Aortic AneurysmASAPNCT00661518
PET/CT Imaging of Aneurysm Wall Inflammation
An observational study of Aortic Aneurysm, run by Radboud University Medical Center at 1 site in Netherlands.
Trial summary
Rationale: Aneurysm development, progression and rupture are characterised by extensive inflammation, dominated by the infiltration of T-cells, B-cells and macrophages. Recent studies into the pathophysiology of aneurysm wall degradation suggest a close relation between increased mechanical stress and the local… Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Aortic Aneurysm
- How many people
- 35 participants
- Where
- 1 siteNetherlands
- Study dates
- Oct 2007to Dec 2008
- 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 Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: Population: At the Radboud University Nijmegen Medical Centre, approximately 80 patients undergo prophylactic aneurysm repair each year. 10-15 patients are scheduled for conventional ('open') repair the remaining 65-70 patients undergo endovascular aneurysm. We therefore expect to finish including patients for both studies by the end of august 2008. The study population will be comprised both male (± 80%) and female patients with an abdominal aortic aneurysm. Inclusion criteria Exclusion criteria -Diabetes Mellitus type 1 en 2
Who may be able to join
- scheduled for conventional (10 patients) or endovascular (25 patients) aneurysm repair.
- Informed consent
Who cannot join
- Diabetes Mellitus type 1 en 2
Trial locations and contacts
1 site in 1 country.
Netherlands1 site, 1 recruiting
- Recruiting
Radboud University Nijmegen Medical Centre
Nijmegen, Gelderland, 6500HB
Maarten Truijers, MD, +31243613956, M.truijers@chir.umcn.nl
Maarten Truijers, MD
About this study
Official title: Imaging of Aneurysm Wall Inflammation Using Positron Emission Tomography.
Rationale: Aneurysm development, progression and rupture are characterised by extensive inflammation, dominated by the infiltration of T-cells, B-cells and macrophages. Recent studies into the pathophysiology of aneurysm wall degradation suggest a close relation between increased mechanical stress and the local activation of infiltrated lymphocytes and macrophages. The non-invasive detection of aneurysm wall inflammation, using 18-fluorodeoxyglucose positron emission tomography (FDG-PET) might therefore provide valuable information on the extend of the disease and could clarify the role of mechanical stress on the propagation of aneurysm wall inflammation.
Objective: Correlation of FDG uptake and in vitro aneurysm wall tensile strength. (primary objective). The effect of aneurysm sac depressurisation, after endovascular aneurysm repair, on aneurysm wall inflammation (secondary objective).
Read more
Study design: Observational case series (pilot). Study population: Patients scheduled for conventional (open) and endovascular aneurysm repair.
Main study parameters: Standard uptake value (SUV) measurements to asses FDG uptake in the aneurysm wall and in vitro aneurysm wall strength (N/mm).
Nature and extent of the burden and risks associated with participation,
benefit and group relatedness: Patients scheduled for conventional (open) or endovascular aneurysm repair are admitted to the hospital the day before surgery. At that point all patients will be evaluated using FDG-PET. Although intake of sugar-free liquids is permitted, glucose intake is restricted 6 hours prior to FDG-PET imaging. One hour after intravenous injection of 200-220 MBq FDG, whole body emission and transmission images will be acquired. To determine inflammation markers ( e.g. CRP), blood and urine samples will be collected prior to the operation and again 6 weeks after surgery. For in vitro aneurysm wall tensile strength testing wall specimens will be harvested during conventional aneurysm repair.
- Conditions
- Aortic Aneurysm
- Medical subject headings
- Aortic Aneurysm
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| 1 | Patients scheduled for conventional aneurysm repair | |
| 2 | Patients scheduled for endovascular aneurysm repair |
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Apr 2008 (estimated)
- Study startOct 2007
- Primary completionOct 2008 (estimated)
- Study completionDec 2008 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Aortic AneurysmStudies of the same condition, open and under way.
- More trials run by Radboud University Medical CenterThe 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
- Case-control
- Time perspective
- Prospective
- Enrolment
- 35 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Radboud University Medical Center
- Sponsor type
- University, hospital or other
- Investigators
- Maarten Truijers, MD, Principal investigator, Radboud University Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00661518
- Sponsor's protocol ID
- ASAP
- Acronym
- ASAP
- Status last verified
- Apr 2008
- First submitted
- 14 Apr 2008
- Last updated
- 18 Apr 2008
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 18 Apr 2008. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Imaging of Aneurysm Wall Inflammation Using Positron Emission Tomography.
- ClinicalTrials.gov ID
- NCT00661518
- Acronym / sponsor ID
- ASAP / ASAP
- Conditions
- Aortic Aneurysm
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 35 participants (estimated)
- Lead sponsor
- Radboud University Medical CenterUniversity, hospital or other
- Study start
- Oct 2007
- Primary completion
- Oct 2008 (estimated)
- Study completion
- Dec 2008 (estimated)
- First posted
- 18 Apr 2008 (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.
Rationale: Aneurysm development, progression and rupture are characterised by extensive inflammation, dominated by the infiltration of T-cells, B-cells and macrophages. Recent studies into the pathophysiology of aneurysm wall degradation suggest a close relation between increased mechanical stress and the local activation of infiltrated lymphocytes and macrophages. The non-invasive detection of aneurysm wall inflammation, using 18-fluorodeoxyglucose positron emission tomography (FDG-PET) might therefore provide valuable information on the extend of the disease and could clarify the role of mechanical stress on the propagation of aneurysm wall inflammation.
Objective: Correlation of FDG uptake and in vitro aneurysm wall tensile strength. (primary objective). The effect of aneurysm sac depressurisation, after endovascular aneurysm repair, on aneurysm wall inflammation (secondary objective).
Study design: Observational case series (pilot). Study population: Patients scheduled for conventional (open) and endovascular aneurysm repair.
Main study parameters: Standard uptake value (SUV) measurements to asses FDG uptake in the aneurysm wall and in vitro aneurysm wall strength (N/mm).
Nature and extent of the burden and risks associated with participation,
benefit and group relatedness: Patients scheduled for conventional (open) or endovascular aneurysm repair are admitted to the hospital the day before surgery. At that point all patients will be evaluated using FDG-PET. Although intake of sugar-free liquids is permitted, glucose intake is restricted 6 hours prior to FDG-PET imaging. One hour after intravenous injection of 200-220 MBq FDG, whole body emission and transmission images will be acquired. To determine inflammation markers ( e.g. CRP), blood and urine samples will be collected prior to the operation and again 6 weeks after surgery. For in vitro aneurysm wall tensile strength testing wall specimens will be harvested during conventional aneurysm repair.
Study design
- Observational model
- Case-control
- Time perspective
- Prospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| 1 | – | –Patients scheduled for conventional aneurysm repair |
| 2 | – | –Patients scheduled for endovascular aneurysm repair |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- Population: At the Radboud University Nijmegen Medical Centre, approximately 80 patients undergo prophylactic aneurysm repair each year. 10-15 patients are scheduled for conventional ('open') repair the remaining 65-70 patients undergo endovascular aneurysm. We therefore expect to finish including patients for both studies by the end of august 2008. The study population will be comprised both male (± 80%) and female patients with an abdominal aortic aneurysm. Inclusion criteria Exclusion criteria -Diabetes Mellitus type 1 en 2
Key inclusion criteria (2 listed)
- scheduled for conventional (10 patients) or endovascular (25 patients) aneurysm repair.
- Informed consent
Key exclusion criteria (1 listed)
- Diabetes Mellitus type 1 en 2
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Apr 2008.
Related trials for Aortic Aneurysm
Not yet recruitingObservational study
Pilot Study on the Effectiveness and Safety of OPTILENE® SILVER MESH ELASTIC in Prevention of Surgical Site Infection (SSI) and Incisional Hernia (IH)
Abdominal Aortic Aneurysm, Morbid Obesity
Not yet recruitingObservational study
Clinical Health Outcomes Evaluation of Terumo Aortic Hybrid Devices
Aortic Aneurysm and Dissection
Recruiting
Treatment in Thoracic Aortic Aneurysm: Surgery vs Surveillance
Ascending Aortic Aneurysm Enlargement, Ascending Aorta Aneurysm
Recruiting
GORE® TAG® Thoracic Branch Endoprosthesis Zone 0/1 Post-Approval Study
Aortic Arch Dissection, Aortic Arch Aneurysm
RecruitingPhase 4
Effect of Remimazolam Versus Propofol Total Intravenous Anesthesia on Intraoperative Hemodynamic Stability in Patients Undergoing Thoracic or Abdominal Endovascular Aortic Repair
Aortic Aneurysm, Thoracoabdominal, Aortic Aneurysm, Abdominal
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.
Maarten Truijers, MD principal investigator
Radboud University Medical Center
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 Aortic Aneurysm, run by Radboud University Medical Center at 1 site in Netherlands.
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 2 inclusion and 1 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: status not confirmed, as of the sponsor's last update on 18 Apr 2008. 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 Netherlands. 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Maarten Truijers, MD (+31243613956, m.truijers@chir.umcn.nl), or a site near the patient. AzTrials does not enrol participants or take referrals.
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 18 Apr 2008.