1.Appropriate Injection Intervals of Dupilumab in Patients With Adult Atopic Dermatitis: A Step Toward Developing Guidelines for Daily Practice
Heeyeon KIM ; Sejin OH ; Hyungrye NOH ; Byeonghyun JOO ; Joonho SHIM ; Jihye PARK ; Dongyoun LEE ; Jong Hee LEE
Annals of Dermatology 2025;37(1):39-45
Background:
There is a growing demand for extending dosing intervals of dupilumab injections in patients with atopic dermatitis (AD) due to treatment burden and side effects. However, studies on successful dose reduction in real-world settings are lacking.
Objective:
To assess the efficacy of a patient-centered dupilumab tapering regimen and to propose guidelines for target patients, appropriate intervals, and timing for tapering.
Methods:
This single-center retrospective study included moderate to severe adult AD patients who underwent at least 16 weeks of dupilumab treatment. Interval prolongation was considered in controlled patients assessed by Eczema Area and Severity Index (EASI) score and serum inflammatory markers after at least 40 weeks of treatment with a standard regimen. Logistic regression model with generalized estimating equations was used to compare repetitive measurements over time between the two groups.
Results:
A total of 52 patients were included with 11 patients extending intervals to 3–4 weeks without flare-ups. The mean duration of dupilumab treatment before tapering was 53.27 weeks. The tapering group exhibited significantly lower body mass index. All patients of the tapering group showed EASI scores under 4 and immunoglobulin E (IgE) levels under 1,000 IU/mL at week 40. EASI scores and IgE levels remained consistently low after dose reduction, with a mean follow-up time of 14.36 months.
Conclusion
Patients with extended dosing intervals demonstrated sustained effectiveness. Dose tapering might be a valuable option for non-obese patients with positive clinical response characterized by an EASI score under 4 and IgE levels under 1,000 at week 40.
2.Bleomycin Intralesional Injection in Keloids and Hypertrophic Scars Unresponsive to Previous Corticosteroid Intralesional Injection and/or Laser Treatment:A Case Series and Review of the Literature
Hyungrye NOH ; Heeyeon KIM ; Joonho SHIM ; Se Jin OH ; Jihye PARK ; Dongyoun LEE ; Jong Hee LEE
Korean Journal of Dermatology 2023;61(7):437-442
The treatment of pathological scars, such as keloids and hypertrophic scars, can be challenging for dermatologists. The first-line treatment is intralesional corticosteroid injection, especially when patients complain of pain or discomfort. Laser treatment can also be used in patients with keloids and hypertrophic scars. However, even after multiple sessions of intralesional corticosteroid injections and laser treatment, desirable outcomes may not be achieved, and recurrence is common. Recent studies on the efficacy of intralesional bleomycin injection (BLMILI) in treating keloids and hypertrophic scars have suggested that a significant improvement is observed after BLMILI. However, there is limited research on the effectiveness of BLMILI for patients who do not respond to other treatments, such as intralesional corticosteroid injection or laser treatment. Here, we report four cases of BLMILI in keloids and hypertrophic scars that were unresponsive to previous intralesional corticosteroid injection and/or laser treatment.
3.Comparison of CT Volumetry and RECIST to Predict the Treatment Response and Overall Survival in Gastric Cancer Liver Metastases
Sung Hyun YU ; Seung Joon CHOI ; HeeYeon NOH ; In seon LEE ; So Hyun PARK ; Se Jong KIM
Journal of the Korean Radiological Society 2021;82(4):876-888
Purpose:
The aim of this study was to compare the diameter and volume of liver metastases on CT images in relation to overall survival and tumor response in patients with gastric cancer liver metastases (GCLM) treated with chemotherapy.
Materials and Methods:
We recruited 43 patients with GCLM who underwent chemotherapy as a first-line treatment. We performed a three-dimensional quantification of the metastases for each patient. An independent survival analysis using the Response Evaluation Criteria in Solid Tumors (RECIST) was performed and compared to volumetric measurements. Overall survival was evaluated using Kaplan-Meier analysis and compared using Cox proportional hazard ratios following univariate analyses.
Results:
When patients were classified as responders or non-responders based on volumetric criteria, the median overall survival was 23.6 months [95% confidence interval (CI), 8.63–38.57] and 7.6 months (95% CI, 3.78–11.42), respectively (p = 0.039). The volumetric analysis and RECIST of the non-progressing and progressing groups showed similar results based on the Kaplan-Meier method (p = 0.006) and the Cox proportional hazard model (p = 0.008).
Conclusion
Volumetric assessment of liver metastases could be an alternative predictor of overall survival for patients with GCLM treated with chemotherapy.
4.Comparison of CT Volumetry and RECIST to Predict the Treatment Response and Overall Survival in Gastric Cancer Liver Metastases
Sung Hyun YU ; Seung Joon CHOI ; HeeYeon NOH ; In seon LEE ; So Hyun PARK ; Se Jong KIM
Journal of the Korean Radiological Society 2021;82(4):876-888
Purpose:
The aim of this study was to compare the diameter and volume of liver metastases on CT images in relation to overall survival and tumor response in patients with gastric cancer liver metastases (GCLM) treated with chemotherapy.
Materials and Methods:
We recruited 43 patients with GCLM who underwent chemotherapy as a first-line treatment. We performed a three-dimensional quantification of the metastases for each patient. An independent survival analysis using the Response Evaluation Criteria in Solid Tumors (RECIST) was performed and compared to volumetric measurements. Overall survival was evaluated using Kaplan-Meier analysis and compared using Cox proportional hazard ratios following univariate analyses.
Results:
When patients were classified as responders or non-responders based on volumetric criteria, the median overall survival was 23.6 months [95% confidence interval (CI), 8.63–38.57] and 7.6 months (95% CI, 3.78–11.42), respectively (p = 0.039). The volumetric analysis and RECIST of the non-progressing and progressing groups showed similar results based on the Kaplan-Meier method (p = 0.006) and the Cox proportional hazard model (p = 0.008).
Conclusion
Volumetric assessment of liver metastases could be an alternative predictor of overall survival for patients with GCLM treated with chemotherapy.

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