IMIM (Hospital del Mar Medical Research Institute)
Barcelona, 08003, Spain
NCT Number: NCT04189900
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 of indirect androgenic doping, whose purpose is to produce a sustained increase in endogenous testosterone.
Triptorelin acetate is a gonadotropin-releasing hormone (GnRH) agonist. Daily subcutaneous administration of triptorelin causes an initial increase in circulating levels of luteinizing hormone (LH) and follicle stimulating hormone (FSH), producing a transient increase in testosterone levels. However, prolonged daily administration results in a paradoxical decrease in LH and FSH levels due to desensitization of GnRH receptors, decreasing testosterone production to levels similar to castration.
Thus, the initial flare reaction produced by triptorelin administration could be used by athletes as an indirect androgenic doping method to stimulate the synthesis of endogenous LH and testosterone with the aim of improving physical performance.
Hypothesis:
Subcutaneous administration of triptorelin in healthy subjects allows obtaining positive urine samples that will be used to identify analytical strategies for doping detection. Triptorelin concentrations and its metabolites can be measured in urine.
Objectives:
Primary objective: To measure triptorelin concentrations in urine samples for anti-doping control.
Secondary objectives: To identify triptorelin metabolites in urine. To explore the time window in which the drug or its metabolites can be detected in urine after administration.
Methods:
Phase I, open, non-randomized, uncontrolled clinical trial, with a treatment condition (triptorelin) administered subcutaneously in a single dose to 2 subjects.
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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
Subjects receive a single subcutaneous dose of 0,1 mg of Triptorelin acetate.
Time frame: 0-4 hours post-administration
Concentration of triptorelin in urine sample (Fraction 1)
Time frame: 4-8 hours post-administration
Concentration of triptorelin in urine sample (Fraction 2)
Time frame: 8-12 hours post-administration
Concentration of triptorelin in urine sample (Fraction 3)
Time frame: 12-24 hours post-administration
Concentration of triptorelin in urine sample (Fraction 4)
Time frame: 24-48 hours post-administration
Concentration of triptorelin in urine sample (Fraction 5)
Time frame: 0-4 hours post-administration
Concentration of triptorelin metabolites in urine sample (Fraction 1)
Time frame: 4-8 hours post-administration
Concentration of triptorelin metabolites in urine sample (Fraction 2)
Time frame: 8-12 hours post-administration
Concentration of triptorelin metabolites in urine sample (Fraction 3)
Time frame: 12-24 hours post-administration
Concentration of triptorelin metabolites in urine sample (Fraction 4)
Time frame: 24-48 hours post-administration
Concentration of triptorelin metabolites in urine sample (Fraction 5)
Parc de Salut Mar
Other
Acronym: TRIPTO
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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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