Comparing two methods for removing IVC filters
Official title: Prospective Comparison of Rigid Forceps Versus Endovascular Snare for Routine IVC Filter Retrieval
Run by University of Chicago · NCT04092192 · Data updated 2026-11-12
This study is testing two different ways to remove IVC filters to see which one works better and is quicker for patients who have had these filters for less than six months.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | University of Chicago Academic / other |
| Drugs / interventions | radiation |
| Locations | 1 site (Chicago, Illinois) |
| Status | Recruiting |
| Started | December 26, 2018 |
| Main results expected | January 30, 2028 |
| Study ends | January 30, 2028 |
| Registry record updated | January 7, 2026 |
| Trial ID | NCT04092192 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are non-pregnant adults aged 18 and older who require IVC filter removal within six months of implantation.
✕Probably not a fit
Patients with filters implanted for more than six months or those with specific medical conditions such as coagulopathy or central venous occlusion may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study aims to compare two common techniques for the removal of inferior vena cava (IVC) filters: the endovascular snare device and rigid forceps. By prospectively evaluating these methods, the study seeks to determine which technique offers better success rates and shorter procedure times, thereby minimizing radiation exposure. The research will be conducted at UChicago Medicine, focusing on patients who have had IVC filters implanted for less than six months. Both techniques have been previously evaluated independently, but this study will provide a direct comparison.
Why it matters
Potential benefit: If successful, this study could lead to improved IVC filter removal techniques, enhancing patient safety and outcomes.
How similar studies have gone: While both techniques have been evaluated separately in literature, this direct comparison is novel and has not been previously tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Non-pregnant females * Adult patients (age 18 years and older) * Referred to Interventional Radiology for IVC filter removal * IVC filter implanted less than 6 months with the procedure being performed at UCMC by current IR staff. * Cook Celect filter or Argon Medical Option Elite Exclusion Criteria: * Patients with outside hospital filter placement * Filters other than Cook Celect or Argon Medical Option Elite * Implantation period \>6 months * Evidence of coagulopathy (INR \<1.8, platelet count \>50k) * Clotting disorder * Central venous occlusion * Prior filter placement/removal.
Where it's running
-
UChicago Medicine
Chicago, Illinois, United States Recruiting
Study contacts
- Principal investigator: Osmanuddin Ahmed, MD — UChicago Medicine
- Study coordinator: Osmanuddin Ahmed, MD
- Email: oahmed@uchicago.edu
- Phone: 773-795-7226
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.