NCT03475524

Brief 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.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Apr 2019

Typical duration for phase_4

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 14, 2018

Completed
9 days until next milestone

First Posted

Study publicly available on registry

March 23, 2018

Completed
1 year until next milestone

Study Start

First participant enrolled

April 1, 2019

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2021

Completed
Last Updated

August 3, 2021

Status Verified

August 1, 2021

Enrollment Period

2.3 years

First QC Date

March 14, 2018

Last Update Submit

August 1, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • degree of improvement of melasma

    Melasma Area and Severity Index score will be calculated for patients before and after treatment to all patientsscore is calculated by multiplying the area of involvement with the square of pigmentation as given in the formula: MSI = 0.4 (a Ă— p 2 ) l + 0.4 (a Ă— p 2 ) r + 0.2 (a Ă— p 2 ) n In the formula, "a" stands for "area of involvement," "p" for "severity of pigmentation," "l" for left face, "r" for right face, and "n" for nose. The area involved, as well as the severity of pigmentation is scored from 0 to 4Score 0:No visible pigmentation,score 1 :rarely visible pigmentation scor e 2:mild pigmentation score3: moderate pigmentation score 4:sever pigmentation.scoringfor area of involvement less than or equal 10% area involved-scor1,11-30%-score2 ,31-60%-score3 and more than 60%-score 4 . patient will be photographed at baseline and after every two weeks interval and one month after the last session

    up to 3 months

Study Arms (3)

study Metformin 1000 mg

EXPERIMENTAL
Drug: MetFORMIN 1000 Mg Oral TabletDrug: Trichloroacetic Acid Peeling

study Metformin 500 mg

EXPERIMENTAL
Drug: Trichloroacetic Acid PeelingDrug: MetFORMIN 500 Mg Oral Tablet

control group

PLACEBO COMPARATOR
Drug: PlacebosDrug: Trichloroacetic Acid Peeling

Interventions

oral tablet 1ooomg systemic metformin will be given to group

Also known as: Glucophage
study Metformin 1000 mg

oral placebos will be given to control beside trichloracetic acid peeling

control group

Trichloroacetic acid peeling to the three groups

control groupstudy Metformin 1000 mgstudy Metformin 500 mg

oral tablet 500 mg

Also known as: Glucophage
study Metformin 500 mg

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • All patients above 18 years old with melasma.
  • With Fitzpatrick skin phototypes ranging from Type III-V will recruited.

You may not qualify if:

  • Pregnant or nursing women.
  • Current use of hormonal birth control medication or any hormonal therapy, Use of topical hydroquinone within 3 months of study, Use of topical steroids within 1 month of study, Regular use of tanning parlors and History of laser or dermabrasion to the face within 9 months of study.
  • Occupation involving primarily outdoor activities.
  • History of kidney dysfunction diabetic (excluded by history and laboratory), Significant cardiovascular or respiratory disease and any other systemic diseases(i.e,history of endocrine disorders).
  • patients with poor wound healing, recurrent herpes labialis and current skin infection (facial warts, molluscum contagiosum, history of hypertrophic scar/keloids, active dermatosis of atopic, seborrheic or other eczematous type).
  • Photosensitivity,

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Assuit University

Asyut, 71111, Egypt

RECRUITING

Related Publications (10)

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

MeSH Terms

Conditions

Melanosis

Interventions

MetforminTablets

Condition Hierarchy (Ancestors)

HyperpigmentationPigmentation DisordersSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

BiguanidesGuanidinesAmidinesOrganic ChemicalsDosage FormsPharmaceutical Preparations

Central Study Contacts

Sahar Ismail, professor

CONTACT

Radwa Bakr, lecturer

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principle investigator

Study Record Dates

First Submitted

March 14, 2018

First Posted

March 23, 2018

Study Start

April 1, 2019

Primary Completion

August 1, 2021

Study Completion

August 1, 2021

Last Updated

August 3, 2021

Record last verified: 2021-08

Locations