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Efficacy of Topical Metformin in Psoriasis Vulgaris

Efficacy and Safety of Topical Metformin in Psoriasis Vulgaris: A Randomized, Double Blinded, Placebo-controlled Study.

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07516821
Enrollment
55
Registered
2026-04-08
Start date
2026-04-01
Completion date
2026-09-01
Last updated
2026-04-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Psoriasis Vulgaris

Brief summary

The goal of this clinical trial is to learn if topical metformin works to treat mild psoriasis vulgaris. It will also learn about the safety of topical metformin. The main questions it aims to answer are: Does topical metformin improve psoriatic plaques in early psoriasis? What medical problems do participants have when use topical metformin? Researchers will compare topical metformin to a placebo (a look-alike substance that contains no drug) to see if topical metformin works to treat psoriasis vulgaris. Participants will: put topical metformin or placebo twice daily for 2 months. Visit the clinic once every months for follow up. Keep a diary of their symptoms and any side effects. Skin biopsy will be taken from psoriatic plaque before starting treatment and another one will be taken after 2 months of starting treatment to assess the level of IL-17.

Interventions

Metformin 30% loaded cream will be prepared using stearic acid as a lipid phase for group 1.

DRUGPlacebo

a plain similar cream (without metformin) will be prepared as a placebo.

Sponsors

Cairo University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients ≥ 18 years old * Patients of both genders * Patients with mild chronic plaque psoriasis ((PASI) \< 10, and body surface area (BSA) \< 10% and/or Dermatology Life Quality Index (DLQI) \<10).

Exclusion criteria

* Intake of anti-psoriatic systemic therapy within the last 3 months apart from retinoids, or topical treatments within the last 2 weeks. * Intake of systemic metformin. * Intake of other systemic drugs that exacerbate psoriasis as anti-malarial drugs, Angiotensin- converting-enzyme inhibitors (ACEI), Ca channel blockers (CCBs) and beta blockers or intake of non-steroidal anti- inflammatory drugs (NSAID) within the last 2 weeks. * Patients with psoriatic arthritis. * Patients with pustular psoriasis. * Pregnant and Lactating females.

Design outcomes

Primary

MeasureTime frame
Assessment and comparison of tissue levels of interleukin 17 (IL - 17) between the topical metformin and placebo group.8 weeks after starting treatment
Comparison of percent PASI improvement from baseline between the topical metformin and placebo groups.8 weeks after starting treatment

Secondary

MeasureTime frame
Comparison of percentage of patients who achieved ≥4-point improvement from baseline worst itch numeric rating score (WI- NRS) between the topical metformin and placebo groups.8 weeks after starting treatment

Countries

Egypt

Contacts

CONTACTYasmine A Obaid, MSc
yasmeenahmed013@gmail.com02-01270047877

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 14, 2026