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Assessing the WAVE Extra Soft Coil in Intracranial Aneurysms and Comparing Imaging Modalities

A Prospective, Multicenter Study Assessing the Embolization of Intracranial Aneurysms Using WAVE™ Extra Soft Coils, a Part of the Penumbra SMART COIL® System

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04106583
Acronym
SURF
Enrollment
572
Registered
2019-09-27
Start date
2019-11-05
Completion date
2023-08-02
Last updated
2025-03-04

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

Conditions

Aneurysm, Brain

Brief summary

The objective of this study is to demonstrate the safety and efficacy of the Penumbra SMART COIL® System, including the WAVE™ Extra Soft Coils (WAVE) as a fill and finish coil, in the treatment of intracranial aneurysms. Imaging will be analyzed by an independent core lab to assess aneurysm occlusion rates and perform a comparative analysis between imaging modalities.

Interventions

DEVICEWAVE, as part of the SMART COIL System

WAVE, as part of the SMART COIL System

Sponsors

Penumbra Inc.
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

* Patient age ≥ 18 years * Patient having embolization of intracranial aneurysms * WAVE Extra Soft Coil is final finishing coil * Penumbra SMART COIL System accounts for at least 75% of total number of coils implanted * Informed consent obtained per Institutional Review Board/Ethics Committee (IRB/EC) requirements

Exclusion criteria

* Life expectancy less than 1 year * Patient previously enrolled in the SURF Study * Known multiple intracranial aneurysms requiring treatment during index procedure * Patient is unwilling or unable to comply with protocol follow up schedule and/or based on the Investigator's judgment the patient is not a good study candidate * Participation in an interventional drug or device study that may confound the results of the study

Design outcomes

Primary

MeasureTime frameDescription
Efficacy: Adequate OcclusionThrough Study Completion, An Average of 1 YearAdequate occlusion defined as Raymond-Roy Class I and II at final follow-up Raymond-Roy Class grading ranges I to III higher values represent a worse outcome.
Safety: Serious Adverse Events (SAEs)Up to 24 Hours Post-ProcedureThe primary safety endpoints are SAEs within 24 hours post-procedure
Safety: Device-Related SAEThrough Discharge, up to 7 Days Post-ProcedureDevice-related SAE up to 7 days or discharge

Secondary

MeasureTime frameDescription
Efficacy: Aneurysm Recanalization or Progressive ThrombosisFrom Immediate Post Procedure Through Study Completion, An Average of 1 YearAneurysm recanalization or progressive thrombosis from post procedure to final follow-up
Safety: Major Ipsilateral StrokeThrough Study Completion, An Average of 1 YearOccurrence of Major Ipsilateral Stroke
Efficacy: Occlusion RateImmediate Post-ProcedureImmediate post-procedure occlusion rates: Class 1 - Complete occlusion Class 2 - Residual neck Class 3 - Residual aneurysm The classification of angiographic results was adopted from Roy, Milot, and Raymond. Stroke 2001;32:1998-2004
Safety: Morbidity and MortalityThrough Study Completion, An Average of 1 YearAll-cause morbidity and mortality at final follow-up
Safety: Device-Related SAEThrough Study Completion, An Average of 1 YearDevice related SAE at final follow-up
Efficacy: Retreatment RateThrough Study Completion, An Average of 1 YearRetreatment rate at final follow-up
Efficacy: Aneurysm Occlusion Raymond IImmediate Post-TreatmentRaymond-Roy Class grading ranges I to III higher values represent a worse outcome.

Countries

Canada, Germany, Italy, Spain, Switzerland, United States

Participant flow

Participants by arm

ArmCount
Single Arm
Single Arm - Patients with intracranial aneurysms treated with WAVE, as part of the Penumbra SMART COIL System
572
Total572

Baseline characteristics

CharacteristicSingle Arm
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
216 Participants
Age, Categorical
Between 18 and 65 years
356 Participants
Age, Continuous59.5 years
STANDARD_DEVIATION 12.88
Body Mass Index28.6 kg/m2
STANDARD_DEVIATION 7.69
Ethnicity (NIH/OMB)
Hispanic or Latino
79 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
389 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
57 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
18 Participants
Race (NIH/OMB)
Black or African American
83 Participants
Race (NIH/OMB)
More than one race
6 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
43 Participants
Race (NIH/OMB)
White
374 Participants
Sex: Female, Male
Female
415 Participants
Sex: Female, Male
Male
157 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
36 / 572
other
Total, other adverse events
20 / 572
serious
Total, serious adverse events
140 / 572

Outcome results

Primary

Efficacy: Adequate Occlusion

Adequate occlusion defined as Raymond-Roy Class I and II at final follow-up Raymond-Roy Class grading ranges I to III higher values represent a worse outcome.

Time frame: Through Study Completion, An Average of 1 Year

Population: The analysis population (ITT) contains 396 evaluable participants.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Single ArmEfficacy: Adequate Occlusion366 Participants
Primary

Safety: Device-Related SAE

Device-related SAE up to 7 days or discharge

Time frame: Through Discharge, up to 7 Days Post-Procedure

Population: The analysis population (ITT) contains 567 evaluable participants.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Single ArmSafety: Device-Related SAE6 Participants
Primary

Safety: Serious Adverse Events (SAEs)

The primary safety endpoints are SAEs within 24 hours post-procedure

Time frame: Up to 24 Hours Post-Procedure

Population: The analysis population (ITT) contains 572 evaluable participants.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Single ArmSafety: Serious Adverse Events (SAEs)53 Participants
Secondary

Efficacy: Aneurysm Occlusion Raymond I

Raymond-Roy Class grading ranges I to III higher values represent a worse outcome.

Time frame: Immediate Post-Treatment

Population: The analysis population (ITT) contains 570 evaluable participants.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Single ArmEfficacy: Aneurysm Occlusion Raymond I361 Participants
Secondary

Efficacy: Aneurysm Occlusion Raymond I

Raymond-Roy Class grading ranges I to III higher values represent a worse outcome.

Time frame: Through Study Completion, An Average of 1 Year

Population: The analysis population (ITT) contains 396 evaluable participants.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Single ArmEfficacy: Aneurysm Occlusion Raymond I313 Participants
Secondary

Efficacy: Aneurysm Recanalization or Progressive Thrombosis

Aneurysm recanalization or progressive thrombosis from post procedure to final follow-up

Time frame: From Immediate Post Procedure Through Study Completion, An Average of 1 Year

Population: The analysis population (ITT) contains 395 evaluable participants.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Single ArmEfficacy: Aneurysm Recanalization or Progressive ThrombosisProgressive Thrombosis110 Participants
Single ArmEfficacy: Aneurysm Recanalization or Progressive ThrombosisStable Raymond-Roy Occlusion235 Participants
Single ArmEfficacy: Aneurysm Recanalization or Progressive ThrombosisRecanalization50 Participants
Secondary

Efficacy: Occlusion Rate

Immediate post-procedure occlusion rates: Class 1 - Complete occlusion Class 2 - Residual neck Class 3 - Residual aneurysm The classification of angiographic results was adopted from Roy, Milot, and Raymond. Stroke 2001;32:1998-2004

Time frame: Immediate Post-Procedure

Population: The analysis population (ITT) contains 570 evaluable participants.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Single ArmEfficacy: Occlusion RateParticipants with Raymond-Roy Occlusion Class I361 Participants
Single ArmEfficacy: Occlusion RateParticipants with Raymond-Roy Occlusion Class II137 Participants
Single ArmEfficacy: Occlusion RateParticipants with Raymond-Roy Occlusion Class III72 Participants
Secondary

Efficacy: Retreatment Rate

Retreatment rate at final follow-up

Time frame: Through Study Completion, An Average of 1 Year

Population: The analysis population (ITT) contains 457 evaluable participants.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Single ArmEfficacy: Retreatment Rate45 Participants
Secondary

Safety: Device-Related SAE

Device related SAE at final follow-up

Time frame: Through Study Completion, An Average of 1 Year

Population: The analysis population (ITT) contains 572 evaluable participants.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Single ArmSafety: Device-Related SAE6 Participants
Secondary

Safety: Major Ipsilateral Stroke

Occurrence of Major Ipsilateral Stroke

Time frame: Through Study Completion, An Average of 1 Year

Population: The analysis population (ITT) contains 572 evaluable participants.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Single ArmSafety: Major Ipsilateral Stroke10 Participants
Secondary

Safety: Morbidity and Mortality

All-cause morbidity and mortality at final follow-up

Time frame: Through Study Completion, An Average of 1 Year

Population: The analysis population (ITT) contains 572 evaluable participants. Morbidity through Final Follow-Up was reported in 106 out of 572 participants, and One-Year Mortality was reported in 36 out of 572 participants.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Single ArmSafety: Morbidity and Mortality123 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026