A Clinical Trial of Metformin to Decrease Glucocorticoids Side Effects in Patients With Autoimmune Uveitis

Multicenter, Randomized, Controlled Clinical Trial Research Evaluating the Use of Combination Therapy of Glucocorticoids and Metformin to Decrease Glucocorticoids Side Effects in Patients With Autoimmune Uveitis

Sponsors

Lead Sponsor: Tianjin Medical University

Collaborator: Peking Union Medical College Hospital
Peking University First Hospital
Zhongshan Ophthalmic Center, Sun Yat-sen University

Source Tianjin Medical University
Brief Summary

This project is designed to evaluating the use of combination therapy of glucocorticoid and metformin to decrease glucocorticoid side effects in participants with autoimmune uveitis.This study also aims to evaluate the anti-inflammatory and immunosuppressive effects of combination therapy.

Detailed Description

Approval of the study was obtained from the hospital's ethical committee. The study design and methodology followed the tenets of Declaration of Helsinki. All participants were provided with written informed consent and received a thorough explanation of the study design, aims, and the side effect of metformin. This is a multicenter, randomized, controlled clinical trial research. According to 1:1 ratio, all participants are randomly divided into two groups, the metformin group and placebo group. According to the fasting blood glucose (FBG), triglycerides (TG),total cholesterol (TC) and body mass index (BMI), the investigators compared experimental group with control group to evaluate whether the use of combination therapy of glucocorticoid and metformin decrease glucocorticoid side effects in participants with autoimmune uveitis. According to best corrected visual acuity (BCVA), anterior chamber and vitreous inflammation, fluorescence fundus angiography (FFA), electroretinogram (ERG) and so on, the investigators evaluate the anti-inflammatory and immunosuppressive effects of metformin in treatment of autoimmune uveitis.

Overall Status Recruiting
Start Date 2018-11-01
Completion Date 2023-01-01
Primary Completion Date 2023-01-01
Phase N/A
Study Type Interventional
Primary Outcome
Measure Time Frame
The incidence of abnormal metabolic indexes 24 weeks
Enrollment 138
Condition
Intervention

Intervention Type: Drug

Intervention Name: Metformin

Description: The investigators assumed that the combination therapy of metformin and glucocorticoids can decrease glucocorticoids side effects and synergia the anti-inflammatory and immune inhibitory effect of glucocorticoids. So the investigators use metformin in the experimental group.

Arm Group Label: Metformin group

Intervention Type: Drug

Intervention Name: Placebo

Description: The investigators use placebo in the control group.

Arm Group Label: Placebo group

Eligibility

Criteria:

Inclusion Criteria: 1. Attending Tianjin Medical University Eye Hospital, ophthalmology department of Peking Union Medical College Hospital, ophthalmology department of Peking University First Hospital and Zhongshan Ophthalmic Center Sun Yat-sen University from January 2018 to January 2022. 2. Chronic and non-infectious autoimmune uveitis with systemic glucocorticoids treatment (Initiation dosage ≥ 1 mg/kg/d or ≥ 50 mg/d). 3. FBG < 6.1 mmol/L, HbAlc<6.O%, TC <5.2 mmol/L(200 mg/d1) and TG <1.7 mmol/L(150 mg/dl). 4. All genders, age ≥ 18 years old. 5. Ready for systemic glucocorticoids treatment. 6. Willing to follow all study requirements and sign the informed consent. 7. Without history of cancer and serious systemic diseases. Exclusion Criteria: 1. Participate in other clinical trials within the preceding one years 2. Planning ophthalmologic surgery over the next three months. 3. With other sight-threatening diseases except cataract, such as glaucoma, diabetic retinopathy, retinal detachment, and so on. 4. Taking or will take immunosuppressants which affecting glycometabolism and lipid metabolism except methotrexate and azathioprine. 5. Any known history of a serious infection (e.g., HIV, hepatitis, pneumonia, syphilis or tuberculosis). 6. Any known history of diabetes mellitus, severe hepatic, renal or heart disease. 7. Any known history of drug addiction, drug abuse and malignant tumor. 8. Presence of a transplanted solid organ. 9. Pregnant women and nursing mothers. 10. Any known history of mental disorders.

Gender: All

Minimum Age: 18 Years

Maximum Age: 80 Years

Healthy Volunteers: No

Overall Official
Last Name Role Affiliation
Xiaorong Li, M.D. Study Director Tianjin Medical University Eye Hospital
Overall Contact

Last Name: Xiaomin Zhang, M.D.

Phone: +86-13920023990

Email: [email protected]

Location
Facility: Status: Tianjin Medical University Eye Hospital
Location Countries

China

Verification Date

2019-09-01

Responsible Party

Type: Principal Investigator

Investigator Affiliation: Tianjin Medical University

Investigator Full Name: Xiaomin Zhang

Investigator Title: Director of the Tianjin Medical University Eye Institute,archiater

Has Expanded Access No
Condition Browse
Number Of Arms 2
Arm Group

Label: Metformin group

Type: Experimental

Description: Oral metformin 500 mg once daily for first week, 500 mg twice daily for next 23 weeks. The follow-up treatment according to the participants' condition.

Label: Placebo group

Type: Placebo Comparator

Description: Oral placebo 500 mg once daily for first week, 500 mg twice daily for next 23 weeks. The follow-up treatment according to the participants' condition.

Patient Data Yes
Study Design Info

Allocation: Randomized

Intervention Model: Parallel Assignment

Primary Purpose: Treatment

Masking: Double (Participant, Investigator)

Source: ClinicalTrials.gov

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