300
Participants
Start Date
March 31, 2015
Primary Completion Date
December 30, 2020
Study Completion Date
December 31, 2020
Saxagliptin
Take saxagliptin tablet 5mg p.o. qd. for 104 weeks after randomization.
Vitamin D3
Take vitamin D drops 2000 IU p.o. qd. for 104 weeks after randomization.
Insulin
For optimal control of patients' glucose, researchers can initiate insulin therapy at any time in this trial, choose any brands of insulin after discussion with the patient.
Metformin
Take Metformin tablet 1.5g p.o. per day for 104 weeks (adjust the dose between 1-1.7g per day according to subject's specific situation) before or after randomization.
Peking University People's Hospital, Beijing
Beijing Hospital of the Ministry of Health, Beijing
The First Hospital of China Medical University, Shenyang
The Second Hospital of Jilin University, Changchun
Jilin Province People's Hospital, Changchun
Affiliated Heji Hospital of Changzhi Medical College, Changzhi
Harbin Medical University, Harbin
Shanghai Xuhui District Central Hospital, Shanghai
Jiangsu Province Hospital, Nanjing
The Northern Jiangsu People's Hospital, Yangzhou
The Affiliated Hospital of Qingdao University, Qingdao
The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou
The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou
The First Affiliated Hospital of Nanchang University, Nanchang
The Third Affiliated Hospital of Nanchang University, Nanchang
Quanzhou First Hospital, Fujian, Quanzhou
The First Affiliated Hospital of Fujian Medical University, Fujian
The First Affiliated Hospital of Chongqing Medical University, Chongqing
Institute of Metabolism and Endocrinology, Second Xiangya Hospital, Central South University, Changsha
The First People's Hospital of Yueyang, Yueyang
The First People's Hospital of Changde, Changde
The First People's Hospital of Huaihua, Huaihua
The First Affiliated Hospital of South China University, Hengyang
The Second Hospital University of South China, Hengyang
Henan Provincial People's Hospital, Zhengzhou
The First Affiliated Hospital of Henan University of Science and Technology, Luoyang
Guangdong General Hospital, Guangzhou
Guangzhou First People's Hospital, Guangzhou
The First Affiliated Hospital of Guangzhou Medical University, Guangzhou
Dongguan People's Hospital, Dongguan
The First Affiliated Hospital of Guangxi Medical University, Nanning
Hainan General Hospital, Haikou
First People's Hospital of Yunnan Province, Kunming
The First Affiliated Hospital of The Fourth Military Medical University, Xi’an
Gansu Provincial Hospital, Lanzhou
Tangshan Gongren Hospital063000, Tangshan
Tangshan Gongren Hospital, Tangshan
The Affiliated Hospital of Inner Mongolia Medical University, Hohhot
Heping Hospital of Changzhi Medical College, Changzhi
Beijing Hospital
OTHER_GOV
The First Affiliated Hospital with Nanjing Medical University
OTHER
First Affiliated Hospital of Chongqing Medical University
OTHER
The First Affiliated Hospital of Henan University of Science and Technology
OTHER
Second Xiangya Hospital of Central South University
OTHER