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Steroid Dosing by bioMARker Guided Titration in Critically Ill Patients With Pneumonia

SMART Trial: Steroid Dosing by bioMARker Guided Titration in Critically Ill Patients With Pneumonia

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03852537
Enrollment
44
Registered
2019-02-25
Start date
2019-12-02
Completion date
2020-11-17
Last updated
2021-09-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pneumonia

Keywords

Pneumonia, steroid, COVID-19, SARS CoV-2

Brief summary

This research study is being done to determine the appropriate dose of steroids and the appropriate duration for steroid use to reduce inflammation in severe pneumonia needing a form of breathing support. This study seeks to compare usual care to a unique (individualized) dosing strategy. A marker of inflammation in the body will be measured in blood samples. This marker of inflammation is called C- reactive protein. The overall goal is to identify patients that will benefit most from steroid use and decrease use of steroids. The information collected from this study may provide information that may improve management of patients with severe pneumonia requiring a form of breathing support.

Detailed description

This is a two-arm single-center pilot phase II clinical trial. Patients will be screened at the time of hospital admission and will be required to be enrolled within the clinical trial within 48 hours of hospital admission. In the individualized, biomarker-concordant arm, all patients will receive steroids once at the time of admission, then a daily morning dose. In order to account for varying turnaround time at different laboratories, C-Reactive Protein (CRP) levels will be drawn with early morning labs, and used to determine the steroid dosing for the day. Patients will receive daily CRP measurements for the first 5 days of the hospitalization, or until hospital discharge. CRP measurements will be discontinued once the CRP is less than 50mmol/L. Steroid administration will be facilitated using standardized computerized physician order entry. The patients, treating physicians and outcome assessors will be blinded to the group assignment. Steroid order sets will include 6 hourly point of care glucose monitoring, and an insulin sliding scale for glucose levels to facilitate glucose management. The need for insulin drip will be determined by the treating physician. Additional testing including serum and urine ketones will be informed by the glucose level, serum anion gap and bicarbonate levels in routine basic metabolic panels and determined by the treating physician. In the usual care arm, patients will receive daily CRP measurements for the first 5 days of the hospitalization, or until hospital discharge.

Interventions

DRUGMethylprednisolone

Methylprednisolone will be administered based on CRP-guided protocol outlined under 'Biomarker-adjusted steroid dosing'.

OTHERUsual Care

Usual care as determined by the patients treatment team.

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

For the Pneumonia arm of the study: Inclusion Criteria: * Patients admitted to hospital with community acquired pneumonia. * Acute respiratory failure SpO2/FiO2 \< 315 (SpO2\<90% on room air or \<97% on 2L NC).

Exclusion criteria

* Contraindications or unwilling to use steroids by patient or provider * Refractory septic shock defined as a requirement of norepinephrine dose or equivalent above \>0.1 microgram/kilogram/minute or 2 or more vasopressors * Pre-admission chronic use of steroids or other immunosuppressive medications * Adrenal insufficiency * Comfort care * Leukopenia \<1000/mm or neutropenia \<500/mm (except if attributable to pneumonia) and HIV positive with a CD4 count \<100 * Recent or past history of bone marrow or solid organ transplantation * Hospital admission in the previous 30 days * Suspected flare of Interstitial lung disease (infectious and non-infectious) * Positive influenza testing or high suspicion for influenza For the COVID-19 arm of the study: Inclusion Criteria: * Patients admitted to hospital with COVID-19 pneumonia (high suspicion or confirmed by positive SARS CoV-2 testing). * Acute respiratory failure SpO2/FiO2 \< 315 (SpO2\<90% on room air or \<97% on 2L NC).

Design outcomes

Primary

MeasureTime frameDescription
Timely Initiation of Corticosteroids and Implementation of Biomarker-titrated Corticosteroid DosingWithin 30 days of enrollment in study.Number of eligible subjects to adhered to the timely initiation and daily corticosteroid treatment according to ESICM/Society of Critical Care Medicine SCCM clinical practice guideline (control group) or biomarker concordance (intervention group)

Secondary

MeasureTime frameDescription
Need for High Flow Nasal Cannula OxygenWithin hospitalization or 30 days of study enrollment (whichever is sooner)Number of subjects to need high flow nasal cannula oxygen
Need for Noninvasive Mechanical VentilationWithin hospitalization or 30 days of study enrollment (whichever is sooner)Assessed by the number of participants that required noninvasive mechanical ventilation.
Need for Invasive Mechanical VentilationWithin hospitalization or 30 days of study enrollment (whichever is sooner)Assessed by the number of participants that required invasive mechanical ventilation.
Organ FailureMeasured daily for approximately 5 daysOrgan failures measured by Sequential Organ Failure Assessment (SOFA). The overall score is based on 6 sub-scores respiratory system, neurologic system, cardiovascular system, hepatic system, coagulation, and renal system using an overall scale of 0-24, which 0=no organ failure, 24=complete organ failure.
New Onset Cardiac ArrhythmiasWithin hospitalization or 30 days of study enrollment (whichever is sooner)Number of participants who develop arrhythmias identified by electrocardiogram or echocardiogram.
Myocardial InjuryUp to day +14 following study enrollment.Number of participants with evidence of myocardial injury determined by daily troponin peak and /or new diagnosis of Left Ventricular (LV) dysfunction (LVEF \<40%) or new diagnosis of cor pulmonale
Mortality90 daysNumber of subject deaths
Occurrence of HyperglycemiaUp to day +5 following study enrollment.Number of participants who have hyperglycemia while receiving corticosteroids. Hyperglycemia is defined as a consistently elevated blood sugar level requiring insulin administration.
Occurrence of DeliriumUp to day +5 following study enrollment.Number of participants who develop delirium while receiving corticosteroids. Delirium will be assessed by Confusion Assessment Method for the ICU (CAM-ICU) measurement tool. The CAM-ICU is a binary (yes/no) scale for assessing the presence of delirium.
Occurrence of Secondary InfectionUp to day +14 following study enrollment.Number of participants who develop secondary infections during and after steroid therapy. A secondary infection is defined as a new infection that develops after initiation of corticosteroid therapy, until 5 days after steroids are discontinued.
ICU AdmissionWithin hospitalization or 30 days of study enrollment (whichever is sooner)Number of subjects admitted to the ICU
Oxygen-free DaysWithin hospitalization or 30 days of study enrollment (whichever is sooner)Number of days subjects did not require oxygen assistance.
Cardiovascular DysfunctionWithin hospitalization or 30 days of study enrollment (whichever is sooner)Number of subjects with new and/or worsening right ventricle (RV)/left ventricle (LV) dysfunction

Countries

United States

Participant flow

Participants by arm

ArmCount
Usual Care
Corticosteroid use and dosing determined by the patient's primary team for standard of care. Usual Care: Corticosteroid use and dosing determined by the patients treatment team for standard of care.
23
Biomarker-adjusted Steroid Dosing
Individualized, biomarker concordant steroid use: dosing, titration and duration according to CRP level. This is a predetermined dosing table that adjusts dose of steroid by CRP level. Specifically: if CRP \< 50 mmol/L: discontinue steroid; if CRP is between 51-100 mmol/L: 0.5 mg methylprednisolone (or dose equivalent of oral prednisone); if CRP is between 101-150 mmol/L: 0.75 mg/kg methylprednisolone (or dose equivalent of oral prednisone); if CRP level is between 151-200 mmol/L: 1 mg/kg methylprednisolone (or dose equivalent of oral prednisone); if CRP level \> 200 mmol/L: 1.5 mg/kg methylprednisolone (or dose equivalent of oral prednisone). Methylprednisolone: Methylprednisolone will be administered based on CRP-guided protocol outlined under 'Biomarker-adjusted steroid dosing'.
21
Total44

Baseline characteristics

CharacteristicUsual CareTotalBiomarker-adjusted Steroid Dosing
Age, Continuous60.0 years60.0 years59.0 years
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
2 Participants2 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants2 Participants2 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants5 Participants2 Participants
Race (NIH/OMB)
White
18 Participants35 Participants17 Participants
Region of Enrollment
United States
23 participants44 participants21 participants
Sex: Female, Male
Female
9 Participants18 Participants9 Participants
Sex: Female, Male
Male
14 Participants26 Participants12 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
1 / 231 / 21
other
Total, other adverse events
0 / 230 / 21
serious
Total, serious adverse events
0 / 230 / 21

Outcome results

Primary

Timely Initiation of Corticosteroids and Implementation of Biomarker-titrated Corticosteroid Dosing

Number of eligible subjects to adhered to the timely initiation and daily corticosteroid treatment according to ESICM/Society of Critical Care Medicine SCCM clinical practice guideline (control group) or biomarker concordance (intervention group)

Time frame: Within 30 days of enrollment in study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Usual CareTimely Initiation of Corticosteroids and Implementation of Biomarker-titrated Corticosteroid Dosing20 Participants
Biomarker-adjusted Steroid DosingTimely Initiation of Corticosteroids and Implementation of Biomarker-titrated Corticosteroid Dosing19 Participants
Secondary

Cardiovascular Dysfunction

Number of subjects with new and/or worsening right ventricle (RV)/left ventricle (LV) dysfunction

Time frame: Within hospitalization or 30 days of study enrollment (whichever is sooner)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Usual CareCardiovascular Dysfunction1 Participants
Biomarker-adjusted Steroid DosingCardiovascular Dysfunction1 Participants
p-value: 1Fisher Exact
Secondary

ICU Admission

Number of subjects admitted to the ICU

Time frame: Within hospitalization or 30 days of study enrollment (whichever is sooner)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Usual CareICU Admission10 Participants
Biomarker-adjusted Steroid DosingICU Admission5 Participants
p-value: 0.213Chi-squared
Secondary

Mortality

Number of subject deaths

Time frame: 90 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Usual CareMortality1 Participants
Biomarker-adjusted Steroid DosingMortality1 Participants
Secondary

Myocardial Injury

Number of participants with evidence of myocardial injury determined by daily troponin peak and /or new diagnosis of Left Ventricular (LV) dysfunction (LVEF \<40%) or new diagnosis of cor pulmonale

Time frame: Up to day +14 following study enrollment.

Population: Data were missing for 8 subjects in the usual care arm and 4 subjects in the biomarker-adjusted steroid dosing arm.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Usual CareMyocardial Injury8 Participants
Biomarker-adjusted Steroid DosingMyocardial Injury10 Participants
p-value: 1Chi-squared
Secondary

Need for High Flow Nasal Cannula Oxygen

Number of subjects to need high flow nasal cannula oxygen

Time frame: Within hospitalization or 30 days of study enrollment (whichever is sooner)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Usual CareNeed for High Flow Nasal Cannula Oxygen7 Participants
Biomarker-adjusted Steroid DosingNeed for High Flow Nasal Cannula Oxygen4 Participants
p-value: 0.494Fisher Exact
Secondary

Need for Invasive Mechanical Ventilation

Assessed by the number of participants that required invasive mechanical ventilation.

Time frame: Within hospitalization or 30 days of study enrollment (whichever is sooner)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Usual CareNeed for Invasive Mechanical Ventilation3 Participants
Biomarker-adjusted Steroid DosingNeed for Invasive Mechanical Ventilation2 Participants
p-value: 1Fisher Exact
Secondary

Need for Noninvasive Mechanical Ventilation

Assessed by the number of participants that required noninvasive mechanical ventilation.

Time frame: Within hospitalization or 30 days of study enrollment (whichever is sooner)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Usual CareNeed for Noninvasive Mechanical Ventilation4 Participants
Biomarker-adjusted Steroid DosingNeed for Noninvasive Mechanical Ventilation2 Participants
p-value: 0.666Fisher Exact
Secondary

New Onset Cardiac Arrhythmias

Number of participants who develop arrhythmias identified by electrocardiogram or echocardiogram.

Time frame: Within hospitalization or 30 days of study enrollment (whichever is sooner)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Usual CareNew Onset Cardiac Arrhythmias0 Participants
Biomarker-adjusted Steroid DosingNew Onset Cardiac Arrhythmias1 Participants
p-value: 0.477Fisher Exact
Secondary

Occurrence of Delirium

Number of participants who develop delirium while receiving corticosteroids. Delirium will be assessed by Confusion Assessment Method for the ICU (CAM-ICU) measurement tool. The CAM-ICU is a binary (yes/no) scale for assessing the presence of delirium.

Time frame: Up to day +5 following study enrollment.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Usual CareOccurrence of Delirium5 Participants
Biomarker-adjusted Steroid DosingOccurrence of Delirium5 Participants
p-value: 1Fisher Exact
Secondary

Occurrence of Hyperglycemia

Number of participants who have hyperglycemia while receiving corticosteroids. Hyperglycemia is defined as a consistently elevated blood sugar level requiring insulin administration.

Time frame: Up to day +5 following study enrollment.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Usual CareOccurrence of Hyperglycemia11 Participants
Biomarker-adjusted Steroid DosingOccurrence of Hyperglycemia18 Participants
p-value: 0.011Fisher Exact
Secondary

Occurrence of Secondary Infection

Number of participants who develop secondary infections during and after steroid therapy. A secondary infection is defined as a new infection that develops after initiation of corticosteroid therapy, until 5 days after steroids are discontinued.

Time frame: Up to day +14 following study enrollment.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Usual CareOccurrence of Secondary Infection0 Participants
Biomarker-adjusted Steroid DosingOccurrence of Secondary Infection0 Participants
Secondary

Organ Failure

Organ failures measured by Sequential Organ Failure Assessment (SOFA). The overall score is based on 6 sub-scores respiratory system, neurologic system, cardiovascular system, hepatic system, coagulation, and renal system using an overall scale of 0-24, which 0=no organ failure, 24=complete organ failure.

Time frame: Measured daily for approximately 5 days

ArmMeasureGroupValue (MEDIAN)
Usual CareOrgan FailureDay 23.0 score on a scale
Usual CareOrgan FailureDay 43.0 score on a scale
Usual CareOrgan FailureDay 33.0 score on a scale
Usual CareOrgan FailureDay 53.0 score on a scale
Usual CareOrgan FailureDay 13.0 score on a scale
Biomarker-adjusted Steroid DosingOrgan FailureDay 55.5 score on a scale
Biomarker-adjusted Steroid DosingOrgan FailureDay 17.0 score on a scale
Biomarker-adjusted Steroid DosingOrgan FailureDay 23.0 score on a scale
Biomarker-adjusted Steroid DosingOrgan FailureDay 33.0 score on a scale
Biomarker-adjusted Steroid DosingOrgan FailureDay 43.0 score on a scale
Secondary

Oxygen-free Days

Number of days subjects did not require oxygen assistance.

Time frame: Within hospitalization or 30 days of study enrollment (whichever is sooner)

ArmMeasureValue (MEDIAN)
Usual CareOxygen-free Days21.0 days
Biomarker-adjusted Steroid DosingOxygen-free Days24.0 days

Source: ClinicalTrials.gov · Data processed: Feb 19, 2026