Observational studyThe Lancet. Respiratory medicine2023
Identifying molecular phenotypes in sepsis: an analysis of two prospective observational cohorts and secondary analysis of two randomised controlled trials.
Observational study in The Lancet. Respiratory medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07511582 (Efficacy, Safety, and Tolerability of Methylprednisolone in Critically Ill Patients With the Hyperinflammatory Phenotype), which is not on this map. Cited by 141 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Efficacy, Safety, and Tolerability of Methylprednisolone in Critically Ill Patients With the Hyperinflammatory Phenotype: A Multicenter, Randomized, Double-Blind, Placebo-Controlled Phase II Trial
Who cites it
141 citing papers in PubMed, 170 citations in OpenAlex.
- Longitudinal multiomic signatures of ARDS and sepsis inflammatory phenotypes identify pathways associated with mortality.The Journal of clinical investigation · 2026Trial
- Molecular Phenotyping of Sepsis and Differential Response to Fluid Resuscitation.American journal of respiratory and critical care medicine · 2025Trial
- Elastance May Determine the Neuromuscular Blockade Effect on Mortality in Acute Respiratory Distress Syndrome.American journal of respiratory and critical care medicine · 2025Trial
- Inflammatory subphenotypes in patients at risk of ARDS: evidence from the LIPS-A trial.Intensive care medicine · 2023Trial
- The impact of ventilation mode on systemic inflammation and organ dysfunction in a porcine model of abdominal sepsis-associated acute respiratory distress syndrome.Intensive care medicine experimental · 2026Article
- Lung-Cardiovascular Interactions and Derangements in ARDS.Comprehensive physiology · 2026Review
- Lymphopenia and elevated NLR identify patients with septic shock who may benefit from corticosteroids: a target trial emulation study.Intensive care medicine experimental · 2026Article
- The NLRP3 inflammasome in physiological and dysfunctional host response in human sepsis and critical illness: a narrative review.Critical care (London, England) · 2026Review
- Protein Quantification Platforms For Use In Critical Care Precision Medicine Trials: A Scoping Review.Critical care explorations · 2026Article
- Acute Respiratory Distress Syndrome in Hospital-Acquired/Ventilator-Associated Pneumonia.Medical sciences (Basel, Switzerland) · 2026Review
- Timing of hemoadsorption in sepsis: redefining early through mediator-guided therapy.Journal of intensive care · 2026Review
- Review
- Ferroptosis-Senescence Crosstalk in Sepsis-Associated Acute Lung Injury: Mechanisms and Therapeutic Opportunities.Biomedicines · 2026Review
- Plasma proteomics defines two reproducible subphenotypes of sepsis-associated acute kidney injury with distinct outcomes.Nature communications · 2026Article
- A portable nanobiosensor with machine learning: enabling multi-cytokines point-of-care testing and early identification of sepsis immunoparalysis.Journal of nanobiotechnology · 2026Article
- The Acute Respiratory Distress Syndrome (ARDS): epidemiology, etiology, molecular mechanisms, diagnosis and therapeutic strategies.Molecular biomedicine · 2026Review
- Reframing sepsis through resistance, disease tolerance and damage: a clinically meaningful conceptual shift?Intensive care medicine · 2026Article
- Approximating Molecular Sepsis Subtypes Using Bedside Data in Resource-Limited Settings: A Multicenter Analysis From Uganda.Critical care explorations · 2026Observational
- Aberrant STAT signaling and T cell dysregulation define a targetable pediatric sepsis endotype.The Journal of clinical investigation · 2026Article
- The molecular ICU: a primer on omics, informatics and the future of precision critical care.Critical care (London, England) · 2026Review
81 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
27 authors at 9 institutions in 2 countries.
Funding
Abstract
backgroundIn sepsis and acute respiratory distress syndrome (ARDS), heterogeneity has contributed to difficulty identifying effective pharmacotherapies. In ARDS, two molecular phenotypes (hypoinflammatory and hyperinflammatory) have consistently been identified, with divergent outcomes and treatment responses. In this study, we sought to derive molecular phenotypes in critically ill adults with sepsis, determine their overlap with previous ARDS phenotypes, and evaluate whether they respond differently to treatment in completed sepsis trials.
methodsWe used clinical data and plasma biomarkers from two prospective sepsis cohorts, the Validating Acute Lung Injury biomarkers for Diagnosis (VALID) study (N=1140) and the Early Assessment of Renal and Lung Injury (EARLI) study (N=818), in latent class analysis (LCA) to identify the optimal number of classes in each cohort independently. We used validated models trained to classify ARDS phenotypes to evaluate concordance of sepsis and ARDS phenotypes. We applied these models retrospectively to the previously published Prospective Recombinant Human Activated Protein C Worldwide Evaluation in Severe Sepsis and Septic Shock (PROWESS-SHOCK) trial and Vasopressin and Septic Shock Trial (VASST) to assign phenotypes and evaluate heterogeneity of treatment effect.
findingsA two-class model best fit both VALID and EARLI (p<0·0001). In VALID, 804 (70·5%) of the 1140 patients were classified as hypoinflammatory and 336 (29·5%) as hyperinflammatory; in EARLI, 530 (64·8%) of 818 were hypoinflammatory and 288 (35·2%) hyperinflammatory. We observed higher plasma pro-inflammatory cytokines, more vasopressor use, more bacteraemia, lower protein C, and higher mortality in the hyperinflammatory than in the hypoinflammatory phenotype (p<0·0001 for all). Classifier models indicated strong concordance between sepsis phenotypes and previously identified ARDS phenotypes (area under the curve 0·87-0·96, depending on the model). Findings were similar excluding participants with both sepsis and ARDS. In PROWESS-SHOCK, 1142 (68·0%) of 1680 patients had the hypoinflammatory phenotype and 538 (32·0%) had the hyperinflammatory phenotype, and response to activated protein C differed by phenotype (p=0·0043). In VASST, phenotype proportions were similar to other cohorts; however, no treatment interaction with the type of vasopressor was observed (p=0·72).
interpretationMolecular phenotypes previously identified in ARDS are also identifiable in multiple sepsis cohorts and respond differently to activated protein C. Molecular phenotypes could represent a treatable trait in critical illness beyond the patient's syndromic diagnosis.
fundingUS National Institutes of Health.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.