Acute cardiac care & resuscitationRandomised controlled trial

A Randomized Trial of Intravenous Amino Acids for Kidney Protection

N Engl J MedPublished

  • Randomised controlled trial
  • multinational
  • double-blind
  • placebo-controlled

Authors' conclusion

Among adult patients undergoing cardiac surgery, infusion of amino acids reduced the occurrence of AKI.

Study context

Population
Adults scheduled for cardiac surgery with cardiopulmonary bypass
Participants
3,511 adults · 22 centres · 3 countries
Comparison
IV amino acids vs placebo
  • Amino acidn = 1,759
  • Placebon = 1,752reference
Primary endpoint
Acute kidney injury (AKI) (KDIGO creatinine criteria)

Primary result

As reported in the abstract

Relative risk

0.85

95% CI 0.77–0.94

P = 0.002

Events by treatment group

Amino acid vs Placebo
RR 0.85 (95% CI 0.77–0.94); P = 0.002

Secondary outcomes

OutcomeAmino acidPlaceboRR (95% CI)
Stage 3 AKI1.6%3.0%0.56 (0.35–0.87)

Kidney-replacement therapy

Other secondary outcomes

No substantial differences between groups

Safety

Adverse events

No substantial differences between groups

Original publication

A Randomized Trial of Intravenous Amino Acids for Kidney Protection. N Engl J Med. Published 12 June 2024. doi:10.1056/nejmoa2403769

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