Dysmetabolic SyndromeReVAs2NCT03066401
Respiratory Variations for Assessing Blood Withdrawal 2
An observational study of Dysmetabolic Syndrome and Hyperferritinemia, run by University Hospital, Lille at 1 site in France.
Trial summary
OBJECTIVES: To investigate whether respiratory variations of the inferior vena cava (ΔIVC) and internal jugular vein (ΔIJV) diameters during standardized breathing (ΔIVCST and ΔIJVST) increase after a therapeutic bleeding in spontaneously breathing and obese patients with dysmetabolic hyperferricemia. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Dysmetabolic Syndrome, Hyperferritinemia, Obese
- What is being tested?
- echography
- Type of treatment
- Surgery or procedure
- How many people
- 5 participants
- Where
- 1 siteFrance
- Study dates
- Jan 2015to Jun 2016
- Phase
- Observational
- 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
- No healthy volunteers
- Adult, Older adult
Study population: Obese patients with dysmetabolic hyperferritinemia
Who may be able to join
- adult patients of > or equal 18 years
- dysmetabolic hyperferritinemia
- undergoing a therapeutic blood withdrawal
- health insured
- obese (body mass index > or equal 30Kg/m²)
Who cannot join
- pregnancy
- transthoracic echogenicity unsuitable for measuring the inferior vena cava diameters
- clinical signs of active exhalation
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Respiratory Variations in Diameters of the Inferior Vena Cava and the Internal Jugular Vein to Assess Blood Withdrawal in Patients With Dysmetabolic Hyperferritinemia
OBJECTIVES: To investigate whether respiratory variations of the inferior vena cava (ΔIVC) and internal jugular vein (ΔIJV) diameters during standardized breathing (ΔIVCST and ΔIJVST) increase after a therapeutic bleeding in spontaneously breathing and obese patients with dysmetabolic hyperferricemia.
DESIGN: Prospective, monocentric study in the EFS Nord-de-France blood center.
Read more
PATIENTS: Obese patients with dysmetabolic hyperferricemia undergoing a therapeutic bleeding.
INTERVENTIONS: The investigators performed ultrasound measures and collected clinical parameters before and after a therapeutic bleeding, during a standardized respiratory maneuver.
MAIN OUTCOME AND MEASURES: The primary endpoint was the ΔIVCST change induced by a 300 to 500ml therapeutic bleeding. The investigators measured the minimal and maximal IVC and IJV diameters during a standardized respiratory maneuver. ΔIVCST and ΔIJVST were calculated as follows: [(maximal diameter - minimal diameter)/maximal diameter].100.
- Conditions
- Dysmetabolic Syndrome, Hyperferritinemia, Obese
- Being tested
- echography
- Keywords
- hyperferritinemia, dysmetabolic hyperferritinemia, obese, blood withdrawal, respiratory variations, inferior vena cava, internal jugular vein, ultrasound, ultrasonography, echography
- Medical subject headings
- Hyperferritinemia, Obesity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
echographyProcedure or surgery
The inferior vena cava and the internal jugular vein diameters were measured by echography before and after blood withdrawal during a standardized respiratory maneuver
| Study group | Role | What they receive |
|---|---|---|
| obese patients with dysmetabolic hyperferritinemia | PATIENTS: obese patients with dysmetabolic hyperferritinemia undergoing a therapeutic bleeding.
INTERVENTIONS: The investigators performed ultrasound measurements (echography) and collected clinical parameters before and after a 300 to 500ml therapeutic bleeding, during a standardized respiratory maneuver. Receives: Procedure: echography |
What is being measured
The primary outcome is the main question the study is designed to answer.
blood withdrawal-induced changes in the respiratory variations of the inferior vena cava during a standardized respiratory maneuver (ΔIVCST)
The primary endpoint was the ΔIVCST change induced by a 300 to 500ml therapeutic bleeding. The investigators measured the minimal and maximal IVC diameters during a standardized ventilation. ΔIVCST was calculated as follows: [(maximal diameter - minimal diameter)/maximal diameter].100.
Measured: during a standardized respiratory maneuver, an average 1 hour maximum
Secondary outcomes (1)
blood withdrawal-induced changes in the respiratory variations of the internal jugular vein during a standardized respiratory maneuver (ΔIJVST)
The primary endpoint was the ΔIJVST change induced by a 300 to 500ml therapeutic bleeding. The investigators measured the minimal and maximal IJV diameters during a standardized ventilation. ΔIJVST was calculated as follows: [(maximal diameter - minimal diameter)/maximal diameter].100.
Measured: during a standardized respiratory maneuver, an average 1 hour maximum
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Feb 2017
- Study startJan 2015
- Primary completionJun 2016
- Study completionJun 2016
Why it stopped: insufficient inclusion rate
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Dysmetabolic SyndromeStudies of the same condition, open and under way.
- More trials run by University Hospital, LilleThe 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
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 5 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospital, Lille
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Sébastien Preau, MD, Principal investigator, University Hospital, Lille
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03066401
- Sponsor's protocol ID
- 2013_37
- Other IDs
- 2013-A01684-41
- Acronym
- ReVAs2
- Status last verified
- Feb 2017
- First submitted
- 9 Nov 2016
- Last updated
- 28 Feb 2017
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 28 Feb 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Respiratory Variations in Diameters of the Inferior Vena Cava and the Internal Jugular Vein to Assess Blood Withdrawal in Patients With Dysmetabolic Hyperferritinemia
- ClinicalTrials.gov ID
- NCT03066401
- Acronym / sponsor ID
- ReVAs2 / 2013_37
- Conditions
- Dysmetabolic Syndrome, Hyperferritinemia, Obese
- Keywords
- hyperferritinemia, dysmetabolic hyperferritinemia, obese, blood withdrawal, respiratory variations, inferior vena cava, internal jugular vein, ultrasound
- Study type
- Observational
- Recruitment status
- TerminatedReason stopped: insufficient inclusion rate
- Enrolment
- 5 participants (actual)
- Lead sponsor
- University Hospital, LilleUniversity, hospital or other
- Study start
- Jan 2015
- Primary completion
- Jun 2016 (actual)
- Study completion
- Jun 2016 (actual)
- First posted
- 28 Feb 2017 (actual)
- 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.
OBJECTIVES: To investigate whether respiratory variations of the inferior vena cava (ΔIVC) and internal jugular vein (ΔIJV) diameters during standardized breathing (ΔIVCST and ΔIJVST) increase after a therapeutic bleeding in spontaneously breathing and obese patients with dysmetabolic hyperferricemia.
DESIGN: Prospective, monocentric study in the EFS Nord-de-France blood center.
PATIENTS: Obese patients with dysmetabolic hyperferricemia undergoing a therapeutic bleeding.
INTERVENTIONS: The investigators performed ultrasound measures and collected clinical parameters before and after a therapeutic bleeding, during a standardized respiratory maneuver.
MAIN OUTCOME AND MEASURES: The primary endpoint was the ΔIVCST change induced by a 300 to 500ml therapeutic bleeding. The investigators measured the minimal and maximal IVC and IJV diameters during a standardized respiratory maneuver. ΔIVCST and ΔIJVST were calculated as follows: [(maximal diameter - minimal diameter)/maximal diameter].100.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| obese patients with dysmetabolic hyperferritinemia | – | Procedure: echographyPATIENTS: obese patients with dysmetabolic hyperferritinemia undergoing a therapeutic bleeding. INTERVENTIONS: The investigators performed ultrasound measurements (echography) and collected clinical parameters before and after a 300 to 500ml therapeutic bleeding, during a standardized respiratory maneuver. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Obese patients with dysmetabolic hyperferritinemia
Key inclusion criteria (5 listed)
- adult patients of > or equal 18 years
- dysmetabolic hyperferritinemia
- undergoing a therapeutic blood withdrawal
- health insured
- obese (body mass index > or equal 30Kg/m²)
Key exclusion criteria (3 listed)
- pregnancy
- transthoracic echogenicity unsuitable for measuring the inferior vena cava diameters
- clinical signs of active exhalation
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 |
|---|---|---|
| echographyThe inferior vena cava and the internal jugular vein diameters were measured by echography before and after blood withdrawal during a standardized respiratory maneuver | Procedure or surgery | obese patients with dysmetabolic hyperferritinemia |
Primary outcome
blood withdrawal-induced changes in the respiratory variations of the inferior vena cava during a standardized respiratory maneuver (ΔIVCST)
Time frame: during a standardized respiratory maneuver, an average 1 hour maximum
The primary endpoint was the ΔIVCST change induced by a 300 to 500ml therapeutic bleeding. The investigators measured the minimal and maximal IVC diameters during a standardized ventilation. ΔIVCST was calculated as follows: [(maximal diameter - minimal diameter)/maximal diameter].100.
1 secondary outcome
blood withdrawal-induced changes in the respiratory variations of the internal jugular vein during a standardized respiratory maneuver (ΔIJVST)
Time frame: during a standardized respiratory maneuver, an average 1 hour maximum
Results and safety
The study was stopped early (reason given: insufficient inclusion rate). Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Feb 2017.
- Individual participant dataSharing planned: No
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.
Sébastien Preau, MD principal investigator
University Hospital, Lille
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Dysmetabolic Syndrome and Hyperferritinemia, run by University Hospital, Lille 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 5 inclusion and 3 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: stopped early, as of the sponsor's last update on 28 Feb 2017. 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 was stopped early (reason given: insufficient inclusion rate). Results are not available in the source record.
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?
blood withdrawal-induced changes in the respiratory variations of the inferior vena cava during a standardized respiratory maneuver (ΔIVCST) (time frame: during a standardized respiratory maneuver, an average 1 hour maximum). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 28 Feb 2017.