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Abstract Janus kinase (JAK) inhibitors are efficacious for atopic dermatitis (AD). However, some patients receiving JAK inhibitors develop acne, especially younger patients, or herpes zoster, especially elderly patients, and desire to switch to dupilumab. We experienced two patients with immediate exacerbation of AD after switching from upadacitinib to dupilumab, and herein report these cases. This phenomenon is attributed to the difference in elimination half‐life of the two drugs and a slower onset of efficacy of dupilumab than upadacitinib. When switching from a JAK inhibitor to dupilumab, short‐term concomitant use, intensifying topical treatment, and/or rescue with cyclosporine should be considered.

Abstract Dupilumab was approved for treating adult patients with atopic dermatitis (AD) refractory to topical therapy in Japan in April 2018, and self‐injection of dupilumab has been available since May 2019. Subcutaneous self‐injection of medication has benefits for patients and the healthcare system. However, anxiety about self‐injection, lack of confidence, and the complicated procedure could prevent initiating self‐injection. In this study, we assessed the experience of AD patients treated with dupilumab before and after introducing self‐injection, utilizing the Self‐Injection Assessment Questionnaire (SIAQ). Adult AD patients who received dupilumab by self‐injection and had been treated for more than 3 months after initiating self‐injection in our hospital from March 1, 2020, to June 19, 2021, were included in this study. Patients rated their perceptions about self‐injections using the SIAQ before the first self‐injection and 3 months after initiating self‐injection. Data were collected retrospectively from their charts. Data on 36 patients were analyzed. The mean age was 34.1 ± 11.5 years. Twenty patients used a prefilled auto‐injector, and the others used a prefilled syringe. Scores on self‐confidence and satisfaction with self‐injection significantly improved after introducing self‐injection. Feelings about injections improved in patients over 40 years and in those who felt anxious about self‐injection. A strong correlation in scores between satisfaction with self‐injection and the ease of use was observed. The results were not affected by clinical severity, gender, or device. Our results could encourage patients who dither to introduce self‐injection of dupilumab due to anxiety and/or lack of self‐confidence about self‐injection to initiate self‐injection.

Abstract Dupilumab demonstrated high efficacy and tolerable safety profiles in moderate‐to‐severe atopic dermatitis (AD) patients in clinical trials; however, certain patients suffer from facial redness, while obtaining good responses on the trunk and limbs to dupilumab in the real‐world setting. In our study, we investigated the effectiveness of tacrolimus ointment on facial lesions refractory to topical corticosteroid in patients with AD receiving dupilumab. This study included Japanese adult patients with moderate‐to‐severe AD who developed facial lesions during dupilumab treatment and whose facial lesions became refractory to topical corticosteroid treatment. Nine patients (one female, eight males) were included in this study. One patient newly developed facial erythema after initiating dupilumab. Facial lesions were refractory to dupilumab treatment in the other patients. Five of the nine patients showed improvement in EASI scores of head and neck by switching the facial treatment from topical corticosteroid to tacrolimus ointment. The patient who developed newly facial erythema showed improvement after applying tacrolimus ointment. Although we explored the predictors of effectiveness of tacrolimus ointment in patients with facial lesions during dupilumab treatment, no significant differences were observed in age, duration of dupilumab prior treatment, or prior head and neck EASI between patients who showed improvement after changing to tacrolimus and those who did not. Tacrolimus ointment is worth trying if facial lesions are refractory to topical corticosteroid.

This case report describes a 44‐year‐old male patient with atopic dermatitis who developed malignant lymphoma (diffuse large B‐cell lymphoma) during the dupilumab treatment.

Dupilumab was approved for treating adult patients with atopic dermatitis (AD) refractory to topical therapy in Japan in April 2018, and self‐injection of dupilumab has been available since May 2019. Subcutaneous self‐injection of medication has benefits for patients and the healthcare system. However, anxiety about self‐injection, lack of confidence, and the complicated procedure could prevent initiating self‐injection. In this study, we assessed the experience of AD patients treated with dupilumab before and after introducing self‐injection, utilizing the Self‐Injection Assessment Questionnaire (SIAQ). Adult AD patients who received dupilumab by self‐injection and had been treated for more than 3 months after initiating self‐injection in our hospital from March 1, 2020, to June 19, 2021, were included in this study. Patients rated their perceptions about self‐injections using the SIAQ before the first self‐injection and 3 months after initiating self‐injection. Data were collected retrospectively from their charts. Data on 36 patients were analyzed. The mean age was 34.1 ± 11.5 years. Twenty patients used a prefilled auto‐injector, and the others used a prefilled syringe. Scores on self‐confidence and satisfaction with self‐injection significantly improved after introducing self‐injection. Feelings about injections improved in patients over 40 years and in those who felt anxious about self‐injection. A strong correlation in scores between satisfaction with self‐injection and the ease of use was observed. The results were not affected by clinical severity, gender, or device. Our results could encourage patients who dither to introduce self‐injection of dupilumab due to anxiety and/or lack of self‐confidence about self‐injection to initiate self‐injection. [ABSTRACT FROM AUTHOR]

Janus kinase (JAK) inhibitors are efficacious for atopic dermatitis (AD). However, some patients receiving JAK inhibitors develop acne, especially younger patients, or herpes zoster, especially elderly patients, and desire to switch to dupilumab. We experienced two patients with immediate exacerbation of AD after switching from upadacitinib to dupilumab, and herein report these cases. This phenomenon is attributed to the difference in elimination half‐life of the two drugs and a slower onset of efficacy of dupilumab than upadacitinib. When switching from a JAK inhibitor to dupilumab, short‐term concomitant use, intensifying topical treatment, and/or rescue with cyclosporine should be considered. [ABSTRACT FROM AUTHOR]

Dupilumab demonstrated high efficacy and tolerable safety profiles in moderate‐to‐severe atopic dermatitis (AD) patients in clinical trials; however, certain patients suffer from facial redness, while obtaining good responses on the trunk and limbs to dupilumab in the real‐world setting. In our study, we investigated the effectiveness of tacrolimus ointment on facial lesions refractory to topical corticosteroid in patients with AD receiving dupilumab. This study included Japanese adult patients with moderate‐to‐severe AD who developed facial lesions during dupilumab treatment and whose facial lesions became refractory to topical corticosteroid treatment. Nine patients (one female, eight males) were included in this study. One patient newly developed facial erythema after initiating dupilumab. Facial lesions were refractory to dupilumab treatment in the other patients. Five of the nine patients showed improvement in EASI scores of head and neck by switching the facial treatment from topical corticosteroid to tacrolimus ointment. The patient who developed newly facial erythema showed improvement after applying tacrolimus ointment. Although we explored the predictors of effectiveness of tacrolimus ointment in patients with facial lesions during dupilumab treatment, no significant differences were observed in age, duration of dupilumab prior treatment, or prior head and neck EASI between patients who showed improvement after changing to tacrolimus and those who did not. Tacrolimus ointment is worth trying if facial lesions are refractory to topical corticosteroid. [ABSTRACT FROM AUTHOR]

This case report describes a 44‐year‐old male patient with atopic dermatitis who developed malignant lymphoma (diffuse large B‐cell lymphoma) during the dupilumab treatment. [ABSTRACT FROM AUTHOR]