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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

4.2K
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...
4.2K
Preclinical Development: Overview01:28

Preclinical Development: Overview

5.5K
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...
5.5K
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches01:23

Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches

263
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,...
263
Clinically Relevant Drug Product Specifications: Methods of Establishment01:29

Clinically Relevant Drug Product Specifications: Methods of Establishment

84
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...
84
Bioequivalence studies: Biowaivers01:13

Bioequivalence studies: Biowaivers

76
Body:In certain scenarios, in vitro dissolution tests can replace in vivo bioequivalence studies. This is particularly true when a drug product, though available in varying strengths, maintains proportional similarity in its active and inactive ingredients. In such cases, the need for in vivo bioequivalence studies for lower strength variants may be waived, provided dissolution tests and in vivo studies on the highest strength yield satisfactory results.Bioequivalence can be indicated through...
76

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Updated: Nov 15, 2025

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
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A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition

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Clinical Trials Without Clinical Sites.

Steven R Cummings1,2

  • 1San Francisco Coordinating Center, California Pacific Medical Center Research Institute, San Francisco, California.

JAMA Internal Medicine
|March 1, 2021
PubMed
Summary
This summary is machine-generated.

Decentralized clinical trials, conducted without physical sites, can increase participant access and generalizability. These innovative approaches leverage remote data collection and home-based procedures to reduce patient burden.

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Area of Science:

  • Clinical Research Methodology
  • Digital Health
  • Patient-Centered Care

Background:

  • Traditional clinical trials at physical sites limit participation to local individuals and pose accessibility challenges.
  • Face-to-face interactions, in-person consent, and specimen collection are standard in site-based trials.
  • Participant burden, including travel and time commitment, can hinder trial enrollment and completion.

Purpose of the Study:

  • To explore the feasibility and implications of conducting clinical trials without traditional clinical sites.
  • To identify methods for remote data collection, patient assessment, and treatment delivery in decentralized trials.
  • To assess the potential of site-less trials to broaden participation and improve the representativeness of trial results.

Main Methods:

  • Online collection of informed consent and patient-reported data.
  • Remote patient examinations via telemedicine or by visiting research nurses.
  • Home-based biospecimen collection by nurses or local labs, and direct-to-home treatment delivery.

Main Results:

  • Decentralized trial methods can overcome geographical barriers and accommodate participants with mobility issues.
  • Remote communication tools (email, phone, video) are essential for maintaining participant engagement.
  • While not all trials can be fully decentralized, hybrid approaches can significantly reduce site visit requirements.

Conclusions:

  • Conducting clinical trials without traditional sites offers a promising avenue to expand participant diversity and enhance the generalizability of findings.
  • Implementing remote data collection, telemedicine, and home-based procedures can substantially decrease the burden on clinical trial participants.
  • Further research and adaptation of methodologies are needed to optimize the effectiveness and scope of decentralized clinical trials.