Bullous pemphigoid and dipeptidyl peptidase-4 inhibitors: evaluation of clinical course and treatment response

Author:

Tzanani Ido12ORCID,Tzachy-Suissa Inbar2,Barzilai Aviv123,Pavlotsky Felix12,Lyakhovitsky Anna12,Baum Sharon12

Affiliation:

1. Department of Dermatology, Sheba Medical Center , Tel Hashomer , Israel

2. Sackler Faculty of Medicine, Tel Aviv University , Israel

3. Institute of Pathology, Sheba Medical Center , Tel Hashomer , Israel

Abstract

Abstract Background Dipeptidyl peptidase-4 inhibitors (DPP4is), drugs used to treat type 2 diabetes mellitus (DM2), show a significant association with bullous pemphigoid (BP) development. Objectives To evaluate the clinical course and development of BP among patients with DM2 treated with DPP4is. Methods This retrospective cohort study included all the patients with BP and comorbid DM2 who visited Sheba Medical Center during 2015−2020. Results Among 338 patients with BP, 153 were included in our study. In 92 patients, BP diagnosis was attributed to the use of DPP4is. The patients with DPP4i-associated BP had fewer neurological and cardiovascular comorbidities and higher blistered body surface area (BSA) at first presentation, with noticeable upper and lower limb involvement. These patients were younger and more responsive to treatment, with a greater reduction in their BSA score after 2 months of treatment. Conclusions The clinical features of patients with BP treated with DPP4is were initially more severe; however, during follow-up, a marked clinical improvement was noticed, especially among patients who had ceased the drug. Therefore, although withdrawal of the drug may not impose disease remission, it can alleviate the disease course and avert the need for treatment escalation.

Publisher

Oxford University Press (OUP)

Subject

Dermatology

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