Review Article

The Efficacy of Conbercept in Polypoidal Choroidal Vasculopathy: A Systematic Review

Table 2

The characteristics of studies.

Trials (author, year)LocationDesignTreatment groups (patients)Age (y), mean ± SDGender M/FInterventionsFollow-up (month)

Qu et al., 2016 [16]ChinaRetrospective subgroup analysis from RCT0.5 mg IVC (n = 32)
2.0 mg IVC (n = 21)
66.5 ± 8.7
63.9 ± 9.6
12/20
8/13
0.5 mg conbercept 3 + PRN
2.0 mg conbercept 3 + PRN
3, 12
Qi et al., 2019 [17]ChinaProspectiveIVC (n = 56)68.2131/250.5 mg conbercept 3 + PRN3, 12
Cheng et al., 2016 [18]ChinaRETROtype1 PCV (n = 35)
type2 PCV (n = 23)
66.5 ± 8.7
63.9 ± 9.6
22/13 13/100.5 mg conbercept 3 + PRN3, 6, 9, 12
Liu et al., 2018 [19]ChinaRETROIVC (n = 50)66.58 ± 4.034/160.5 mg conbercept PRN3, 6, 12
Oishi et al., 2013 [20]JapanRCTIVR (n = 46)
PDT (n = 45)
75.4 ± 6.9.
75 ± 8.0
28/18
32/15
0.5 mg ranibizumab 3 + PRN
PDT 1 + PRN
12, 24
Lai et al., 2018 [21]ChinaRCTIVR (n = 18)
PDT (n = 23)
PDT + IVR (n = 16)
64.67 ± 8.52
60.52 ± 7.77
61.06 ± 9.12
12/6
14/9
10/6
0.5 mg ranibizumab 1 + PRN
PDT 1 + PRN
IVR + PDT 1 + PRN
1, 3, 6, 9, 12
Marcus et al., 2015 [22]USARCT2.0 mgIVR (n = 15)
0.5 mgIVR (n = 5)
62.6
51.8
8/7
3/2
Ranibizumab 3 + prn3, 6, 9, 12
Ogino et al., 2013 [23]JapanProspectiveIVR (n = 23).74.4 ± 6.918/50.5 mg ranibizumab 3 + PRN3, 12
Kokame et al., 2014 [24]USAProspectiveIVR (n = 13)76.3111/20.5 mg ranibizumab monthly1, 3, 6, 9, 12
Hikichi et al., 2014 [25]JapanProspectiveIVR (n = 86)77 ± 862/240.5 mg ranibizumab 3 + PRN12
Koh et al., 2017 [7]Japan
Korea
Singapore
Hong Kong
Taiwan
Thailand
RCTIVR (n = 168)
PDT + IVR (n = 154)
68.2 ± 9
68.0 ± 8.5
116/38
109/59
0.5 mg ranibizumab 3 + PRN
PDT 1 + PRN/0.5 mg ranibizumab 3 + PRN
3, 12
Lai et al., 2011 [26]Hong KongRETROIVR (n = 7)
IVR + PDT (n = 16)
PDT (n = 12)
64.6 ± 7.9
71.3 ± 9.8
65.6 ± 11.0
4/3
8/8
10/2
0.5 mg ranibizumab 3 + PRN
PDT 1 + PRN/0.5 mg ranibizumab 3 + PRN
PDT 1 + PRN
3, 12
Rouvas et al., 2011 [27]GreeceRETROIVR (n = 10)
IVR + PDT (n = 9)
PDT (n = 11)
66.5
64.67
62.9
4/6
4/5
5/6
0.5 mg ranibizumab 3 + PRN
PDT 1 + PRN/0.5 mg ranibizumab 3 + PRN
PDT 1 + PRN
3, 6, 9, 12
Inoue et al., 2013 [28]JapanRETROIVR (n = 33) PDT (n = 44)73.2 ± 7.5
71.0 ± 7.8
58/42
68/32
0.5 mg ranibizumab 3 + PRN
PDT 1 + PRN
3, 6, 12, 18, 24
Sakai et al., 2016 [29]JapanRETROIVR (n = 20) IVR + PDT (n = 25)75.3 ± 8.1
72.6 ± 6.2
13/7
21/4
0.5 mg ranibizumab 3 + PRN
PDT 1 + PRN/0.5 mg ranibizumab 3 + PRN
6, 12, 18, 24, 30, 36
Cho et al., 2016 [30]KoreaRETROIVA (n = 38)
IVR (n = 60)
65.37 ± 9.24
63.22 ± 10.44
26/12
41/19
2 mg aflibercept 3 + PRN
0.5 mg ranibizumab 3 + PRN
3, 6, 9, 12
Takayama et al., 2017 [31]JapanRETROIVA (n = 11) IVA + PDT (n = 12)73.5 ± 4.9
72.9 ± 5.5
6/5
6/6
0.5 mg aflibercept 3 + PRN
PDT 1 + PRN/0.5 mg aflibercept 3 + PRN
1, 2, 3, 6, 9, 12
Kikushima et al., 2017 [32]JapanRETROIVA (n = 33)
IVA + PDT (n = 33)
72.7 ± 8.5
73.4 ± 8.3
25/8
22/11
2.0 mg aflibercept 3 + PRN
PDT 1 + PRN/2.0 mg aflibercept 3 + PRN
3, 6, 9, 12
Hara et al., 2016 [33]JapanRETROIVA (n = 29)74 ± 822/62.0 mg aflibercept 3 + PRN1, 2, 3, 6, 12
Arakawa et al., 2017 [34]JapanProspectiveIVA (n = 22)62.5 ± 8.815/72.0 mg aflibercept 3 + Q2m6, 12
Maruyama-Inoue et al., 2018 [35]JapanRETROIVA 3 + PRN (n = 10)
IVA 3 + Q2m (n = 23)
67.8 ± 9.3
71.4 ± 7.8
6/4
18/5
2.0 mg aflibercept 3 + PRN
2.0 mg aflibercept 3 + Q2m
4, 12, 24, 36
Inoue et al., 2016 [36]JapanProspectiveIVA 3 + PRN (n = 25)
IVA 3 + Q2m (n = 17)
71.1 ± 10.6
71.7 ± 7.1
13/4
19/6
2.0 mg aflibercept 3 + PRN
2.0 mg aflibercept 3 + Q2m
4, 6, 12
Ogasawara et al., 2018 [37]JapanRETROPCV (n = 64)
AMD (n = 45)
72.7 ± 7.5
78.0 ± 10.2
48/16
37/8
2.0 mg aflibercept 3 + Q2mEvery month until month 12
Yamamoto et al., 2015 [38]JapanRETROIVA (n = 90)71.1 ± 7.368/192.0 mg aflibercept 3 + Q2mEvery month until month 12
Yoneda et al., 2019 [39]JapanRETROIVA (n = 20) IVR + PDT (n = 43)69.3 ± 7.5
73.3 ± 7.6
15/5
32/11
2.0 mg aflibercept 3 + Q2m
PDT 1 + PRN/0.5 mg ranibizumab 3 + PRN
3, 6, 12, 24
Oshima et al., 2017 [40]JapanProspectiveIVA (n = 50)73.6 ± 7.736/142.0 mg aflibercept 3 + Q2m6, 12
Hosokawa et al., 2017 [41]JapanRETROIVA (n = 37)73.6 (55–89)30/72.0 mg aflibercept
T&E
3, 6, 9, 12
Morimoto et al., 2017 [42]JapanRETROIVA (n = 58)72.4 ± 1.145/132.0 mg aflibercept
T&E
3, 6, 9, 12, 15, 18, 21, 24
Lee et al., 2017 [43]KoreaProspectiveIVA (n = 40)67.0 (44–84)27/132.0 mg aflibercept 3 + Q2m1, 2, 3, 4, 6, 8, 10, 12
Farooq et al., 2017 [44]USAProspectiveIVA (n = 20)68 (46–90)11/92.0 mg aflibercept 3 + Q2m6, 12

IVC: intravitreal conbercept; IVR: intravitreal ranibizumab; IVA: intravitreal aflibercept; PDT: photodynamic therapy; PRN: pro re nata; T&E: treat and extend therapy.