Predicting benefit from adjuvant therapy with corticosteroids in community-acquired pneumonia: a data-driven analysis of randomised trials.
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Smit Jim M, Van Der Zee Philip A, Stoof Sara C M, Van Genderen Michel E, Snijders Dominic, Boersma Wim G, Confalonieri Paola, Salton Francesco, Confalonieri Marco, Shih Mei-Chiung, Meduri Gianfranco U, Dequin Pierre-François, Le Gouge Amélie, Lloyd Melanie, Karunajeewa Harin, Bartminski Grzegorz, Fernández-Serrano Silvia, Suárez-Cuartín Guillermo, van Klaveren David, Briel Matthias, Schönenberger Christof M, Steyerberg Ewout W, Gommers Diederik A M P J, Bax Hannelore I, Bos Wilem Jan W, van de Garde Ewoudt M W, Wittermans Esther, Grutters Jan C, Blum Claudine A, Christ-Crain Mirjam, Torres Antoni, Motos Ana, Reinders Marcel J T, Van Bommel Jasper, Krijthe Jesse H, Endeman Henrik
Аннотация
METHODS: In this individual patient data meta-analysis, we included RCTs published before July 1, 2024, comparing adjuvant treatment with corticosteroids versus placebo in patients hospitalised with CAP. The primary endpoint was 30-day all-cause mortality, collected across all trials, and analyses followed the intention-to-treat principle. We analysed HTE using risk and effect modelling. For risk modelling, patients were classified as having less severe or severe CAP based on the pneumonia severity index (PSI), comparing PSI class I-III versus class IV-V. For effect modelling, we trained a corticosteroid-effect model on six trials and externally validated it using data from two trials, received after model preregistration. This model classified patients into two groups: no predicted benefit and predicted benefit from adjuvant treatment with corticosteroids. The literature search was registered on PROSPERO, CRD42022380746.
FINDINGS: We included eight RCTs with 3224 patients. Across all eight trials, 246 (7·6%) patients died within 30 days (106 [6·6%] of 1618 in the corticosteroid group vs 140 [8·7%] of 1606 in the placebo group; odds ratio [OR] 0·72 [95% CI 0·56-0·94], p=0·017). The corticosteroid-effect model, which selected C-reactive protein (CRP), showed significant HTE during external validation in the two most recent trials. In these trials, 154 (11·4%) of 1355 patients died within 30 days (88 [13·1%] of 671 in the placebo group vs 66 [9·6%] of 684 in the corticosteroid group; OR 0·71 [95% CI 0·50-0·99], p=0·044). Among patients predicted to have no benefit (CRP ≤204 mg/L, n=725), no significant effect was observed (OR 0·98 [95% CI 0·63-1·50]), whereas for those with predicted benefit (CRP >204 mg/L, n=630), 39 (13·0%) of 301 patients died in the placebo group compared with 20 (6·1%) of 329 in the corticosteroid group (0·43 [0·25-0·76], pinteraction=0·026). No significant HTE was found between less severe CAP (PSI class I-III, n=229) and severe CAP (PSI class IV-V, n=1126). Corticosteroid therapy significantly increased hyperglycaemia risk (44 [12·8%] of 344 in the placebo group vs 84 [24·8%] of 339 in the corticosteroid group; OR 2·50 [95% CI 1·63-3·83], p<0·0001) and hospital re-admission risk (30 [3·7%] of 814 in the placebo group vs 57 [7·0%] of 819 in the corticosteroid group; 1·95 [1·24-3·07], p=0·0038).
INTERPRETATION: Overall, adjuvant therapy with corticosteroids significantly reduces 30-day mortality in patients hospitalised with CAP. The treatment effect varied significantly among subgroups based on CRP concentrations, with a substantial mortality reduction observed only in patients with high baseline CRP.
FUNDING: None.