RT Journal Article SR Electronic T1 Intravitreal conbercept for diabetic macular oedema: 2-year results from a randomised controlled trial and open-label extension study JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 1436 OP 1443 DO 10.1136/bjophthalmol-2020-318690 VO 106 IS 10 A1 Liu, Kun A1 Wang, Hanying A1 He, Wei A1 Ye, Jian A1 Song, Yanping A1 Wang, Yusheng A1 Liu, Xiaoling A1 Wu, Zhifeng A1 Chen, Shaojun A1 Fan, Ke A1 Liu, Yuling A1 Zhang, Feng A1 Li, Zhiqing A1 Liu, Lin A1 Zhang, Junjun A1 Zhang, Xuedong A1 Ye, Junjie A1 Liang, Xiaoling A1 Li, Xiaoxin A1 Ke, Xiao A1 Wu, Quan A1 Li, Jie A1 Tao, Shanshan A1 Wang, Xinguo A1 Rosenfeld, Philip A1 Heier, Jeffrey S A1 Kaiser, Peter A1 Xu, Xun YR 2022 UL http://bjo.bmj.com/content/106/10/1436.abstract AB Background To demonstrate the efficacy and safety of intravitreal injections of conbercept versus laser photocoagulation in the treatment of diabetic macular oedema (DME).Methods A 12-month multicentre, randomised, double-masked, double-sham, parallel controlled, phase III trial (Sailing Study), followed by a 12-month open-label extension study. Patients with centre-involved DME were randomly assigned to receive either laser photocoagulation followed by pro re nata (PRN) sham intravitreal injections (laser/sham) or sham laser photocoagulation followed by PRN 0.5 mg conbercept intravitreal injections (sham/conbercept). Patients who entered the extension study received PRN conbercept treatment. The primary endpoint was the changes in best-corrected visual acuity (BCVA) from baseline.Results A total of 248 eyes were included in the full analysis set and 157 eyes continued in the extension study. Significant improvement in mean change in BCVA from baseline to month 12 was observed in the sham/conbercept group (8.2±9.5 letters), whereas no improvement was observed in the laser/sham group (0.3±12.0 letters). Patients in the laser/sham group showed a marked improvement in BCVA after the switch to conbercept in the extension study, and there was no difference in BCVA between the two groups at the end of the extension study.Conclusion The use of a conbercept PRN intravitreal injection regimen improved the BCVA of patients with DME, and its efficacy was better than that of laser photocoagulations, and the same efficacy was observed when the eyes treated with laser alone were switched to conbercept.Trial registration number NCT02194634.No data are available. This study is under the supervision of the Ministry of Science and Technology of China, and data sharing cannot be provided temporarily.