Holding the Line: Sitting Down With Mario Thevis

At the forefront of anti-doping science, Mario Thevis reflects on evolving detection strategies, new classes of performance-enhancing drugs, and the growing complexity of keeping sport clean

By
James Strachan
June 11, 2026
8 min

The Analytical Scientist

Overview

Mario Thevis discusses his journey in anti-doping science, highlighting significant advancements in analytical methods and the ongoing challenges posed by evolving doping strategies. His contributions have been pivotal in developing detection methods for various substances, including gene doping.

Background

Anti-doping science is crucial for maintaining the integrity of sports and ensuring fair competition. The continuous evolution of doping methods necessitates ongoing advancements in detection techniques. Understanding drug metabolism and the development of sensitive analytical methods are essential for effective doping control.

Data Highlights

No numerical or trial data were provided in the source material.

Key Findings

Thevis has contributed to the development of methods for detecting plasma volume expanders and differentiating recombinant peptide-based drugs.
Recent advancements include a multiplexed gene doping testing panel combining PCR and mass spectrometry.
Detection windows for anabolic agents have been extended significantly due to improved analytical techniques.
Re-testing programs have led to additional adverse findings from past Olympic Games, highlighting the effectiveness of modern methods.
The complexity of doping control continues to increase, necessitating ongoing research and resource allocation.

Clinical Implications

The advancements in analytical chemistry have enhanced the ability to detect doping substances long after their use, which is critical for maintaining clean sport. Continuous updates to testing methods are necessary to keep pace with emerging doping strategies.

Conclusion

Mario Thevis's insights reflect the dynamic nature of anti-doping science and the importance of adapting to new challenges in the field. Ongoing research and innovation are vital for effective doping control.