A Phase I clinical trial to assess the safety, tolerability, and pharmacokinetics of NTP42:KVA4 following oral administration in a randomized, double-blind, placebo-controlled trial. The trial will involve of 2 phases, a single ascending dose (SAD) phase and a multiple ascending dose (MAD) phase. The SAD phase will incorporate a food effect arm.

Inclusion Criteria:

• A body mass index (BMI) in the range 18.0-30.0.
• Ability & willingness to provide written consent.

Exclusion Criteria:

• Clinically relevant abnormal medical history, physical findings, laboratory values at pre-trial screening.
• History of bleeding disorders, coagulation variables or abnormal blood cell count.
• History of chronic illness.
• Impaired endocrine, thyroid, hepatic, renal or respiratory function, diabetes mellitus, coronary heart disease or history of any psychotic mental illness.
• History of adverse reaction or allergy to any drug.
• Use of aspirin, other non-steroidal anti-inflammatory drugs (NSAIDs), or any other medicine that affects platelet function or coagulation, or any prescription medicine, during the 28 days before the first dose of trial medication.
• History of drug or alcohol abuse
• Smoker or use of nicotine-containing products
• Blood pressure or heart rate at screening outside normal ranges.