Is the PARADIGM-HF cohort representative of the real-world heart failure patient population?

Gustavo Rodrigues, António Tralhão, Carlos Aguiar, Pedro Freitas, António Ventosa, Miguel Mendes
Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology 2018, 37 (6): 491-496

INTRODUCTION: A new drug with prognostic impact on heart failure, sacubitril/valsartan, has been introduced in current guidelines. However, randomized trial results can be compromised by lack of representativeness. We aimed to assess the representativeness of the PARADIGM-HF trial in a real-world population of patients with heart failure.

METHODS: We reviewed the records of 196 outpatients followed in a heart failure clinic between January 2013 and December 2014. After exclusion of 44 patients with preserved ejection fraction, the inclusion and exclusion criteria of the trial were applied.

RESULTS: Of the 152 patients with systolic heart failure, 106 lacked one or more inclusion criteria and 45 had at least one exclusion criterion. Considering only patients with ejection fraction ≤35% (HFrEF) (n=88), 43 patients lacked at least one inclusion criterion and 25 patients had at least one exclusion criterion. Combining the inclusion and exclusion criteria, 24.3% of patients with systolic HF (ejection fraction ≤50%) and 42% of patients with HFrEF would be eligible for the PARADIGM-HF trial.

CONCLUSION: One in four patients with systolic HF followed in a heart failure outpatient clinic would fulfill the reference study criteria for treatment with the new drug, sacubitril/valsartan.


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