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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.

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.

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07433075
Acronym
ESSNAI
Enrollment
576
Registered
2026-02-25
Start date
2026-04-10
Completion date
2028-06-01
Last updated
2026-05-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Unruptured Intracranial Aneurysm

Keywords

endovascular, 3D simulation, healthcare costs, intracranial aneurysm, software

Brief summary

In recent years, endovascular treatment of intracranial aneurysms has seen remarkable growth, now surpassing traditional surgical approaches in terms of frequency of use. However, this transition to endovascular methods is not without its challenges. This type of procedure requires careful selection of the device to be implanted, a decision that is still based on manual two-dimensional measurements. This method is questionable, as it does not always take into account the complexity and specificities of certain aneurysms, where three-dimensional geometry can play a crucial role. As a result, these procedures carry significant risks, such as the need for additional maneuvers to remove or reposition devices, or even deploy another support device, which potentially increases the risk of perioperative complications, the duration of surgery, and the amount of radiation required for imaging. Beyond the impact on the patient, these complications also result in additional costs for the healthcare system, expenses that could likely be avoided if more precise and appropriate tools were used from the outset of the procedure. In this context, optimizing the choice of endovascular devices could have both clinical and economic impacts. Innovative technology such as Sim&Size, which supports healthcare professionals in their therapeutic decisions and choice of the appropriate endovascular device, should therefore improve the effectiveness and efficiency of endovascular treatments. Sim&Size is a Software as a Medical Device (SaMD) intended to provide a 3D view of the final placement of neurovascular implantable medical devices of the following types: flow diverters, intrasaccular devices, stent devices, and coils. It uses an actual image of the patient produced by 3D rotational angiography. It offers physicians the possibility of simulating the deployment of implantable medical devices in the artery to be treated and predicts the final placement and the extent of apposition of the implant. Sim&Size has CE marking and FDA clearance. This study is a prospective, randomized, multicenter study whose main objective is to show that the use of Sim&Size during the standard endovascular procedure, compared with a standard endovascular procedure without Sim&Size, reduces both the actual costs of the hospital stay and the rate of perioperative complications.

Interventions

OTHER3D simulation of placement of neurovascular implantable medical device

Using the Sim\&Size software to obtain a 3D view of the final placement of neurovascular implantable medical devices of the following types: flow diverters, intrasaccular devices, stent devices, and coils, using an actual image of the patient produced by 3D rotational angiography. Used in the treatment of intracranial aneurysm.

OTHERManual planning of endovascular procedure

Manual planning of endovascular procedure using 2D images for placement of implantable medical devices for treatment of intracranial aneurysm.

Sponsors

Sim&Cure
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frameDescription
Impact of Sim&Size use during endovascular procedure on healthcare costsFrom enrollment to the end of follow-up at 6 monthsThe main objective is to compare the use of Sim\&Size during a standard endovascular procedure versus manual planning in modifying the healthcare costs of the hospital stay. This objective will be demonstrated through the use of the following criteria: -Difference in average direct hospital costs between the two groups. The two primary outcomes measures will be analyzed in a sequential hierarchical manner
Impact of Sim&Size use during endovascular procedure on perioperative complicationsFrom enrollment to the end of follow-up at 6 monthsThe main objective is to compare the use of Sim\&Size during a standard endovascular procedure versus manual planning in modifying the rate of perioperative complications. This objective will be demonstrated through the use of the following criteria: Difference in the rate of perioperative complications. The two primary outcomes measures will be analyzed in a sequential hierarchical manner

Secondary

MeasureTime frameDescription
Demonstrate a change in average hospital costs by type of endovascular device usedFrom enrollment to end of follow-up at 6 monthsDemonstrate a change in average healthcare costs by type of endovascular device used (flow diverter, coils or intra-saccular device)
Demonstrate a change in rate of perioperative complications by type of endovascular device usedFrom surgery to the end of follow-up (6 months)Demonstrate a change in rate of perioperative complications by type of endovascular device used
Change in the rate of aneurysm(s) recurrenceAt 6 months post surgeryDemonstrate a change in the rate of aneurysm(s) recurrence at six months. Recurrence is defined as inadequate occlusion of the aneurysm on follow-up imaging at six months.
Change in operating timeFrom beginning to end of surgery (maximum of 24 hours)Demonstrate a change in operating time during the endovascular procedure (in minutes)
Change of device deployment timeFrom beginning to end of surgery (maximum of 24 hours)Demonstrate a change in the device deployment time during the endovascular procedure (in minutes)
Change in the number of endovascular devices usedFrom beginning to end of surgery (maximum of 24 hours)Demonstrate a change in the number of implantable devices used during the endovascular procedure
Change in the number of wasted implantable devicesFrom beginning to end of surgery (maximum of 24 hours)Demonstrate a change in the number of devices opened but not implanted or implanted but removed during the endovascular procedure. An opened device cannot be reused.
Change in the amount of imaging performed during the endovascular procedureFrom beginning to end of surgery (maximum of 24 hours)Change in the number of angiography and computed tomography imaging series performed during and immediately after deployment
Change in radiation exposure due to imagingFrom beginning to end of surgery (maximum of 24 hours)Demonstrate a change in radiation exposure (in mGy)
Change in duration of hospital stayFrom entering the hospital to exiting the hospital (maximum of 1 month)Demonstrate a modification of the duration of hospital stay (in days) from entering the hospital to exiting the hospital.
Change in the number of intensive care unit transfers/staysFrom the surgery to the end of the follow-up at 6 monthsDemonstrate a change in the number of intensive care unit transfers/stays after the surgery
Description of decreased healthcare costs linked to the use of Sim&SizeFrom enrollment to the end of follow-up at 6 monthsQualitative and quantitative analysis of hospital resources saved through the use of Sim\&Size
Cost/consequence analysis of the use of Sim&SizeFrom enrollment to the end of follow-up at 6 monthsCarry out a cost/consequences analysis to compare the difference in costs observed in the main criterion with the multiple clinical consequences for the patient.

Countries

France

Contacts

CONTACTAmandine RENE
a.rene@sim-and-cure.com+33783477287

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 14, 2026