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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03636763
Other study ID # 2017-29
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date September 2018
Est. completion date December 2019

Study information

Verified date August 2018
Source Assistance Publique Hopitaux De Marseille
Contact Michael Joseph BENZAQUEN
Phone +33 491964962
Email MICHAEL.BENZAQUEN@ap-hm.fr
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Bullous pemphigoid (BP) is the most common autoimmune bullous dermatosis. It mainly affects the elderly, and its cutaneous manifestations are extremely varied. Since the publication of the first case of PB associated with sulfasalazine in 1970, several drugs have been reported for their potential link with the development of PB. Recently, cases of PB associated with dipeptidyl peptidase-IV (DPP4) inhibitors, also known as gliptins, have been reported. DPP4 inhibitors are oral antidiabetic agents prescribed to patients with type 2 diabetes, as monotherapy, in combination with other oral antidiabetic agents or with insulin.

In recent years, an increasing number of cases have been published, describing the potential role of gliptins in PB induction. All these clinical cases and pharmacovigilance analyzes tend to show an increased risk of developing BP in case of gliptin exposure.

The main objective is to evaluate the risk of developing a PB under DPP4 inhibitor treatment, comparing cases of diabetic patients with BP, to matched diabetic controls for sex and age, from French departments. Endocrinology in a retrospective study from 1 January 2014 to 31 July 2016.

The study will be conducted using databases of clinical and histological records. The investigators will perform a retrospective 1: 2 case-control study comparing cases with type 2 diabetes and BP to matched diabetic controls for sex and age, randomly drawn from French endocrinology departments (Marseille La Conception ) and Switzerland (Bern), between January 1, 2014 and July 31, 2016. the investigators will compare gliptin exposure in the case-control group versus the control group, adjusting for potential confounding bias using models. logistic regression.


Description:

Bullous pemphigoid (BP) is the most common autoimmune bullous dermatosis. It mainly affects the elderly, and its cutaneous manifestations are extremely varied. Since the publication of the first case of PB associated with sulfasalazine in 1970, several drugs (spironolactone, furosemide, chloroquine, beta-blockers and various antibiotics) have been reported for their potential link with the development of PB. Recently, cases of PB associated with dipeptidyl peptidase-IV (DPP4) inhibitors, also known as gliptins, have been reported. DPP4 inhibitors are oral antidiabetic agents prescribed to patients with type 2 diabetes, as monotherapy, in combination with other oral antidiabetic agents or with insulin.

Problem raised:

In recent years, an increasing number of cases have been published, describing the potential role of gliptins in PB induction. All these clinical cases and pharmacovigilance analyzes tend to show an increased risk of developing BP in case of gliptin exposure, but this hypothesis has not yet been confirmed by a quality controlled study.

Goal:

The main objective is to evaluate the risk of developing a PB under DPP4 inhibitor treatment, comparing cases of diabetic patients with BP, to matched diabetic controls for sex and age, from French departments. Endocrinology (Marseille La Conception) and Dermatologie (Marseille North, Marseille La Timone) and Swiss (Bern), in a retrospective study from 1 January 2014 to 31 July 2016.

Material and methods:

The study will be conducted in three university departments of Dermatology (Marseille North, Marseille La Timone, Bern), using databases of clinical and histological records. The investigators will perform a retrospective 1: 2 case-control study comparing cases with type 2 diabetes and BP to matched diabetic controls for sex and age, randomly drawn from French endocrinology departments (Marseille La Conception ) and Switzerland (Bern), between January 1, 2014 and July 31, 2016. The investigators will compare gliptin exposure in the case-control group versus the control group, adjusting for potential confounding bias using models. logistic regression.

Criteria for inclusion:

- Case: Patients from three university departments of Dermatology (Marseille North, Marseille La Timone, Bern) with type 2 diabetes, and a diagnosis of PB diagnosed for the first time between January 1, 2014 and July 31, 2016. The diagnosis of PB is based on compatible clinical presentation, compatible histology, positive direct immunofluorescence (IFD), and in some cases positive indirect immunofluorescence (IFI) and / or the presence of autoantibodies (BP180 and / or BP230) by ELISA.

- Witnesses: Patients from two university departments of Endocrinology (Marseille La Conception and Bern) with type 2 diabetes, and matched 1: 2 to cases for sex and age.

Exclusion criteria:

- Case: Patients with another bullous dermatosis, not meeting the inclusion criteria. Patients biopsied before consultation in University Hospital, or patients seen in private dermatology practices.

- Witnesses: Patients suffering at the time of inclusion of a chronic dermatosis, in particular of a bullous dermatosis.


Recruitment information / eligibility

Status Recruiting
Enrollment 183
Est. completion date December 2019
Est. primary completion date March 2019
Accepts healthy volunteers No
Gender All
Age group N/A and older
Eligibility Inclusion Criteria:

Case: Patients from three university departments of Dermatology (Marseille North, Marseille La Timone, Bern) with type 2 diabetes, and a diagnosis of PB diagnosed for the first time between January 1, 2014 and July 31, 2016. The diagnosis of PB is based on compatible clinical presentation, compatible histology, positive direct immunofluorescence (IFD), and in some cases positive indirect immunofluorescence (IFI) and / or the presence of autoantibodies (BP180 and / or BP230) by ELISA.

- Witnesses: Patients from two university departments of Endocrinology (Marseille La Conception and Bern) with type 2 diabetes, and matched 1: 2 to cases for sex and age.

Exclusion Criteria:

Case: Patients with another bullous dermatosis, not meeting the inclusion criteria. Patients biopsied before consultation in University Hospital, or patients seen in private dermatology practices.

Witnesses: Patients suffering at the time of inclusion of a chronic dermatosis, in particular of a bullous dermatosis.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
data report
the information "gliptin exposure" will be reported

Locations

Country Name City State
France Assistance Publique Des Hopitaux de Marseille Marseille Paca

Sponsors (1)

Lead Sponsor Collaborator
Assistance Publique Hopitaux De Marseille

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary numbers of patients exposed to gliptin numbers of patients exposed to gliptin developing a Bullous pemphigoid 3 years
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