| Eligibility |
Inclusion Criteria:
1. Subject has been informed both verbally and in writing about the objectives of the
clinical trial, the methods, the anticipated benefits and potential risks and the
discomfort to which they may be exposed and has given written consent to participation
in the trial prior to trial start and any trial-related procedure.
2. Healthy male and female subjects of any ethnic origin, aged between 18 and 45 years
(inclusive). Assessed as healthy based on a Screening examination including medical
history, physical examination, blood pressure, pulse rate, ECG assessment, and
clinical laboratory results.
3. Male subjects not planning to father or to donate sperms for in vitro fertilization
during the trial and for at least 3 months after dosing of trial medication. Adequate
contraception (see below) must be used during sexual intercourse with women of
childbearing potential to make sure the fathering of a child will be ruled out during
the trial and during the 3 months after dosing of trial medication.
Women of childbearing potential have to perform adequate contraception. They should
also not donate ova during the trial and for at least 3 months after dosing of trial
medication.
Adequate contraception is defined as a combination of a highly effective method of
birth control and additional barrier contraception. Highly effective method of birth
control is defined as follows: combined (estrogen and progesterone) oral
contraceptives, combined hormonal vaginal rings, hormone implants, hormone
injectables, or intrauterine device that need to be in place for a period of at least
2 months prior to Screening and continue for at least 3 months after dosing of trial
medication. Additional barrier contraception (the following methods are allowed:
condom of the male, diaphragm with spermicide, cervical cap with spermicide) must be
used for the duration of the trial, defined as from the time of Screening to the End
of Trial examination, and for at least 3 months after dosing of trial medication. A
single barrier method alone or abstinence alone is not acceptable. Homosexual female
subjects who refrain from heterosexual intercourse for at least 3 months prior to
Screening may be included without a contraceptive method if they agree to further
refrain from heterosexual intercourse until the End of Trial examination, and for at
least 3 months after dosing of trial medication.
Women of non-childbearing potential may be included if surgically sterile (documented
complete hysterectomy, supracervical hysterectomy or bi-tubal ligations; partial
hysterectomy is not sufficient) or if postmenopausal (who have a history of no menses
of at least 24 months at screening and postmenopausal status confirmed by follicle
stimulating hormone [FSH] test at screening).
4. In women, negative serum ß-HCG (beta-human chorionic gonadotropin) test at Screening
and negative urine ß-HCG test on Day -2.
5. Subject agrees to pharmacogenomic blood sampling.
6. Subject must be willing and able to swallow up to 4 tablets (pritelivir or matching
placebo) and 1 capsule (over-encapsulated moxifloxacin or matching placebo) at least
twice during the trial.
7. Normal body weight as evidenced by a Body Mass Index (BMI) =18.0 and =25.0 kg/m2, and
a body weight =50.0 kg at Screening.
8. Subjects must have a negative test result for HIV-I- and -II-antibody, HBsAg,
anti-hepatitis B core antigen (HBc) (IgG + IgM) and anti-hepatitis C virus (HCV) at
Screening.
9. Subjects must have negative urine tests for drugs of abuse (benzodiazepines, opiates,
amphetamines, methadone, cocaine, cannabinoids, barbiturates, cotinine) and negative
breath alcohol tests at Screening and Admission for the in-house phase (Day -2).
10. Normal triplicate 12-lead ECG measured after 10 minutes in the supine position at
screening and on admission on Day -2 showing regular sinus rhythm with a well-defined
end of T.
11. Normal 24-hour 12-lead ECG at screening.
Exclusion Criteria:
1. History or current evidence of clinically relevant allergies or idiosyncrasy to drugs
or food.
2. History of any moderate or severe allergy or any known allergy to any active or
inactive ingredient(s) of moxifloxacin investigational medicinal product (IMP),
pritelivir IMP, or their respective matching placebos.
3. Any special dietary requirements that would prevent the consumption of standardized
meals.
4. History or current evidence of any clinically relevant cardiovascular, pulmonary,
hepatic, renal, gastrointestinal, hematologic, endocrine, metabolic, neurological,
psychiatric, or other disease suspected to influence pharmacokinetics or safety of the
IMP.
5. History or any current evidence of a dermatological condition requiring treatment by a
general practitioner (GP) or specialist (with the exception of burns, fungal
infections, and/or warts).
6. Any other significant disease or disorder which, in the opinion of the Investigator,
may either put the subject at risk because of participation in the trial, or may bias
the result of the trial or the subject's ability to participate in the trial.
7. History of malignancy.
8. Has vital signs consistently outside of normal range at screening or Day -1.
Acceptable normal range is as follows:
- supine heart rate (HR) 40 - 100 bpm (after at least five minutes of supine rest)
- supine blood pressure (after at least five minutes of supine rest):
- systolic blood pressure: 90 - 130 mmHg
- diastolic blood pressure: 40 - 90 mmHg
9. The history or presence of any of the following cardiac conditions: known structural
cardiac abnormalities; family history of long QT syndrome; cardiac syncope or
recurrent, idiopathic syncope; exercise-related clinically significant cardiac events;
known cardiovascular disease.
10. Consistent abnormal interval readings for PR, QRS and QTc intervals (PR <120ms or
>210ms, QRS >120ms or QTcF >450ms for males and >470ms for females).
11. Transient fascicular blocks, undue ectopic burden, junctional rhythm and any other ECG
findings which may in the opinion of the Investigator make a subject unsuitable for
inclusion in this clinical trial.
12. Chronic or clinically relevant acute infections or febrile illness within 5 days prior
to administration of the IMP.
13. Clinically relevant abnormalities in serum chemistry, haematology and coagulation
parameters, urinalysis. Specifically:
- Participants with transaminases (AST/ALT) above ULN or total bilirubin x1.5 ULN,
at Screening.
- Hemoglobin below lower limit of normal (LLN) at Screening.
- Platelet count below LLN at Screening.
- White Blood Count above upper limit of normal (ULN) at Screening.
- Participants with urinalysis indicative of underlying infection/pathology at
Screening.
14. Magnesium or potassium outside normal range in safety laboratory
15. Subject is lactating or breastfeeding.
16. Subject has received or is planning to receive a COVID-19 vaccination within 4 weeks
before first dose administration, or within one week after trial completion. Subject
must also comply with the latest COVID-19 safety measures/testing applicable at the
site at that time, for entry into the unit and during in-house stays.
Note: COVID-19 tests will be carried out at regular intervals, prior to entry in the
unit and throughout the residential period as per the latest Richmond Pharmacology
COVID-19 Infection Control Guidelines and pre-entry algorithms.
17. Use of any medication (incl. over-the-counter medication) within 2 weeks before dosing
on Day 1 or within less than 10 times the elimination half-life of the respective
drug, or anticipated concomitant medication during the treatment period. Exceptions
may be the use of hormonal contraception and hormone replacement therapy as well as
single intake of a drug if judged by the Investigators to have no clinical relevance
and no relevance for the trial objectives. Eg, limited amounts of paracetamol are
allowed to treat painful intercurrent adverse events (eg, headache, migraine).
18. Consumption of methylxanthine-containing beverages or food (coffee, tea, cola,
chocolate, "powerdrinks") from 24 h before dosing on Day -1 until discharge.
19. Consumption of alcohol and tobacco products within 48 h prior to admission to the
clinic until discharge.
20. Diseases or surgery of the gastrointestinal tract which may interfere with drug
absorption (note: this is not applicable for minor abdominal surgery such as eg,
appendectomy and herniotomy).
21. Treatment with an investigational drug within 90 days or 5 half-lives preceding the
first dose of trial medication (or as determined by the local requirement, whichever
is the longer).
22. Donation of blood or blood products (excluding plasma) within 90 days prior to trial
medication administration.
23. Smoking of more than 10 cigarettes/cigars/pipes per day and/or inability to refrain
from smoking during confinement.
24. History or clinical evidence of substance and/or alcohol abuse within the 2 years
before screening. Alcohol abuse is defined as regular weekly intake of more than 14
units (for both males and females), using the following National Health Service (NHS)
alcohol tracker
https://www.nhs.uk/oneyou/for-your-body/drink-less/know-your-alcohol-units/
25. Has any finding that, in the view of the Investigator, would compromise the subject's
safety requirements or their ability to comply with all the trial requirements.
26. Not able to communicate meaningfully with the Investigator and site staff.
27. Lack of ability or willingness to give informed consent.
28. Participation in an earlier clinical trial with pritelivir.
29. Vulnerable subjects (eg, persons kept in detention).
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