Press Releases July 2, 2026 07:00 AM

Tenax Therapeutics Announces Late-Breaking Presentation of LEVEL Clinical Trial Data at ESC Congress 2026

Tenax Therapeutics to Present Phase 3 LEVEL Trial Data on Oral Levosimendan for Pulmonary Hypertension at ESC Congress 2026

By Caleb Monroe
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TENX

Tenax Therapeutics announced that topline results from its Phase 3 LEVEL clinical trial evaluating oral levosimendan in patients with pulmonary hypertension due to heart failure with preserved ejection fraction (PH-HFpEF) will be presented at the ESC Congress 2026 in August. The trial enrolled over 230 patients across the US and Canada and is powered to detect improvement in the 6-minute walk distance, a key functional endpoint. The data presentation is anticipated to provide critical insights into the efficacy of levosimendan, a novel cardiopulmonary therapy development by Tenax.

Tenax Therapeutics Announces Late-Breaking Presentation of LEVEL Clinical Trial Data at ESC Congress 2026
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Key Points

  • Tenax's Phase 3 LEVEL trial investigates oral levosimendan in PH-HFpEF patients, addressing a condition with no currently approved treatments globally.
  • The trial completed enrollment with over 230 patients and is statistically powered to detect a significant clinical benefit in exercise capacity measured by 6-minute walk distance.
  • Topline results will be presented at the prestigious ESC Congress 2026, a significant platform for cardiovascular and pulmonary innovations.

Abstract recently submitted in anticipation of initial data analysis ahead of ESC

Company expects to report topline LEVEL results in August

CHAPEL HILL, N.C., July 02, 2026 (GLOBE NEWSWIRE) -- Tenax Therapeutics, Inc. (Nasdaq: TENX) (“Tenax” or “Tenax Therapeutics” or the “Company”) announced today that results from the Phase 3 LEVEL clinical trial will be presented in a Late-Breaking Clinical Science session at the European Society of Cardiology (ESC) Congress 2026, being held August 28-31 in Munich, Germany.

In anticipation of potentially receiving topline results from the LEVEL clinical trial in time for presentation at ESC, an abstract was recently submitted. The Company now expects to report data in August 2026, and in the weeks ahead will proceed towards the planned database lock and statistical analysis.

Presentation Details

  • Title: “Levosimendan in patients with pulmonary hypertension due to heart failure with preserved ejection fraction: results of the LEVEL trial”
  • Presenter: Professor Sanjiv Shah, MD, Northwestern University
  • Presentation Date/Time: Saturday, 29 August 2026, 11:15-11:30 CEST
  • Location: Messe München GmbH, Munich, Germany

LEVEL (NCT05983250) is a registrational Phase 3 clinical trial evaluating TNX-103 (oral levosimendan) in patients with pulmonary hypertension in heart failure with preserved ejection fraction (PH-HFpEF) in the United States and Canada. Enrollment of over 230 patients was completed in March 2026. In December 2025, a prespecified Blinded Sample Size Re-estimation (BSSR) demonstrated the trial is powered at well over 90% to detect a 25-meter change in 6-minute walk distance (6MWD), the primary endpoint.

About Tenax Therapeutics

Tenax Therapeutics, Inc. is a Phase 3, development-stage pharmaceutical company using clinical insights to develop novel cardiopulmonary therapies. The Company owns global rights to develop and commercialize levosimendan, which it is developing for the treatment of PH-HFpEF, the most prevalent form of pulmonary hypertension globally, for which no product has been approved to date. For more information, visit www.tenaxthera.com. Tenax Therapeutics’ common stock is listed on The Nasdaq Stock Market LLC under the symbol “TENX”.

Caution Regarding Forward-Looking Statements

Except for historical information, all of the statements, expectations and assumptions contained in this press release are forward-looking statements. These forward-looking statements may include information concerning our clinical trials and our possible or projected future business operations. Actual results might differ materially from those explicit or implicit in the forward-looking statements. Important factors that could cause actual results to differ materially include: risks of our clinical trials, including, but not limited to, the timing, delays, costs, design, location, initiation, enrollment, and results of such trials; any delays in regulatory review and approval of product candidates in development; our estimates regarding the potential market opportunity for our product candidates; reliance on third parties, including Orion Corporation, our manufacturers and CROs; risks regarding the formulation, production, marketing, customer acceptance and clinical utility of our product candidates; the potential advantages of our product candidates; risks related to our business strategy, including the prioritization and development of product candidates; our competitive position; our ability to maintain our culture and recruit, integrate and retain qualified personnel and advisors, including our executives and on our Board of Directors; intellectual property risks; volatility and uncertainty in the global economy and financial markets in light of unexpected changes in tariffs and the possibility of pandemics, global financial and geopolitical uncertainties, including in the Middle East and the Russian invasion of and war against the country of Ukraine; risks associated with our cash needs; changes in legal, regulatory and legislative environments in the markets in which we operate, and the impact of these changes on our ability to obtain regulatory approval for our products; and other risks and uncertainties set forth from time to time in our SEC filings. Tenax Therapeutics assumes no obligation and does not intend to update these forward-looking statements except as required by law.

Contact:
Investor and Media:
Argot Partners
[email protected]


Risks

  • Clinical trial outcomes may not meet expectations and could differ materially from projections, impacting regulatory approval and commercial prospects.
  • Delays or issues in regulatory review or approval could impact time to market and investor sentiment.
  • External factors such as geopolitical uncertainties, financial market volatility, and operational risks including reliance on third-party manufacturers may affect company performance.

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