A Study to Evaluate the Sensitivity and Specificity of Inhaled Methacholine in Bronchial Provocation Test
Summary
The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →
Investigators
No overall officials are registered on this study record. Site-level investigators, where published, appear with their sites below. Why? →
A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.
Sites
12 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.
- Beijing Chaoyang Hospital, Capital Medical University
Beijing, Beijing Municipality, China
- the First Hospital of Lanzhou University
Lanzhou, Gansu, China
- Guangdong Province Hospital of Chinese Medicine
Guangzhou, Guangdong, China
- the First Affiliated Hospital of Guangzhou Medical University
Guangzhou, Guangdong, China
- Liuzhou People'S Hospital
Liuzhou, Guangxi, China
- Tongji Hospital Affiliated To Tongji Medical College of Huazhong University of Science and Technology
Wuhan, Hubei, China
- the Affiliated Hospital of Inner Mongolia Medical Univercity
Hohhot, Inner Mongolia, China
- the First Affiliated Hospital of Nanchang University
Nanchang, Jiangxi, China
- Benxi Central Hospital
Benxi, Liaoning, China
- Weifang No.2 People'S Hospital
Weifang, Shandong, China
- West China Hospital，sichuan University
Chengdu, Sichuan, China
- Zhejiang Provincial Hospital of Chinese Medicine
Hangzhou, Zhejiang, China
Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.
Drugs studied
No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →
Registration & key dates
Registry attributes as recorded on the ClinicalTrials.gov study record.
- Start
- 31 Dec 2022
- Primary completion
- 28 Feb 2023
- Completion
- 30 Jun 2023
- Last update posted
- 2 Dec 2022
- Registered enrollment
- 280
- Registry id
- NCT05634473
Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.