Respiratory failure & ventilation

Angiotensin-(1–7) infusion in COVID-19 patients admitted to the intensive care units (ICU): a seamless phase 1–2 randomized clinical trial

Ann Intensive CarePublished Seamless phase 1–2 randomised controlled trial

  • prematurely stopped due to low recruitment rate
  • Between August 2020 and July 2021; stopped prematurely due to low recruitment rate

Authors' conclusion

The main findings of our study indicate that continuous intravenous infusion of Angiotensin-(1-7) at 10 mcg/Kg day in COVID-19 patients admitted to the ICU with severe pneumonia is safe.

Study context

Population
COVID-19 patients admitted to the ICU28 Phase 1, 79 Phase 2
Comparison
IV Angiotensin- plus standard of care vs controls
Primary endpoint
Phase 2: number of oxygen free days (OFDs); Phase 1: rate of serious adverse events (SAEs)
Follow-up
Day 28
Methodological detailsinvestigator-initiated, Phase 1 open label, Phase 2 double-blind, two ICUs
  • Investigator-initiated
  • Phase 1 open label
  • Phase 2 double-blind
  • Two ICUs

Primary result

As reported in the abstract

OFDs (Phase 2)

P = 0.15

Further findings

OutcomeAbsolute difference (days) (95% CI)P value
OFDs, pooled Phase 1-2 intention to treat analysisSignificantly higher in treated patients · pooled intention to treat−5 (0–7)P = 0.04

Safety

Serious adverse events (SAEs) possibly related to infusion (Phase 1) — Angiotensin-(1-7)
1 events
SAEs possibly related to infusion (Phase 1) — Bradycardia, justifying discontinuation of the infusion
1

Original publication

Angiotensin-(1–7) infusion in COVID-19 patients admitted to the ICU: a seamless phase 1–2 randomized clinical trial. Ann Intensive Care. Published 4 September 2024. doi:10.1186/s13613-024-01369-0

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