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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...
Randomized Experiments01:13

Randomized Experiments

The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
Group Design02:01

Group Design

The most basic experimental design involves two groups: the experimental group and the control group. The two groups are designed to be the same except for one difference— experimental manipulation. The experimental group gets the experimental manipulation—that is, the treatment or variable being tested—and the control group does not. Since experimental manipulation is the only difference between the experimental and control groups, we can be sure that any differences between the two are due to...
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...
Blinding01:11

Blinding

Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs01:20

Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs

Bioequivalence experimental study designs are crucial methodologies used in evaluating and comparing the bioavailability of different drug products. These designs are categorized into various types: completely randomized, randomized block, repeated measures, cross and carry-over, and Latin square designs.Completely randomized designs involve randomly allocating treatments to all subjects participating in the experiment. This allocation is achieved by assigning unique random numbers to subjects...

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Related Experiment Video

Updated: Jun 12, 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

Randomized clinical trials in children--ethical and methodological issues.

A D Henschel1, L G Rothenberger, J Boos

  • 1University Children's Hospital Muenster, Department of Pediatric Hematology and Oncology, Albert Schweitzer-Strasse 33, 48149 Muenster, Germany.

Current Pharmaceutical Design
|June 2, 2010
PubMed
Summary
This summary is machine-generated.

Randomized controlled trials (RCTs) are essential for medical research but complex. This review examines ethical and methodological challenges in pediatric RCTs, emphasizing child assent and equipoise for valid drug safety and efficacy data.

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Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure
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Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure

Published on: July 30, 2009

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Last Updated: Jun 12, 2026

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Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure
15:18

Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure

Published on: July 30, 2009

Area of Science:

  • Clinical Research Methodology
  • Pediatric Pharmacology
  • Medical Ethics

Background:

  • Randomized controlled trials (RCTs) are the gold standard for evaluating medical interventions, ensuring evidence-based medicine and drug approvals.
  • Conducting RCTs is resource-intensive, leading to pharmaceutical industry dominance in drug development and registration.
  • High-quality pediatric research is crucial to reduce off-label drug use and ensure child safety and treatment efficacy.

Purpose of the Study:

  • To review the ethical and methodological considerations of RCTs in adults and pediatric populations.
  • To highlight the importance of tailored pediatric research to meet regulatory requirements and ensure child well-being.
  • To analyze publication trends and challenges associated with RCTs.

Main Methods:

  • This narrative review synthesizes existing literature on RCT methodology and ethics.
  • A quantitative analysis was performed to explore publication patterns of RCTs.
  • The review specifically addresses challenges unique to pediatric clinical trials.

Main Results:

  • RCTs prevent allocation bias and balance confounders, crucial for reliable research outcomes.
  • Pediatric RCTs require careful attention to feasibility and ethical issues, including informed child assent and equipoise.
  • Regulatory authorities support pediatric studies, obligating industry and researchers to prioritize children's best interests.

Conclusions:

  • Implementing robust RCTs, especially in pediatrics, necessitates addressing ethical and practical challenges.
  • Ensuring child assent and therapeutic equipoise are critical for ethical and scientifically sound pediatric drug research.
  • Further research and adherence to regulatory guidelines are needed to advance pediatric evidence-based medicine.