Endologix announces results of pooled analysis of DETOUR1 and DETOUR2 Studies at VIVA 2023

PTAB using the Detour system

Endologix has announced results from a pooled analysis of the DETOUR1 and DETOUR2 studies evaluating percutaneous transmural arterial bypass (PTAB) with the Detour system.

A press release details that PTAB with the Detour system offers a novel approach to treating complex peripheral arterial disease (PAD), enabling physicians to bypass lesions in the superficial femoral artery (SFA), by using conduits routed through the femoral vein via a transmural passage, to restore blood flow to the leg. This approach is effective for patients with long lesions (20–46cm in length).

Data were aggregated from DETOUR1 and DETOUR2, both of which were prospective, single-arm, multicentre, international studies designed to evaluate the Detour system. Inclusion criteria and prespecified endpoints were similar. Both studies utilised imaging core lab and independent adverse event adjudication. Endpoints included freedom from major adverse events (MAEs) through 30 days, symptomatic deep vein thrombosis (DVT), and length of stay. For the pooled analysis, primary patency was defined as freedom from target vessel revascularisation (TVR).

The results from the 275 pooled patients were presented at VIVA 2023 (30 October–2 November, Las Vegas, USA) by one of the study’s principal investigators, Sean Lyden (Cleveland Clinic, Cleveland, USA).

The presented results included the following:

  • Primary patency, defined as freedom from TVR, was 79.1% at one year and 68.1% through two years
  • Freedom from MAEs through 30 days was 97.8%
  • Clinical success rate was 92.9%, 96%, and 95.3% at 30 days, one year and two years, respectively
  • Symptomatic DVT was 3.3% and pulmonary embolism (PE) rate was 0%, respectively through the two-year time point
  • Average length of hospital stay was 1.3 days.
  • Ninety-four percent of the patients had chronic total occlusions of the SFA, with a mean lesion length of 31.6cm

“These results not only demonstrate the clinical utility of this therapeutic strategy in managing long complex femoropopliteal lesions but also highlight that PTAB with the Detour system achieves similar results to open surgical prosthetic femoropopliteal bypass without the need for general anaesthesia, long length of stay, and high rate of complications. We eagerly await more comprehensive data from broader real-world settings to further corroborate these findings,” stated Lyden.

“We are pleased to present the combined results of the DETOUR1 and DETOUR2 studies. The data are congruent between the studies and strengthen our confidence in the transformative potential of the Detour system,” said Matt Thompson, president and CEO of Endologix. “The DETOUR system offers a compelling alternative for addressing long, complex femoropopliteal lesions. As we look ahead, we are eager to bring PTAB using the Detour system to patients with complex PAD.”


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