Related Experiment Video
Updated: Aug 10, 2026

Characterizing Modulators of Protease-Activated Receptors with a Calcium Mobilization Assay Using a Plate Reader
Published on: May 24, 2024
Recombinant activated protein C: the key is clinical assessment of risk of death, not subset analysis
1Section of Critical Care Medicine, Cooper University Hospital, One Cooper Plaza, Camden, NJ 08103, USA. dellinger-phil@cooperhealth.edu
Insights
The PROWESS trial showed recombinant activated protein C (rhAPC) reduced severe sepsis mortality by 6.1%. Despite initial findings, ongoing debate surrounds rhAPC
Area of Science:
- Critical Care Medicine
- Pharmacology
- Clinical Trials
Background:
- Severe sepsis poses a significant mortality risk.
- Recombinant activated protein C (rhAPC) emerged as a potential therapeutic agent.
- The PROWESS trial provided initial evidence for rhAPC efficacy.
Purpose of the Study:
- To evaluate the clinical utility of rhAPC in severe sepsis.
- To address criticisms and controversies surrounding the PROWESS trial.
- To guide clinical practice regarding rhAPC use.
Main Methods:
- Analysis of the PROWESS trial data.
- Review of subsequent studies on rhAPC.
- Synthesis of evidence to inform clinical decision-making.
Main Results:
- The PROWESS trial reported a 6.1% absolute mortality reduction (p=0.005).
- Subsequent research has generated both supporting and conflicting data.
- Controversy persists regarding study design, analysis, and interpretation.
Conclusions:
- The clinical application of rhAPC remains a subject of debate.
- Evidence synthesis is crucial for navigating rhAPC use in clinical practice.
- Further research may be needed to clarify rhAPC's role in severe sepsis management.
Abstract:
The PROWESS (Recombinant Human Activated Protein C Worldwide Evaluation in Severe Sepsis) trial demonstrated a 6.1% absolute decrease in mortality with a p value of 0.005. Despite the impressive results of this trial, criticism of the study has targeted various aspects of design, analysis and interpretation. Additional studies of recombinant activated protein C (rhAPC) have added to our understanding about this drug and to controversy as well. So how do we deal with rhAPC use in our clinical practice?
Related Concept Videos
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast, controlled...
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
Hazard Ratio
For example, in a clinical trial evaluating a...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
Impact of Pharmacokinetic–Pharmacodynamic Models: Regulatory Decisions
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...