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The ReCAna for Lower ExtremIty Venous OBstructions and In-StEnt Restenosis Registry

The ReCAna for Lower ExtremIty Venous OBstructions and In-StEnt Restenosis Registry ("The CALIBER Registry")

Status
Not yet recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07529756
Acronym
CALIBER
Enrollment
500
Registered
2026-04-14
Start date
2026-08-01
Completion date
2029-03-01
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Venous Disease, Chronic Venous Insufficiency, CVI, Embolism and Thrombosis, Thrombectomy, Thrombosis (Stent Thrombosis), Thrombosis, Venous, Venous Thrombosis

Keywords

in-stent restenosis, venous obstruction or occlusion, thrombus, emboli, CALIBER Registry, recanalization, debulking

Brief summary

The goal of this observational study is to gather additional safety and performance (effectiveness) data on the device for the treatment of symptomatic lower extremity venous obstructions and occlusions. The main questions the study aims to answer are: * What is the observed rate of safety events through the 30-day follow-up? * What is the rate of technical success (acute procedural success) achieved at the index procedure? Participants already undergoing treatment with the Recana as part of their regular medical care will be followed for 1 year.

Detailed description

The CALIBER Registry is a prospective, multi-center, non-randomized, non-interventional (observational) registry of the Recana Thrombectomy Catheter System for the treatment of symptomatic venous obstruction and occlusions. Commensurate with the continuum of care and usual practice for the follow-up of the study population, subjects are assessed at post-procedure/discharge, 30-day (30D), 180-day (180D) and 365-day (365D) post-index procedure \[reporting on these timepoints are based on standard of care clinic visits that occur closest to timepoints at 30D, 180D and 365D post-procedure\].

Interventions

DEVICERecanalization and debulking

Recanalization and debulking with the Recana Thrombectomy Catheter System

Sponsors

Intervene, Inc.
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

INCLUSION CRITERA: A. Native Vessel: 1. INC-1: Subject is 18 years or older 2. INC-2: Proximal lower extremity obstruction/occlusion involving the femoral, common femoral, iliac veins, or inferior vena cava (IVC), alone or in combination that in the opinion of the investigator, treatment with the Recana would benefit the patient 3. INC-3: Recana Thrombectomy Catheter System must enter vasculature 4. INC-4: Willing and able to provide written informed consent B. In-Stent Restenosis: 1. INC-1: Subject is 18 years or older 2. INC-2: Subjects with stents implanted greater than 6 weeks prior to index procedure 3. INC-3: Location of thrombosed stents in proximal lower extremity deep vein segments including common femoral, external iliac, common iliac vein, or inferior vena cava alone or in combination that in the opinion of the investigator treatment with the Recana would benefit the patient 4. INC-4: Recana Thrombectomy Catheter System must enter vasculature 5. INC-5: Willing and able to provide written informed consent EXCLUSION CRITERA A. Native Vessel: 1. EXC-1: IVC aplasia/hypoplasia or other congenital anatomic anomalies of the IVC or iliac veins 2. EXC-2: IVC filter in place at the time of index procedure that, in the judgment of the investigator, may interfere with the procedure 3. EXC-3: Congenital anatomic anomalies of the iliac veins that in the opinion of the investigator would preclude treatment with the Recana 4. EXC-4: Heparin allergy or hypersensitivity that cannot be adequately managed with alternate anticoagulant during or after the procedure, or prior diagnosis of HIT (Heparin-Induced Thrombocytopenia) 5. EXC-5: Severe, life-threatening allergy to iodine or contrast dye 6. EXC-6: Any contraindication to anticoagulants or antiplatelets that, in the opinion of the Investigator, cannot be medically managed throughout the study period 7. EXC-7: Life expectancy less than 1 year 8. EXC-8: Chronic non-ambulatory status such as long-term wheelchair requirement or bedridden status 9. EXC-9: Known hypercoagulable states that, in the opinion of the investigator, cannot be medically managed throughout the study period 10. EXC-10: Inability to secure venous access and cross lesion 11. EXC-11: Subject has any condition for which, in the opinion of the Investigator, participation would not be in the best interest of the subject 12. EXC-12: Current active participation in another investigational drug or device study in which the primary endpoint has not been analyzed B. In-Stent Restenosis: 1. EXC-1: Exposed stents with broken struts, significantly deformed struts, struts protruding into the vessel 2. EXC-2: Stent failure caused by undersizing or malapposition of the stent(s) \[For example, the segment of a stent in the iliac vein that is not wall apposed or cannot be apposed to the wall after balloon dilation is excluded. The segment of a stent that extends into the IVC that is not wall apposed would not be excluded.\] 3. EXC-3: Stents compressed to \<6mm that remain \<6mm after balloon dilation 4. EXC-4: IVC filter in place at the time of index procedure that, in the judgment of the investigator, may interfere with the procedure 5. EXC-5: Congenital anatomic anomalies of the iliac veins that in the opinion of the investigator would preclude treatment with the Recana 6. EXC-6: Heparin allergy or hypersensitivity that cannot be adequately managed with alternate anticoagulant during or after the procedure, or prior diagnosis of HIT (Heparin-Induced Thrombocytopenia) 7. EXC-7: Severe, life-threatening allergy to iodine or contrast dye 8. EXC-8: Any contraindication to anticoagulants or antiplatelets that, in the opinion of the Investigator, cannot be medically managed throughout the study period 9. EXC-9: Life expectancy less than 1 year 10. EXC-10: Chronic non-ambulatory status such as long-term wheelchair requirement or bedridden status 11. EXC-11: Known hypercoagulable states that, in the opinion of the Investigator, cannot be medically managed throughout the study period 12. EXC-12: Inability to secure venous access and cross lesion 13. EXC-13: Subject has any condition for which, in the opinion of the Investigator, participation would not be in the best interest of the subject 14. EXC-14: Current active participation in another investigational drug or device study in which the primary endpoint has not been analyzed

Design outcomes

Primary

MeasureTime frameDescription
Composite of Major Adverse Events (MAE)From Index Procedure (Day 0) to 30-Days Post-ProcedureComposite of Major Adverse Events (MAE) where MAE is a combined clinical endpoint of death (all-cause mortality), major bleeding, and symptomatic pulmonary embolism
Technical Success (Acute Procedural Success)Index Procedure (Day 0)* In-stent restenosis (ISR) venous segment: defined as patency ≥50% luminal diameter utilizing IVUS * Native venous segment: defined as patency ≥50% luminal diameter utilizing IVUS

Secondary

MeasureTime frameDescription
Incidence rates of the following: (1) Individual components of the MAE composite endpoint; (2) Minor bleeding; and (3) Access site complications from the index procedure (hematoma, false aneurysm, perforation)From Index Procedure (Day 0) to 30-Days Post-ProcedureIncidence rates (counts) through 30-days of 3 outcome measures: (1) Individual components of the MAE composite endpoint (death (all-cause mortality), major bleeding, and symptomatic pulmonary embolism); (2) Minor bleeding; and (3) Access site complications from the index procedure (hematoma, false aneurysm, perforation).
Incidence rate of device-related deathFrom Index Procedure (Day 0) through study completion assessed up to 365-days post-procedureIncidence rate (count) of any device-related death through 365-days post-procedure.
Incidence rate of procedure-related deathFrom Index Procedure (Day 0) through study completion assessed up to 365-days post-procedureIncidence rate (count) of any procedure-related death through 365-days post-procedure.
Patency rates of Target Venous Segment (TVS)From Index Procedure (Day 0) through study completion assessed up to 365-days post-procedureTVS patency determined by duplex ultrasound or other imaging modality preferred by investigator through 365-days post-procedure.
Incidence rate of device-related rethrombosis of the Target Venous Segment (TVS)From Index Procedure (Day 0) through study completion assessed up to 365-days post-procedureIncidence rate (count) of device-related rethrombosis of the Target Venous Segment (TVS) through 365-days post-procedure.
Incidence rate of deep venous thrombosis (DVT) outside of the Target Venous Segment (TVS)From Index Procedure (Day 0) through study completion assessed up to 365-days post-procedureIncidence rate (count) of deep venous thrombosis (DVT) outside of the Target Venous Segment (TVS) through 365-days post-procedure.
Comparison of baseline target limb edema to the 365-Days Post-Procedure scoreFrom Index Procedure (Day 0) through study completion assessed up to 365-days post-procedureTarget limb edema determined using the edema scale of the revised Venous Clinical Severity Score (rVCSS) at baseline (pre-procedure) will be compared to edema observed at 365-days post-procedure.
Comparison of baseline revised Venous Clinical Severity Score (rVCSS) to the rVCSS at 365-Days Post-ProcedureFrom Index Procedure (Day 0) through study completion up assessed to 365-days post-procedureThe revised Venous Clinical Severity Score (rVCSS) is comprised of 10 clinical categories. The scoring ranges from 0 (none) to 3 (severe) for each category, depending on the presence and severity of symptoms, signs, and the use of compression therapy. The scores are added to calculate the total rVCSS. A separate score is assigned to each leg. Total rVCSS ranges from 0 to 30, with higher numbers correlating to more severe symptoms, significant impairment to quality of life, and more advanced chronic venous insufficiency. The baseline rVCSS will be compared to the rVCSS obtained at 365-days post-procedure,
Comparison of baseline Villalta Score with the Villalta Score obtained 365-Days Post-ProcedureFrom Index Procedure (Day 0) through study completion assessed up to 365-days post-procedureThe Villalta score is a clinical tool used to assess the severity of chronic venous disease (CVD) in the setting of Post Thrombotic Syndrome (PTS). The scoring ranges from 0 (none) to 3 (severe) based on the severity of signs and symptoms. A separate score is assigned to each leg. The total score for one leg is the sum of all scores for each symptom and clinical sign for that leg, and the total Villalta score ranges from 0 to 33 with higher scores correlating to worse outcomes (more severe clinical signs and symptoms). The presence of venous ulcers indicates severe PTS. A total Villalta score of 0-4 indicates no disease (negative for PTS); a score of 5-9 indicates mild disease; a score of 10-14 indicates moderate disease; and a score of 15 or greater indicates severe disease. The baseline Villalta score will be compared to the Villalta score obtained at 365-days post-procedure.
Comparison of baseline VEINES Quality of Life (QoL)/Symptom (Sym) Scores with the VEINES Quality of Life (QoL)/Symptom (Sym) Scores obtained 365-Days Post-ProcedureFrom Index Procedure (Day 0) through study completion assessed up to 365-days post-procedureThe VEINES-QoL/Sym is a 26-item, self-administered questionnaire measuring quality of life (QoL) and symptoms (Sym) in patients with chronic venous disorders or deep vein thrombosis (DVT). It evaluates symptom severity, frequency, and daily impact, providing two distinct scores - VEINES-QoL and VEINES-Sym - with higher scores indicating better outcomes. The VEINES-QoL component evaluates the impact of venous disease on daily life, social functioning, and physical limitations. The VEINES-Sym component assesses specific symptoms, including heavy legs, aching, swelling, night cramps, heat/burning, restless legs, throbbing, itching, and tingling. Scores can range from 0-100, where higher scores indicate better outcomes (higher quality of life and less severe symptoms). The baseline VEINES-QoL/Sym scores will be compared to the VEINES-QoL/Sym scores obtained at 365-days post-procedure.

Contacts

CONTACTClinical Affairs Team
ClinSupport@intervene-med.com650-995-7137
PRINCIPAL_INVESTIGATORWilliam A Marston, MD

University of North Carolina

PRINCIPAL_INVESTIGATORKush R Desai, MD

Northwestern University

PRINCIPAL_INVESTIGATORSameh Sayfo, MD, MBA

Baylor Scott & White The Heart Hospital - Plano

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 4, 2026