This multicenter, randomized, double-blind, placebo-controlled will be conducted at Yueyang Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine; Seventh People's Hospital, Shanghai University of Traditional Chinese Medicine; Jiading District Hospital of Traditional Chinese Medicine, Shanghai; and Baoshan District Hospital of Integrative Medicine, Shanghai; Huashan Hospital affiliated with Fudan University, Longhua Hospital affiliated with Shanghai University of Traditional Chinese Medicine, Shuguang Hospital affiliated with Shanghai University of Traditional Chinese Medicine, and the First Affiliated Hospital of the Naval Medical University. Approximately 376 participants will be recruited and randomly assigned to the Trilinolein cream or cream base group using block group randomization. The primary outcome will be time to relapse (number of days from the start of dosing to the time of relapse rating), and secondary outcomes will include eczema area and severity indices, overall investigator ratings, visual itch analog scores, dermatologic quality of life indices, overall improvement rates, and safety metrics. All data from the study will be analyzed using the SPSS 23.0 statistical package.
This randomized, double-blind, placebo-controlled trial will be conducted at Huashan Hospital affiliated with Fudan University, Longhua Hospital affiliated with Shanghai University of Traditional Chinese Medicine, Shuguang Hospital affiliated with Shanghai University of Traditional Chinese Medicine, the First Affiliated Hospital of Naval Military Medical University, Yueyang Hospital of Traditional Chinese Medicine and Western Combined Hospital affiliated with Shanghai University of Traditional Chinese Medicine, the Seventh People's Hospital affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai Jiading Hospital of Traditional Chinese Medicine, and the Combined Hospital of Traditional Chinese Medicine and Western Combined Hospital of Baoshan District of Shanghai. . The trial will start after ethical approval and protocol registration. Patient recruitment started in June 20234 and is expected to end in March 20257 . It is anticipated that 376 participants will be enrolled in the trial and randomly assigned in a 1:1 ratio to receive treatment with Trilinolein cream or cream base. The Standards for Reporting Interventions in Acupuncture Clinical Trials (STRICTA) and the SPIRIT Reporting Guidelines will be followed in the development of the standard protocol to clearly and transparently explain the relevant treatment processes. Potential subjects will be evaluated for eligibility to determine if inclusion and exclusion criteria are met. Eligible subjects will voluntarily provide written informed consent prior to randomization. The study will have a double-blind design.Trilinolein cream and cream base will be supplied by the manufacturer, registered, and then distributed by the designated investigator at the time of the visit. Unused cream will be collected and counted after each distribution except for the first distribution.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
376
Apply trilinolein cream evenly to the affected skin twice daily. The dosage is calculated using Finger Tip Units (FTU) and should not exceed a maximum of 30 grams per day.
Apply cream base evenly to the affected skin twice daily. The dosage is calculated using Finger Tip Units (FTU) and should not exceed a maximum of 30 grams per day.
Recurrence time
number of days from start of dosing to time of relapse assessment
Time frame: Assessed at screening period -14 ~ -1 days (V1), treatment period day 1 (V2), week 4 ± 3 days (V3), week 8 ± 3 days (V4), week 12 ± 3 days (V5) and follow-up period week 16 ± 3 days (V6)
Eczema Area and Severity Index(EASI)
One of the commonly used assessment indicators for atopic dermatitis
Time frame: Assessed at screening period -14 ~ -1 days (V1), treatment period day 1 (V2), week 4 ± 3 days (V3), week 8 ± 3 days (V4), week 12 ± 3 days (V5) and follow-up period week 16 ± 3 days (V6)
Investigator's Global Assessment(IGA)
One of the commonly used assessment indicators for atopic dermatitis
Time frame: Assessed at screening period -14 ~ -1 days (V1), treatment period day 1 (V2), week 4 ± 3 days (V3), week 8 ± 3 days (V4), week 12 ± 3 days (V5) and follow-up period week 16 ± 3 days (V6)
Visual Analogue Scale(VAS)
One of the commonly used assessment indicators for atopic dermatitis
Time frame: Assessed at screening period -14 ~ -1 days (V1), treatment period day 1 (V2), week 4 ± 3 days (V3), week 8 ± 3 days (V4), week 12 ± 3 days (V5) and follow-up period week 16 ± 3 days (V6)
Dermatology Life Quality Index(DLQI)
One of the commonly used assessment indicators for atopic dermatitis
Time frame: Assessed at screening period -14 ~ -1 days (V1), treatment period day 1 (V2), week 4 ± 3 days (V3), week 8 ± 3 days (V4), week 12 ± 3 days (V5) and follow-up period week 16 ± 3 days (V6)
Overall effective rate
Difference between pre- and post-treatment EASI scores/baseline EASI score × 100%, where ≥90% is considered cured, 60% \~ 89% is considered effective, 20% \~ 59% is considered improved, and \<20% is considered ineffective, and the total of the cured rate and the effective rate is the overall effective rate.
Time frame: through study completion, an average of 16 weeks
Total serum IgE
Peripheral blood samples are collected from patients by sub-centers and uniformly sent for testing by the main center.
Time frame: Assessed at screening period -14 ~ -1 days (V1), treatment period week 4 ± 3 days (V3), week 12 ± 3 days (V5)
Trans Epidermal Water Loss(TEWL)
Indicators for objective evaluation of treatment
Time frame: Assessed at screening period -14 ~ -1 days (V1), treatment period day 1 (V2), week 4 ± 3 days (V3), week 8 ± 3 days (V4), week 12 ± 3 days (V5) and follow-up period week 16 ± 3 days (V6)
Skin flora test
Detecting changes in flora species and diversity
Time frame: Assessed at treatment period day 1 (V2) and follow-up period week 16 ± 3 days (V6)
Safety evaluation indicators
Record adverse events in detail at any time, and record any adverse reactions such as hyperpigmentation, capillary dilatation and skin atrophy at the site of application during the period of drug administration
Time frame: up to 12 weeks
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