Long-term costs and cost-effectiveness of adjunctive corticosteroids for patients with septic shock in New Zealand

Aust Crit Care. 2022 May;35(3):241-250. doi: 10.1016/j.aucc.2021.05.006. Epub 2021 Jul 26.

Abstract

Objective: The aim of the study was to determine whether adjunctive hydrocortisone reduced healthcare expenditure and was cost-effective compared with placebo in New Zealand patients in the Adjunctive Glucocorticoid Therapy in Patients with Septic Shock (ADRENAL) trial.

Design: This is a health economic analysis using data linkage to New Zealand Ministry of Health databases to determine resource use, costs, and cost-effectiveness for a 24-month period.

Setting: The study was conducted in New Zealand.

Participants and intervention: Patients with septic shock were randomised to receive a 7-day continuous infusion of 200 mg of hydrocortisone or placebo in the ADRENAL trial.

Main outcome measures: Healthcare expenditure was associated with all hospital admissions, emergency department presentations, outpatient visits, and pharmacy expenditure. Effectiveness outcomes included mortality at 6 months and 24 months and quality of life at 6 months. Cost-effectiveness outcomes were assessed with reference to quality-adjusted life years gained at 6 months and life years gained at 24 months.

Results: Of 3800 patients in the ADRENAL trial, 419 (11.0%) were eligible, and 405 (96.7% of those eligible) were included. The mean total costs per patient over 24 months were $143,627 ± 100,890 and $143,772 ± 97,117 for the hydrocortisone and placebo groups, respectively (p = 0.99). Intensive care unit costs for the index admission were $50,492 and $62,288 per patient for the hydrocortisone and placebo groups, respectively (p = 0.09). The mean number of quality-adjusted life years gained at 6 months and mean number of life years gained at 24 months was not significantly different by treatment group, and the probability of hydrocortisone being cost-effective was 55% at 24 months.

Conclusions: In New Zealand, adjunctive hydrocortisone did not reduce total healthcare expenditure or improve outcomes compared with placebo in patients with septic shock.

Keywords: Corticosteroids; Cost-effectiveness analysis; Economic evaluation; Intensive care medicine; Sepsis; Septic shock.

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Adrenal Cortex Hormones / therapeutic use
  • Cost-Benefit Analysis
  • Humans
  • Hydrocortisone / therapeutic use
  • New Zealand
  • Quality of Life
  • Shock, Septic* / drug therapy

Substances

  • Adrenal Cortex Hormones
  • Hydrocortisone