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Clinical Trials

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.
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Clinical Trials: Overview

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...

Bioavailability Study Design: Single Versus Multiple Dose Studies

Bioavailability Study Design: Single Versus Multiple Dose Studies

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Bioavailability Study Design: Healthy Subjects Versus Patients

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Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...

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Updated: Jun 16, 2026

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis

Published on: June 2, 2015

Quantitative MR in multi-center clinical trials.

Edward Ashton¹

¹VirtualScopics, Inc., Rochester, NY, USA. ashton@virtualscopics.com

Journal of Magnetic Resonance Imaging : JMRI

|January 26, 2010

Summary

This summary is machine-generated.

Magnetic Resonance Imaging (MRI) offers valuable endpoints for early-phase clinical trials. However, standardizing MRI protocols across multi-center trials presents significant challenges due to system variability.

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Last Updated: Jun 16, 2026

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis

Published on: June 2, 2015

Area of Science:

Medical Imaging
Clinical Trials
Radiology

Background:

Magnetic Resonance Imaging (MRI) is increasingly utilized in clinical trials.
Its flexibility allows for diverse imaging endpoints, including structural, functional, and molecular measures.
MRI is particularly useful in early-phase trials for proof-of-concept and resource allocation decisions.

Purpose of the Study:

To review the benefits of quantitative MRI in clinical trials.
To explore the challenges in developing and deploying standardized MRI protocols for multi-center trials.
To address the need for effective and implementable MRI protocols across diverse systems.

Main Methods:

Review of existing literature on MRI applications in clinical trials.
Analysis of challenges in multi-center MRI deployment.
Discussion of protocol standardization issues.

Main Results:

MRI provides a wide range of valuable imaging endpoints for clinical trials.
Variability in MRI scanner hardware, software, and terminology complicates multi-center trial data comparability.
Differences between clinical trial and routine clinical practice procedures necessitate specialized training.

Conclusions:

Quantitative MRI offers significant benefits for clinical trials.
Standardizing MRI protocols is crucial but challenging due to inter-system variability.
Developing robust, implementable, and standardized MRI protocols is essential for reliable multi-center trial results.