A Prospective Observational Study of Biopredictors of Bronchial Thermoplasty Response in Patients With Severe Refractory Asthma (BTR Study)
Summary
The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →
Investigators
The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.
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
8 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.
- University of Alabama at Birmingham
Birmingham, Alabama, United States
- University of Arizona
Tucson, Arizona, United States
- National Jewish Health
Denver, Colorado, United States
- University of Chicago
Chicago, Illinois, United States
- Louisiana State University Health Sciences Center in New Orleans
New Orleans, Louisiana, United States
- Washington University School of Medicine
St Louis, Missouri, United States
- Creighton University
Omaha, Nebraska, United States
- Cleveland Clinic
Cleveland, Ohio, United States
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 Aug 2010
- Primary completion
- 1 Oct 2019
- Completion
- 1 Oct 2019
- Last update posted
- 27 Nov 2020
- Registered enrollment
- 133
- Registry id
- NCT01185275
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.