Treatment of Intracranial Aneurysms using vascular Reconstruction Assist device
| ISRCTN | ISRCTN13532658 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN13532658 |
| Protocol serial number | Version 3/08/2010 |
| Sponsor | Lothian University Hospitals Division (UK) |
| Funder | Microvention Terumo Inc. (United States of America) |
- Submission date
- 02/02/2011
- Registration date
- 07/04/2011
- Last edited
- 05/04/2016
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Circulatory System
Plain English summary of protocol
Background and study aims
An intracranial aneurysm is a bulge in a blood vessel in the brain, caused by a weakness in the vessel wall. If it bursts (ruptures) this leads to bleeding and brain damage. Preventative surgery is recommended if there is a high risk of a rupture. Endovascular coiling involves inserting a thin tube into the aneurysm and passing tiny metal coils into the aneurysm to seal it off, preventing it from growing or rupturing. The aim of this study is to find out whether inserting a self-expanding tube (stent) into the aneurysm to assist coiling improves the outcome for the patient.
Who can participate?
Patients aged 18-70 with an intracranial aneurysm
What does the study involve?
Participants are randomly allocated to be treated with coiling either with or without stent assistance. Participants are assessed by angiography (a type of x-ray used to examine blood vessels) 12 months later to check for aneurysm recurrence.
What are the possible benefits and risks of participating?
Not provided at time of registration
Where is the study run from?
Western General Hospital (UK)
When is the study starting and how long is it expected to run for?
June 2011 to June 2016
Who is funding the study?
Microvention Terumo Inc. (USA)
Who is the main contact?
Dr Philip White
pmw@skull.dcn.ed.ac.uk
Contact information
Scientific
DCN X-Ray
Western General Hospital
Crewe Road
Edinburgh
EH4 2XU
United Kingdom
| pmw@skull.dcn.ed.ac.uk |
Study information
| Primary study design | Interventional |
|---|---|
| Study design | Prospective multinational randomised controlled trial |
| Secondary study design | Randomised controlled trial |
| Study type | Participant information sheet |
| Scientific title | Treatment of Intracranial Aneurysms using a vascular Reconstruction Assist device: a randomised controlled trial of self expanding stent (conventional mesh density) plus coiling versus coiling +/- temporary assist techniques |
| Study acronym | TIARA |
| Study objectives | Use of self-expanding stent will not improve angiographic outcome at 12 months (as assessed by independent core laboratory) |
| Ethics approval(s) | Ethics approval pending from UK Integrated Research Application System (IRAS). All other centres will seek ethics approval before recruitment of the first participant. |
| Health condition(s) or problem(s) studied | Cerebrovascular - aneurysms |
| Intervention | Aneurysm coiling +/- stent assistance |
| Intervention type | Procedure/Surgery |
| Primary outcome measure(s) |
Major angiographic recurrence rate at 12 months post procedure |
| Key secondary outcome measure(s) |
1. Procedural outcomes (procedural morbidity & mortality) |
| Completion date | 01/06/2016 |
Eligibility
| Participant type(s) | Patient |
|---|---|
| Age group | Adult |
| Lower age limit | 18 Years |
| Upper age limit | 70 Years |
| Sex | All |
| Target sample size at registration | 550 |
| Key inclusion criteria | 1. Age range 18-70 (evidence that procedural risk for stent placement in over 70 is 4 fold greater and saccular aneurysms are extremely uncommon under 18) 2. Patient world federation of neurosurgeons (WFNS) Grade 0-2 [anticipated most patients recruited will be 0] 3. Aneurysm judged suitable for treatment by coiling plus or minus the stent assistance and operator content to use/not use stent according to randomisation treatment allocation result 4. Aneurysm greater than or equal to 8mm in maximal diameter, with aneurysm neck greater than 4mm or dome to neck ratio less than 2:1, but less than 25mm in size. If target aneurysm previously treated by coiling the recurrence must have a maximal diameter in this range 5. If a patient presents with subarachnoid haemorrhage (SAH) and staged treatment with delayed stenting is judged appropriate due to aneurysm size/neck width then the patient is eligible |
| Key exclusion criteria | 1. Does not meet aneurysm size/neck characteristics outlined in inclusion criteria 2. Less than18 years or more than 70 years of age 3. Pregnant 4. Unable to consent for themselves 5. Non-saccular aneurysm - e.g. blister, fusiform or definitely dissecting aneurysm 6. Subarachnoid hemorrhage (SAH)/intracerebral haemorrhage from another aneurysm or intracranial lesion within last 28 days 7. Major surgery within last 30 days (or any other medical situation where dual antiplatelet therapy is contraindicated in the opinion of the responsible neurovascular team) 8. Intention to deploy flow diverting device/construct as primary aneurysm treatment 9. More than one aneurysm requiring treatment in current procedure 10. Target or a nearby aneurysm has had previous stent treatment such that a Vascular Reconstruction Device [VRD i.e. a stent] is already across all or greater than 1/3 of the neck of the target aneurysm 11. Medical or surgical co-morbidity such that the patients life expectancy is less than 1 year 12. The patient has been previously randomised into this trial 13. Patient has been randomised into another trial of an endovascular device for aneurysm treatment within the last 6 months 14. Deployment of stent judged essential to treat the aneurysm |
| Date of first enrolment | 01/06/2011 |
| Date of final enrolment | 01/06/2016 |
Locations
Countries of recruitment
- United Kingdom
- Scotland
- Germany
- Korea, South
- Netherlands
- Sweden
- United States of America
Study participating centre
EH4 2XU
United Kingdom
Results and Publications
| Individual participant data (IPD) Intention to share | No |
|---|---|
| IPD sharing plan summary | Not provided at time of registration |
| IPD sharing plan |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Participant information sheet | Participant information sheet | 11/11/2025 | 11/11/2025 | No | Yes |
Editorial Notes
05/04/2016: Plain English summary added.
