Congenital heart diseaseRandomised controlled trial

Effect of Phosphodiesterase-5 Inhibition on Systemic Right Ventricular Size and Function. A Multicentre, Double-Blind, Randomized, Placebo-Controlled Trial: SERVE

Eur J Heart FailPublished

  • Randomised controlled trial
  • double-blind
  • placebo-controlled
  • multicentre
  • superiority

Authors' conclusion

In this trial in adults with systemic right ventricles, right ventricular systolic function, exercise capacity and neuro-hormonal activation remained stable over a 3-year follow-up period. No significant treatment effect of tadalafil was observed.

Study context

Population
Adults with congenital heart disease and systemic RVs83 analysed at 3 years
Participants
100 adults
Comparison
Tadalafil vs placebo
Primary endpoint
Change in RV end-systolic volume
Follow-up
3 years

Primary result

As reported in the abstract

Difference

3.4 ml

95% CI −4.3 to 11.0

P = 0.39

Tadalafil vs Placebo
difference 3.4 ml (95% CI −4.3 to 11.0); P = 0.39

Secondary outcomes

RV ejection fraction, exercise capacity, NT-proBNP

No significant changes over time; no differences between tadalafil and placebo

Original publication

Effect of Phosphodiesterase-5 Inhibition on Systemic Right Ventricular Size and Function. A Multicentre, Double-Blind, Randomized, Placebo-Controlled Trial: SERVE. Eur J Heart Fail. Published 13 June 2023. doi:10.1002/ejhf.2924

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