Tenax Therapeutics Announces Late-Breaking Presentation of LEVEL Clinical Trial Data at ESC Congress 2026
Tenax Therapeutics (Nasdaq: TENX) said Phase 3 LEVEL trial results for TNX-103 (oral levosimendan) in PH-HFpEF will be presented at the ESC Congress 2026 in late-breaking session. The company expects to report topline data in August 2026; enrollment of 230+ patients finished March 2026.
How this was made

The 30-second read
Why it matters
The company advances the data-disclosure pathway by submitting an abstract for ESC 2026 and reiterating an August 2026 topline expectation, setting a concrete catalyst window for clinical-trial sentiment.
Market read
This is a near-term event/timeline update for a single biotech catalyst (LEVEL topline in August; ESC late-breaking presentation), useful for timing trades around clinical-news flow.
What to watch
Traders should monitor whether the August topline timing slips (database lock/statistical analysis) and whether any BSSR/endpoint assumptions translate into clinically meaningful effect sizes.
Background
Tenax’s registrational Phase 3 LEVEL trial (TNX-103 oral levosimendan) in PH-HFpEF completed enrollment of 230+ patients in March 2026.
Ticker impact
Tenax says Phase 3 LEVEL trial results will be presented as a late-breaking session at ESC 2026 and expects topline data in August 2026.
Moderate positive bias into August as traders price the upcoming topline readout; volatility likely around abstract/database-lock milestones.
The release is company-specific and advances the clinical-data timeline (late-breaking ESC presentation; topline expected in August), but it does not provide efficacy/safety results yet.
Market effects
Adds incremental momentum for cardiopulmonary/pharma development narratives tied to levosimendan and PH-HFpEF, but without new efficacy data it’s not a sector reset.
Primarily US-listed biotech sentiment; ESC timing may drive Europe-focused attention but no direct regional macro linkage is stated.
Limited global impact beyond clinical-trial watchlists; the key is the company’s August topline window rather than a broad market event.
Counterpoint
Late-breaking presentation can still precede a mixed or underwhelming topline readout; without results, the market may overreact to scheduling rather than outcomes.
Key entities
- companyTenax Therapeutics, Inc.
Nasdaq-listed developer of levosimendan for PH-HFpEF; Phase 3 LEVEL trial topline expected in August 2026.
- clinical_trialLEVEL (NCT05983250)
Phase 3 registrational trial evaluating TNX-103 in PH-HFpEF; primary endpoint is 6-minute walk distance.
- conferenceESC Congress 2026
European Society of Cardiology meeting where LEVEL data will be presented in a late-breaking session on Aug 29, 2026.
