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Filter Initial & Long Term Evaluation After Placement and Retrieval Registry (FILTER)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT01158482
Recruitment Status : Recruiting
First Posted : July 8, 2010
Last Update Posted : May 12, 2020
Information provided by (Responsible Party):
William Kuo, Stanford University

Brief Summary:
A prospective data registry for all patients who undergo IVC (Inferior Vena Cava) filter placement or retrieval at Stanford. Potential enrollees will already be undergoing the procedure. If patients are willing, they will be prospectively enrolled prior to the procedure. As part of the study, chart and clinical data reviews will be used to track patient progress and response to the treatment.

Condition or disease Intervention/treatment
Venous Thromboembolism Procedure: IVC Filter Placement or Retrieval

Detailed Description:

Patient clinical data will be used in a clinical registry. Before a patient is to undergo their initial procedure for filter placement/retrieval, we will approach them for consent to participate in the study. If patients consent, we will follow clinical data from the procedure, and perform prospective follow-up over time to track clinical response and effects of the placement or removal procedure.

Various real-world protocols involving advanced filter removal (including laser-assisted filter removal) will be investigated by conducting registry-based clinical trials.

Participants will only be enrolled if they will be undergoing an IVC (Inferior Vena Cava) filter placement/retrieval procedure.

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Study Type : Observational
Estimated Enrollment : 5000 participants
Observational Model: Case-Only
Time Perspective: Prospective
Official Title: FILTER - Filter Initial & Long Term Evaluation After Placement and Retrieval (Including Laser-Assisted Retrieval) Prospective Registry
Study Start Date : June 2010
Estimated Primary Completion Date : June 2025
Estimated Study Completion Date : June 2030

Group/Cohort Intervention/treatment
IVC Filter Placement or Removal
Patients undergoing IVC filter placement and/or IVC filter removal at Stanford Medical Center.
Procedure: IVC Filter Placement or Retrieval
An IVC Filter will be placed or removed using endovascular techniques.

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
No specific criteria. Anyone who will be undergoing IVC Filter Placement/Retrieval will be eligible.

Inclusion Criteria:

  • Participants are adults, 18 years old or older
  • Participants will be undergoing a procedure to have an IVC filter placed or removed

Exclusion Criteria:


Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01158482

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Contact: William Kuo (650) 724-7362

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United States, California
Stanford University School of Medicine Recruiting
Stanford, California, United States, 94305
Contact: William Kuo    650-724-7362   
Principal Investigator: William T Kuo MD         
Sub-Investigator: Dr. Lawrence (Rusty) Hofmann MD         
Sub-Investigator: Daniel Yung-Ho Sze         
Sub-Investigator: David Hovsepian         
Sub-Investigator: Nishita N. Kothary         
Sub-Investigator: Dr. John D Louie         
Sub-Investigator: Gloria Hwang         
Sponsors and Collaborators
Stanford University
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Principal Investigator: William T Kuo MD Stanford University
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: William Kuo, M.D., Stanford University Identifier: NCT01158482    
Other Study ID Numbers: SU-06252010-6416
19051 - eProtocol
First Posted: July 8, 2010    Key Record Dates
Last Update Posted: May 12, 2020
Last Verified: May 2020
Additional relevant MeSH terms:
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Venous Thromboembolism
Embolism and Thrombosis
Vascular Diseases
Cardiovascular Diseases