HealthyNCT00213850
Reference Values for Respiratory Resistance Measured by the Interrupter Technique in Adults
A study testing EFR in people with Healthy, run by University Hospital, Strasbourg, France at 1 site in France.
Trial summary
The purpose is to obtain reference values of respiratory resistance (a technique widely used in children), in adults. The interest is that this technique needs only little co-operation and would be particularly adapted in subjects in whom co-operation is insufficient for other measurements. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Healthy
- What is being tested?
- EFR
- Type of treatment
- Surgery or procedure
- How many people
- 122 participants
- Where
- 1 siteFrance
- Study dates
- Jan 2002to Sep 2006
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Adult non smokers, without any disease interfering with pulmonary function
Who cannot join
None listed.
Trial locations and contacts
1 site in 1 country.
France1 site
Service de Physiologie Clinique et des Explorations Fonctionnelles, Hôpital Civil
Strasbourg, 67091
About this study
The purpose is to obtain reference values of respiratory resistance (a technique widely used in children), in adults. The interest is that this technique needs only little co-operation and would be particularly adapted in subjects in whom co-operation is insufficient for other measurements.
- Conditions
- Healthy
- Being tested
- EFR
- Keywords
- Interrupter technique, Respiratory resistance, Normal adults
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
EFRProcedure or surgery
What is being measured
The primary outcome is the main question the study is designed to answer.
References values obtained once
Secondary outcomes (1)
Estimation of short-term reproductibility
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Sep 2005 (estimated)
- Study startJan 2002
- Study completionSep 2006
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for HealthyStudies of the same condition, open and under way.
- More trials run by University Hospital, Strasbourg, FranceThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 122 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospital, Strasbourg, France
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Monique OSWALD-MAMMOSSER, MD, Principal investigator, Service de Physiologie Clinique et des Explorations Fonctionnelles, Hôpitaux Universitaires de Strasbourg
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00213850
- Sponsor's protocol ID
- 2667
- Status last verified
- Dec 2025
- First submitted
- 13 Sep 2005
- Last updated
- 22 Dec 2025
- Results posted
- No
Publications
Oswald-Mammosser M, Charloux A, Enache I, Lonsdorfer-Wolf E. The opening interrupter technique for respiratory resistance measurements in children. Respirology. 2010 Oct;15(7):1104-10. doi: 10.1111/j.1440-1843.2010.01828.x.
PubMed 20874747
Study at a glance
From the registry record, last updated by the sponsor on 22 Dec 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Reference Values for Respiratory Resistance Measured by the Interrupter Technique in Adults
- ClinicalTrials.gov ID
- NCT00213850
- Acronym / sponsor ID
- 2667
- Conditions
- Healthy
- Keywords
- Interrupter technique, Respiratory resistance, Normal adults
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 122 participants (actual)
- Lead sponsor
- University Hospital, Strasbourg, FranceUniversity, hospital or other
- Study start
- Jan 2002
- Study completion
- Sep 2006
- First posted
- 21 Sep 2005 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose is to obtain reference values of respiratory resistance (a technique widely used in children), in adults. The interest is that this technique needs only little co-operation and would be particularly adapted in subjects in whom co-operation is insufficient for other measurements.
Study design
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Adult non smokers, without any disease interfering with pulmonary function
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| EFR | Procedure or surgery | – |
Primary outcome
References values obtained once
1 secondary outcome
Estimation of short-term reproductibility
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Dec 2025.
- Results publication: PubMed 20874747Oswald-Mammosser M, Charloux A, Enache I, Lonsdorfer-Wolf E. The opening interrupter technique for respiratory resistance measurements in children. Respirology. 2010 Oct;15(7):1104-10. doi: 10.1111/j.1440-1843.2010.01828.x.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Monique OSWALD-MAMMOSSER, MD principal investigator
Service de Physiologie Clinique et des Explorations Fonctionnelles, Hôpitaux Universitaires de Strasbourg
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing EFR in people with Healthy, run by University Hospital, Strasbourg, France at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 22 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
References values obtained once. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00213850, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Dec 2025.