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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT01809223
Other study ID # KHSWKH902007
Secondary ID
Status Active, not recruiting
Phase Phase 3
First received March 11, 2013
Last updated June 3, 2014
Start date August 2012
Est. completion date March 2015

Study information

Verified date March 2014
Source Chengdu Kanghong Biotech Co.,Ltd.
Contact n/a
Is FDA regulated No
Health authority China: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

This study is design to evaluate the effect of conbercept therapy on visual acuity and anatomic outcomes compared to sham injection and durability of response observed in subjects with choroid neovascularization secondary to pathological myopia.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 176
Est. completion date March 2015
Est. primary completion date February 2014
Accepts healthy volunteers No
Gender Both
Age group 18 Years and older
Eligibility Inclusion Criteria:

1. Patients give fully informed consent and are willing and able to comply with all study procedures.

2. In the study eye:

- Myopia of equal to or greater than -6.00D,and axial length =26.5mm.

- Diagnosis of active subfoveal, juxafoveal, or extrafoveal CNV secondary to high myopia.

- Visual impairment due to CNV secondary to high myopia.

- BCVA score =24 and =73 ETDRS letters (approximately 20/40~ 20/320 Snellen equivalent).

- Ocular media of sufficient quality to obtain fundus and OCT images.

3. The BCVA score of fellow eyes = 19 ETDRS letters (approximately 20/400 Snellen equivalent)

Exclusion Criteria:

1. Current vitreous hemorrhage in either eye.

2. Intraocular treatment with corticosteroids within last 3 months or periocular treatment with corticosteroids within last month in the study eye.

3. Active infectious ocular inflammation in either eye.

4. Fibrosis or atrophy involving the center of foveal in the study eye.

5. Any concurrent intraocular condition in the study eye that, in the opinion of investigator, could either require medical or surgical intervention during the study period to prevent or treat visual loss that might result from that condition.

6. The lesion size =30 mm2 in the study eye.

7. Any ocular disorder in the study eye that, in the opinion of the investigator, may confound interpretation of the study results.

8. Uncontrolled glaucoma or cup/disk ratio > 0.8 in the study eye.

9. Aphakia (excluding artificial lens) in the study eye.

10. Serious amblyopia and amaurosis in the fellow eye.

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Drug:
conbercept, Fixed
intravitreal injection of 0.5 mg conbercept per month, fixed injection
conbercept, PRN
intravitreal injection of 0.5 mg conbercept as need, PRN
Other:
sham injection
sham intravitreal injection per month, fixed injection

Locations

Country Name City State
China Beijing Tongren hospital affiliated to Capital Medical University Beijing Beijing
China Peking Union Medical College Hospital Beijing Beijing
China Peking University Third Hospital Beijing Beijing
China West China Hospital of Sichuan University Chengdu Sichuan
China Daping Hospital, Research Institute of Surgery Third Military Medical University Chongqing Chongqing
China Southwest Hospital Chongqing Chongqing
China Zhongshan Ophthalmic Center Guangzhou Guangdong
China Ophthalmologic Hospital of Qingdao Qingdao Shandong
China Shanghai First People's Hospital Shanghai Shanghai
China The Affiliated Eye Hospital of WMC Wenzhou Zhejiang
China Wuhan General Hospital of Guangzhou Military Wuhan Hubei
China Wuxi No.2 People's Hospital Wuxi Jiangsu
China Xijing Hospital Xian Shanxi

Sponsors (1)

Lead Sponsor Collaborator
Chengdu Kanghong Biotech Co.,Ltd.

Country where clinical trial is conducted

China, 

Outcome

Type Measure Description Time frame Safety issue
Primary mean change from baseline of visual acuity to compare the mean change from baseline of best-corrected visual acuity (BCVA) between conbercept treatment group and sham injection group at month 3 3-month No
Secondary mean change from baseline of anatomical features to compare the difference of mean change from baseline of CRT, CNV size and lesion size between conbercept treatment group and sham injection group at month 3 3-month No
Secondary mean change from baseline of visual acuity to evaluate the mean change from baseline of BCVA of two groups from month 1 to month 9 9 months No
Secondary safety and tolerability of conbercept to evaluate the incidence of AEs (ocular or non-ocular) of two groups at month 3 and 9 3-month and 9-month Yes