USE THE SYSTEMIC METFORMIN IN MELASMA
Summary
Melasma is a chronic and relapsing acquired dyschromia due to an increased epidermal-melanin unit activity that affects sun-exposed areas mainly in women throughout the reproductive years. It is more common in women, accounting for 90% of all cases.The majority of patients are in third and fourth decades of their life. There are several risk factors that influence its appearance including genetic predisposition,exposure to heat and UV radiation, pregnancy, and exogenous hormones (such as oral contraceptives,thyroid hormones, and hormone replacement therapy). Other factors implicated are phototoxic drugs, anticonvulsant medications,and the use of certain cosmetics. Types of melasma are epidermal, dermal and mixed according to location of melanin.
Timeline
- Start
- 2019-04-01
- Primary completion
- 2021-08
- Completion
- 2021-08
Publications
- Results Handel AC, Miot LD, Miot HA. Melasma: a clinical and epidemiological review. An Bras Dermatol. 2014 Sep-Oct;89(5):771-82. doi: 10.1590/abd1806-4841.20143063.
- Results Moubasher AE, Youssef EM, Abou-Taleb DA. Q-switched Nd: YAG laser versus trichloroacetic acid peeling in the treatment of melasma among Egyptian patients. Dermatol Surg. 2014 Aug;40(8):874-82. doi: 10.1097/DSS.0000000000000065.
- Results Brianezi G, Handel AC, Schmitt JV, Miot LD, Miot HA. Changes in nuclear morphology and chromatin texture of basal keratinocytes in melasma. J Eur Acad Dermatol Venereol. 2015 Apr;29(4):809-12. doi: 10.1111/jdv.12453. Epub 2014 Mar 14.
- Results Kong SH, Suh HS, Choi YS. Treatment of Melasma with Pulsed-Dye Laser and 1,064-nm Q-Switched Nd:YAG Laser: A Split-Face Study. Ann Dermatol. 2018 Feb;30(1):1-7. doi: 10.5021/ad.2018.30.1.1. Epub 2017 Dec 26.
- Results Lehraiki A, Abbe P, Cerezo M, Rouaud F, Regazzetti C, Chignon-Sicard B, Passeron T, Bertolotto C, Ballotti R, Rocchi S. Inhibition of melanogenesis by the antidiabetic metformin. J Invest Dermatol. 2014 Oct;134(10):2589-2597. doi: 10.1038/jid.2014.202. Epub 2014 Apr 22.
- Results Sarkar R, Arora P, Garg VK, Sonthalia S, Gokhale N. Melasma update. Indian Dermatol Online J. 2014 Oct;5(4):426-35. doi: 10.4103/2229-5178.142484.
- Results Sheth VM, Pandya AG. Melasma: a comprehensive update: part I. J Am Acad Dermatol. 2011 Oct;65(4):689-697. doi: 10.1016/j.jaad.2010.12.046.
- Results Sheth VM, Pandya AG. Melasma: a comprehensive update: part II. J Am Acad Dermatol. 2011 Oct;65(4):699-714. doi: 10.1016/j.jaad.2011.06.001.
- Results Majid I, Haq I, Imran S, Keen A, Aziz K, Arif T. Proposing Melasma Severity Index: A New, More Practical, Office-based Scoring System for Assessing the Severity of Melasma. Indian J Dermatol. 2016 Jan-Feb;61(1):39-44. doi: 10.4103/0019-5154.174024.
- Ismail SA, Mohamed GA, Mohamedeen KN, Sotohy RSA, Bakr RM. Does Systemic Metformin Have a Role in Treating Melasma? Dermatol Surg. 2024 Apr 1;50(4):366-371. doi: 10.1097/DSS.0000000000004092. Epub 2024 Feb 28.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Metformin | Small molecule | 500 mg | Oral |
| Subject | Metformin | Small molecule | 1000 mg | Oral |
| Background | Trichloroacetic acid | Small molecule | 25 % | Topical |