Single and Multi-Dose Study, Pharmacokinetics of Oxycodone and PF614 Co-Administered With Nafamostat (PF614-MPAR-102)

Eligibility Criteria

• 1. Must be able to understand a written informed consent, which must be obtained prior to initiation of study procedures.
• 2. Must be willing and able to comply with all study requirements.
• 3. Aged 18 to 55 years, inclusive, at time of signing informed consent.
• 4. Must agree to use an adequate method of contraception (as defined in Section 9.4).
• 5. Healthy males or non pregnant, non lactating healthy females.
• 6. Body mass index (BMI) of 18.0 to 32.0 kg/m2 as measured at screening or, if outside the range, considered not clinically significant by the investigator.
• 7. Minimum weight of 50 kg at screening.
• 1. Serious adverse reaction or serious hypersensitivity to any drug or formulation excipients.
• 2. Presence or history of clinically significant allergy requiring treatment, as judged by the investigator. Hay fever is allowed unless it is active.
• 3. Significant serious skin disease, including rash, food allergy, eczema, psoriasis, or urticaria.
• 4. History of clinically significant cardiovascular, renal, hepatic, chronic respiratory or GI disease (Part 1 and Part 3 only: except cholecystectomy), gastrointestinal surgery (e.g. gastric bypass, gastric banding, colectomy), or neurological or psychiatric disorder, as judged by the investigator.
• 5. Subjects with a history of seizures.
• 6. Subjects with history of GI bleeding (excluding hemorrhoids) or history of peptic or duodenal ulcer disease.
• 7. Subjects with a history of bleeding disorders or coagulopathy.
• 8. Subjects with any personal history of arrhythmias or family history of significant cardiac disease (i.e., sudden death in first degree relative; myocardial infarction prior to 50 years old).
• 9. Part 2 only: Subjects with a history of cholecystectomy or gall stones.
• 10. Have poor venous access that limits phlebotomy.
• 11. Clinically significant abnormal clinical chemistry, hematology, coagulation or urinalysis as judged by the investigator (laboratory parameters are listed in Appendix 1). Subjects with Gilbert's Syndrome are allowed.
• 12. Subjects with a positive fecal occult blood test at screening or baseline (Part 3 only).
• 13. Subjects with a platelet count \<150,000/µL or international normalized ratio \>1.1 at screening.
• 14. Subjects with hemoglobin \<LLN at screening and/or first admission.
• 15. Subjects with a QT interval corrected using Fridericia's formula (QTcF) above 450 msec at screening and/or first admission.
• 16. Positive hepatitis B surface antigen (HBsAg), hepatitis C virus antibody (HCV Ab) or human immunodeficiency virus (HIV) antibody results.
• 17. Positive serum pregnancy test at screening or first admission. Those who are pregnant or lactating will be excluded.
• 18. Subjects who have received any IMP in a clinical research study within 5 half lives or within 30 days prior to first dose. However, in no event shall the time between last receipt of IMP and first dose be less than 30 days.
• 19. Subjects who have previously been administered IMP in this study.
• 20. Subjects who are taking, or have taken, any prescribed or over the counter drug or herbal remedies (other than up to 4 g per day acetaminophen, HRT or hormonal contraception) in the 14 days before study treatment administration (see Section 11.4). Exceptions may apply on a case by case basis, if considered not to interfere with the objectives of the study, as determined by the investigator.
• 21. Subjects with an anticipated need for requiring aspirin, non-steroidal anti-inflammatory drugs, or anticoagulants in the 14 days after administration of the IMP.
• 22. History of any drug or alcohol abuse in the past 2 years.
• 23. Regular alcohol consumption in males \>21 units per week and females \>14 units per week (1 unit = 12 oz 1 bottle/can of beer, 1 oz 40% spirit, or 5 oz glass of wine).
• 24. A confirmed positive alcohol urine test at screening or first admission.
• 25. Current smokers and those who have smoked within the last 12 months.
• 26. Current users of e-cigarettes and nicotine replacement products and those who have used these products within the last 12 months.
• 27. A confirmed positive urine cotinine test at screening or first admission.
• 28. Positive drug screen test result at screening or first admission (drug of abuse tests are listed in Appendix 1).
• 29. Male subjects with pregnant or lactating partners.
• 30. Donation of blood within 2 months or donation of plasma within 7 days prior to first dose of study treatment.
• 31. Subjects who are, or are immediate family members of, a study site or sponsor employee.
• 32. Failure to satisfy the investigator of fitness to participate for any other reason.