Healthy Male Subjects Clinical Trial
Official title:
A Phase I, Open-label, Study of the Absorption, Metabolism and Excretion, of [14C]-Benznidazole (BNZ) Following a Single Oral Dose in Healthy Male Subjects
This Phase I ADME study will be conducted to evaluate the pharmacokinetics of benznidazole.
This will be a single-site, open-label, non-randomized, single oral dose absorption, metabolism and excretion study in healthy male subjects. Potential subjects will be screened to assess their eligibility to enter the study within 28 days prior to dosing on Day 1. Subjects will be admitted into the Clinical Research Unit (CRU) on Day -1. Subjects will be confined to the CRU until at least Day 11 (240 hours postdose), and will be discharged from the CRU on Day 11 if all the following discharge criteria are met: >90% mass balance recovery; OR plasma/blood radioactivity levels below the limit of quantitation for 2 consecutive collections; and <1% of the total radioactive dose recovered in combined excreta (urine and faeces) in 2 consecutive 24-hour periods. If these criteria are not met by Day 11, subjects will remain in the CRU until all discharge criteria are met up to a maximum of Day 15 to continue 24-hour blood, urine and faeces collections for the analysis of total radioactivity, unless otherwise agreed upon by the Sponsor and Investigator. If the discharge criteria are not met by Day 15, subjects may be asked to collect 24-hour excreta samples on up to 2 further occasions on a nonresidential basis to allow extrapolation of urinary and faecal excretion. If needed, the 2 additional 24-hour nonresidential collections will occur on Day 21 (±1 day) and Day 28 (±1 day). If on the second occasion the subject has still not met the desired criterion, then the subject will be discharged from the study, per Investigator and Sponsor decision. Pharmacokinetic samples and radioanalytical samples will be obtained through at least 240 hours postdose, and possibly up to 4 weeks postdose (radioanalytical samples only), in case of not meeting discharge criteria. Samples for metabolite profiling/identification will be obtained through 240 hours postdose. ;
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