Evidence map›Paper›PMID 29902977›Full record

SynthesisBMC ophthalmology2018

Conbercept for patients with age-related macular degeneration: a systematic review.

Jiaxing Zhang, Yi Liang, Juan Xie, Dong Li, Qian Hu, Xiaosi Li, Wenyi Zheng, Rui He

Registry-linked trialOpen access · goldAbstract readSystematic Review
In one paragraph

Synthesis in BMC ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04668703 (Prophylactic Effect of Conbercept Intravitreal Injection at the Conclusion of Cataract Surgery for Diabetic Macular Edema in Cataract Patients With Diabetic Retinopathy), which is not on this map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
5.6field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04668703 naunknown statusnot on this mapstarted 2021, after this paper: background citation

Prophylactic Effect of Conbercept Intravitreal Injection at the Conclusion of Cataract Surgery for Diabetic Macular Edema in Cataract Patients With Diabetic Retinopathy

TypeinterventionalSponsorEye & ENT Hospital of Fudan UniversityRan2021 to 2022Enrolled40ConditionsDiabetic Macular Edema, Diabetic Retinopathy, Cataract DiabeticArmsConbercept intravitreal injection
3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 53 citations in OpenAlex.

  1. Pooled it
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  10. Preclinical evaluation of KH631, a novel rAAV8 gene therapy product for neovascular age-related macular degeneration.Molecular therapy : the journal of the American Society of Gene Therapy · 2023
    Article
  11. Review
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  19. Anti-VEGF and Other Novel Therapies for Neovascular Age-Related Macular Degeneration: An Update.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2021
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 3 countries.

Jiaxing ZhangDepartment of Pharmacy, Guizhou provincial people's hospital, No.83 Zhongshandong Road, Nanming District, Guiyang, Guizhou Province, China.
Yi LiangHealth Outcomes and Pharmacy Practice, College of Pharmacy, the University of Texas at Austin, Austin, Texas, USA.
Juan XieDepartment of Pharmacy, Guizhou provincial people's hospital, No.83 Zhongshandong Road, Nanming District, Guiyang, Guizhou Province, China.
Dong LiDepartment of Ophthalmology, Guizhou provincial people's hospital, Guiyang, Guizhou Province, China.
Qian HuDepartment of Ophthalmology, Guizhou provincial people's hospital, Guiyang, Guizhou Province, China.
Xiaosi LiDepartment of Pharmacy, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, No.20 Ximianqiaoheng Street, Wuhou District, Chengdu, Sichuan Province, China. lixiaosiyyy@126.com.
Wenyi ZhengDepartment of Laboratory Medicine, Experimental Cancer Medicine, Clinical Research Center, Karolinska Institute, 14186, Huddinge, Stockholm, Sweden.
Rui HeDepartment of Laboratory Medicine, Experimental Cancer Medicine, Clinical Research Center, Karolinska Institute, 14186, Huddinge, Stockholm, Sweden.
Guizhou Provincial People's Hospital · CNKarolinska Institutet · SEAustin College · USTibet Autonomous Region People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundConbercept is a novel vascular endothelial growth factor (VEGF) inhibitor for the treatment of wet age-related macular degeneration (AMD). This systematic review aims to assess the efficacy and safety of conbercept in the treatment of wet AMD.

methodsPubMed, Embase, Cochrane Library, China National Knowledge Infrastructure, VIP database, and Wanfang database were searched from their earliest records to June 2017. We included randomized controlled trials (RCTs) evaluating the efficacy and safety of conbercept in wet AMD patients. Outcomes included the mean changes from baseline in best-corrected visual acuity (BCVA) score (primary outcome), central retinal thickness (CRT), plasma level of vascular endothelial growth factor (VEGF) over time, and the incidence of adverse events (AEs).

resultsEighteen RCTs (1285 participants) were included in this systematic review. Conbercept might improve BCVA compared to triamcinolone acetonide [MD = 0.11, 95% CI (0.08, 0.15)], and reduce CRT compared to the other four therapies (conservative treatment, ranibizumab, transpupillary thermotherapy, and triamcinolone acetonide). The incidence of AEs in patients receiving conbercept was significantly lower than those receiving triamcinolone acetonide [RR = 0.25, 95% CI (0.09-0.72)], but was similar to the other therapies. Conbercept seemed to be more effective than ranibizumab in lowering the plasma level of VEGF [MD = - 15.86, 95% CI (- 23.17, - 8.55)].

conclusionsCurrent evidence shows that conbercept is a promising option for the treatment of wet AMD. Nevertheless, further studies are required to compare the efficacy, long-term safety and cost-effectiveness between conbercept and other anti-VEGF agents in different populations.

Indexed as

Visual AcuityDose-Response Relationship, DrugHumansIntravitreal InjectionsRecombinant Fusion ProteinsVascular Endothelial Growth Factor AWet Macular DegenerationKH902 fusion proteinRecombinant Fusion ProteinsVascular Endothelial Growth Factor AConberceptRanibizumabSystematic reviewVascular endothelial growth factor (VEGF) inhibitorWet age-related macular degeneration

Identifiers

PMID29902977
PMCPMC6003117
OpenAlexW2807823509

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.