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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...
Ethics in Research01:56

Ethics in Research

Today, scientists agree that good research is ethical in nature and is guided by a basic respect for human dignity and safety. However, this has not always been the case. Modern researchers must demonstrate that the research they perform is ethically sound.
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...
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...
Ethical Dilemmas I01:17

Ethical Dilemmas I

Ethical dilemmas in nursing are of utmost importance, as they often arise from the tension between adhering to core ethical principles and the practical realities of healthcare delivery. These dilemmas require nurses to navigate complex situations where competing ethical considerations pull them in different directions.
Let us explore some examples to understand the potentially complex moral decisions nurses face.
Take the case of caring for minors, particularly in areas related to reproductive...

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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

Ethics, error, and initial trials of efficacy.

Spencer Phillips Hey1, Jonathan Kimmelman

  • 1Studies for Translation, Ethics, and Medicine Group (STREAM), Biomedical Ethics Unit, McGill University, Montreal, QC H3A 1X1, Canada.

Science Translational Medicine
|May 10, 2013
PubMed
Summary
This summary is machine-generated.

Clinical trial reforms may improve the predictability of phase 2 trial success. However, these changes could introduce ethical and social challenges that require careful consideration.

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Area of Science:

  • Clinical pharmacology
  • Biomedical research
  • Drug development

Background:

  • Phase 2 clinical trials are critical for assessing drug efficacy and safety.
  • Predictivity of phase 2 trials influences decisions regarding progression to later phases.
  • Current clinical trial designs may have limitations in predicting downstream success.

Purpose of the Study:

  • To explore potential reforms in clinical trial design.
  • To assess the impact of reforms on phase 2 positive predictivity.
  • To identify associated ethical and social trade-offs of proposed reforms.

Main Methods:

  • Review of existing clinical trial methodologies.
  • Analysis of factors influencing phase 2 trial outcomes.
  • Ethical and social impact assessment framework.

Main Results:

  • Reforms aimed at enhancing phase 2 positive predictivity were identified.
  • Potential benefits include improved resource allocation and faster drug development.
  • Significant ethical and social considerations, such as patient access and equity, were highlighted.

Conclusions:

  • Reforms to boost phase 2 positive predictivity are feasible.
  • Careful navigation of ethical and social implications is necessary for successful implementation.
  • Balancing predictive accuracy with broader societal values is crucial.