Concentric Retriever Device (CRD) in Acute Ischemic Stroke

ClinicalTrials.gov ID: NCT00203710

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Official title

A Single-Center Controlled Registry to Evaluate the Concentric Retriever System for the Treatment of Stroke

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The primary purpose is to study the safety and effectiveness of the Concentric Retriever Device(CRD)in ischemic stroke patients who undergo clot retrieval with the CRD within 8 hours of stroke symptom onset. The CRD has been approved by the U.S. Food and Drug Administration to retrieve foreign bodies (such as pieces of metal) from blood vessels in the body. The CRD is a small metal wire with a loop at the end (like a corkscrew) that removes clots from arteries and thereby restores blood flow to the brain. Prior versions of the CRD may have been too soft to pull out clots, just as a corkscrew that is too soft would not pull out corks. The current version of the CRD is not as soft and may be more effective in retrieving clots. Hypothesis: By restoring blood flow to the brain, stroke symptoms may get better or the stroke may be prevented from getting worse.

Study identification

NCT ID: NCT00203710
Recruitment status: Completed
Study type: Interventional
Phase: Not applicable
Lead sponsor: Sidney Starkman; Other
Enrollment: 50 participants

Conditions and interventions

Conditions

Acute Ischemic Stroke

Interventions

Concentric Retriever Device Device

Device

Eligibility (public fields only)

Age range: 18 Years and older
Sex: All
Healthy volunteers: Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: Oct 2003 (Type not available)
Primary completion: Sep 2004 (Actual)
Completion: Sep 2004 (Actual)
Last update posted: Dec 14, 2015

2003 – 2004

United States locations

U.S. sites: 1
U.S. states: 1
U.S. cities: 1

Facility	City	State	ZIP	Site status
University of California, Los Angeles	Los Angeles	California	90024	—

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT00203710, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do: No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from: Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh: Last update posted Dec 14, 2015 · Synced Nov 15, 2026