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A Case-control Study on the Differentiation Between Cough Variant Asthma and Chronic Cough

NCT06199830 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 645

Last updated 2024-10-15

No results posted yet for this study

Summary

this study aimed to compare characters in pulmonary function of patients with cough variant asthma and chronic cough and establish a diagnostic model.

Conditions

Interventions

DIAGNOSTIC_TEST

positive bronchial provocation test

Patients were asked to inhale gradually increasing doses of methacholine (0.9% saline, 0.078, 0.312, 1.125 and 2.504 mg), and FEV1 was measured after each inhalation. This test was stopped until a reducing in baseline FEV1 of 20%.

Sponsors & Collaborators

  • The First Affiliated Hospital of Zhejiang Chinese Medical University

    lead OTHER

Principal Investigators

  • Junchao Yang, Dr · The First Affiliated Hospital of Zhejiang Chinese Medical University

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-03-01
Primary Completion
2023-05-20
Completion
2023-08-31

Countries

  • China

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06199830 on ClinicalTrials.gov