- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01745809
Bronchoscopy Study for Severe Asthma
May 28, 2015 updated by: University of Pennsylvania
An Exploratory Study to Obtain Functional and Transcriptional/Translational Profiling of Cells From Bronchial Lavages and Brushings in Severe Asthmatics and Healthy Control Subjects
The purpose of this research study is to collect lung tissue and fluid from two groups of people: those who have severe asthma, and those who do not.
These samples will then be tested in a laboratory to identify differences in the lung tissue cells and fluids that may exist between these two groups of people.
Study Overview
Status
Withdrawn
Conditions
Intervention / Treatment
Study Type
Observational
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Pennsylvania
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Philadelphia, Pennsylvania, United States, 19104
- Airways Biology Initiative at the University of Pennsylvania
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 65 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
10 severe asthma subjects matched with 10 healthy control subjects
Description
Inclusion Criteria:
Asthma Subject Inclusion Criteria
- Subject is an adult male or female between 18 and 65 years of age inclusive.
- Subject must have a pre-history of a physician's diagnosis of severe asthma (according to GINA classification) with some reversible airway obstruction (shown by peak flow or FEV1 in the last 12 months with a change of 12% in the absolute FEV1 measurement) and an exclusion of other significant pulmonary diseases (i.e., cystic fibrosis, tuberculosis, Interstitial Lung Disease and bronchopulmonary dysplasia)
- Subject has a positive methacholine test (PC20 < 16). This test sometimes cannot be performed in severe asthmatics because of low baseline FEV1 (< FEV1 50%). SABA reversibility of FEV1 is sufficient to define asthma in absence of MCh PC20.
- Subject's asthma has been stable for the past 30 days.
- The subject has been a non-smoker for the past year and should have less than a 10 pack year history.
- The subject must be capable of and willing to provide written informed consent
- The subject is able to understand and comply with protocol requirements and timetables, instructions and protocol-stated restrictions.
Healthy Subject Inclusion Criteria
- Subject is an adult male or female between 18 and 65 years of age inclusive. (Subjects will be age and gender matched) With age matching, we will enroll in a manner that age and gender will be matched 1:1 in the following cohorts: age 21-30, 31-40, 41-50, 51-60, 61-65.
- Subject must have an exclusion of asthma or other significant pulmonary diseases (i.e., cystic fibrosis, tuberculosis, Interstitial Lung Disease and bronchopulmonary dysplasia)
- The subject has been a non-smoker for the past year and should have less than a 10 pack year history.
- The subject has a negative methacholine test (PC20 > 16) and does not use inhaled steroids and/or SABA.
- The subject must be capable of and willing to provide written informed consent
The subject is able to understand and comply with protocol requirements and timetables, instructions and protocol-stated restrictions.
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Exclusion Criteria:
- As a result of the medical interview, physical examination or screening investigations, the physician responsible considers the volunteer unfit for the study.
- The subject has received an investigational drug or participated in any other research trial within 30 days or 5 half-lives, or twice the duration of the biological effect of any drug (whichever is longer), prior to the current study.
- No oral steroids within the last 3 months.
- No current anticoagulant and/or antiplatelet therapy.
- The subject has a history of alcohol or drug abuse within the last 5 years.
- The subject has history of hepatitis B, hepatitis C, or HIV virus.
- The subject has a history of chemotherapy or radiotherapy within the last 2 years.
- The subject has a history of diabetes.
- The subject is pregnant or lactating.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
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Severe Asthmatics
Subjects with a pre-existing physician diagnosis of asthma with reversible airflow obstruction of at least 12%.
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Subjects will have a screening visit and, if they qualify to take part in the study, they will undergo a single bronchoscopy procedure.
During the bronchoscopy, bronchoalveolar lavage (BAL) and bronchial brushings will be performed on each subject.
Other Names:
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Healthy non-smokers
Subjects will be never smokers or former smokers for the past year and less than 10 pack years lifetime with no history of asthma or any other lung disease.
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Subjects will have a screening visit and, if they qualify to take part in the study, they will undergo a single bronchoscopy procedure.
During the bronchoscopy, bronchoalveolar lavage (BAL) and bronchial brushings will be performed on each subject.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
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To obtain bronchial brushings and bronchial alveolar lavage fluid from 10 subjects with severe asthma (GINA criteria in The Global Initiative for Asthma, http://www.ginasthma.org ) and from 10 matched normal healthy subjects.
Time Frame: 1 year
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1 year
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Principal Investigator: Reynold Panettieri, MD, University of Pennsylvania
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
January 1, 2013
Primary Completion (Anticipated)
December 1, 2014
Study Completion (Anticipated)
December 1, 2014
Study Registration Dates
First Submitted
December 6, 2012
First Submitted That Met QC Criteria
December 6, 2012
First Posted (Estimate)
December 10, 2012
Study Record Updates
Last Update Posted (Estimate)
June 1, 2015
Last Update Submitted That Met QC Criteria
May 28, 2015
Last Verified
October 1, 2011
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 814383
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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