Study Evaluating ECG Effects, Safety, Tolerability and Pharmacokinetics of Single Doses of Modufolin (Arfolitixorin) in Healthy Volunteers Tetrahydrofolate in Healthy Male Volunteers

Inclusion Criteria

• Willing and able to provide a written informed consent for participation in the study.
• Healthy male subject aged 18-60 years inclusive.
• Body Mass Index (BMI) ≥ 18 and ≤ 30 kg/m2 and weight at least 50 kg and no more than 100 kg at screening and body surface area ≤ 2 m2
• Clinically normal medical history, physical findings, vital signs, ECG and laboratory values at the time of screening, as judged by the Investigator.
• Willing to use condom and highly effective contraceptive methods with a failure rate of 150 mm Hg
• Diastolic BP > 90 mm Hg
• Pulse 85 beats per min 6. Prolonged QTcF (>450 ms), cardiac arrhythmias or any clinically significant abnormalities in the resting ECG at the time of screening, as judged by the Investigator.
• History of severe allergy/hypersensitivity or on-going allergy/hypersensitivity, as judged by the Investigator, or history of hypersensitivity to drugs with a similar chemical structure or class to Modufolin® (i.e., folate derivatives). 8. Regular use of any prescribed or non-prescribed medication including antacids, analgesics, herbal remedies, vitamins and minerals within two weeks prior to the administration of IMP/placebo, except occasional intake of paracetamol (maximum 2000 mg/day; and not exceeding 3 000 mg/week), at the discretion of the Investigator and nasal decongestants without cortisone or antihistamine for a maximum of 10 days, at the discretion of the Investigator. 9. Regular use of any prescribed or non-prescribed medication which could influence folate and vitamin B12 status within 30 days prior to the administration of IMP/placebo.
• Administration of another new chemical entity (defined as a compound which has not been approved for marketing) or has participated in any other clinical study that included drug treatment with less than three months between administration of last dose and first dose of IMP/placebo in this study. Subjects consented and screened but not dosed in previous phase I studies are not excluded. 11. Current smokers or users of nicotine products. Irregular use of nicotine (e.g., smoking, snuffing, chewing tobacco) less than three times per week is allowed before screening visit. 12. Positive screen for drugs of abuse or alcohol at screening or on admission to the unit prior to administration of the IMP/placebo. 13. Current or history of alcohol abuse and/or use of anabolic steroids or drugs of abuse.
• Intake of xanthine and/or taurine containing energy drinks within two days prior to screening.
• Plasma donation within one month of screening or blood donation (or corresponding blood loss) during the three months prior to dosing. 16. Investigator considers the subject unlikely to comply with study procedures, restrictions and requirements.