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Search / Trial NCT04402658

Can Anti-asthmatic Medication Improve Sprint Performance in Healthy Endurance Athletes?

Launched by NORWEGIAN SCHOOL OF SPORT SCIENCES · May 20, 2020

Trial Information

Current as of July 21, 2025

Withdrawn

Keywords

Anaerobic Performance Athletes Doping Asthma Endurance Sports

ClinConnect Summary

Theoretical background:

The use of beta2-agonists in sports is restricted due to possible performance enhancing effects. The World Anti-Doping Agency's (WADA) prohibited list from January the 1st 2020 prohibits all use of beta2-agonists except inhaled salbutamol (maximum 1600 micrograms over 24 hours in divided doses not to exceed 800 micrograms over 12 hours starting from any dose), inhaled formoterol (maximum delivered dose of 54 micrograms over 24 hours) and inhaled salmeterol (maximum 200 micrograms over 24 hours).

Asthmatic athletes have consistently outperformed non-asthmatic athlet...

Gender

ALL

Eligibility criteria

  • Inclusion Criteria:
  • well trained cyclists and triathletes (VO2max in mLˑkg-1ˑmin-1 ≥ 65 male/55 female) who are actively engaged in endurance cycling training at least 4 times per week.
  • Exclusion Criteria:
  • a doctor diagnosed asthma and/or the use of anti-asthmatic medications the last 12 months prior to participation.

About Norwegian School Of Sport Sciences

The Norwegian School of Sport Sciences (NIH) is a leading research institution dedicated to advancing knowledge in the fields of sport, exercise, and health. With a strong emphasis on interdisciplinary collaboration, NIH conducts innovative clinical trials aimed at enhancing athletic performance, improving public health, and understanding the physiological and psychological impacts of physical activity. The institution is committed to fostering a rigorous scientific environment, promoting evidence-based practices, and contributing to the global discourse on sports science through high-quality research and education.

Locations

Patients applied

0 patients applied

Trial Officials

Julie S Stang, PhD

Principal Investigator

Norwegian School of Sport Sciences

Timeline

First submit

Trial launched

Trial updated

Estimated completion

Not reported

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