Combined Microneedling With Either 1% Lactic Acid Solution or Vitamin D3 or Triamcinolone Acetonide in The Treatment of Alopecia Areata

January 23, 2026 updated by: Rana Ehab, Zagazig University

Comparative Study of Combined Microneedling With Either 1% Lactic Acid Solution or Vitamin D3 or Triamcinolone Acetonide in The Treatment of Alopecia Areata

Alopecia areata (AA) is an immunologically mediated disease characterized by non-scarring hair loss (Madni and Shapiro, 2000). AA is presented by rapid and complete hair loss in one or more round or oval patches, usually on the scalp, beard area, eyebrows, eyelashes, and less commonly, on other hairy areas of the body (Berker et al., 2010 and James et al., 2011) Alopecia areata is a T-cell-mediated autoimmune disease. There is a complicated interplay between loss of immune privilege in the hair follicle, autoimmune-mediated hair follicle damage, and activation of inflammatory pathways that have been argued to explain the development of this disorder, but the exact pathophysiology of AA remains unknown. Hair follicles are infiltrated by autoreactive CD8 and CD4 T lymphocytes, which attack hair follicle-derived autoantigens while sparing the stem compartment (Rajabi et al., 2018).

Alopecia areata can be treated with topical and/or intralesional corticosteroids, which are the treatment of choice. Anthralin, minoxidil, coal tar, and topical immunotherapy are examples of other topical treatments. Systemic immunosuppressants such as cyclosporine, systemic steroids, Janus kinase inhibitors, and methotrexate may be considered in severe resistant cases (lee and lee, 2017).

Intralesional triamcinolone acetonide is preferred in cases of AA , as it is well known as anti-inflammatory and interferes with local immunity of the skin, which helps in the recovery of the disease, but if used in wrong technique or given in a high dose, it might cause all the side effects of corticosteroid, especially skin atrophy (Berker et al., 2010).

Lactic acid is a member of alpha-hydroxy acids. It has been used in the treatment of many skin diseases, like AA and vitiligo. Lactic acid stimulates spontaneous secretion of vascular endothelial growth factor (VEGF) by human reconstructed epidermis. VEGF is an angiogenic cytokine involved in angiogenesis and wound healing and stimulates the growth of hair follicles resulting in recovery of AA. Other studies suggest that lactic acid may act through its irritant effect (Al-Tammimy, 2005).

Vitamin D interacts with the innate and adaptive immune systems in a variety of ways, the majority of which contribute to its downregulation (Nancy and Yehuda, 2009). It has a powerful effect on T and B lymphocytes, influencing their activation responses (Arnson et al., 2007).

All cells of the immune system express 1,25-dihydroxyvitamin D3 receptors (VDRs) and are therefore vulnerable to calcitriol-mediated modulation. Vitamin D3 has the ability to influence the migration and maturation of different dendritic cell subtypes and their production of chemokines and cytokines, giving them an immunoregulatory and tolerogenic role (Illescas-Montes et al., 2019) It has been shown that VDRs are highly expressed in the keratinocytes of human hair follicles and the absence of their expression is associated with reduced hair follicle growth and epidermal differentiation. Reduced VDR expression in the hair follicles of affected areas has also been observed in studies of AA patients' scalp (Çerman et al., 2015).

Microneedling (MN) is a technique that comprises puncturing the skin repeatedly with sterile microneedles (Iriarte et al., 2017). It promotes hair regeneration by triggering stem cells in the hair bulge, which results in the generation of growth factors. It also improves blood circulation to the hair follicles and influences the local immune cells (Chandrashekar et al., 2014). Moreover, combining MN with applied topical drugs facilitates their absorption through the microchannels created within the epidermis (Fertig et al., 2018).

Study Overview

Detailed Description

Patients in all groups will be subjected to microneedling (MN) using a dermapen "Dr.Pen") with adjustable needle length ranging from 1.5 to 2 mm, using the highest speed level (4-5). First, topical anesthetic cream will be applied. Then, they will be stroked by dermapen diagonally, vertically, and horizontally in a repeated manner until pinpoint bleeding appears which will be regarded as an endpoint.

  • First group (A): 22 AA patients will be treated with MN combined with lactic acid solution 1%. (Sharquis et al., 2015).
  • Second group (B): 22 AA patients will be treated with MN combined with topical application of vitamin D3 (an aqueous preparation of cholecalciferol (Devarol® ampoule 200 000 IU/2 ml, Memphis, Egypt) (2.5 mg/ ml), The maximum total amount of vitamin D3 injected into a patient in every session will be 2.5 mg (1 ml) (Ali et al., 2023).
  • Third group (C): 22 AA patients will be treated with MN combined with triamcinolone acetonide injectable suspension (Epirelefan®, 40mg/ ml, Eipico, Egypt) (10 mg/ml) will be used in a dose of 0.1 ml/cm2 area (Arora et al., 2022).
  • Fourth group (D): 22 AA patients will be treated with MN combined with normal saline 0.9% In all groups, sessions were done every 2 weeks for a maximum of six sessions. V. Photographs will be taken by (Iphone 13 pro max Camera) before, during and after treatment.

Study Type

Interventional

Enrollment (Estimated)

88

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • · Age ≥ 16 years old with localized patchy AA (up to 6 cm in diameter).

    • Patients of both sexes
    • Willing to participate in the study and to sign an informed consent.

Exclusion Criteria:

  • · Patients who received systemic or topical treatment for AA in the last 3 months prior to the start of the study

    • Patients with Alopecia totalis, universalis, ophiasis, or sisaipho
    • Pregnant or lactating females
    • Patients who had bleeding or coagulation disorders
    • Immunocompromised patients
    • Patients with known history of hypersensitivity to vit D
    • Patients taking vitamin D supplements in the last 6 months.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: lactic acid group
· First group (A): 22 AA patients will be treated with MN combined with lactic acid solution 1%.
patients will be treated with MN combined with lactic acid solution 1%.
Experimental: vitamin d3
· Second group (B):22 AA patients will be treated with MN combined with topical application of vitamin D3 (an aqueous preparation of cholecalciferol (Devarol® ampoule 200 000 IU/2 ml, Memphis, Egypt) (2.5 mg/ ml), The maximum total amount of vitamin D3 injected into a patient in every session will be 2.5 mg (1 ml)
patients will be treated with MN combined with topical application of vitamin D3 (an aqueous preparation of cholecalciferol (2.5 mg/ ml), The maximum total amount of vitamin D3 injected into a patient in every session will be 2.5 mg (1 ml)
Experimental: triamcinolone acetonide group
· Third group (C): 22 AA patients will be treated with MN combined with triamcinolone acetonide injectable suspension (Epirelefan®, 40mg/ ml, Eipico, Egypt) (10 mg/ml) will be used in a dose of 0.1 ml/cm2 area
patients will be treated with MN combined with triamcinolone acetonide injectable suspension (Epirelefan®, 40mg/ ml, Eipico, Egypt) (10 mg/ml) will be used in a dose of 0.1 ml/cm2 area
Experimental: saline
· Fourth group (D): 22 AA patients will be treated with MN combined with normal saline 0.9%
patients will be treated with MN combined with normal saline 0.9%

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
hair regrowth improvement assessed by SALT score and percaentage of hair growth
Time Frame: 3 months
Clinical scoring: The evaluation of therapeutic response will be carried out by three blinded investigators to determine the percentage of improvement as follows using SALT score and percentage of hair growth (A0 = no change or further hair loss, A1=1-24% regrowth, A2= 25-49%, A3=50-74%, A4= 75-99%, A5= 100% regrowth
3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: rana ehab, md, Zagazig University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 15, 2023

Primary Completion (Estimated)

December 30, 2026

Study Completion (Estimated)

December 30, 2026

Study Registration Dates

First Submitted

March 18, 2024

First Submitted That Met QC Criteria

March 22, 2024

First Posted (Actual)

March 25, 2024

Study Record Updates

Last Update Posted (Actual)

January 26, 2026

Last Update Submitted That Met QC Criteria

January 23, 2026

Last Verified

January 1, 2026

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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