Patients included in randomised controlled trials do not represent those seen in clinical practice: focus on

Matthew E Falagas1, Evridiki K Vouloumanou, Konstantinos Sgouros

  • 1Alfa Institute of Biomedical Sciences (AIBS), 9 Neapoleos Street, 151 23 Marousi, Athens, Greece. m.falagas@aibs.gr

Insights

Randomised controlled trials (RCTs) for infectious diseases often exclude many patients seen in clinical practice due to strict criteria. This limits the generalizability of RCT findings to real-world patient care.

Area of Science:

  • Infectious Diseases
  • Clinical Trials
  • Evidence-Based Medicine

Background:

  • Clinicians depend on randomised controlled trials (RCTs) for treatment decisions.
  • The representativeness of RCT participants compared to general patient populations is crucial for evidence-based practice.

Purpose of the Study:

  • To assess if patients in antimicrobial agent RCTs reflect those in real-life clinical settings.
  • To evaluate the exclusion criteria used in infectious disease RCTs.

Main Methods:

  • A PubMed search identified RCTs in infectious diseases.
  • Exclusion criteria from 30 selected RCTs were extracted and analyzed.
  • Qualitative comparison of RCT-eligible patients versus general practice patients was performed.

Main Results:

  • Thirty RCTs (respiratory, skin, abdominal, gynaecological, bloodstream infections) were included.
  • All identified RCTs utilized extensive exclusion criteria.
  • Significant differences were observed between RCT populations and general clinical practice populations.

Conclusions:

  • Infectious disease RCTs frequently employ stringent exclusion criteria.
  • These criteria can create a substantial divergence between trial participants and patients in clinical practice.
  • Caution is advised when applying RCT findings to individual patient care.

Related Concept Videos

Clinical Trials01:16

Clinical Trials

Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
Clinical Trials: Overview01:11

Clinical Trials: Overview

Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches01:23

Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches

Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast, controlled...