The Study of Differences in Eosinophil Function and Subsets in Patients With Eosinophilic Pulmonary Diseases

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

RECRUITING

Total Enrollment

300 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-01-01

Study Completion Date

2027-01-01

Brief Summary

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The study subjects of this research are patients with eosinophil-associated pulmonary diseases, including eosinophilic granulomatosis with polyangiitis, idiopathic hypereosinophilic syndrome, idiopathic acute eosinophilic pneumonia, idiopathic chronic eosinophilic pneumonia, and primary simple pulmonary eosinophilia. The aim is to detect eosinophil subtypes in peripheral blood based on surface protein expression, to understand the differences in eosinophil subtypes among patients with different diseases, to elucidate the significance of different eosinophil subtypes, and ultimately to provide a theoretical basis for the selection of treatment directions for patients.

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Detailed Description

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Conditions

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Eosinophil Subtype Eosinophilic Pulmonary Diseases

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Interventions

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observation

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* For Healthy Volunteers: healthy volunteers matching the age and gender of the study subjects
* For EPD: ① Persistent eosinophil count increase\>1500 per cubic millimeter for more than 6 months. ② Lack of evidence of a secondary cause of eosinophilia is required. ③ Signs and symptoms of end-organ damage presumed to be secondary to eosinophilia

Exclusion Criteria

* Patients with concurrent definitive pulmonary infections, malignancies, or other parenchymal lung diseases;
* Patients who are unable or unwilling to cooperate with the collection of clinical information (e.g., due to mental disorders, memory impairments, etc.);
* Patients who are unable to provide informed consent.

Minimum Eligible Age

18 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes