A Study on Scalp Health and Integrated Scalp Management Protocols for Hair Transplant Patients

Overview

A total of 120 Chinese male subjects aged 18-50 years who have undergone hair transplantation are planned to be enrolled in this study. Among them, 90 participants with mild-to-moderate scalp seborrheic dermatitis (hereinafter abbreviated as SD) will be stratified and randomly allocated into two groups based on a randomization table with stratification factors including SD severity grading, alopecia classification and age. Subjects in the test product group (hereinafter referred to as the holistic group) will use the test shampoo plus basic shampoo, while those in the basic control group will receive only basic shampoo. The remaining 30 non-SD subjects will constitute the non-SD control group and use basic shampoo alone. 1. Primary Objective To compare pre- and post-treatment changes in clinical, physiological, biological and microecological parameters related to SD manifestations, scalp health and skin barrier repair (including transepidermal water loss, scalp hydration, scalp sebum content, etc.) between the holistic group receiving the investigational shampoo regimen and the basic control group via non-invasive instrumental measurement, clinical assessment, clinical photography and subject self-evaluation. The safety and efficacy of the test product in improving scalp condition and skin barrier function will be evaluated, and its potential underlying mechanisms will be explored. 2. Secondary Objective To investigate the impacts of the test product versus the control shampoo on hair transplant-associated complications (e.g., folliculitis), wound healing, follicular shedding phase, graft survival rate and hair growth parameters among SD patients. 3. Exploratory Objective To collect baseline clinical, physiological, biological and scalp microecological data from non-SD recipients after hair transplantation for reference purposes.

Interventions

• Other Intervention Name：Test shampoo + basic shampoo for scalp care
  The whole intervention is split into three sequential research stages: the pretreatment stage, the first test stage and the long-term follow-up stage. 1.14 days before enrollment up to the day of enrollment: Test shampoo A is used 3 times every week. If participants habitually wash hair every day, they shall use test shampoo A for 3 fixed weekly washes, and use basic shampoo for all other remaining shampooing times. 2.From the 7th study day to the 28th study day: Test shampoo B is used 3 times
• Other Basic scalp care shampoo
  Basic shampoo is adopted consistently during three research periods: pretreatment stage (14 days before enrollment to enrollment day), first test stage (7th study day to 28th study day), and follow-up stage (28th study day to the 9th trial month). The standard usage frequency is 3 times weekly; participants with daily hair-washing habit are permitted to use basic shampoo every single day.All participants must finish shampooing at home 12-36 hours prior to each study visit and keep the same pre-v

Primary outcome measures

• Scalp Seborrheic Dermatitis Assessment [Time frame: 14 days before enrollment, the day of enrollment, and 7 days, 28 days, 3 months, 6 months, and 9 months after enrollment.]
• Alopecia Grade Assessment [Time frame: 14 days before enrollment, and 28 days, 3 months, 6 months, and 9 months after enrollment.]
• Scalp sebum content measurement using Sebumeter [Time frame: 14 days before enrollment, the day of enrollment, 7 days, 28 days, 3 months, 6 months, and 9 months after enrollment]
• Scalp stratum corneum moisture content measurement using Dermalab [Time frame: 14 days before enrollment, the day of enrollment, 7 days, 28 days, 3 months, 6 months, and 9 months after enrollment]
• Transepidermal Water Loss (TEWL) measurement using Vapometer [Time frame: 14 days before enrollment, the day of enrollment, 7 days, 28 days, 3 months, 6 months and 9 months after enrollment]

Secondary outcome measures (8)

• Subjective Symptom Assessment Questionnaire (Not required for NSD population) [Time frame: 14 days before enrollment, the day of enrollment, and 7 days, 28 days, 3 months, 6 months, and 9 months after enrollment.]
• Product Usage Experience Feedback Questionnaire [Time frame: 9 months after enrollment]
• Product Use Compliance Questionnaire [Time frame: the day of enrollment, and 28 days, 3 months, 6 months, and 9 months after enrollment.]
• Wound Healing Assessment [Time frame: 7 days and 28 days after enrollment]
• Product Efficacy and Satisfaction Questionnaire [Time frame: the day of enrollment, and 28 days, 3 months, 6 months, and 9 months after enrollment.]
• Quality of Life Questionnaire (Exempt for NSD participants) [Time frame: 14 days before enrollment, the day of enrollment, and 7 days, 28 days, 3 months, 6 months, and 9 months after enrollment.]
• General Photography [Time frame: 14 days before enrollment, the day of enrollment, 7 days, 28 days, 3 months, 6 months and 9 months after enrollment]
• Dermoscopy imaging and image analysis [Time frame: Photography time points: 14 days before enrollment, the day of enrollment, 7 days, 28 days, 3 months, 6 months and 9 months after enrollment]

Eligibility criteria

Inclusion criteria

• Healthy Chinese male subjects aged between 18 and 55 years old;
• Diagnosed with androgenetic alopecia, with alopecia grade from Grade II to Grade VI per Hamilton-Norwood classification;
• Scheduled to receive hair transplantation; scalp condition is confirmed suitable for trial participation by dermatologist assessment after hair graft surgery;
• With or without mild-to-moderate scalp seborrheic dermatitis (SD score ranging from 0 to 9);
• No anti-dandruff shampoo used within the latest 14 days prior to enrollment;
• No hair dyeing, perming or hair styling cosmetic treatments in the past 30 days;
• Able to comply with all scheduled study visits;
• Possess normal communication and comprehension capacity;
• Agree to regular follow-up visits and complete related questionnaires on time;
• Fully understand trial procedures, volunteer to join the study and provide written informed consent.

Exclusion criteria

• Suffering from severe scalp seborrheic dermatitis;
• Received oral or topical antifungal drugs, glucocorticoids or other therapeutic medicines for seborrheic dermatitis within the preceding 30 days;
• Complicated with other scalp diseases (such as psoriasis), or with obvious infection or unhealed wounds on the target treatment area;
• Known hypersensitivity to ingredients including selenium disulfide, salicylic acid and related components;
• History of autoimmune diseases or severe organic diseases involving heart, brain, lung, liver, kidney and other vital organs;
• Past medical history of psychiatric or psychological disorders;
• Refuse to sign the written informed consent form;
• Currently enrolled in another interventional clinical trial;
• Diagnosed with alopecia areata, pseudopelade, cicatricial alopecia or other scalp and hair disorders;
• Have taken part in any other clinical trial within the prior 3 months;
• Judged as inappropriate for trial participation based on investigator's clinical assessment.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Allocation

Randomized

Model

Parallel assignment

Masking

Double blind

Primary purpose

Other

Study locations

China · 1 center

• Shanghai China-norm Quality Technical Service Co., Ltd., Shanghai, Shanghai 200072, Shangh — Shanghai

Identifiers

NCT: NCT07641686 · C24005074

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗