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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT03629639
Other study ID # 2018-MET/CSU/PSO
Secondary ID
Status Not yet recruiting
Phase Phase 4
First received
Last updated
Start date September 1, 2018
Est. completion date December 1, 2020

Study information

Verified date August 2018
Source Central South University
Contact Yi Xiao, M.D
Phone +8618674823326
Email xiaoy26@uw.edu
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Psoriasis and metabolic disorders are well-known mutual comorbidities. The investigators hypothesized metformin can ameliorate both psoriasis and metabolic disorders mainly via gut microbiota modulation. The investigators design a randomized, double-blind, placebo-controlled study to evaluate the efficacy and safety of treatment of metformin for psoriasis combined with disorders of glucose and lipid metabolism and to explore the role of gut microbiota during the process.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 80
Est. completion date December 1, 2020
Est. primary completion date September 1, 2020
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 75 Years
Eligibility Inclusion Criteria:

criteria 1 and 2 are both needed for inclusion:

1. included if all of the following criteria are met

- =18 years and =75 years

- Diagnosed according to Classification criteria for Psoriasis Vulgaris

- Understanding the whole process of the study, voluntary participation and signed the informed consent

2. included if at least one of the following criteria is met

- Body Mass Index (BMI) over 24

- impaired glucose or insulin resistance

Exclusion Criteria:

- Pregnant women, or women who ready for pregnancy or lactating;

- Have special primary endocrine system lesions that can influence glucose or lipid metabolism

- More than 20% change of their predrug body weight within a half year

- Severe diabetes which needs combined therapy

- Known major systemic diseases like cancer, liver or kidney malfunction, etc.

- Alcohol abuse

- Known severe or chronic infections like tuberculosis or HIV

- Use of other systemic medication that could influence the metabolic level

- Patients participated in any clinical trials within 3 months

- Other cases which researchers believe that can not enroll

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Metformin
An intervention of either metformin or placebo 500mg twice daily plus standard care for 12 weeks. Besides Metformin, standardized topical treatment is given to all patients; For severe psoriasis patients(PASI>8), Methotrexate will be treated orally 7.5mg every week for both the intervention group and the placebo group as a systemic standard care.

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Central South University

References & Publications (8)

Badr D, Kurban M, Abbas O. Metformin in dermatology: an overview. J Eur Acad Dermatol Venereol. 2013 Nov;27(11):1329-35. doi: 10.1111/jdv.12116. Epub 2013 Feb 26. Review. — View Citation

Brauchli YB, Jick SS, Curtin F, Meier CR. Association between use of thiazolidinediones or other oral antidiabetics and psoriasis: A population based case-control study. J Am Acad Dermatol. 2008 Mar;58(3):421-9. doi: 10.1016/j.jaad.2007.11.023. Epub 2008 Jan 14. — View Citation

Ip W, Kirchhof MG. Glycemic Control in the Treatment of Psoriasis. Dermatology. 2017;233(1):23-29. doi: 10.1159/000472149. Epub 2017 May 25. Review. — View Citation

Shin NR, Lee JC, Lee HY, Kim MS, Whon TW, Lee MS, Bae JW. An increase in the Akkermansia spp. population induced by metformin treatment improves glucose homeostasis in diet-induced obese mice. Gut. 2014 May;63(5):727-35. doi: 10.1136/gutjnl-2012-303839. Epub 2013 Jun 26. — View Citation

Singh S, Bhansali A. Randomized Placebo Control Study of Metformin in Psoriasis Patients with Metabolic Syndrome (Systemic Treatment Cohort). Indian J Endocrinol Metab. 2017 Jul-Aug;21(4):581-587. doi: 10.4103/ijem.IJEM_46_17. — View Citation

Tan L, Zhao S, Zhu W, Wu L, Li J, Shen M, Lei L, Chen X, Peng C. The Akkermansia muciniphila is a gut microbiota signature in psoriasis. Exp Dermatol. 2018 Feb;27(2):144-149. doi: 10.1111/exd.13463. — View Citation

Wang X, Li R, Zhao X, Yu X, Sun Q. Metformin Promotes HaCaT Cell Apoptosis through Generation of Reactive Oxygen Species via Raf-1-ERK1/2-Nrf2 Inactivation. Inflammation. 2018 Jun;41(3):948-958. doi: 10.1007/s10753-018-0749-z. — View Citation

Wu CY, Shieh JJ, Shen JL, Liu YY, Chang YT, Chen YJ. Association between antidiabetic drugs and psoriasis risk in diabetic patients: results from a nationwide nested case-control study in Taiwan. J Am Acad Dermatol. 2015 Jan;72(1):123-30. doi: 10.1016/j.jaad.2014.08.042. Epub 2014 Oct 16. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Number of Participants Achieving a Greater Than or Equal to 75 Percentage Improvement From Baseline in Psoriasis Area and Severity Index (PASI 75) Score at Week 12 [ Time Frame: Baseline and Week 12 ] Number of participants achieving greater than or equal to 75 percentage improvement from baseline in Psoriasis Area and Severity Index (PASI) at Week 12. PASI is the widely used tool for the measurement of severity of psoriasis. This is a test of how bad a person's psoriasis is. The combination of redness, scaling, and thickness, as well as overall body involvement determine the PASI score. The scale ranges from 0 (best) -72 (worst). Baseline visit refers to Week 0. baseline, Week 12
Secondary improvement of dermatology quality of life: Dermatology Life Quality Index Evaluated by Dermatology Life Quality Index(DLQI). DLQI is the widely used tool for the measurement of skin-health-related quality of life. It is a simple 10-question validated questionnaire that has been used in over 40 different skin conditions in over 80 countries and is available in over 90 languages.This is a scale of how bad a person's skin disease affecting his/her life. The scale ranges from 0 (best) -10 (worst). baseline, Week 12
Secondary The effect of metformin on glucose and insulin metabolism as assessed by serum marker, HOMA index HOMA index is calculated from serum glucose and insulin. The marker of glucose and insulin metabolism will be reported with pre- and post-metformin values compared. baseline, Week 12
Secondary Number of Participants Achieving a Greater Than or Equal to 90 Percentage Improvement From Baseline in Psoriasis Area and Severity Index (PASI 90) Score at Week 12 Number of participants achieving greater than or equal to 90 percentage improvement from baseline in Psoriasis Area and Severity Index (PASI) at Week 12. PASI is the widely used tool for the measurement of severity of psoriasis. This is a test of how bad a person's psoriasis is. The combination of redness, scaling, and thickness, as well as overall body involvement determine the PASI score. The scale ranges from 0 (best) -72 (worst). baseline, Week 12
Secondary The effect of metformin on glucose and insulin metabolism as assessed by clinical marker, weight (kg) The clinical marker will be reported with pre- and post-metformin values compared. baseline, Week 12
Secondary The effect of metformin on gut-microbiota profile of pre- and post-metformin samples fecal macrobiotic profile.
Comparison of gut microbiota in pre-and post-metformin samples.
baseline, Week 12