N-acetylcysteine supplementation's effect on exercise performance

Assessment of the Impact of N-acetylcysteine Supplementation on Physical Performance Depending on the Polymorphism of Genes Related to Folate Metabolism

Not applicable Interventional Poznan University of Life Sciences · NCT05604586

This study is testing if taking N-acetylcysteine can help people who do endurance sports perform better, while also looking at how this might differ based on their genes.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment100 (estimated)
Ages18 Years to 45 Years
SexAll
SponsorPoznan University of Life Sciences Academic / other
Locations1 site (Poznań)
Trial IDNCT05604586 on ClinicalTrials.gov

What this trial studies

This study investigates whether N-acetylcysteine (NAC) supplementation can enhance exercise capacity in individuals engaged in endurance sports, and how this effect may vary based on specific gene polymorphisms related to folate and glutathione metabolism. It involves a double-blind, placebo-controlled design with 100 participants who will receive either NAC or a placebo for seven days. The study will assess exercise performance and biochemical parameters before and after the intervention, alongside blood sampling and body composition analysis.

Who should consider this trial

Good fit: Ideal candidates are healthy individuals aged 18 to 45 who train at least four times a week.

Not a fit: Patients with existing health conditions, such as blood disorders or respiratory diseases, or those who are pregnant or lactating may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved exercise performance and recovery strategies for athletes based on genetic profiles.

How similar studies have performed: While the specific combination of NAC supplementation and genetic polymorphism assessment is novel, previous studies have shown potential benefits of NAC in exercise performance.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Consent to participate in the study and acceptance of the established scheme for conducting the intervention
* age range between 18 and 45 years old
* regular training with a frequency of at least 4 times a week during the last year,

Exclusion Criteria:

* no consent to participate in the study and no acceptance of the established scheme of the conducted intervention
* existing diseases of the blood system and neoplastic diseases
* respiratory system diseases
* obesity
* any medical contraindications to exercise
* Results obtained from exercise tests that do not meet the inclusion criteria
* use of NAC during the last month
* allergy to NAC
* smoking
* pregnancy and lactation

Where this trial is running

Poznań

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Skeletal Muscle PerformanceGene PolymorphismsSport performancegene polymorphismN-acetylcysteine
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.