Microneedling vs. 5-Fluorouracil or Steroid Injections for Hypertrophic Scars and Keloids (MIST)

July 21, 2026 updated by: Shimaa Ismail Abdelhamid, Alexandria University

Microneedling With 5-Fluorouracil Versus Intralesional 5-Fluorouracil or Corticosteroids for Hypertrophic Scars and Keloids

The goal of this clinical trial is to learn about the efficacy and safety of microneedling-assisted 5-fluorouracil delivery in comparison with intralesional 5-fluorouracil, intralesional corticosteroid, and microneedling with saline for the treatment of pathological scars.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Hypertrophic scars and keloids are dermal fibroproliferative disorders unique to humans. They are common and usually occur following burns, trauma, inflammation, or surgery, but sometimes occur spontaneously. Despite an array of therapeutic approaches for scar therapy such as surgical excision, occlusive dressings, topical and intralesional corticosteroids, interferon, cryosurgery, radiation, pressure therapy, laser therapy, retinoic acid, and silicone gel sheeting, no single method provides complete benefit. For this reason, the medical care of HTSs and keloids remains clinically challenging. The study was conducted on 60 patients complaining of HTSs & keloids.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
60

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

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

Study Locations

  • Egypt
      • Alexandria, Egypt
        • alexandria University Hospital

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • patients diagnosed with HTSs or keloids

Exclusion Criteria:

  • pregnant or lactating females, immunocompromised patients

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: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Microneedling with 5-Fluorouracil
Intervention Name: Microneedling With 5 Fluorouracil Intervention Type: Procedure
Procedure: Microneedling with 5-Fluorouracil
Undiluted 5-FU was applied topically after microneedling
Active Comparator: Intralesional 5-Fluorouracil
Intervention name: Intralesional 5-Fluorouracil Intervention Type: drug
Drug: Intralesional 5-fluorouracil
undiluted 5-fluorouracil was applied topically
Active Comparator: Intralesional Corticosteroids
Intervention name: Intralesional Triamcinolone Acetonide Intervention type: drug
Drug: Intralesional Triamcinolone Acetonide
Triamcinolone acetonide was administered intralesionally
Placebo Comparator: Microneedling with normal saline
Intervention name: Microneedling with normal saline Intervention type: Procedure
Procedure: Microneedling With saline
saline was applied after microneedling

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Vancouver Scar Scale
Time Frame: 3 weeks
To detect the Change in scar severity assessed by the Vancouver Scar Scale based on four scar characteristics (vascularity 0-3, pliability 0-5, height 0-3, pigmentation 0-2) with the minimum total score 0 (normal) and the maximum total score 13 (most severe scar). Higher scores after treatment mean worse outcome.
3 weeks
ImageJ Analysis
Time Frame: 3 weeks

To objectively assess scar surface area. To quantify treatment effect, the percentage of change in scar area was calculated for each patient using the formula:

■("Percentage of change=" ("Post treatment area - Baseline area" /"Baseline area" )"×100" ), Higher scores mean worse outcomes.
3 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Patient's satisfaction score
Time Frame: 3 weeks
grade 0 (No satisfaction), grade I (poor less than 25%), grade II (fair 25-50%), grade III (Good 51-75%) and grade IV (Excellent 76-100%). The minimum total score 0 and the maximum total score 100. The higher scores mean a better outcome
3 weeks
visual analogue scale
Time Frame: 3 weeks
to assess pain and pruritus. The minimum score is 0 indicated no pain or itching and the maximum score 10 represented the most severe pain or itching. The higher score mean a worse outcome
3 weeks

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Alexandria University

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Shaimaa Ismail Omar, MD, Alexandria University
  • Study Director: Yehia Farouk Al-Jarem, MD, Alexandria University
  • Study Chair: Alaa Tarek Abd El Maksoud, MBBCH, Alexandria University
  • Study Chair: Marwa Essawy, Alexandria 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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 12, 2023

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 15, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 8, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 17, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 17, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 21, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 22, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 21, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 0107751
  • 00012098 (Other Identifier: (IRB))

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

PD will not be shared due to participant confidentiality and ethical considerations

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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Sponsors and Collaborators

Medical Conditions

Drug Interventions

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

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Locations

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