NCT02471638

Brief Summary

To assess the safety and performance of the PQ Bypass System to access, deliver guidewires and implant stent grafts for a percutaneous fem-pop bypass.

Trial Health

93
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
78

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2015

Longer than P75 for not_applicable

Geographic Reach
6 countries

8 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2015

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

June 11, 2015

Completed
4 days until next milestone

First Posted

Study publicly available on registry

June 15, 2015

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2018

Completed
1.8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2020

Completed
5 years until next milestone

Results Posted

Study results publicly available

May 23, 2025

Completed
Last Updated

May 23, 2025

Status Verified

May 1, 2025

Enrollment Period

3.7 years

First QC Date

June 11, 2015

Results QC Date

November 5, 2020

Last Update Submit

May 7, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Number of Lesions With Primary Patency

    Rate of primary patency. Primary patency defined as: no evidence of clinically significant stenosis (≥50%) within the stent graft or immediately above or below the treated arterial segment based on duplex ultrasound (systolic velocity ratio of \>2.5).

    6 Months

  • Number of Lesions With Any Major Adverse Event (MAE) at One Month Post-procedure

    composite endpoint of death, CD-TVR, or major target limb amputation in all patients at One-month post procedure

    One Month

Secondary Outcomes (7)

  • Number of Lesions With Each Major Adverse Event (MAE) at One Month Post-procedure

    One Month

  • Percentage of Lesions With Primary Patency at 12 Months Post-Procedure

    12 Months

  • Major Adverse Vascular Event (MAVE) Rate

    One Month

  • Number of Lesions With Symptomatic Deep Vein Thromboses in Target Limb

    One Month

  • Number of Major Adverse Events at the 12-Month Time Point

    12 Months

  • +2 more secondary outcomes

Study Arms (1)

Single arm study

EXPERIMENTAL

PQ Bypass System for Femoropopliteal Bypass to complete percutaneous fem-pop bypass

Device: PQ Bypass System for Femoropopliteal Bypass

Interventions

To access, deliver guidewires and implant stent grafts for a percutaneous fem-pop bypass.

Single arm study

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Willing and able to provide informed consent
  • Age 18 or older
  • Rutherford Classification of 3-5
  • Patent iliac and femoral arteries/veins and access vessels, of sufficient size and morphology (including tortuosity), to allow endovascular access with 8 Fr. introducer sheath
  • Femoro-popliteal lesions ≥10 cm in length considered to be:
  • Chronic total occlusion (100% stenosis)
  • Diffuse stenosis (\>50% stenosis) with moderate to heavy calcification
  • In-stent restenosis (\>50% stenosis)
  • Proximal and distal target vessels are 5.4-7.0 mm in diameter
  • Orifice and proximal 1 cm of SFA is patent
  • Patent popliteal artery 3 cm proximal to tibial plateau
  • At least 1 patent tibial artery to the foot
  • Patent femoral vein ≥ 10 mm in diameter or duplicate femoral vein
  • Subject has \> one year life expectancy

You may not qualify if:

  • Bypass length required \> 30 cm
  • History of deep vein thrombosis
  • Has a known hypersensitivities, allergies or contraindications to: nitinol, PTFE; aspirin, heparin, antiplatelet, anticoagulant or thrombolytic therapy; or anticoagulation or contrast media that is not amenable to pre-treatment;
  • Has a known history of intracranial bleeding or aneurysm, myocardial infarction or stroke within the last 12 months
  • Pregnant or nursing
  • Untreated flow-limiting aortoiliac occlusive disease
  • Has renal failure (eGFR \< 30mL/min)
  • Major distal amputation (above the transmetatarsal) in the study or non-study limb
  • Patient has had a revascularization procedure on the target limb within 30 days
  • Patient has a planned amputation of the target limb
  • Previous bypass surgery on the target limb
  • Patient is participating in another clinical study for which follow-up is currently on going.
  • Patient has a condition that in the view of the investigator precludes participation in this study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (8)

Universidad Católica de Chile

Santiago, Chile

Location

University of Leipzig Medical Centre

Leipzig, 04103, Germany

Location

Ospedale San Raffaele

Milan, 20132, Italy

Location

Stradins University Hospital

Riga, LV-1002, Latvia

Location

Vascular Service

Auckland, 1023, New Zealand

Location

Gdansk Medical University

Gdansk, Poland

Location

Poznan University of Medical Sciences

Poznan, 61-848, Poland

Location

Institute of Haematology Medicine Indira Gandhi

Warsaw, Poland

Location

Related Publications (2)

  • Schneider PA, Krievins DK, Halena G, Schmidt A, Lyden S, Lee V, Hu M, Adelman M. Venous outcomes at 1 year after using the femoral vein as a conduit for passage of percutaneous femoropopliteal bypass. J Vasc Surg Venous Lymphat Disord. 2021 Sep;9(5):1266-1272.e3. doi: 10.1016/j.jvsv.2020.12.080. Epub 2021 Jan 8.

  • Krievins DK, Halena G, Scheinert D, Savlovskis J, Szopinski P, Kramer A, Ouriel K, Nair K, Holden A, Schmidt A. One-year results from the DETOUR I trial of the PQ Bypass DETOUR System for percutaneous femoropopliteal bypass. J Vasc Surg. 2020 Nov;72(5):1648-1658.e2. doi: 10.1016/j.jvs.2020.02.043. Epub 2020 Apr 8.

MeSH Terms

Conditions

Peripheral Arterial Disease

Condition Hierarchy (Ancestors)

AtherosclerosisArteriosclerosisArterial Occlusive DiseasesVascular DiseasesCardiovascular DiseasesPeripheral Vascular Diseases

Results Point of Contact

Title
Tammy Stiver
Organization
Endologix

Study Officials

  • Dierk Scheinert, PhD

    University of Leipzig

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
LTE60
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 11, 2015

First Posted

June 15, 2015

Study Start

January 1, 2015

Primary Completion

September 1, 2018

Study Completion

June 1, 2020

Last Updated

May 23, 2025

Results First Posted

May 23, 2025

Record last verified: 2025-05

Data Sharing

IPD Sharing
Will not share

Locations