NCT07841366

Brief Summary

The aim of this study is to evaluate the efficacy and safety of Microneedling with Phenytoin versus Microneedling alone for the Treatment of Striae alba.The study is a comparative study which will be carried on 30 patients with Striae alba. Each patient will receive four sessions three weeks apart of the following treatment: -Right side: striae on the right side will be treated by microneedling with depth (2 mm)with topical phenytoin 2% solution. -Left side: striae on the left side will be treated by microneedling alone with depth (2 mm) . The follow up will be during each session and 1 months after the last session. For treated striae alba, Microneedling will be done under aseptic conditions using isopropyl alcohol 70%.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Dec 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 15, 2025

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 18, 2026

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 20, 2026

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

September 15, 2026

Completed
10 days until next milestone

First Posted

Study publicly available on registry

September 25, 2026

Completed
Last Updated

September 25, 2026

Status Verified

September 1, 2025

Enrollment Period

5 months

First QC Date

September 15, 2026

Last Update Submit

September 20, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Change in INA score of striae alba between treatment sides

    Change in the INA score of striae alba from baseline to after completion of the four treatment sessions for each treatment side. The change in INA score will be compared between the right side treated with micro needling plus topical phenytoin and the left side treated with micro needling alone.,

    baseline (before Session 1) and Week 9 (after completion of Session 4)

  • Change in INA score of striae Alba between treatment sides.

    \- The change in (INA) score of striae alba from baseline and 1 month after the last session for each treatment side. The change in INA score will be compared between the right side treated with microneedling plus topical phenytoin and the left side treated with microneedling alone.

    Baseline (before Session 1), and 1 month after the last treatment session(weak 13).

Secondary Outcomes (2)

  • Change in pain score

    During each treatment session at Baseline (before Session 1), Week 3 (before Session 2), Week 6 (before Session 3), and Week 9 (before Session 4).

  • Change in Patient Satisfaction (PS) Score

    Baseline, after treatment at fourth session(weak 9) , and 1 month after the last treatment session(weak13).

Study Arms (2)

Micro needling +Topical Phenytoin

EXPERIMENTAL

striae on the right side will be treated by microneedling with depth (2 mm)with topical phenytoin 2% solution. A 2% Phenytoin topical solution will be prepared by dissolving the accurate amount of Phenytoin sodium in purified water using a magnetic stirrer. 15% propylene glycol will be added to this solution as a cosolvent and a viscosity modifier. The formulation will be stirred using magnetic stirring up to complete dissolving. Finally, the prepared solution will be dispensed in an amber-colored glass bottle.

Drug: PhenytoinDevice: Micro needling

Micro needling alone

ACTIVE COMPARATOR

striae on the left side will be treated by microneedling alone with depth (2 mm).

Device: Micro needling

Interventions

striae on the right side will be treated by microneedling with depth (2 mm)with topical phenytoin 2% solution. A 2% Phenytoin topical solution will be prepared by dissolving the accurate amount of Phenytoin sodium in purified water using a magnetic stirrer. 15% propylene glycolwill be added to this solution as a cosolvent and a viscosity modifier. The formulation will be stirred using magnetic stirring up to complete dissolving. Finally, the prepared solution will be dispensed in an amber-colored glass bottle.

Micro needling +Topical Phenytoin

striae on the left side will be treated by microneedling alone with depth (2 mm) .

Micro needling +Topical PhenytoinMicro needling alone

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Patients with stria alba.
  • The patient's age ≥18 years.
  • Both sex male and Femal patients
  • At least 3 stria

You may not qualify if:

  • Pregnancy or lactation.
  • Keloid or hypertrophic scar tendency
  • Active skin infection at treatment site
  • Use of isotretinoin within the past 6 months
  • Bleeding disorders or anticoagulant therapy
  • History of hypersensitivity to phenytoin
  • Chronic systemic diseases affecting wound healing (e.g., uncontrolled diabetes)
  • Previous striae treatment within the last 6 months
  • Unrealistic expectations or poor compliance
  • Premalignant or malignant lesions in the treatment area

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Al-Azhar University, Faculty of Medicine for Girls

Cairo, Cairo Governorate, 11651, Egypt

Location

MeSH Terms

Interventions

Phenytoin

Intervention Hierarchy (Ancestors)

HydantoinsImidazolidinesImidazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Each patient will receive four sessions three weeks apart of the following treatment: -Right side: striae on the right side will be treated by microneedling with depth (2 mm)with topical phenytoin 2% solution. A 2% Phenytoin topical solution will be prepared by dissolving the accurate amount of Phenytoin sodium in purified water using a magnetic stirrer. 15% propylene glycol will be added to this solution as a cosolvent and a viscosity modifier. The formulation will be stirred using magnetic stirring up to complete dissolving. Finally, the prepared solution will be dispensed in an amber-colored glass bottle.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Dermatology Resident

Study Record Dates

First Submitted

September 15, 2026

First Posted

September 25, 2026

Study Start

December 15, 2025

Primary Completion

May 18, 2026

Study Completion

June 20, 2026

Last Updated

September 25, 2026

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will not share

Locations