The Association of Bullous Pemphigoid With Dipeptidyl-peptidase 4 Inhibitors

The investigators conducted a prospective study which included all patients diagnosed with biopsy-proven BP in the Dermatology Department of Attikon hospital between April 1, 2009 and December 31, 2019. 113 consecutive patients with BP were identified. The investigators included the patients with type 2 diabetes and investigated the percentage of patients who were under treatment with DPP4-is. The specific DPP4-i prescribed was also documented.Medical information including patients' age, sex, other comorbidities and concomitant medications were also recorded. Furthermore, the investigators evaluated the effect of different types of treatment (topical steroids, systemic corticosteroids, immunosuppressive agents) on bullous pemphigoid.