[EFFECTS OF DUPILUMAB ON PERENNIAL ALLERGIC RHINITIS IN ATOPIC DERMATITIS PATIENTS]

Dupilumab, an anti-IL (Interleukin) -4 receptorα mAb, inhibits IL-4/IL-13 signaling and is indicated for the treatment of inadequately controlled AD, asthma and CRSwNP because IL-4/IL-13 signaling is a key driver of type2/Th2 immune diseases (atopic/allergic diseases). As well as the above diseases, a therapeutic effect of dupilumab on PAR can be expected. We investigated the effect of dupilumab on PAR in severe AD patients with comorbid PAR.Prospective observational study. 21 severe AD patients with PAR who started dupilumab were enrolled and we devided them into 2 groups: more than moderate group and less than moderate group. We investigated subjective symptoms, QOL scores, face scale, findings of nasal cavity and laboratory findings before start of therapy and 12 months later.In more than moderate group, significant improvements were observed in subjective symptoms (except a part), QOL scores (except a part), face scale and findings of nasal cavity. On the other hand, in less than moderate group, no improvement was observed in all items. Subjective symptom assessments were estimated lowlier than objective finding assessments.Dupilumab has a therapeutic effect on severe PAR in severe AD patients.