A Study of Keluo Xin Capsule Compare to Placebo in Terms of Efficacy and Safety in Patients With Diabetic Retinopathy

PHASE2UnknownINTERVENTIONAL

Enrollment

198

Participants

Timeline

Start Date

August 31, 2017

Primary Completion Date

August 31, 2019

Study Completion Date

February 28, 2020

Conditions

Moderately Severe to Severe NPDR

Interventions

DRUG

Keluo Xin capsule

four capsules at a time, three times a day, taken orally and consecutively for 24 weeks or 48 weeks.

DRUG

Placebo oral capsule

four placebo capsules at a time, three times a day, taken orally and consecutively for 24 weeks or 48 weeks.