Palmoplantar Pustulosis and Generalized Pustular Psoriasis: A National Population-based Analysis of Prevalence

NCT ID: NCT04566471

Last Updated: 2020-09-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

200 participants

Study Classification

OBSERVATIONAL

Study Start Date

2012-01-01

Study Completion Date

2021-12-31

Brief Summary

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This study plans to calculate the prevalence and incidence of palmoplantar pustulosis and generalized pustular psoriasis based on the national medical insurance data and analyze the composition characteristics and some clinical features of patients, through taking into account of the research status of palmoplantar pustulosis and generalized pustular psoriasis and the characteristics of medical insurance data.

Detailed Description

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Conditions

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Palmoplantar Pustulosis Generalized Pustular Psoriasis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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PPP and GPP

Palmoplantar pustulosis (PPP) and Generalized pustular psoriasis (GPP) are rare chronic inflammatory skin diseases, characterized by repeated episodes of sterile pustules in several months or years, associated with erythrokeratodermia generally. Both two diseases are easy to cause skin rupture, leading to bleeding and pain.

prevalence/incidence

Intervention Type OTHER

It is an observational study for prevalence/incidence, no intervention provided.

Interventions

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prevalence/incidence

It is an observational study for prevalence/incidence, no intervention provided.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* The insured population of the national urban employee basic medical insurance and the urban resident basic medical insurance from January 1, 2012, to December 31, 2016 (60 months) (the denominator)
* The patients have been diagnosed with palmoplantar pustulosis or generalized pustular psoriasis (including disease name, English abbreviation and ICD code)
* Both outpatient and inpatient patients are included

Exclusion Criteria

* The individuals whose information is only contained in the reimbursement settlement database but not in the insurance coverage database will be considered as invalid reimbursement individuals and be excluded from the study (the denominator)
* The patients have been diagnosed with non-PPP and -GPP diseases, such as pustular psoriasis in palm and toe, pustular arthritis osteitis and SAPHO syndrome
Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Peking University Third Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Siyan Zhan, PhD

Role: PRINCIPAL_INVESTIGATOR

Peking University Third Hospital

Other Identifiers

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BI13680065

Identifier Type: -

Identifier Source: org_study_id

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