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. 2023 Dec 30:17:100544.
doi: 10.1016/j.resplu.2023.100544. eCollection 2024 Mar.

Route of drug administration in out-of-hospital cardiac arrest: A protocol for a randomised controlled trial (PARAMEDIC-3)

Affiliations

Route of drug administration in out-of-hospital cardiac arrest: A protocol for a randomised controlled trial (PARAMEDIC-3)

Keith Couper et al. Resusc Plus. .

Abstract

Aims: The PARAMEDIC-3 trial evaluates the clinical and cost-effectiveness of an intraosseous first strategy, compared with an intravenous first strategy, for drug administration in adults who have sustained an out-of-hospital cardiac arrest.

Methods: PARAMEDIC-3 is a pragmatic, allocation concealed, open-label, multi-centre, superiority randomised controlled trial. It will recruit 15,000 patients across English and Welsh ambulance services. Adults who have sustained an out-of-hospital cardiac arrest are individually randomised to an intraosseous access first strategy or intravenous access first strategy in a 1:1 ratio through an opaque, sealed envelope system. The randomised allocation determines the route used for the first two attempts at vascular access. Participants are initially enrolled under a deferred consent model.The primary clinical-effectiveness outcome is survival at 30-days. Secondary outcomes include return of spontaneous circulation, neurological functional outcome, and health-related quality of life. Participants are followed-up to six-months following cardiac arrest. The primary health economic outcome is incremental cost per quality-adjusted life year gained.

Conclusion: The PARAMEDIC-3 trial will provide key information on the clinical and cost-effectiveness of drug route in out-of-hospital cardiac arrest.Trial registration: ISRCTN14223494, registered 16/08/2021, prospectively registered.

Keywords: Cardiac arrest; Clinical trial protocol; Epinephrine; Intraosseous; Intravenous.

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Conflict of interest statement

The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: GDP is co-chair of the International Liaison Committee on Resuscitation (ILCOR). CD and JPN are emeritus members of the ILCOR Advanced Life Support task force. KC and HP are current members of the ILCOR Advanced Life Support task force. GDP is editor-in-chief and JPN is founding editor of Resuscitation Plus. KC is associate editor of Resuscitation Plus and guest editor for the research methodology special edition.

Figures

Fig. 1
Fig. 1
PARAMEDIC-3 trial CONOSRT diagram. Figure footer: OHCA- out-of-hospital cardiac arrest; IO- Intraosseous; IV- Intravenous.

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