Mass Balance Recovery, Metabolite Profile and Metabolite Identification of [14C]-MD1003 in Healthy Male Subjects

This single-center, open-label, non randomized Phase I study is being conducted to investigate the pharmacokinetics, mass balance and metabolite profiling and identification after a single oral dose of 100mg of \[14C\]-MD1003 in 6 healthy males subjects. The radioactivity will be followed in the blood, urine and faeces to study MD1003 metabolism.


Eligibility Criteria:
Inclusion Criteria:

1. Healthy males
2. Age 30 to 65 years of age at the time of signing informed consent
3. Body mass index (BMI) of 18.0 to 30.0 kg/m2 as measured at screening
4. Must be willing and able to communicate and participate in the whole study
5. Must have regular bowel movements (ie average stool production of ≥1 and ≤3 stools per day)
6. Must provide written informed consent
7. Must agree to adhere to the contraception requirements of the protocol

Exclusion Criteria:

1. Subjects who have received any IMP in a clinical research study within the 90 days prior to Day 1
2. Subjects who are study site employees, or immediate family members of a study site or sponsor employee
3. Subjects who have previously been enrolled in this study
4. History of any drug or alcohol abuse in the past 2 years
5. Regular alcohol consumption in males \>21 units per week (1 unit = ½ pint beer, or a 25 mL shot of 40% spirit, 1.5 to 2 Units = 125 mL glass of wine, depending on type)
6. A confirmed positive alcohol breath test at screening or admission
7. Current smokers and those who have smoked within the last 12 months. A confirmed breath carbon monoxide reading of greater than 10 ppm at screening or admission
8. Current users of e-cigarettes and nicotine replacement products and those who have used these products within the last 12 months
9. Subjects with pregnant or lactating partners
10. Radiation exposure, including that from the present study, excluding background radiation but including diagnostic X-rays and other medical exposures, exceeding 5 mSv in the last 12 months or 10 mSv in the last 5 years. No occupationally exposed worker, as defined in the Ionising Radiation Regulations 2017, shall participate in the study
11. Subjects who do not have suitable veins for multiple venepunctures/cannulation as assessed by the investigator or delegate at screening
12. Clinically significant abnormal clinical chemistry, haematology or urinalysis as judged by the investigator. Subjects with Gilbert's Syndrome are allowed
13. Confirmed positive drugs of abuse test result (drugs of abuse tests are listed in the protocol)
14. Positive hepatitis B surface antigen (HBsAg), hepatitis C virus antibody (HCV Ab) or human immunodeficiency virus (HIV) results
15. Evidence of renal impairment at screening, as indicated by an estimated creatinine clearance of \<80 mL/min using the Cockcroft-Gault equation
16. History of clinically significant cardiovascular, renal, hepatic, chronic respiratory or gastrointestinal disease, neurological or psychiatric disorder, as judged by the investigator
17. Serious adverse reaction or serious hypersensitivity to any drug or the formulation excipients
18. Presence or history of clinically significant allergy requiring treatment, as judged by the investigator. Hay fever is allowed unless it is active
19. Donation or loss of greater than 400 mL of blood within the previous 3 months
20. Subjects who are taking, or have taken, any prescribed or over-the-counter drug (other than 4 g of paracetamol per day), herbal remedies, vitamin B5 or dietary supplements containing lipoic acid in the 14 days before IMP administration. Exceptions may apply on a case by case basis, if considered not to interfere with the objectives of the study, as determined by the PI
21. Subjects who have had any intake of biotin (including as a nutritional supplement) in the 14 days before IMP administration
22. Failure to satisfy the investigator of fitness to participate for any other reason