Sublingual immunotherapy with Dermatophagoides farinae drops for pediatric atopic dermatitis

Chaodi Huang, Jianping Tang
International Journal of Dermatology 2021 November 18

BACKGROUND: We evaluated the clinical effect and safety of sublingual immunotherapy (SLIT) with Dermatophagoides farinae drops for pediatric atopic dermatitis (AD).

METHODS: We enrolled children aged 4-13 years with AD and grouped them into the SLIT and control groups using the random number table method. We subdivided each group based on treatment duration (1-, 2-, and 3-year subgroups). The SLIT group received Dermatophagoides farinae drops, and both groups received conventional treatment (topical glucocorticoids, skin moisturizers, oral antihistamines, and allergen avoidance). Effective rate and effect were compared between groups after 1, 2, and 3 years of treatment.

RESULTS: We assessed 309 SLIT cases (male, 192; age, 4-13 years) and 131 controls (male, 79; age 4-13 years). The effective rate and curative effect after 2 and 3 years of treatment were significantly different between the groups (P < 0.05). The effect and effective rates between corresponding SLIT and control group treatment duration subgroups were significantly different (P < 0.05). SLIT group duration subgroups showed significant differences in the effect and effective rates (P < 0.05). Posttreatment Scoring Atopic Dermatitis (SCORAD) scores in the SLIT group duration subgroups were significantly lower than those of the corresponding control subgroups (P < 0.05). Upon follow-up at 1 year post treatment completion, the SLIT group's SCORAD score was significantly lower than its baseline score and the control group's follow-up score (P < 0.05).

CONCLUSION: SLIT with Dermatophagoides farinae drops for pediatric AD is safe and effective; effectiveness is maintained after treatment cessation, and prolonged treatment improves efficacy.

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