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Merit Medical Releases 12-Month Efficacy Results for the Single-Arm Arteriovenous Graft (AVG) Cohort of the WRAPSODY Arteriovenous Efficacy (WAVE) Trial

Key Takeaway: Merit Medical Systems, Inc. announced the 12-month efficacy results of the WRAPSODY Arteriovenous Graft (AVG) device from the WAVE trial. The trial included 112 patients, revealing a TLPP of 81.4% at 6 months, well above the performance target of 60%. Key findings were shared during the Charing Cross Symposium, emphasizing potential benefits for patients with limited options for AVG restoration. However, a notable decline in TLPP was observed at 12 months, dropping to 60.2%.

Market Sentiment Analysis

POSITIVE FACTORS

  • The WRAPSODY CIE device showed a significant efficacy with a TLPP of 81.4% at 6 months, exceeding performance goals.
  • Safety performance surpassed expectations, with 95.4% of patients free from adverse events.
  • The presentation of results at a prestigious symposium highlights the relevance and importance of the study findings.

CONCERNS & RISKS

  • The TLPP at 12 months dropped to 60.2%, indicating a decline in efficacy over time.
  • The access circuit primary patency (ACPP) significantly decreased from 69.2% at 6 months to just 36.2% at 12 months.

Full Press Release Details

SOUTH JORDAN, Utah, May 05, 2025 (GLOBE NEWSWIRE) -- Merit Medical Systems, Inc. (NASDAQ: MMSI), a global leader of healthcare technology, announced that the 12-month results from the single-arm cohort of the WAVE trial were presented at the annual Charing Cross Symposium held in London, England, on April 23, 2025, during the Vascular Access Masterclass session. Following the scientific podium presentation, results were presented during a Merit-sponsored symposium.
The single-arm cohort of the WAVE trial included 112 patients with an AVG who were treated with the WRAPSODY CIE device. The primary efficacy measure, 6-month TLPP, was compared to an efficacy performance goal for covered stents. At 6 months, the TLPP associated with the WRAPSODY CIE was 81.4%, a result 21.4 percentage points higher than the performance goal of 60%. The proportion of AVG patients who were free from an adverse event was higher than the safety performance goal (95.4% vs. 89.0%, p=0.016). At 12 months, the TLPP associated with the WRAPSODY CIE was 60.2%. Access circuit primary patency (ACPP) at 6 and 12 months were 69.2% and 36.2%, respectively.
“Patients with a failing AVG have limited options available to restore functionality of their access,” said Robert G. Jones, MBChB, FRCR, Consultant Interventional Radiologist at Queen Elizabeth Hospital Birmingham in Birmingham, England, and Co-Principal Investigator of the WAVE trial. “Therefore, it was exciting to present findings to my colleagues, so they are aware of WRAPSODY’s potential to improve care for this vulnerable patient population.”
“We are pleased to have the opportunity to share the positive findings of WRAPSODY with our physician partners, and we look forward to working with them to improve patient outcomes,” said Fred P. Lampropoulos, Merit’s Chairman and Chief Executive Officer.
Twelve-month findings from the randomized arm of the WAVE trial (TLPP: 70.1%; ACPP: 58.1%) were previously presented at the annual Society of Interventional Radiology meeting held in Nashville, TN. Six-month efficacy results (TLPP: 89.8%; ACPP: 72.6%) were published in Kidney International.
The Merit WRAPSODY CIE is available in Brazil and in the European Union and is approved for commercial distribution in the United States. For additional information on Merit Medical’s WAVE study, please visit: https://clinicaltrials.gov/ct2/show/NCT04540302.
Founded in 1987, Merit Medical Systems, Inc. is engaged in the development, manufacture, and distribution of proprietary disposable medical devices used in interventional, diagnostic, and therapeutic procedures, particularly in cardiology, radiology, oncology, critical care, and endoscopy. Merit serves client hospitals worldwide with a domestic and international sales force and clinical support team totaling more than 800 individuals. Merit employs approximately 7,300 people worldwide.
TRADEMARKS Unless noted otherwise, trademarks and registered trademarks used in this release are the property of Merit Medical Systems, Inc., its subsidiaries, or its licensors.
+1-801-432-2864 | sarah.comstock@merit.com
Mike Piccinino, CFA, IRC
+1-443-213-0509 | mike.piccinino@westwicke.com

Frequently Asked Questions

What were the TLPP results at 6 months for the WRAPSODY CIE?

The TLPP at 6 months was 81.4%, exceeding the 60% performance goal.

How many patients were involved in the WAVE trial's single-arm cohort?

The single-arm cohort of the WAVE trial included 112 patients.

What is the ACPP at 12 months for the WRAPSODY CIE?

The ACPP at 12 months was reported at 36.2%.

Where is the WRAPSODY CIE device currently available?

It is available in Brazil, the EU, and is approved for use in the U.S.

What event showcased the WAVE trial findings?

The findings were presented at the Charing Cross Symposium in London.

Last updated: May 5, 2025