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Related Concept Videos

Clinical Trials01:16

Clinical Trials

10.1K
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...
10.1K
Clinical Trials: Overview01:11

Clinical Trials: Overview

4.4K
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...
4.4K
Preclinical Development: Overview01:28

Preclinical Development: Overview

5.7K
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...
5.7K
Clinically Relevant Drug Product Specifications: Methods of Establishment01:29

Clinically Relevant Drug Product Specifications: Methods of Establishment

132
Product specifications define the acceptable quality of a pharmaceutical product by ensuring identity, purity, potency, and strength. These specifications serve as benchmarks during development, manufacturing, and post-approval quality control. Clinically relevant specifications are particularly important because they directly relate to a drug's safety and efficacy in clinical use.Dissolution studies are critical biopharmaceutic tools that link in vitro behavior to in vivo performance. They...
132
Blinding01:11

Blinding

3.8K
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.
3.8K
Hazard Ratio01:12

Hazard Ratio

483
The hazard ratio (HR) is a widely used measure in clinical trials to compare the risk of events, such as death or disease recurrence, between two groups over time. It reflects the ratio of hazard rates—the instantaneous risk of the event occurring—between a treatment group and a control group. This measure provides valuable insights into the relative effectiveness of a treatment by assessing how the risk of an event differs between the two groups.
For example, in a clinical trial...
483

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Related Experiment Video

Updated: Dec 25, 2025

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
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How to set up a clinical trial.

Rachel A B Thomas1, Emma Louise Aitken2, Jean Antonelli3

  • 1The Edinburgh Transplant Centre, Royal Infirmary of Edinburgh, Edinburgh, UK rab_thomas@hotmail.co.uk.

Postgraduate Medical Journal
|March 29, 2020
PubMed
Summary

This guide simplifies clinical trial management for new researchers. It offers practical advice and troubleshooting tips for completing healthcare intervention studies on time and within budget.

Keywords:
clinical trialsstatistics & research methods

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Area of Science:

  • Clinical Research
  • Medical Interventions
  • Healthcare Evaluation

Background:

  • Randomized control trials (RCTs) are the gold standard for evaluating healthcare interventions.
  • Conducting RCTs is complex, posing challenges for early-career researchers.
  • Navigating the regulatory landscape for clinical trials can be difficult.

Purpose of the Study:

  • To provide an introductory guide to clinical trials.
  • To offer practical advice for investigators to complete trials efficiently.
  • To assist researchers in navigating the regulatory pathway and troubleshooting common issues.

Main Methods:

  • The guide draws on the authors' recent practical experience in running clinical trials.
  • It provides an overview of trial setup, contribution, and leadership.
  • Focuses on practical tips for troubleshooting common problems in trial design and documentation.

Main Results:

  • The guide aims to equip researchers with the knowledge to manage trials effectively.
  • It offers strategies for completing clinical trials on time and within budget.
  • Addresses common challenges in trial design, documentation, and regulatory compliance.

Conclusions:

  • This resource demystifies clinical trial processes for novice investigators.
  • It empowers researchers to successfully initiate and complete clinical trials.
  • Facilitates efficient and compliant execution of healthcare intervention studies.