IMIM (Hospital del Mar Medical Research Institute)
Barcelona, 08003, Spain
NCT Number: NCT04201054
Background:
Androgens are used for doping purpose because they can increase muscle mass and strength. These drugs are included in the list of prohibited substances of the World Anti-Doping Agency (WADA). The prohibition of its use has given rise to a great variety of strategies, including indirect androgenic doping (increasing endogenous testosterone production) or masking of exogenous testosterone administration.
Fluconazole is an imidazole antifungal that inhibits certain cytochrome P-450 dependent enzymes participating in the synthesis of steroid hormones. Concomitant fraudulent administration of testosterone and fluconazole may cause lower steroid concentrations in urine, leading to false negatives in the doping control. Thus, fluconazole may be used in athletes to mask exogenous steroid administration.
Hypothesis:
The oral administration of 12,5 mg of hydrochlorothiazide in healthy subjects allows generating detectable concentrations of the drug in urine. Positive urine samples will enable to identify analytical strategies for doping control.
Objectives:
Primary objective: To measure the concentrations of fluconazole in urine for anti-doping control samples.
Secondary objectives: To identify fluconazole metabolites in urine. To explore the time window in which the drug or its metabolites can be detected in urine after administration. To assess safety and tolerability of the drug used.
Methods:
Phase I, open, non-randomized clinical trial, with a treatment condition (fluconazole) administered in a single oral dose to 2 subjects.
Looking for future studies?
Notify Me18 year–45 year
Male
Interventional
Phase 1
Barcelona, 08003, Spain
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Exclusion criteria
50 mg of fluconazole administered orally in a single dose.
Time frame: 0-12 hours post-administration
Concentration of fluconazole in fraction-1 urine samples
Time frame: 12-24 hours post-administration
Concentration of fluconazole in fraction-2 urine samples
Time frame: 24-48 hours post-administration
Concentration of fluconazole in fraction-3 urine samples
Time frame: 48-72 hours post-administration
Concentration of fluconazole in fraction-4 urine samples
Time frame: 0-12 hours post-administration
Concentration of fluconazole metabolites in fraction-1 urine samples
Time frame: 12-24 hours post-administration
Concentration of fluconazole metabolites in fraction-2 urine samples
Time frame: 24-48 hours post-administration
Concentration of fluconazole metabolites in fraction-3 urine samples
Time frame: 48-72 hours post-administration
Concentration of fluconazole metabolites in fraction-4 urine samples
Parc de Salut Mar
Other
Acronym: FLUC
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View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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