
Imperative Trial
Study Objective
To assess the safety and efficacy of the Zoom System, including aspiration with 0.088” ID catheters, within 8 hours of symptom onset.
Prospective, Consent Before Groin Puncture
26 Hospitals with Patients Enrolled
211 Patients with Concomitant Aspiration1
0.088” Aspiration Indication as part of the Zoom System
Trial Results
19
Minutes
Median groin puncture to mTICI ≥ 2B2
Fastest time to reperfusion of major prospective MT trials3
4.7%
Rescue device rate
Rescue device rate to achieve 91%
final reperfusion (mTICI2b+)2, 4
Lowest rescue device rate of major prospective MT trials5
26%
Type 3 arches6
Encompassed significantly more type 3 arches than real-world anatomy7
Excellent Safety Profile
0.5%
Serious vessel injury2
0.9%
sICH2
M2 Cohort Results8
The Imperative Trial has shown excellent results, including
unparalleled safety in M2 occlusions.
69
Age, median
13
Baseline NIHSS, median
88%
Core-lab final TICI ≥ 2B
55%
mRS 0-1
1.5%
sICH
The Imperative Trial has shown excellent results, including
unparalleled safety in M2 occlusions.

Read the M2 Subgroup Analysis Published in the Journal of Neurointerventional Surgery
Note: individual trials are not directly comparable and data is presented for observational purposes only.
1 Total study population = 260 patients. Results presented include concomitant aspiration cohort only. n=211
2 Zoom System IFU (LBL002069.A), n=211
3 Major MT trials with reperfusion times reported: ARISE II, TIGER, PROST, PENUMBRA 3D, ASTER, COMPASS, DEFUSE 3, DAWN
4 IMPERATIVE Trial data cohort analysis, n=211
5 Major MT trials with rescue rates reported: Compared to: ASTER, COMPASS, ARISE II, TIGER, PROST
6 Mokin et al. INR 2025
7 Mokin et al. Neuroradiology 2021
8 Mascitelli et al. JNIS 2025