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Updated: Dec 6, 2025

A Standardized Liquid Biopsy Preanalytical Protocol for Downstream Circulating-Free DNA Applications
Published on: September 16, 2022
International liquid biopsy standardization alliance white paper
Dana Connors1, Jeff Allen2, J D Alvarez3
1Foundation for the National Institutes of Health, United States.
Precision medicine relies on genetic tools, with liquid biopsies offering a safe alternative to solid biopsies. The International Liquid Biopsy Standardization Alliance (ILSA) promotes global use of liquid biopsies in oncology.
Area of Science:
- Biomedical Science
- Oncology
- Genetics
Background:
- Precision medicine aims to tailor healthcare using genetic insights.
- Liquid biopsies are crucial for personalized medicine, offering a safer alternative to traditional tissue sampling.
Purpose of the Study:
- To provide an overview of programs within the International Liquid Biopsy Standardization Alliance (ILSA).
- To highlight the objectives, progress, and resources developed by ILSA-affiliated liquid biopsy and standardization initiatives.
- To describe the collaborative efforts and synergies among ILSA members.
Main Methods:
- Review of independent liquid biopsy and standardization programs.
- Analysis of objectives, progress, and developed tools and resources.
- Description of inter-programmatic synergy and unique contributions.
Main Results:
- ILSA unites diverse organizations focused on standardizing liquid biopsy.
- Multiple programs are developing tools and resources to advance liquid biopsy applications.
- Synergies exist within ILSA, fostering collaborative progress in the field.
Conclusions:
- Standardization of liquid biopsy is essential for the advancement of precision medicine.
- ILSA plays a key role in coordinating global efforts for liquid biopsy implementation in oncology.
- Collaborative initiatives are vital for realizing the full potential of liquid biopsies in clinical decision-making and regulatory processes.
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