NCT04511884

Screening Microorganism of Cryptogenic Mechanical Pneumonia Through Next Generation Sequencing to Lung Tissue Fluid

Screening Microorganism of Cryptogenic Mechanical Pneumonia Through NGS to Lung Tissue Fluid

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 100 (estimated)
• Sponsor: Shanghai Pulmonary Hospital, Shanghai, China · Academic / Other
• Sex: All
• Age: 18 Years – 80 Years
• Healthy volunteers: —

Summary

The etiology of cryptogenic organizing pneumonia (COP)was not clear, but previous studies have shown that in some patients, some pathogen could be detected in bronchoalveolar lavage fluid (BALF), and may be one of the causes of COP. This study aimed to screen the pathogenic microorganisms in BALF and lung puncture fluid of the patients with COP through the next-generation sequencing to further clarify the correlation between the incidence of COP and pathogenic microorganisms.

Detailed description

The cause of cryptogenic organizing pneumonia (COP) was unknown, but studies had shown that certain bacteria, viruses, or specific pathogens could be detected in bronchoalveolar lavage fluid (BALF) in some patients, and these pathogenic microorganisms may be the cause of COP. Specimens were obtained by conventional methods (sputum, blood, BALF or lung puncture fluid) for microbiological detection. Due to the influence of the quality of acquired specimens, specimen preservation and transportation which were influenced by external factors, many patients did not get good test results, which affected the diagnosis and subsequent treatment of patients. Next-generation sequencing (NGS) which could determine hundreds of thousands to millions of DNA molecules in parallel at one time, and efficiently sequence or fragment of pathogenic microorganisms. NGS had greatly improved the detection rate of pathogenic microorganisms. This study aimed to screen pathogenic microorganisms in BALF and lung puncture fluid of COP patients by NGS, and further clarify the correlation between occurrence of COP and pathogenic microorganisms.

Conditions

• Cryptogenic Organizing Pneumonia
• Idiopathic Interstitial Pneumonias

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	Next-generation sequencing	The patient who may be diagnosed with cryptogenic organizing pneumonia will be detected through next-generation sequencing.

Timeline

• Start date: 2020-08-07
• Primary completion: 2024-09-01
• Completion: 2024-12-01
• First posted: 2020-08-13
• Last updated: 2020-09-01

Locations

2 sites across 1 country: China