Seborrheic Dermatitis

This study will assess the safety and efficacy of Roflumilast foam 0.3% (ZORYVE®) versus vehicle applied once a day for 8 weeks by trial participants with seborrheic dermatitis.

This study is a randomized controlled trial comparing the effectiveness of oral itraconazole pulse therapy versus topical 2% ketoconazole shampoo in treating moderate to severe scalp seborrheic dermatitis (SD). SD is a chronic inflammatory skin condition associated with Malassezia yeast, characterized by scaling, itching, and redness, significantly affecting quality of life. A total of 80 participants aged (14-70 years) with moderate to severe scalp SD will be enrolled and divided into two groups. Group A will receive oral itraconazole (pulse regimen over 6 months), while Group B will use ketoconazole shampoo (initial daily use followed by twice weekly application). Outcomes will be assessed using the Scalp Seborrheic Dermatitis (SSD) score, Clinical Global Impression (CGI) scale, and Patient Global Impression (PGI) scale. The study aims to compare: Treatment effectiveness Frequency of disease relapses Patient satisfaction Side-effect profiles Data will be analyzed using statistical tests (t-tests and chi-square), with significance set at p \< 0.05. The hypothesis is that oral itraconazole pulse therapy is more effective than topical ketoconazole in controlling symptoms and preventing relapses in scalp SD.

This is a multicenter, randomized, double-blind, placebo-controlled, parallel-group Phase Ib clinical trial conducted in adult patients with mild to moderate seborrheic dermatitis (IGA-SD score of 2-3 points). The study aims to evaluate the safety, tolerability, and steady-state pharmacokinetic (PK) profiles of three concentrations (0.5%, 0.75%, and 1.0%) of ZYG24002 Lotion following continuous topical application once daily (QD) or twice daily (BID) for 28 days, and to conduct a preliminary exploration of the drug's efficacy.

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.

This study aims to develop a standardized workflow for sebum sampling and metabolomics/lipidomics analysis using Sebutape. A total of 200 participants will be recruited, including healthy individuals, patients with skin diseases, individuals undergoing dermatological treatments or using skincare products, and a subset of healthy participants receiving short-term topical antibiotic intervention. The study will investigate sebum composition, skin microbiome profiles, and their interactions under different conditions to explore potential biomarkers and clinical applications.

The study is conducted to determine if image-based computer grading can of acne, melasma, rosacea and seborrheic dermatitis correlate well to expert based clinical severity grading.