NCT07464847

Brief Summary

The goal of this prospective, observational study is to evaluate the long-term occlusion rates and safety of the Penumbra PC400 coil in the treatment of ruptured and unruptured intracranial aneurysms in adult subjects ages 18-80. Specifically, the study aims to analyze rate of death, stroke, neurological death, or rebleeding associated with the treatment of intracranial aneurysm with the PC400 coil. Participants will undergo standard of care treatment and follow up for their aneurysm treatment, and participating sites will collect procedural and follow up data.

Trial Health

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Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
43mo left

Started May 2026

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress2%
May 2026Dec 2029

First Submitted

Initial submission to the registry

February 27, 2026

Completed
12 days until next milestone

First Posted

Study publicly available on registry

March 11, 2026

Completed
2 months until next milestone

Study Start

First participant enrolled

May 1, 2026

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2029

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2029

Last Updated

March 11, 2026

Status Verified

March 1, 2026

Enrollment Period

3.5 years

First QC Date

February 27, 2026

Last Update Submit

March 9, 2026

Conditions

Keywords

Intracranial aneurysmCoiling

Outcome Measures

Primary Outcomes (3)

  • Procedure- or disease-related death or major stroke

    Procedure- or disease-related death or major stroke within 30 days of treatment

    30 days post-procedure

  • Stroke, neurological death, or rebleeding from target aneurysm

    Major ipsilateral stroke, neurological death or rebleeding from the target aneurysm during the 18-month follow-up period

    18 months post procedure

  • Adequate angiographic occlusion

    Adequate angiographic occlusion at 18 ± 6 months without interim retreatment secondary to aneurysm recurrence or rebleed of the target aneurysm. This will be assessed by the core lab using digital subtraction angiograms (DSA).

    18 months post-procedure

Secondary Outcomes (6)

  • 30-day Modified Rankin Scale (mRS)

    30 days post procedure

  • 18-month Modified Rankin Scale (mRS)

    18 months post-procedure

  • Packing density

    Immediately post-procedure

  • Retreatment rate due to recurrence

    18 months post-procedure

  • Angiographic occlusion at 18 months

    18 months post-procedure

  • +1 more secondary outcomes

Other Outcomes (3)

  • Procedural duration

    Procedural

  • Number of coils

    Procedural

  • Adverse events related to the coils/coiling procedure

    Up to 18 months following the procedure

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All eligible subjects presenting to a participating study site will be considered for enrollment. Up to 100 patients ≥ 18 and ≤ 80 years presenting with ruptured or unruptured saccular aneurysms who meet all eligibility criteria will be enrolled. Enrolled subjects must be treated with Penumbra PC400 coils used in any combination comprising a minimum of 80% total coil length used.

You may qualify if:

  • Subject is ≥ 18 and ≤ 80 years of age.
  • Subject has a previously untreated, ruptured or unruptured, saccular intracranial aneurysm 5mm or more in diameter for which the clinical decision to treat with Penumbra PC400 embolization coils has been made independent of the decision to enroll the subject in the study described in this protocol.
  • The decision to undergo the coiling procedure is made independently of and prior to participation in the research.
  • Subject has a baseline Hunt and Hess Score of I, II, or III.
  • Subject must be considered by the treating physician to be available for and able to complete all follow-up visits.
  • Subject has not been previously entered into this study.

You may not qualify if:

  • Subject is \< 18 or \> 80 years of age.
  • Subject has a baseline Hunt and Hess score of IV or V.
  • Target aneurysm is dissecting, fusiform, blister-like, mycotic, tumoral, or AVM related.
  • Target aneurysm maximum diameter is \<5mm
  • Target aneurysm was previously treated via clipping or coiling.
  • Target aneurysm is deemed by the treating physician to be unsuitable for coiling or unlikely to be successfully treated by endovascular techniques.
  • Target aneurysm has not been confidently determined by the treating physician to be the source of SAH.
  • Planned use of a flow diverter (Surpass, Pipeline, Silk, FRED, p64, etc.) or intrasaccular device (WEB, Artis, Medina, etc.) as a component of the target aneurysm treatment plan.
  • Intended use of a coil-assist stent as a component of the target aneurysm treatment plan, unless stent is used for bailout purposes.
  • Subject has a known, untreatable hypersensitivity to contrast dye, iodine, hydrogel, or any other component of the treatment device.
  • Subject has a contraindication to heparin or aspirin.
  • Subject has vascular anatomy/tortuosity preventing access to the target aneurysm.
  • Subject is unable to undergo DSA or DSA is determined unsuitable or outside standard of care by the treating physician.
  • Subject has a serious or life-threatening comorbidity that could confound study results.
  • Subject is at high risk of noncompliance due to a history of substance abuse, psychosocial issues, etc.
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Semmes Murphey Clinic

Memphis, Tennessee, 38120, United States

Location

Related Publications (3)

  • 3. Mascitelli JR, Polykarpou MF, Patel AA, Kamath AA, Moyle H, Patel AB. Initial experience with Penumbra Coil 400 versus standard coils in embolization of cerebral aneurysms: a retrospective review. J Neurointerv Surg. 2013 Nov;5(6):573-6.

    BACKGROUND
  • Berge J, Gariel F, Marnat G, Dousset V. PC400 volumetric coils minimize radiation, reduce procedure time and optimize packing density during endovascular treatment in medium sized cerebral aneurysms. J Neuroradiol. 2016 Feb;43(1):37-42.

    BACKGROUND
  • Kulcsár Z, Wanke I, Rüfenacht D, Wetzel SG, Göricke S, Kolia K, Quarfordt S, Calvert J, Hawk H, Baxter B. Safety and effectiveness of large volume coils in the treatment of small aneurysms. J Neurointerv Surg. 2016 Dec;8(12):1260-1263.

    BACKGROUND

MeSH Terms

Conditions

Intracranial AneurysmAneurysm

Condition Hierarchy (Ancestors)

Intracranial Arterial DiseasesCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular Diseases

Study Officials

  • Nitin Goyal, MD

    Semmes Murphey Clinic

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Target Duration
18 Months
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 27, 2026

First Posted

March 11, 2026

Study Start

May 1, 2026

Primary Completion (Estimated)

November 1, 2029

Study Completion (Estimated)

December 1, 2029

Last Updated

March 11, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will share

IPD to be shared will include all IPD that underlie results of the publication.

Shared Documents
STUDY PROTOCOL, SAP, CSR
Time Frame
The IPD will be available following study completion estimated to be in 2029 with no set end date.
Access Criteria
A designated biostatistician will access study IPD. Access will be established through secure electronic transfer. Following publication, results and supporting information will be established on the ClinicalTrials.gov website.

Locations