Development of a definitive RCT of steroids in critically ... · Development of a definitive RCT of...
Transcript of Development of a definitive RCT of steroids in critically ... · Development of a definitive RCT of...
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Development of a definitive RCT of steroids in critically ill patients
UNSW
John A MyburghMBBCh PhD FCICM
Professor of Critical Care Medicine
The George Institute for Global Health
University of New South Wales
St George Hospitals, Sydney
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Scott: J Exp Med 1923
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Cornil: Acta Endocrin 1968
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Chernow: Arch Int Med 1987
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Steroid therapy in sepsis
Steroid success era1950 Mid 80s
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Steroid therapy in sepsis
Steroid success era1950 Mid 80s
Steroid excess1980 Mid 80s
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N=59
MPS / DXM
Decreased early mortality
N=382
Methylpred 30mg/kg
Increased mortality
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Steroid therapy in sepsis
Steroid success era1950 Mid 80s
Steroid excess1990 2000Uncertainty
Resurgence in interest2000+ 2000
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Prospective
Double-blind
Multicentred (19 centres France 1995-1999)
Placebo controlled trial
Comparison of hydrocortisone (50mg 6h x 7days) + fludrocortisone vs
placebo in patients with septic shock
Primary outcome:
28-day mortality in “non-responders”
Secondary outcomes:
28-day and 90-day mortality (all patients, “responders”)
Reversal of shock
n=300
Annane: JAMA 2002
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Prospective
Double-blind
Multicentred (19 centres France 1995-1999)
Placebo controlled trial
Comparison of hydrocortisone (50mg 6h x 7days) + fludrocortisone vs
placebo in patients with septic shock
No difference in landmark mortality
After adjustment: Improved mortality in “non responders:
60/114 vs 72/115 :p-0.02
Annane: JAMA 2002
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Prospective
Double-blind
Multicentred (52 centres Europe)
Placebo controlled trial
Comparison of infusions of hydrocortisone (50mg 6h x 5days, tapered
to day 11) vs placebo in patients with septic shock
Primary outcome:
28-day mortality in “non-responders”
Secondary outcomes:
28-day and 90-day mortality (all patients, “responders”)
Reversal of shock
n=800
Sprung: NEJM 2008
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Sprung: NEJM 2008
Primary outcome
28-day mortality
N=500/800125/252 (49.6%) v 108/248 (43.5%)
28-day mortality
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Steroids and shock reversal
Annane: JAMA 2009
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Steroids and mortality
Annane: JAMA 2009
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“After more than 50 years of research, we are still
dogged by uncertainty and confusion”
Steroids of
benefit in
discrete focal
septic states
Steroids improve
pressor
responsiveness in
SS
High dose
steroids increase
mortality in SS
Low dose
steroids
effect on
mortality in
SS
?
Rationale for a definitive trial
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2002 - 2005
276 centres
8986 patients
Beale: Crit Care 2010
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10
%
9%
53%
28%
ANZICS CTG survey 2010
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The quest for meaningful outcomes
NICE-SUGAR: NEJM 2009 DECRA: NEJM 2011
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Adjunctive corticosteroid treatment in critically ill patients with septic shock
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Funding
Project Grant: Large Scale Clinical Trials
October 2011
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To determine whether hydrocortisone therapy reduces all-cause day
90 mortality in patients admitted to an Intensive Care Unit with septic
shock.
Aim
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Design and oversight
Investigator-initiated, multicenter, prospective, blinded, parallel-
group, randomised-controlled trial
55 adult medical-surgical ICUs in Australia and New Zealand
Lead ethics committee and institutional ethics committee approval:
Written, informed consent pre-randomization OR
Delayed consent from each patient, surrogate or IEC
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Trial registration
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Adult patients.
Documented site / strong suspicion of infection
At least 2 SIRS criteria
Shock attributable to sepsis
Need for catecholamines
MAP>60
Duration > 4 hours and present at randomisation
Requirement for positive pressure ventilation
No requirement for corticotropin response
Inclusion criteria
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Clinical indication for systemic corticosteroids
Met all inclusion criteria > 24 hours ago
Death is deemed imminent and inevitable.
An underlying disease process with a life expectancy of < 90days
Exclusion criteria
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Power
Assuming 5% loss to follow-up
To detection ARR 5% (15% RRR) from baseline mortality of 33%
(α=0.05; β0.9)
n=3800
Design
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Outcomes
All-cause mortality at 90 days
Interval mortality rates
Resolution of shock
Length of ventilation
Re-intubation rate/tracheostomy
RRT
Recurrence of shock
Bacteraemia (positive blood culture between 2-12 days post randomisation)
Bleeding rates (>3U blood >2 consecutive days
Quality of life assessment (12 months)
Health economics assessment
Outcomes
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Study treatment
200 mg hydrocortisone/day given as an intravenous infusion over 24
hours for 7 days or till discharge from ICU
OR
placebo given as an intravenous infusion over 24 hours for 7 days or till
discharge from ICU
Study treatments supplied in identical vials
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NHMRC project grant received 2010
Management Committee
Operation committee
Ethics clearance
Sourcing placebo and study drug
FPI
October 2011
Inception period 5 years = 500 patients /year.
Site selection:
At least 50 in ANZ
International collaboration 20-30 sites
Progress
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35
7
71
31
?
1