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Hair growth trial

Hair thinning improvement effect evaluation test of hair restorer - Hair growth trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000045196
Enrollment
40
Registered
2021-08-19
Start date
2021-08-19
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy adult

Interventions

Subjects use the test product twice daily for 24 weeks.

Sponsors

Yamada Bee Company, Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: [1]Healthy Japanese males and females aged between 30 and 60 at the time of informed consent [2]Subjects with feeling of thinning hair and hair loss [3]Subjects who don't have full head of gray hair or are dyeing gray hair [4]Subjects who can agree to cut hair locally approximately 1.0 cm x 1.0 cm near the crown on each visit day [5]Subjects who can agree to keep the conditions such as hair conditioning and hair dyeing constant on each visit day [6]Subjects who can obtain written consent at their own discretion before the study begins

Exclusion criteria

Exclusion criteria: [1]Subjects with pathological hair loss such as alopecia areata [2]Subjects with scalp diseases other than hair loss (eg, head eczema, seborrheic eczema, psoriasis, tinea capitis, and other scalp infections) [3]Subject with reduced or abnormal thyroid function [4]Subjects with photosensitivity disorder [5]Subjects receiving "hormone replacement therapy" or taking oral contraceptives within one year [6]Subjects who are pregnant or lactating, or who intend to become pregnant [7]Subject with atopic dermatitis [8]Subjects who habitually apply or take external preparations, oral medicines, supplements, etc. that may affect the condition of the head [9]Subjects with a history of hypersensitivity (allergies) to hair growth agents, hair restorer, cosmetics (shampoo, etc.), or hypersensitivity to other medicines. [10]Subjects who have been treated with radiation therapy to the head or cancer chemotherapy within the last 6 months, or who will be treated within the next 2 months after the end of the study [11]Subjects who regularly use wigs during the study period, subjects who have undergone hair transplantation or hair growth, or subjects who are scheduled during the study period [12]Subjects who have been treated with pharmaceutical hair growth agents (such as finasteride, minoxidil, or carpronium chloride-containing preparations) within the past 6 months [13]Subjects who have used existing hair growth agents and hair restorer within the past 2 months, regardless of whether they are pharmaceutical products or quasi-drugs. [14]Subjects currently using medical medications known to cause trichotillomania or hirsutism (eg, phenytoin for epilepsy) [15]Subjects working for cosmetics companies and pharmaceutical companies [16]Subjects judged to be ineligible for this study

Design outcomes

Primary

MeasureTime frame
Photo Trichogram (Growth rate, Hair diameter, Anagen hair percentage,Hair number)

Secondary

MeasureTime frame
Stratum corneum water content of the scalp,Questionnaire survey,Head photography (front side of head, back side of head),Adverse event investigation

Countries

Japan

Contacts

Public ContactMasaaki Yamamura

Nikoderm Research Inc. Evaluation Division

myamamura@nikkolgroup.com06-6125-3501

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026