JRCT ID: jRCT2031250479
Registered date:11/11/2025
A phase III of KTZ-S 2% for Seborrhoeic dermatitis of the scalp
Basic Information
| Recruitment status | Recruiting |
|---|---|
| Health condition(s) or Problem(s) studied | Seborrhoeic dermatitis of the scalp |
| Date of first enrollment | 08/12/2025 |
| Target sample size | 160 |
| Countries of recruitment | |
| Study type | Interventional |
| Intervention(s) | KTZ-S 2% once daily for 4 weeks placebo once daily for 4 weeks |
Outcome(s)
| Primary Outcome | TSS change for the entire scalp 4 weeks after the start of study treatment |
|---|---|
| Secondary Outcome | (1) Percentage of subjects achieving negative Malassezia fungi at each evaluation time point (percentage of subjects with fewer than 10 Malassezia fungi per field of view under direct microscopic examination at 400x magnification) (2) Change in erythema score, change in scaling score (entire scalp and lesion site), change in pruritus score at each evaluation time point (3) Change in lesion extent score at each evaluation time point |
Key inclusion & exclusion criteria
| Age minimum | >= 18age old |
|---|---|
| Age maximum | Not applicable |
| Gender | Both |
| Include criteria | Patients with seborrhoeic dermatitis of the scalp over 18 years old Malassezia fungi were detected of the lesions |
| Exclude criteria | Patients complicated with diseases considered inappropriate for participation in clinical trials such as serious cardiac / hepatic / renal / pulmonary / hematologic disease Patients with atopic dermatitis, psoriasis vulgaris, contact dermatitis, and inflammatory skin diseases other than seborrhoeic dermatitis of the scalp |
Related Information
| Primary Sponsor | Takahashi Hiromasa |
|---|---|
| Secondary Sponsor | |
| Source(s) of Monetary Support | |
| Secondary ID(s) |
Contact
| Public contact | |
| Name | Shigeto Mashimo |
| Address | 1-2-13, Nihonbashi Ningyocho, Chuo-ku, Tokyo Tokyo Japan 103-0013 |
| Telephone | +81-3-5244-9343 |
| mashimo@serenpharma.com | |
| Affiliation | Seren Pharmaceuticals Inc. |
| Scientific contact | |
| Name | Hiromasa Takahashi |
| Address | 1-2-13, Nihonbashi Ningyocho, Chuo-ku, Tokyo Tokyo Japan 103-0013 |
| Telephone | +81-3-5244-9343 |
| takahashi@serenpharma.com | |
| Affiliation | Seren Pharmaceuticals Inc. |