Evidence map›Paper›PMID 33101737›Full record

ArticleCase reports in endocrinology2020

Clinical Features and Outcomes of Dipeptidyl Peptidase-4 Inhibitor-Associated Bullous Pemphigoid (DPP4i-Associated BP) in Thai Patients.

Yotsapon Thewjitcharoen, Ekgaluck Wanothayaroj, Chattip Thammawiwat, Sriurai Porramatikul, Chuleekorn Vorayingyong, Soontaree Nakasatien, Sirinate Krittiyawong, Kumutnart Chanprapaph, Thep Himathongkam

Open access · goldAbstract readCase Reports
In one paragraph

Article in Case reports in endocrinology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.7field-weighted citation impact, top 29% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Yotsapon ThewjitcharoenDiabetes and Thyroid Center, Theptarin Hospital, Bangkok, Thailand.ORCID https://orcid.org/0000-0002-2317-4041
Ekgaluck WanothayarojDiabetes and Thyroid Center, Theptarin Hospital, Bangkok, Thailand.
Chattip ThammawiwatDiabetes and Thyroid Center, Theptarin Hospital, Bangkok, Thailand.
Sriurai PorramatikulDiabetes and Thyroid Center, Theptarin Hospital, Bangkok, Thailand.
Chuleekorn VorayingyongDepartment of Dermatology, Theptarin Hospital, Bangkok, Thailand.
Soontaree NakasatienDiabetes and Thyroid Center, Theptarin Hospital, Bangkok, Thailand.
Sirinate KrittiyawongDiabetes and Thyroid Center, Theptarin Hospital, Bangkok, Thailand.
Kumutnart ChanprapaphDivision of Dermatology, Department of Medicine, Ramathibodi Hospital, Bangkok, Thailand.
Thep HimathongkamDiabetes and Thyroid Center, Theptarin Hospital, Bangkok, Thailand.
Bangkok Hospital · THRamathibodi Hospital · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The use of dipeptidyl peptidase-4 inhibitors (DPP4i) appears to be associated with a small but significantly elevated risk of bullous pemphigoid (BP). Although the pathogenic mechanism of DPP4i-associated BP remains unclear, this adverse event is reported with multiple gliptins, suggesting a class effect. However, previous studies from various countries showed that vildagliptin had been implicated in most cases. The aim of this study was to illustrate a case series of DPP4i-associated BP in Thai patients. We conducted a retrospective study from consecutive cases of BP in people with type 2 diabetes mellitus (T2DM) from January 2008, the year in which the first DPP4i was introduced in Thailand, until December 2019. During the study period, 10 BP patients with T2DM were identified. A total of 5 DPP4i-associated BP (3 on vildagliptin, 1 on linagliptin, and 1 on sitagliptin) were found. All patients were male with a mean age at BP development of 80.4 years (73-86 years). All patients had a long-standing duration of diabetes (median duration 34 years), and mean A1C was 7.5 ± 1.4%. The median time to BP development after the introduction of DPP4i was 64 months (range 20-128 months). The severity of BP was classified as mild in 2 cases. In all cases, the association between the drug intake and BP onset was classified as "possible" according to the Naranjo causality scale. All of the patients continued taking DPP4i after BP diagnosis, and one patient died of lung cancer 18 months after BP diagnosis. Only 2 patients could achieve complete remission at least 2 months after stopping DPP4i. Our case series demonstrated a potential link between DPP4i and the development of BP, which mainly occurred in very elderly male patients. The latency period from an introduction of DPP-4i could be several years, and the clinical course after DPP4i discontinuation varied. Clinicians prescribing DPP4i should be aware of this association and consider stopping this medication before a refractory disease course ensues.

Identifiers

PMID33101737
PMCPMC7569454
OpenAlexW3091882316

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.