Related Experiment Video
Updated: Feb 6, 2026

Deep Neural Networks for Image-Based Dietary Assessment
Published on: March 13, 2021
Practice-Based Research Networks and the Mandate for Real-World Evidence
Elizabeth Hall-Lipsy1, Leila Barraza2, Christopher Robertson3
1J.D., M.P.H.; Assistant Professor, College of Pharmacy, University of Arizona.
Abstract:
The 21st Century Cures Act encourages the Food and Drug Administration to consider "real-world evidence" in its regulation of the safety and efficacy of drugs and devices. Many have interpreted this mandate to focus on non-randomized observational research. However, we suggest that regulatory science must also move from rarefied academic hospitals to community-based settings, where the vast majority of patients in fact receive care in the fragmented U.S. healthcare system. This move is especially important if innovations are to reach, and be validated in, more diverse populations. A solution can be found in the 183 Practiced-Based Research Networks ("PBRN"), i.e., groups of primary care clinicians and practices in all 50 states working to improve clinical care and translate research findings into practice. This symposium contribution seeks to (1) describe some of the common shortcomings of clinical trials, (2) explore the opportunities and challenges posed by use of real-world evidence as a basis for drug and device regulation, (3) briefly describe the history and evolution of PBRNs, and (4) articulate the challenges and opportunities for using PBRNs to fulfill the 21st Century Cures Act mandate for real-world evidence.
More Related Videos
05:47Evidence-based Knowledge Synthesis and Hypothesis Validation: Navigating Biomedical Knowledge Bases via Explainable AI and Agentic Systems
Published on: June 13, 2025
09:49Divergence of Root Microbiota in Different Habitats based on Weighted Correlation Networks
Published on: September 25, 2021
Related Concept Videos
The Evidence for Evolution
Protein Networks
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Protein Networks
Network Covalent Solids
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
Characteristics of Practical Op Amps
The ratio of differential gain to the common-mode gain is defined as the common-mode rejection ratio (CMRR). This ratio quantifies the ability of operational amplifiers (op-amps) to reject common-mode...
Theoretical Foundations of Nursing Practice
Theories provide a perspective to assess patients' conditions and organize data and methods. They also assist in analyzing and interpreting information. They represent a...