- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03825302
Prostaglandin E2 as a Critical Mediator of Sex Disparities in Asthma
March 2, 2022 updated by: Katherine Cahill, Vanderbilt University Medical Center
This study seeks to understand how biological sex influences airway hyperresponsiveness in adult asthma.
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Withdrawn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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Tennessee
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Nashville, Tennessee, United States, 37232
- Vanderbilt University Medical Center
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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 50 years (ADULT)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
Asthmatics at VUMC
Description
Inclusion Criteria:
- Subject must be able to understand and provide informed consent
- Age 18-50
- A history of physician-diagnosed asthma well controlled as assessed by ACQ-6 <1.5 and FEV1>70% of predicted and FEV1 >1.5 liters.
- Asthma must be persistent, defined by the requirement of a daily controller agent.
- Use of a stable dose of daily inhaled corticosteroids for the prior 3 months.
- Female subjects of childbearing potential must have a negative pregnancy test upon study entry and at each study visit.
Exclusion Criteria:
- Inability or unwillingness of a participant to give written informed consent or comply with study protocol.
- Hypogonadism, irregular menstrual cycles, polycystic ovarian syndrome (PCOS), exogenous hormonal supplements or contraception.
- Any chronic lung condition outside of asthma including chronic obstructive pulmonary disease (COPD), interstitial lung disease, eosinophilic granulomatosis with polyangiitis, allergic bronchopulmonary aspergillosis.
- Inability or unwillingness to hold the following medications prior to mannitol and methacholine inhalational challenge(s): Short-Acting Beta 2 Agonists >8 hours, Inhaled Corticosteroids and Anticholinergic Bronchodilators >12 hours, Phosphodiesterase Inhibitors or Adenosine Receptors >24 hours, Long-acting Beta 2 Agonists >36 hours, Long-acting Anticholinergics or Short-Acting Antihistamines >48 hours, Long-Acting Antihistamines >72 hours, and Leukotriene-Receptor Antagonist or 5-Lipooxygenase Inhibitors >4 days.
- For males, a screening morning serum total testosterone level (obtained between 8-10 AM) below the normal reference lab value.
- Current pregnancy, breast-feeding, or plans to become pregnant during the study period.
- Oral or systemic corticosteroid use or biologic agent for asthma in the previous 3 months or ED/Hospitalization for asthma within 6 months.
- Use of investigational drugs within 12 weeks of participation.
- Known hypersensitivity or allergy to mannitol, gelatin or methacholine.
- Upper or lower respiratory tract infection within the proceeding 6 weeks.
- A history of uncontrolled hypertension, coronary artery disease, stroke, epilepsy, urinary tract obstruction, untreated thyroid disease, or a chronic lung disease other than asthma.
- Daily use of a beta-blocker.
- Intolerance to anticholinergic medications.
- Inability to produce an adequate sputum sample.
- Past or current medical problems or findings from physical examination or laboratory testing that are not listed above, which, in the opinion of the investigator, may pose additional risks from participation in the study, may interfere with the participant's ability to comply with study requirements or that may impact the quality or interpretation of the data obtained from the study.
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?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Males with asthma
Induced sputum, methacholine challenge, and mannitol challenge will be performed.
|
Methacholine inhalation challenge will be administered to both male and females with asthma
Mannitol inhalation challenge will be administered to both male and females with asthma
|
Females with asthma
Induced sputum, methacholine challenge, and mannitol challenge will be performed.
|
Methacholine inhalation challenge will be administered to both male and females with asthma
Mannitol inhalation challenge will be administered to both male and females with asthma
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Provacative dose of mannitol that elicits a 15% decline in forced expiratory volume in males
Time Frame: Baseline
|
Males only
|
Baseline
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Provacative dose of mannitol that elicits a 15% decline in forced expiratory volume in females
Time Frame: Baseline
|
Females only during the luteal phase of the menstrual cycle
|
Baseline
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
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 (ANTICIPATED)
December 1, 2021
Primary Completion (ANTICIPATED)
December 1, 2022
Study Completion (ANTICIPATED)
December 1, 2022
Study Registration Dates
First Submitted
January 30, 2019
First Submitted That Met QC Criteria
January 30, 2019
First Posted (ACTUAL)
January 31, 2019
Study Record Updates
Last Update Posted (ACTUAL)
March 17, 2022
Last Update Submitted That Met QC Criteria
March 2, 2022
Last Verified
March 1, 2022
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Respiratory Tract Diseases
- Immune System Diseases
- Lung Diseases
- Hypersensitivity, Immediate
- Bronchial Diseases
- Lung Diseases, Obstructive
- Respiratory Hypersensitivity
- Hypersensitivity
- Asthma
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Autonomic Agents
- Peripheral Nervous System Agents
- Cholinergic Agents
- Natriuretic Agents
- Diuretics, Osmotic
- Diuretics
- Cholinergic Agonists
- Respiratory System Agents
- Miotics
- Parasympathomimetics
- Bronchoconstrictor Agents
- Muscarinic Agonists
- Mannitol
- Methacholine Chloride
Other Study ID Numbers
- PGE2 in asthma
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
UNDECIDED
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
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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