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

This study is currently recruiting participants. (see Contacts and Locations)
Verified April 2016 by Stanford University
Information provided by (Responsible Party):
William Kuo, Stanford University Identifier:
First received: July 6, 2010
Last updated: April 20, 2016
Last verified: April 2016
A 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 Intervention
Venous Thromboembolism
Procedure: IVC Filter Placement or Retrieval

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: FILTER - Filter Initial & Long Term Evaluation After Placement and Retrieval (Including Laser-Assisted Retrieval) Registry

Further study details as provided by Stanford University:

Estimated Enrollment: 400
Study Start Date: June 2010
Estimated Study Completion Date: June 2025
Estimated Primary Completion Date: June 2022 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
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.

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 do chart reviews over time to track progress of the filter and response to the procedure to place/remove the filter.

Participants will only be enrolled if they will be undergoing an IVC (Inferior Vena Cava) filter placement/retrieval procedure. The procedure itself is not being performed as part of the study.


Ages Eligible for Study:   Child, Adult, Senior
Genders Eligible for Study:   Both
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:

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01158482

Contact: William Kuo (650) 724-7362

United States, California
Stanford University School of Medicine Recruiting
Stanford, California, United States, 94305
Contact: William Kuo    650-724-7362   
Contact: Fizaa Ahmed    (650) 725-6409   
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
Principal Investigator: William T Kuo MD Stanford University
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: William Kuo, M.D., Stanford University Identifier: NCT01158482     History of Changes
Other Study ID Numbers: SU-06252010-6416  19051 - eProtocol  FILTER REGISTRY 
Study First Received: July 6, 2010
Last Updated: April 20, 2016
Health Authority: United States: Institutional Review Board

Additional relevant MeSH terms:
Venous Thromboembolism
Embolism and Thrombosis
Vascular Diseases
Cardiovascular Diseases processed this record on October 21, 2016