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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...
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...
Study Designs in Epidemiology01:20

Study Designs in Epidemiology

Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
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...
Preclinical Development: Overview01:28

Preclinical Development: Overview

Preclinical development consists of a series of tests that ensure the safety and efficacy of a new therapeutic compound before it is tested in humans. There are four main phases to this process. First, safety pharmacology tests are conducted to ensure the drug does not produce any acutely harmful effects. These tests examine parameters such as bronchoconstriction, cardiac dysrhythmias, blood pressure changes, and ataxia. Next, preliminary toxicological testing is performed to determine the...
Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs01:15

Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs

Bioequivalence experimental study designs play a pivotal role in testing the effectiveness of various treatments. Key among these are the repeated measures, cross-over, carry-over, and Latin square designs. In the repeated measures design, each subject receives all treatments, allowing for temporal comparisons. This type of design is useful in reducing variability but requires careful planning to avoid bias.The cross-over design, an economical method, involves sequential administration of...

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Related Experiment Video

Updated: May 11, 2026

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
04:53

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition

Published on: September 20, 2019

Do our current clinical trial designs help to guide clinical practice?

Jean-Yves Blay1, Olfa Derbel, Isabelle Ray-Coquard

  • 1From the Department of Medicine, Centre Léon Bérard, Lyon, France; Unité INSERM 1052, Centre Léon Bérard, Lyon, France; Université Claude Bernard Lyon, Lyon, France.

American Society of Clinical Oncology Educational Book. American Society of Clinical Oncology. Annual Meeting
|May 30, 2013
PubMed
Summary

Current sarcoma classification is molecularly refined, but clinical trials often use standardized approaches. Novel trial designs are needed to guide treatment for diverse sarcoma subtypes.

Related Experiment Videos

Last Updated: May 11, 2026

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
04:53

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition

Published on: September 20, 2019

Area of Science:

  • Oncology
  • Molecular Pathology
  • Clinical Trial Design

Background:

  • Sarcoma classification is increasingly detailed with molecular subtyping.
  • Clinical practice guidelines often use a standardized treatment approach for sarcomas.
  • Existing clinical trials may not adequately address the heterogeneity of sarcoma subtypes.

Purpose of the Study:

  • To highlight the discrepancy between advanced sarcoma classification and clinical trial design.
  • To discuss the limitations of current clinical trial methodologies for guiding sarcoma treatment.
  • To advocate for improved clinical trial designs for specific sarcoma molecular and histologic subtypes.

Main Methods:

  • Review of current sarcoma classification systems and clinical trial designs.
  • Analysis of therapeutic strategies for specific sarcoma subtypes like GIST.
  • Discussion of the need for translational research in sarcoma clinical trials.

Main Results:

  • A growing number of sarcoma subtypes exist, necessitating tailored treatments.
  • Many sarcomas are grouped together in trials, limiting specific therapeutic insights.
  • Current trial designs may not generate sufficient evidence for routine clinical practice.

Conclusions:

  • There is a critical need for novel clinical trial designs in sarcoma research.
  • Future trials should focus on molecular and histologic subtypes, integrating translational research.
  • Improved trial designs are essential to guide personalized treatment strategies for sarcoma patients.