- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04626557
Identifying Disease Mechanisms Underlying the Association Between Asthma and Infertility - The INFLammation Asthma Mechanism Endometrium (INFLAME) Study (INFLAME)
Study Overview
Detailed Description
The link between asthma and fertility may be associated with widespread tissue inflammation, as inflammatory changes are not only affecting the respiratory organs, but also systemically, and here by affecting both the lungs and the reproductive organs in women with asthma.
A likely mechanism involved in infertility among asthmatic women seems to be inflammatory changes found in the endometrium of the uterus. Some studies show high number of mast cells, eosinophil granulocytes and basophil granulocytes in the endometrium[1]. One study found low values of VEGF in endometrial secretion in women with asthma as a possible cause for subfertility [2]. Others assume, that an imbalance of the adaptive immune system (both the Th1 and Th2/TH17 response) is associated with infertility [3].
It has been shown that inflammation in the endometrium with a specific combination of cytokines and chemokines is part of successful implantation [4]. However, If the inflammatory process is characterized by a less optimal combination of cytokines and chemokines the reproductive outcome may be less successful. The systemic inflammation caused by asthma could offset the balance between the cytokines and chemokines in the endometrium and thereby have negative impact on reproductive outcome.
In the present study, our aim is to analyze inflammation in the uterus and in the airways in women with asthma referred to fertility treatment receiving Intrauterine insemination (IUI) or in vitro fertilization (IVF) to characterize and thereby provide knowledge of the mechanisms underlying the association between asthma and reproductive outcomes.
In an explorative non-randomized study, including 30 participants divided into two groups: 15 women with asthma and 15 non-asthmatic controls. The patients will go through an asthma work-up (diagnosis, allergy, medication, and inflammation). Menstrual blood will be collected at home using the menstrual cup and at the 7th-14th day cycle day, an endometrium sample from the uterus lining will be obtained together with sputum, as indicators of the system inflammation expressed both in the lungs and the uterus, and blood samples.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Locations
-
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Hvidovre
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Copenhagen, Hvidovre, Denmark, 2650
- Recruiting
- Department of Respiratory Medicine, Hvidovre University Hospital
-
Contact:
- Casper Tidemandsen, MD
- Phone Number: +4523497817
- Email: casper.tidemandsen.02@regionh.dk
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion criteria:
Asthma n= 15:
- Informed consent.
- Diagnosis of asthma.
- 18-40 years.
- Referred to Intra Uterine Insemination (IUI) or in vitro fertilization (IVF)
Non-asthmatic n= 15:
- Informed consent.
- 18-40 years.
- Referred to Intra Uterine Insemination (IUI) or in vitro fertilization (IVF)
Exclusion criteria:
Asthma only:
- Other respiratory diseases than asthma.
- Other inflammatory disease or a disease that affects fertility.
- Infections requiring antibiotics or anti-viral treatment within 30 days.
- Current smokers and/or life-time tobacco exposure > 10 pack-years.
- Endometriosis.
- Infertility due to other reasons than male factor, tubal factor or unexplained infertility.
- No pelvic inflammatory disease (PID) within the last 6 months.
- No contraceptive intrauterine device (IUD), or other contraceptive for the last 6 months.
Non-asthmatic controls:
- No respiratory diseases.
- Other inflammatory disease or a disease that affects fertility.
- Infections requiring antibiotics or anti-viral treatment within 30 days.
- Current smokers and/or life-time tobacco exposure > 10 pack-years.
- Endometriosis.
- Infertility due to other reasons than male factor, tubal factor or unexplained infertility.
- No pelvic inflammatory disease (PID) within the last 6 months.
- No contraceptive intrauterine device (IUD), or other contraceptive for the last 6 months.
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Women with astma
At the 7th -14th cycle day, an endometrium sample from the uterus lining will be obtained together with sputum, as indicators of the system inflammation expressed both in the lungs and the uterus, and blood samples.
|
biopsy of the endometrium
|
Women without asthma
At the 7th - 14th cycle day, an endometrium sample from the uterus lining will be obtained together with sputum, as indicators of the system inflammation expressed both in the lungs and the uterus, and blood samples.
|
biopsy of the endometrium
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
type of inflammatory cells
Time Frame: 6 months
|
To classify the type of inflammatory cells, (ie.
cytokines and inflammatory cells), found in the uterine lining (endometrium) in women with asthma suffering from infertility, compared to non-asthmatic controls.
|
6 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
airway inflammation vs inflammation in the endometrium.
Time Frame: 6 months
|
Explore associations between airway inflammation and inflammation in the endometrium.
|
6 months
|
systemic inflammation vs local inflammation
Time Frame: 6 months
|
Explore associations between systemic inflammation and local inflammation
|
6 months
|
Severity
Time Frame: 6 months
|
Differences in local inflammation of the endometrium within different severities/phenotypes of asthma.
|
6 months
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- H-20029413
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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