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Early Versus Differed Arterial Catheterization in Critically Ill Patients With Acute Circulatory Failure:

Not Applicable
Completed
Conditions
Acute Circulatory Failure
Interventions
Procedure: Non-invasive strategy
Procedure: Control strategy
Registration Number
NCT03680963
Lead Sponsor
University Hospital, Tours
Brief Summary

The objective of the present research is a combination of a one-sided test of non-inferiority and a one-sided test of superiority. A stepped approach will be used to evaluate these hypotheses:

1. a less invasive intervention (i.e., no indwelling arterial catheter insertion until felt absolutely needed, according to consensual and predefined safety criteria) is non inferior to usual care (i.e., systematic indwelling arterial catheter insertion in the early hours of shock) in terms of mortality at day 28 (non-inferiority margin of 5%).

2. a less invasive intervention is not only non-inferior but also superior to usual care in terms of mortality.

Multi-centre, pragmatic, randomised, controlled, open, two-parallel group, non-inferiority clinical trial.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
1010
Inclusion Criteria
  • Age ≥ 18 years the day of inclusion

  • Existence of an acute circulatory failure defined by the presence of the following items 1 and 2:

    1. Persisting hypotension (systolic blood pressure less than 90 mmHg or mean arterial blood pressure less than 65 mmHg) for more than 15 min at intensive care unit admission or within the following 24 hours, OR requirement of continuous intravenous vasopressor treatment (i.e. any dose of norepinephrine / epinephrine)
    2. Presence at least one of the following signs of hypoperfusion: alteration of mental status; skin mottling; oliguria defined as a urine output < 0.5 mL/kg body weight for at least one hour; arterial lactate > 2 mmol/L; peripheral venous lactate > 3.2 mmol/L; ScvO2 <70%
  • Free express oral and informed consent of the patient or a proxy in case of impossibility for the patient to consent; emergency inclusion possible when legal representatives and patient's family are not available

  • French health insurance holder

Exclusion Criteria
  • Acute circulatory failure, as defined by items 1 and 2 in inclusion criteria list (cf. supra) present for more than 24 hours
  • Non invasive blood pressure (NIBP) device fails to display a blood pressure value, or cuff placement impossible
  • Patient for whom an Extra-Corporeal Membrane Oxygenation (ECMO) therapy (either veno-arterial or venous-venous) is already in place or is to be initiated within the next 6 hours
  • Patient treated with vasopressor doses of more than 2.5 μg/kg/min of norepinephrine tartrate plus epinephrine for at least 2 hours (i.e., for instance, more than 8 mg of norepinephrine tartrate in 50 mL at the rate of 66 mL/hour for a patient weighing 70 kg) (please note that in fact this dosage corresponds to 1.25 μg/kg/min of norepinephrine base)
  • Severe traumatic brain injury (i.e., traumatic brain injury with a Glasgow coma scale score of less than 9 before sedation)
  • Patient previously included in the trial
  • Body mass index (BMI) above 40 kg/m2
  • Pregnancy
  • Brain death
  • Moribund patient
  • Patient known, at time of inclusion, as being under guardianship, authorship or curators

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Non-invasive strategyNon-invasive strategyNon-invasive strategy consisting of blood pressure monitoring by non-invasive automated cuff measurements
Control strategyControl strategyUsual strategy of systematic indwelling arterial catheter insertion in the early hours of acute circulatory failure
Primary Outcome Measures
NameTimeMethod
All-cause mortality by 28 days after randomisationPatients will be followed from randomization to day 28
Secondary Outcome Measures
NameTimeMethod
Cumulative incidence of deathFrom inclusion through Day 90
Number of patients who underwent indwelling arterial catheter insertion, in both groupsFrom randomization to Day 28
Mean daily blood volume drawn for lab testing during intensive care unit stayFrom inclusion to Day 28
Number of blood cultures performed during intensive care unit stayFrom inclusion to Day 28
To account for the potential bias brought by deaths occurring as the result of life-sustaining treatments withdrawal/withholding, as frequently encountered in intensive care unit, the investigators will record such eventsFrom inclusion to Day 35
Evolution of daily Sequential Organ Failure Assessment (SOFA) scoreDuring the first seven days

The score (ranged from 0 to 24, the worth outcome) is based on six sub-scores (each ranged from 0 to 4, the worth outcome), one for each respiratory system, neurological, cardiovascular, hepatic, renal and coagulation.

Daily amount of intravenous fluid given for rapid vascular volume expansionFrom Day 1 to Day 7
Duration of mechanical ventilationFrom inclusion to Day 28
Ventilator-free daysFrom Day 1 to Day 28

Patients dying between randomisation and Day 28 will be assigned a 0 value; for survivors at Day 28, all the days free of invasive mechanical ventilation through an endotracheal tube within the 28-day period will be taken into account

Proportion of patients treated by renal-replacement therapyBetween Day 1 and Day 28
Renal replacement therapy-free daysFrom Day 1 to Day 28

Days without renal replacement therapy from Day 1 to Day 28 for survivors at Day 28, and from Day 1 to the date of death for patients dying before Day 28, will be taken into account

Proportion of patients treated by vasopressorBetween Day 1 and Day 28
Vasopressor therapy-free daysFrom Day 1 to Day 28

Days without vasopressor therapy from Day 1 to Day 28 for survivors at Day 28, and from Day 1 to the date of death for patients dying before Day 28, will be taken into account

Budget impact analysis of the generalization of the non-invasive strategyon a 5 years' time frame

The budget impact analysis will be to multiply the average annual cost per patient over 5 years by the number of eligible patients, taking into account a penetration rate

Pain related to the device used for blood pressure monitoringOnce a day, from inclusion to Day 28

Numerical scale assessment of patient-reported pain related to the device used for blood pressure monitoring.

Using the following 11-point numerical scales, ranged from 0 (no pain) to 10 (very important and permanent pain).

Discomfort related to device used for blood pressure monitoringOne a day, from inclusion to Day 28

Numerical scale assessment of patient-reported discomfort related to the device used for blood pressure monitoring Using the following 11-point numerical scales, ranged from 0 (no discomfort) to 10 (very important and permanent discomfort).

Daily fluid balance of intakes and lossThe first seven days

Difference between the daily amounts of:

* daily fluid administration (in milliliter): intravenous hydration, vascular filling, enteral hydration

* and the daily fluid loss (in milliliter): urine and fluid removal (during renal replacement therapy), tube drainage, estimated blood loss (laboratory test, bleeding)

Cumulative survival free of indwelling arterial catheter insertionFrom inclusion through Day 90
Number of attempts at arterial puncture during intensive care unit stayFrom inclusion to Day 28
Evolution of blood haemoglobin levelFrom Day 1 to Day 28
Evolution of haematocritFrom Day 1 to Day 28
Number of red blood cell packs transfusedFrom Day 1 to Day 28
Number of transcutaneous arterial and venous puncture for lab tests, arterial catheter insertion and set up of monitor, blood drawing from the arterial catheter or other vascular lineFrom inclusion to Day 28
Time (min) spent by nurses and physicians (min) on these tasksDuring the first three days of the intensive care unit stay

This outcome measure is planned to be collected during the first three days in a random sample of 10% of the study population and will be only considered during the medico-economic analyses.

Number of arterial and central venous catheter insertion during intensive care unit stayFrom inclusion to Day 28

Expressed as the incidence of new cases per 1000 catheter-days, including local and catheter-related bloodstream infections as consensually defined.

Numbers of arterial and central venous catheter-related infectionsDuring intensive care unit stay

Number of new cases per 1000 catheter-days

Numbers of local infections of arterial and central venousDuring intensive care unit stay

Number of new cases per 1000 catheter-days

Numbers of arterial and central venous catheter-related bloodstream infectionsDuring intensive care unit stay

Number of new cases per 1000 catheter-days

Number of bloodstream infectionsDuring intensive care unit stay
Duration of intensive care unit stayFrom inclusion to discharge
Duration of hospital stayFrom inclusion to discharge
Intensive care unit mortalityFrom inclusion to discharge
Hospital mortalityFrom inclusion to discharge
Day 90 mortalityDay 90
Number of Adverse Events of special interestFrom inclusion to Day 90
Incremental Cost-Effectiveness RatioAt Day 28

Trial Locations

Locations (1)

Intensive care

🇫🇷

Tours, France

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