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Related Concept Videos

Clinical Trials01:16

Clinical Trials

10.0K
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...
10.0K
Clinical Trials: Overview01:11

Clinical Trials: Overview

4.3K
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...
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Controls in Experiments01:13

Controls in Experiments

14.4K
When conducting an experiment, it is crucial to have control to reduce bias and accurately measure the dependent variables. It also marks the results more reliable. Controls are elements in an experiment that have the same characteristics as the treatment groups but are not affected by the independent variable. By sorting these data into control and experimental conditions, the relationship between the dependent and independent variables can be drawn. A randomized experiment always includes a...
14.4K
Hazard Ratio01:12

Hazard Ratio

406
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...
406
Single Nucleotide Polymorphisms-SNPs01:05

Single Nucleotide Polymorphisms-SNPs

17.5K
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
17.5K

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Related Experiment Video

Updated: Nov 29, 2025

Large-Scale SARS-CoV-2 Testing Utilizing Saliva and Transposition Sample Pooling
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Large-Scale SARS-CoV-2 Testing Utilizing Saliva and Transposition Sample Pooling

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The COVID-19 Trial Finder.

Yingcheng Sun1, Alex Butler1,2, Fengyang Lin3

  • 1Department of Biomedical Informatics, Columbia University, New York, New York, USA.

Journal of the American Medical Informatics Association : JAMIA
|November 20, 2020
PubMed
Summary

Finding a clinical trial for coronavirus disease 2019 (COVID-19) can be challenging. The COVID-19 Trial Finder tool helps patients quickly find and prescreen eligibility for nearby COVID-19 clinical trials, reducing information overload.

Keywords:
COVID-19clinical trialeligibility criteriainformation filteringquestionnaireweb application

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Area of Science:

  • Medical Informatics
  • Clinical Trial Management
  • Public Health

Background:

  • Clinical trial recruitment is a major bottleneck in medical research.
  • Existing patient search tools can lead to information overload.
  • The rapid expansion of coronavirus disease 2019 (COVID-19) trials necessitates efficient recruitment solutions.

Purpose of the Study:

  • To design and evaluate a patient-centered tool for searching COVID-19 clinical trials.
  • To minimize human-computer interaction during the trial eligibility prescreening process.

Main Methods:

  • Developed the COVID-19 Trial Finder, a tool for searching trials by location and proximity.
  • Integrated dynamic, brief medical questions for automated eligibility prescreening.
  • Conducted a simulation study using 20 patient case reports to assess performance.

Main Results:

  • The COVID-19 Trial Finder demonstrated precision and effectiveness in a simulation study.
  • The tool facilitates patient-centered search by location and dynamic eligibility questions.
  • Reduced information overload for users searching for COVID-19 clinical trials.

Conclusions:

  • The COVID-19 Trial Finder is an effective tool for improving patient recruitment in clinical trials.
  • This tool can help streamline the process of finding and prescreening for COVID-19 studies.
  • Efficient patient recruitment is crucial for advancing medical evidence, especially during public health crises.