NCT06813963

Brief Summary

The goal of this clinical trial is to evaluate whether topical Minoxidil can restore hair pigmentation in individuals with non-pathological graying hair. The study population includes male and female participants aged \[18to65\] who have non-pathological graying of hair, meaning their graying is not due to any underlying medical conditions. The main questions it aims to answer are: Does topical Minoxidil improve hair pigmentation in individuals with non-pathological graying hair? What medical problems do participants have when topical use minoxidil? Researchers will compare participants receiving topical Minoxidil to those receiving a placebo to determine whether Minoxidil has a significant effect on restoring hair pigmentation. Participants will: Topical use minoxidil or a placebo twice a day for 12 months Visit the clinic once every months for checkups and tests Report any adverse effects or changes in hair characteristics throughout the study.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
141

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Feb 2025

Shorter than P25 for phase_4

Geographic Reach
1 country

2 active sites

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

First Submitted

Initial submission to the registry

February 3, 2025

Completed
4 days until next milestone

First Posted

Study publicly available on registry

February 7, 2025

Completed
8 days until next milestone

Study Start

First participant enrolled

February 15, 2025

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 15, 2026

Completed
28 days until next milestone

Study Completion

Last participant's last visit for all outcomes

March 15, 2026

Completed
Last Updated

April 20, 2026

Status Verified

April 1, 2026

Enrollment Period

1 year

First QC Date

February 3, 2025

Last Update Submit

April 15, 2026

Conditions

Keywords

white hair

Outcome Measures

Primary Outcomes (1)

  • Reduction in the appearance gray hair grade

    we divided gray hair appearance into 11 progressive levels of severity, ranging from grade 0: fully pigmented(%), to grade 10:completely unpigmented(100%).Two trained physicians (blinded to the trial group assignments) used a gray hair appearance color scale to rate patients' gray hair appearance to determine whether the primary outcome definition was met.

    From enrollment to the end of treatment at 12 months

Secondary Outcomes (4)

  • Reduction 2 level in the appearance gray hair grade

    From enrollment to the end of treatment at 12 months

  • White hair percent change from baseline

    From enrollment to the end of treatment at 12 months

  • Grayscale change

    From enrollment to the end of treatment at 12 months

  • Amount of repigment white hair

    From enrollment to the end of treatment at 12 months

Study Arms (2)

5%minoxidil group

EXPERIMENTAL

Participants will apply high concentration Minoxidil (e.g., 5% Minoxidil solution) to the scalp twice daily for 12 months. The main purpose of the treatment is to evaluate the efficacy of high-concentration Minoxidil for treating non-pathological graying and to monitor its safety and tolerability.

Drug: Topical Minoxidil(5%) to the scalp.

Placebo Group

PLACEBO COMPARATOR

This group will receive a placebo solution (similar in appearance and odor to Minoxidil but without the active ingredient), applied to the scalp twice daily for 12months. This placebo group will serve as a control for comparing the effects of Minoxidil on non-pathological graying of hair.

Drug: Placebo

Interventions

The patient will apply 5% Minoxidil topical solution to the scalp twice daily, with 7 sprays (approximately 1 mL) per application, for a duration of 12 months.

5%minoxidil group

The patient will apply placebo to the scalp twice daily, with 7 sprays (approximately 1 mL) per application, for a duration of 12 months.

Placebo Group

Eligibility Criteria

Age18 Years - 65 Years
Sexall(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • The patients included in the study were those with a visible gray hair grading score of 2 or higher at screening and baseline visits, with depigmented hair shafts observable under dermoscopy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Nanfang Hospital, Southern Medical University

Guangzhou, Guangdong, 510515, China

Location

The First People's Hospital of Zhaoqing

Zhaoqing, Guangdong, 526060, China

Location

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, CARE PROVIDER
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Doctoral Student in Plastic Surgery

Study Record Dates

First Submitted

February 3, 2025

First Posted

February 7, 2025

Study Start

February 15, 2025

Primary Completion

February 15, 2026

Study Completion

March 15, 2026

Last Updated

April 20, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share
Shared Documents
STUDY PROTOCOL, SAP

Locations