Effect of Carvedilol, Ivabradine or their combination on exercise capacity in patients with Heart Failure (the CARVIVA HF trial)

Maurizio Volterrani, Gennaro Cice, Giuseppe Caminiti, Cristiana Vitale, Salvatore D'Isa, Pasquale Perrone Filardi, Flavio Acquistapace, Giuseppe Marazzi, Massimo Fini, Giuseppe M C Rosano

Research output: Contribution to journalArticlepeer-review


Aim: Patients with heart failure (HF) have reduced exercise capacity. The beneficial effect of beta-blocker on prognosis is not matched by an impact on exercise capacity and quality of life. We performed a randomised open blinded endpoint study to assess the effect of heart rate reduction with carvedilol, ivabradine, and their combination on exercise capacity in HF patients receiving maximal dose of ACE inhibitor. Methods and results: After a run-in phase patients were randomly allocated to 3 groups: carvedilol up to 25 mg bid (n = 38); ivabradine up to 7.5 mg bid (n = 41); and carvedilol/ivabradine up to 12.5/7.5 mg bid (n = 42). The maximal dose of study treatment was more frequently tolerated in patients receiving ivabradine (36/41) than in those receiving carvedilol (18/38) or combination therapy (32/42) (P <0.01 ivabradine versus carvedilol). Heart rate was reduced in all three groups, but to a greater extent by the combination. The distance walked on the 6-min walking test and the exercise time on MVO 2 test significantly improved in the ivabradine and combination groups (both P <0.01 versus baseline), as did peak VO 2 and VAT (P <0.01 for ivabradine and P <0.03 for combination versus carvedilol, respectively). No changes in these parameters were found with carvedilol. The patients receiving ivabradine or the combination had better quality of life (P <0.01 versus baseline for ivabradine and P <0.02 for combination), versus no change with carvedilol. Conclusion: Ivabradine alone or in combination with carvedilol is more effective than carvedilol alone at improving exercise tolerance and quality of life in HF patients.

Original languageEnglish
Pages (from-to)218-224
Number of pages7
JournalInternational Journal of Cardiology
Issue number2
Publication statusPublished - Sep 1 2011


  • Beta-blocker
  • Exercise capacity
  • Heart failure
  • Ivabradine
  • Quality of life
  • Rehabilitation

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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