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NCT Number: NCT02547779

Isotonic Solutions and Major Adverse Renal Events Trial in the Non-Medical Intensive Care Unit (SMART-SURG)

The administration of intravenous fluids is ubiquitous in the care of the critically ill. Commonly available isotonic crystalloid solutions contain a broad spectrum electrolyte compositions including a range chloride concentrations. Recent studies have associated solutions with supraphysiologic chloride content with hyperchloremia, metabolic acidosis and renal vasoconstriction, acute kidney injury and renal replacement therapy, and increased mortality but no large, randomized-controlled trials have been conducted. SMART-SURG will be a large, cluster-randomized, multiple-crossover trial enrolling critically ill patients from the non-medical ICUs at Vanderbilt University from October 2015 until April 2017. The primary endpoint will be the incidence of Major Adverse Kidney Events in 30 days after enrollment (MAKE30 is the composite of death, new renal replacement, or persistent renal dysfunction at discharge).

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Key information

Conditions

Critical Illness Acute Kidney Injury Disease Attributes Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Kidney Diseases Male Urogenital Diseases Pathologic Processes Pathological Conditions, Signs and Symptoms Renal Insufficiency Urogenital Diseases Urologic Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Vanderbilt University Medical Center

Nashville, Tennessee, 37232-2358, United States

About this study

SMART-SURG is a large, cluster-randomized, multiple-crossover trial of 0.9% saline versus physiologically-balanced isotonic crystalloids (Lactated Ringers or Plasma-Lyte© A) with regard to the incidence of major adverse kidney events by 30 days in patients admitted to non-medical intensive care units. All patients admitted to participating non-medical intensive care units at Vanderbilt University medical center who are 18 years or older will be enrolled. The study will occur in one-month blocks. Each participating ICU will be randomized to an initial fluid group (0.9% saline or physiologically balanced isotonic crystalloids). The assigned fluid will be used exclusively for all patients receiving isotonic crystalloid for the duration of the month-long block (except in the presence of pre-specified contraindications). The assigned study fluid will switch at the end of each month-long block such that half of the months are assigned to 0.9% saline and half of the months to physiologically balance fluid. The primary endpoint will be major adverse kidney events by 30 days (MAKE30 is the composite of death, new renal replacement therapy, or persistent renal dysfunction at discharge). All aspects of study design, intervention, and data collection will be harmonized with an ongoing, independent study addressing the same question in the medical intensive care unit at Vanderbilt University during a similar study period (SMART-MED). A pre-specified data analysis plan will dictate the harmonized analysis of SMART-MED and SMART-SURG.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Admitted to a participating non-medical intensive care unit (ICU) at Vanderbilt University Medical Center

Exclusion criteria

  • Age<18 years old

Treatment and study plan

0.9% saline

Other

0.9% Saline will be used whenever an isotonic crystalloid is ordered

Other names: Normal Saline, 0.9% sodium chloride

Physiologically-balanced isotonic crystalloid

Other

Lactated Ringers or Plasma-Lyte© A will be used whenever an isotonic crystalloid is ordered

Other names: Lactated Ringers, Ringer's Lactate, Plasma-Lyte© A

Primary outcomes

  1. Major Adverse Kidney Event Within 30 Days

    Time frame: 30 days after enrollment censored at hospital discharge

    The primary outcome was the proportion of patients who met one or more criteria for a major adverse kidney event within 30 days - the composite of death, new receipt of renal-replacement therapy, or persistent renal dysfunction (defined as a final inpatient creatinine value ≥200% of the baseline value) - all censored at hospital discharge or 30 days after enrollment, whichever came first.

Secondary outcomes

  1. 30-day In-hospital Mortality

    Time frame: 30 days after enrollment censored at hospital discharge

    Death before hospital discharge, censored at 30 days after enrollment

Sponsors and collaborators

Lead sponsor

Vanderbilt University

Other

Registry information

Official study title

Isotonic Solutions and Major Adverse Renal Events Trial in Non-Medical Intensive Care Units

Acronym: SMART-SURG

Important dates

Study start
2015
Primary completion
2017
Study completion
2017
First posted
Sep 11, 2015
Registry last updated
Nov 25, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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