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Evaluating the Early Operational Performance of the Endocrine Module in the Athlete Biological Passport
Miguel de Figueiredo1, Alexandre Marchand2, Damien Rhumorbarbe1
1International Testing Agency, Lausanne, Switzerland.
Drug Testing and Analysis
|April 8, 2025
Summary
The International Testing Agency implemented the Endocrine Module for the Olympic Games Paris 2024, evaluating its early integration into Athlete Biological Passport (ABP) programs. This data-driven assessment offers insights for enhancing anti-doping efforts.
Area of Science:
- Sports Science
- Anti-Doping Analytics
- Biotechnology
Background:
- The Athlete Biological Passport (ABP) is crucial for monitoring doping in sports.
- Integrating novel testing modules enhances the ABP's effectiveness.
- The Endocrine Module aims to expand the scope of biological monitoring.
Purpose of the Study:
- To evaluate the early implementation of the Endocrine Module within ABP programs.
- To identify challenges and opportunities in endocrine profile testing.
- To provide recommendations for the future development of the Endocrine Module and its synergy with other ABP modules.
Main Methods:
- Data-driven evaluation of the Endocrine Module's integration.
- Analysis of the complete ABP sample lifecycle: collection to reporting.
- Integration of testing, analytical, and ABP perspectives.
Main Results:
- Early integration of the Endocrine Module presents specific challenges and opportunities.
- The module's performance is assessed across the entire sample management process.
- Synergies with haematological and steroidal modules were explored.
Conclusions:
- The Endocrine Module shows potential for enhancing ABP programs.
- Recommendations are provided for optimizing endocrine testing and its integration.
- Further development is needed to maximize the module's contribution to anti-doping.

