Valvular & structural heart disease

Tenecteplase vs Alteplase in Mechanical Prosthetic Heart Valve Thrombosis: The TENET Randomized Clinical Trial

JAMA CardiolPublished Randomised controlled trial

Primary result · Complete thrombolytic success (primary efficacy end point)Result — go to the resultRelative risk 1.18 95% CI 1.03–1.39

Authors' conclusion

Tenecteplase may be a safe and effective alternative to alteplase in patients presenting with obstructive PVT.

Study context

Population
Consecutive adults with obstructive prosthetic valve thrombosis (PVT) of a mechanical prosthetic valve, single tertiary centre in India, October 2022 to August 2024
Participants
83 adults
Comparison
Tenecteplase vs alteplase
  • Tenecteplasen = 40
  • Alteplasen = 43reference
Primary endpoint
Complete thrombolytic success and incidence of major complications
Methodological detailsopen-label, parallel-group, non-inferiority, single-centre
  • Open-label
  • Parallel-group
  • Non-inferiority
  • Single-centre

Primary result

As reported in the abstract

Complete thrombolytic success (primary efficacy end point)

Relative risk

1.18

95% CI 1.03–1.39

P = 0.02 for non-inferiority

Events by treatment group

Tenecteplase vs Alteplase
RR 1.18 (95% CI 1.03–1.39); P for non-inferiority = 0.02

Further findings

Duration of hospital stay

P < 0.001

Complete success with first administered dose

Higher with tenecteplase

Safety

Major and minor adverse events

Similar in the two groups

Original publication

Tenecteplase vs Alteplase in Mechanical Prosthetic Heart Valve Thrombosis: The TENET Randomized Clinical Trial. JAMA Cardiol. Published 1 January 2026. doi:10.1001/jamacardio.2025.4369

Summarised from the published abstract; every number is checked against it

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