Clinical and economic impact of Sim&Size 3D simulation for planning implants in unruptured intracranial aneurysms
Official title: Assessment of the Clinical and Economic Impact of Sim&Size, a Simulation Software for Implantable Devices Used in the Treatment of Intracranial Aneurysms: A Prospective Multicenter Study.
Run by Sim&Cure · NCT07433075 · Data updated 2026-11-12
This trial will test whether using Sim&Size 3D simulation software to plan implantable devices reduces complications, procedure time, radiation exposure, and costs for adults having endovascular treatment of unruptured intracranial aneurysms.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 576 (estimated) |
| Sponsor | Sim&Cure Industry-sponsored |
| Drugs / interventions | radiation |
| Locations | 6 sites (Angers and 5 other locations) |
| Status | Recruiting |
| Started | April 10, 2026 |
| Main results expected | June 2028 |
| Study ends | June 2028 |
| Registry record updated | May 13, 2026 |
| Trial ID | NCT07433075 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (≥18 years) scheduled for endovascular treatment of an unruptured intracranial aneurysm whose planned implant model is present in the Sim&Size database, who are treated at a participating French center and covered by the French social security system, and who provide informed consent.
✕Probably not a fit
Patients with ruptured aneurysms, planned stent-only procedures, prior implants in the target area, giant aneurysms or poor-quality 3D imaging, significant imaging artifacts, or complex multiple-aneurysm procedures planned in a single session are excluded and unlikely to benefit from this protocol.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a prospective, multicenter interventional study comparing 3D simulation-guided device planning using the Sim&Size software with conventional manual 2D planning for endovascular treatment of unruptured intracranial aneurysms. Participating centers will use the simulation when the planned implant model is available in the Sim&Size database and will collect clinical, procedural, radiation, and cost-related outcomes. Key endpoints include need for device repositioning or additional devices, perioperative complications, procedure duration, imaging radiation dose, and economic impact. The study is being conducted at multiple French hospitals and requires patient consent and French social security affiliation.
Why it matters
Potential benefit: If successful, the software could reduce intra-procedural device maneuvers, lower complication risk, shorten procedures, decrease radiation exposure, and cut healthcare costs.
How similar studies have gone: Prior observational and pilot studies of 3D simulation and virtual sizing in neurovascular and other endovascular fields have suggested improved device sizing and fewer intra-procedural adjustments, but randomized evidence is limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patients aged ≥18 years planned to be treated endovascularly for unruptured intracranial aneurysms. * Planned implantable device models is available in the Sim\&Size simulation database and used following their approved indications. * Affiliated with the French social security system. * Signed the information and consent form Exclusion Criteria: * Patients scheduled to undergo endovascular treatment with stents only * Patients presenting for treatment of a ruptured aneurysm * Patients who have already been treated in the planned deployment area and whose previous treatment presents a potential contact with the new implant. * Giant intracranial aneurysm resulting in poor-quality reconstruction in the potential deployment area of the implant during 3DRA acquisition * Presence of artifacts on the 3DRA in the potential deployment area of the implant * Patients with multiple aneurysms whose treatment is planned during a single procedure and who require separate individual therapeutic strategies. Examples of individual therapeutic strategies excluded from the study: placement of two separate flow diverters without telescopic technique, individual coiling of each aneurysm. * Patients for whom pre-planning was performed using Sim\&Cure software prior to patient randomization. * Pregnant or breastfeeding women. * Patients under guardianship or conservatorship. * Emergency situations.
Where it's running
-
CHU d'Angers
Angers, France Recruiting -
CHU de Bordeaux
Bordeaux, France Recruiting -
Hôpital Bicêtre AP-HP
Le Kremlin-Bicêtre, France Recruiting -
Hôpital de La Timone
Marseille, France Not yet recruiting -
Fondation Rothschild
Paris, France Not yet recruiting -
CHU de Reims
Reims, France Not yet recruiting
Study contacts
- Study coordinator: Amandine RENE
- Email: a.rene@sim-and-cure.com
- Phone: +33783477287
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Predicting unruptured brain aneurysm rupture risk with blood pressure variability and 3D changes
This study follows adults with unruptured intracranial aneurysms who are managed without surgery to see if blood pressure variability and 3D changes in the aneurysm can predict rupture risk using advanced AI.
-
Early complications after flow diverter versus stent-assisted coiling for unruptured wide-neck intracranial bifurcation aneurysms
This real-world study tests which endovascular treatment—flow diverter or stent-assisted coiling—has fewer early complications in adults with unruptured wide-neck bifurcation aneurysms.
-
Gentle ear vagus nerve stimulation to reduce headache after aneurysm stent coiling
This study will try a noninvasive ear vagus nerve stimulation device to see if it reduces postoperative headaches in adults having stent-assisted coiling or flow-diverter treatment for unruptured brain aneurysms.
-
Comparing protein patterns in extracellular vesicles from different blood vessels in people with ruptured or unruptured brain aneurysms
This project tries to see if protein differences in extracellular vesicles taken from different blood vessels can help diagnose or predict outcomes for people with ruptured or unruptured brain aneurysms undergoing neurointerventional procedures.
-
Indobufen versus aspirin plus clopidogrel for preventing clots after endovascular treatment of unruptured brain aneurysms
This trial will test whether taking indobufen with clopidogrel instead of aspirin with clopidogrel better prevents clotting or bleeding after stent-assisted coiling or flow-diverter treatment in adults with unruptured intracranial aneurysms.
-
Evaluating a new embolization system for unruptured brain aneurysms
This study is testing a new device to see if it can safely treat unruptured brain aneurysms in patients.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.