therapeutic value in ocular in vivo models, including laser-induced choroidal neovascularization (CNV) in monkeys and streptozotocin (STZ)-induced diabetic retinopathy (DR) in rats. In the present study, we have elucidated the pharmacokinetics profiles of RC28-E at the systemic, vitreous and aqueous humor after administration in a primate model (Macaca fascicularis). Moreover, here we tease out the ocular tissue distribution of RC28-E after intravitreal administration, and we also determine the systemic bioavailability after both intravitreal and intravenous administration. Our results show that RC28-E is rapidly and well-distributed into ocular tissues after intravitreal administration. Drug exposure in choroid and retina was approximately one-quarter and one-twelfth of that in vitreous humor, while its half-life in vitreous and aqueous humor were well-sustained (3.3 and 3.0 days). Remarkably, RC28-E could cross the blood-ocular barrier, and the systemic bioavailability of RC28-E was ~25%. No drug accumulation after multiple administration was noticed, but low titers of antibody produce against RC28-E were detected. Overall, RC28-E exhibited high clinical value due to adequate pharmacokinetic profiling, safety and efficacy.

18 Jun 2018·International journal of ophthalmologyQ4 · MEDICINE

Protective effects of a novel drug RC28-E blocking both VEGF and FGF2 on early diabetic rat retina

Q4 · MEDICINE

ArticleOA

Author: Li, Xiao-Rong ; Jiang, Jing ; Wang, Ling ; Bo, Qi-Yu ; Zhang, Xiao-Min ; Ru, Yu-Sha ; Yu, Guang-Wei ; Han, Qian ; Yang, Qian-Hui ; Liu, Xun ; Fang, Jian-Min ; Wu, Mian-Mian ; Zhang, Yan ; Huang, Min

AIM:

To investigate protective effects of a novel recombinant decoy receptor drug RC28-E on retinal damage in early diabetic rats.

METHODS:

The streptozotocin (STZ)-induced diabetic rats were randomly divided into 6 groups: diabetes mellitus (DM) group (saline, 3 µL/eye); RC28-E at low (0.33 µg/µL, 3 µL), medium (1 µg/µL, 3 µL), and high (3 µg/µL, 3 µL) dose groups; vascular endothelial growth factor (VEGF) Trap group (1 µg/µL, 3 µL); fibroblast growth factor (FGF) Trap group (1 µg/µL, 3 µL). Normal control group was included. At week 1 and 4 following diabetic induction, the rats were intravitreally injected with the corresponding solutions. At week 6 following the induction, apoptosis in retinal vessels was detected by TUNEL staining. Glial fibrillary acidic protein (GFAP) expression was examined by immunofluorescence. Blood-retinal barrier (BRB) breakdown was assessed by Evans blue assay. Ultrastructural changes in choroidal and retinal vessels were analyzed by transmission electron microscopy (TEM). Content of VEGF and FGF proteins in retina was measured by enzyme linked immunosorbent assay (ELISA). The retinal expression of intercellular cell adhesion molecule-1 (ICAM-1), tumor necrosis factor-α (TNF-α), VEGF and FGF genes was examined by quantitative polymerase chain reaction (qPCR).

RESULTS:

TUNEL staining showed that the aberrantly increased apoptotic cells death in diabetic retinal vascular network was significantly reduced by treatments of medium and high dose RC28-E, VEGF Trap, and FGF Trap (all P<0.05), the effects of medium and high dose RC28-E or FGF Trap were greater than VEGF Trap (P<0.01). GFAP staining suggested that reactive gliosis was substantially inhibited in all RC28-E and VEGF Trap groups, but the inhibition in FGF Trap group was not as prominent. Evans blue assay demonstrated that only high dose RC28-E could significantly reduce vascular leakage in early diabetic retina (P<0.01). TEM revealed that the ultrastructures in choroidal and retinal vessels were damaged in early diabetic retina, which was ameliorated to differential extents by each drug. The expression of VEGF and FGF2 proteins was significantly upregulated in early diabetic retina, and normalized by RC28-E at all dosages and by the corresponding Traps. The upregulation of ICAM-1 and TNF-α in diabetic retina was substantially suppressed by RC28-E and positive control drugs.

CONCLUSION:

Dual blockade of VEGF and FGF2 by RC28-E generates remarkable protective effects, including anti-apoptosis, anti-gliosis, anti-leakage, and improving ultrastructures and proinflammatory microenvironment, in early diabetic retina, thereby supporting further development of RC28-E into a novel and effective drug to diabetic retinopathy (DR).

News (Medical) associated with Eflimrufusp alfa

12 May 2021

·www.globenewswire.com

Diabetic Macular Edema Pipeline Sees Expansion Owing to Key

Los Angeles, USA, May 12, 2021 (GLOBE NEWSWIRE) -- Diabetic Macular Edema Pipeline Sees Expansion Owing to Key Players, Key Therapies and Research & Programmes Diabetic Macular Edema Pipeline Insight report offers deep insights into emerging Diabetic Macular Edema pipeline therapies with an analysis of 50+key players and 50+key therapies. DelveInsight’s ‘Diabetic Macular Edema (DME) Pipeline Insights’ report provides a holistic view of the DME pipeline therapies that are under development in pre-clinical as well as clinical stages of development and growth prospects across the Diabetic Macular Edema landscape. Key takeaways of the Diabetic Macular Edema Pipeline report: Got queries? Want to know more? Request for Sample @ Diabetic Macular Edema Emerging Therapies and Forecast Diabetic Macular Edema: Overview Macular edema is a condition characterized by the build-up of fluid in the macula, an area in the center of the retina. The excess build-up results in the swelling and thickening of the macula leading to distorted vision. It is referred to as Diabetic Macular Edema (DME) as it is caused by a complication of diabetes called diabetic retinopathy. For more information on emerging drugs, visit Diabetic Macular Edema Pipeline Analysis The DME pipeline report proffers a rich coverage of the therapeutics by development stage, product type, and route of administration, molecule type, and MOA type for Diabetic Macular Edema across the complete product development cycle, including all clinical and non-clinical stages. Diabetic Macular Edema Pipeline Drugs Request for Sample to know which drug is expected to outperform @ Diabetic Macular Edema Pipeline Analysis, Key Companies, and Futuristic Trends Diabetic Macular Edema Therapeutics Assessment The Diabetic Macular Edema Pipeline report proffers exhaustive insights into active pipeline assets segmented by Stage, Product Type, Route of Administration, Molecule Type, Target, and Indications of various drugs. By Product Type By Stage By Molecule Type By Route of Administration By Mechanism of Action By Targets By Stage and Route of AdministrationBy Stage and Product Type Get in touch with our Business executive for Rich and Deep Market Assessment and Consulting Solutions The Diabetic Macular Edema pipeline report puts on the table business opportunities, threats, prospective collaborations, strong competitors, growth strategies, and failed as well as discontinued drugs that will help the clients to keep a track of the ongoing trials, recent happenings in the DME domain. Scope of the Report Coverage: GlobalKey Players: Kodiak Sciences, Novartis Pharmaceuticals, Adverum Biotechnologies, KalVista Pharmaceuticals, Momenta Pharmaceuticals, Roche, Regeneron Pharmaceuticals, Exonate, Opthea Limited, SciFluor Life Sciences, AsclepiX Therapeutics, RemeGen, UNITY Biotechnology, Celltrion, Bio-Thera Solutions, Ripple Therapeutics, GrayBug Vision, Oxurion, Aerie Pharmaceuticals, GlaxoSmithKline, Boehringer Ingelheim, and Apexian Pharmaceuticals among others.Key Diabetic Macular Edema Pipeline Therapies: KSI 301, LKA651, ADVM-022, KVD001, MYL-1701P, Faricimab, REGN 910-3, EXN407, OPT-302, SF0166, AXT107, Brolucizumab, RC28-E, UBX1325, CT-P42, BAT5906, IBE-814, GB-102, THR-149, AR-13503, GSK2798745, BI 1026706, and APX3330 among others. Reach out how novel therapies are transforming the DME landscape @ Diabetic Macular Edema Pipeline Table of Contents Visit to know more of what’s covered @ Diabetic Macular Edema Emerging Therapies Related Reports Chronic Pain Associated With Painful Diabetic Neuropathy MarketDelveInsight's "Chronic Pain Associated with Painful Diabetic Neuropathy - Market Insights, Epidemiology, and Market Forecast-2030" report. Diabetic Foot Ulcers MarketDelveInsight’s ‘Diabetic Foot Ulcer (DFU) - Market Insights, Epidemiology, and Market Forecast—2030’ report. Diabetic Foot MarketDelveInsight's "Diabetic Foot - Market Insights, Epidemiology, and Market Forecast-2030" report. Diabetic Eye Disease MarketDelveInsight's "Diabetic Eye Disease - Market Insights, Epidemiology, and Market Forecast-2030" report. Diabetic Ketoacidosis MarketDelveInsight's "Diabetic Ketoacidosis (DKA) - Market Insights, Epidemiology, and Market Forecast-2030" report. Diabetic Gastroparesis Market SizeDelveInsight’s ‘Diabetic Gastroparesis (DGp) - Market Insights, Epidemiology and Market Forecast-2030’ report offers a detailed analysis of therapies and key pharmaceutical companies including Allergan Evoke Pharma Inc., Theravance Biopharma, Censa Pharmaceuticals, CinDome Pharma, Takeda (Millennium Pharmaceuticals, Inc.), Bird Rock Bio, and others. Diabetic Kidney Disease MarketDelveInsight's "Diabetic Kidney Disease (DKD) - Market Insights, Epidemiology, and Market Forecast-2030" report. Related Posts Understanding The Increasing Prevalence Of Diabetes And Its ComplicationsDiabetic Peripheral Neuropathy Market Landscape Diabetic Peripheral Neuropathy Medications About DelveInsight DelveInsight is a leading Business Consultant and Market Research firm focused exclusively on life sciences. It supports Pharma companies by providing end-to-end comprehensive solutions to improve their performance. Get hassle-free access to all the healthcare and pharma market research reports through our subscription-based platform PharmDelve. For more insights, visit Pharma, Healthcare, and Biotech News

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Indication	Highest Phase	Country/Location	Organization	Date
Diabetic macular oedema	Phase 3	CN	RemeGen Co., Ltd.	08 Jun 2023
Wet age-related macular degeneration	Phase 3	CN	RemeGen Co., Ltd.	14 Mar 2023
Nonproliferative diabetic retinopathy	Phase 2	CN	RemeGen Co., Ltd.	25 May 2021

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Study	Phase	Population	Analyzed Enrollment	Group	Results	Evaluation	Publication Date


NCT04270669 \| CTR20192638 (NEWS) Manual	Phase 1	Wet age-related macular degeneration	-	RC28-E	lphqlodgav(qwnnqblzpr) = Patients using Rongchang BioRC28 demonstrated good tolerability and safety, with significant improvements in vision and disease, and were effective in patients who had previously received anti-VEGF therapy and PCV (fundus polypoid choroidal vasculopathy). qbfqlvtivq (lhnyplidwq )	Positive	15 Sep 2022
ARVO2012	Not Applicable	-	-	RC28	fifvapumnk(qttrujwofa) = ddzhcapykt dvrjmncwrw (odvoahoczt ) View more	-	01 Mar 2012

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