OXN PR Tablet 5/2.5 mg and20/10 mg PK Study in Chinese Moderate to Severe Chronic Non-malignant Patients

Study Overview
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Brief Summary
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This is an open-label, randomized, single-dose, parallel group study. The objectives of this study are to assess pharmacokinetics of oxycodone and naloxone from oxycodone/naloxone (OXN) prolonged release (PR) tablet 5/2.5 mg (OXN 5/2.5) and 20/10 mg (OXN 20/10) in Chinese patients with moderate to severe chronic non-malignant pain.

Detailed Description
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It will be conducted to assess the pharmacokinetics of OXN 5/2.5 and OXN 20/10 tablets. Subjects will be allocated to a sequence of two strength group in accordance with a random allocation schedule (RAS) in a 1:1 ratio. Subjects will attend a screening visit within 14 days of the first (OXN) dosing day (Day 1). Eligible subjects will then check into the study unit on the day before OXN dosing (Day -2). Subjects will be administered their OXN dose the next 2 morning (Day 1), following an overnight fast.

Official Title
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An Open-label, Randomized, Single-dose, Parallel Group Study to Investigate the Pharmacokinetics of Oxycodone and Naloxone From OXN 5/2.5 and OXN 20/10 in Chinese Patients With Moderate to Severe Chronic Non-malignant Pain

Conditions
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Chronic Pain

Intervention / Treatment
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* Drug: OXN PR tablet


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adult Chinese patients with moderate to severe chronic non-malignant pain. Male and female subjects with age range 18 to 65 years (including 18 and 65), body weight ≥ 45kg and BMI range 18 to 30 (including 18 and 30). Patients who should rate their pain (Pain Intensity Scale -average pain over the last 24 hours) as ≥4 on 0-10 scale. Patients, who are able to read, understand and sign written informed consent prior to study participation and are willing to follow the protocol requirements. Females of childbearing potential and less than one year post-menopausal must have a negative serum pregnancy test during screening visit and at check-in and be non-lactating. In addition, they must be willing to use adequate and reliable contraception throughout the study. Highly effective methods of birth control are defined as those which result in a low failure rate (i.e. less than 1% per year) when used consistently and correctly such as sterilization, implants, injectables, combined oral contraceptives, some IUDs (intrauterine Device, hormonal), sexual abstinence or vasectomised partner. Exclusion Criteria: Females who are pregnant (positive β-human chorionic gonadotrophin [HCG] test) or lactating. Use of opioid or opioid antagonist-containing medication in the 30 days before the start of the study. Known sensitivity to oxycodone, naloxone, or related compounds. Subjects with clinically unstable respiratory disease, dysfunction of the biliary tract, thyroid disease, adrenal cortical insufficiency, prostatic hypertrophy requiring intervention (medication or surgical) or renal artery stenosis, or any other medical condition, that, in the opinion of the investigator or the sub-investigator, precludes entry into this study. Subject who have a past (within 5 years) history of malignant neoplasm including leukemia and lymphoma. The electrocardiogram examination results are abnormal, in the opinion of the investigator or the sub-investigator, and are clinical significance. Subjects with abnormal liver function (values exceed the upper limit of normal for AST, ALT or total bilirubin during the Screening Period) or abnormal renal function (values exceed the upper limit of normal for serum creatinine during the Screening Period). Patients with a contraindication to the study medication. Subjects who have a psychiatric disorder such that participation in the study may, in the opinion of the investigator or the sub-investigator, pose an unacceptable risk to the subject. Subjects who have a current or past (within 5 years) history of substance or alcohol abuse, or subjects who give a positive result in drug abuse test during the Screening Period, or subjects who, in the opinion of the investigator or the sub-investigator, have demonstrated addictive or substance abuse behaviors. Subjects with uncontrolled seizures or convulsive disorder. Subjects who will receive any interventional therapy (surgery, paracentesis,etc) for arthritis during the study period. History of or any current conditions that might have interfered with drug absorption, distribution, metabolism or excretion. Any history of frequent nausea or emesis regardless of aetiology. Participation in any clinical drug study during the 3 months preceding the initial dose in this study. Use of any medication including vitamins, herbal and/or mineral supplements during the course of the study, other than Vitamin D, calcium supplements and continued use by females of contraceptive medication or HRT. Consumption of alcoholic beverages within 48 hours before study drug administration, and refusal to abstain from alcohol until at least 48 hours after the last study drug administration. Blood or blood products donated within 90 days prior to study drug administration or anytime during the study, except as required by this protocol. Positive results of urine drug screen(for opioids, barbiturates, amphetamines, cocaine metabolites, methadone, diazepam and cannabinoids), alcohol breath test, hepatitis B surface antigen (HBsAg), hepatitis C virus antibody (Ab), human immunodeficiency virus (HIV) test or qualitative syphilis tests. Patients with moderate to severe hypohemia (HGB<90g/L during the screening).

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: OXN prolonged release tablet 5/2.5mg<br>The subjects were randomized to receive a single dose of OXN prolonged release tablet 5/2.5mg for one time. | Drug: OXN PR tablet<br>* Orally administered OXN PR tablet 5/2.5 mg or OXN PR tablet 20/10 mg<br>* Other names: Targin;|
| Experimental: OXN prolonged release tablet 20/10mg<br>The subjects were randomized to receive a single dose of OXN prolonged release tablet 20/10 mg for one time. | Drug: OXN PR tablet<br>* Orally administered OXN PR tablet 5/2.5 mg or OXN PR tablet 20/10 mg<br>* Other names: Targin;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| AUC0-48hr of Noroxycodone Plasma Concentration. | AUC0-48hr of Noroxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg will be analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone and metabolites in Chinese patients. | 
| AUC0-t of Noroxycodone Plasma Concentration | AUC0-t of Noroxycodone plasma concentration.Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg will be analyzed .(If the extrapolated area of AUC is larger than 20% of AUCinf, i.e. AUC0-t/AUCinf < 0.8, then the elimination-related PK parameters (AUCinf, T1/2, Lambda_z) will not be adopted and will not be included in any statistical analysis. ) | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone and metabolites in Chinese patients. | 
| AUC_%Extrap of Noroxycodone Plasma Concentration | AUC_%Extrap of Noroxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUCinf of Noroxycodone Plasma Concentration | AUCinf of Noroxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Cmax of Noroxycodone Plasma Concentration | Cmax of Noroxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Lambda_z of Noroxycodone Plasma Concentration | Lambda_z of Noroxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| T1/2 of Noroxycodone Plasma Concentration | T1/2 of Noroxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Tmax of Noroxycodone Plasma Concentration | Tmax of Noroxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-48hr of Noroxymorphone Plasma Concentration | AUC0-48hr of Noroxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-t of Noroxymorphone Plasma Concentration | AUC0-t of Noroxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC_%Extrap of Noroxymorphone Plasma Concentration | AUC_%Extrap of Noroxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUCinf of Noroxymorphone Plasma Concentration | AUCinf of Noroxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Cmax of Noroxymorphone Plasma Concentration | Cmax of Noroxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Lambda_z of Noroxymorphone Plasma Concentration | Lambda_z of Noroxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| T1/2 of Noroxymorphone Plasma Concentration | T1/2 of Noroxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Tmax of Noroxymorphone Plasma Concentration | Tmax of Noroxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-48hr of Oxycodone Plasma Concentration | AUC0-48hr of Oxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-t of Oxycodone Plasma Concentration | AUC0-t of Oxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC_%Extrap of Oxycodone Plasma Concentration | AUC_%Extrap of Oxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUCinf of Oxycodone Plasma Concentration | AUCinf of Oxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Cmax of Oxycodone Plasma Concentration | Cmax of Oxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Lambda_z of Oxycodone Plasma Concentration | Lambda_z of Oxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| T1/2 of Oxycodone Plasma Concentration | T1/2 of Oxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Tmax of Oxycodone Plasma Concentration | Tmax of Oxycodone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-48hr of Oxymorphone Plasma Concentration | AUC0-48hr of Oxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-t of Oxymorphone Plasma Concentration | AUC0-t of Oxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC_%Extrap of Oxymorphone Plasma Concentration | AUC_%Extrap of Oxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUCinf of Oxymorphone Plasma Concentration | AUCinf of Oxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Cmax of Oxymorphone Plasma Concentration | Cmax of Oxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Lambda_z of Oxymorphone Plasma Concentration | Lambda_z of Oxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| T1/2 of Oxymorphone Plasma Concentration | T1/2 of Oxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Tmax of Oxymorphone Plasma Concentration | Tmax of Oxymorphone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-48hr of 6-B-Naloxol Plasma Concentration | AUC0-48hr of 6-B-Naloxol plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-t of 6-B-Naloxol Plasma Concentration | AUC0-t of 6-B-Naloxol plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC_%Extrap of 6-B-Naloxol Plasma Concentration | AUC_%Extrap of 6-B-Naloxol plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUCinf of 6-B-Naloxol Plasma Concentration | AUCinf of 6-B-Naloxol plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Cmax of 6-B-Naloxol Plasma Concentration | Cmax of 6-B-Naloxol plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Lambda_z of 6-B-Naloxol Plasma Concentration | Lambda_z of 6-B-Naloxol plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| T1/2 of 6-B-Naloxol Plasma Concentration | T1/2 of 6-B-Naloxol plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Tmax of 6-B-Naloxol Plasma Concentration | Tmax of 6-B-Naloxol plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-48hr of NLLG Plasma Concentration | AUC0-48hr of NLLG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-t of NLLG Plasma Concentration | AUC0-t of NLLG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC_%Extrap of NLLG Plasma Concentration | AUC_%Extrap of NLLG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUCinf of NLLG Plasma Concentration | AUCinf of NLLG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Cmax of NLLG Plasma Concentration | Cmax of NLLG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Lambda_z of NLLG Plasma Concentration | Lambda_z of NLLG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| T1/2 of NLLG Plasma Concentration | T1/2 of NLLG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Tmax of NLLG Plasma Concentration | Tmax of NLLG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-48hr of NLXG Plasma Concentration | AUC0-48hr of NLXG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-t of NLXG Plasma Concentration | AUC0-t of NLXG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC_%Extrap of NLXG Plasma Concentration | AUC_%Extrap of NLXG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUCinf of NLXG Plasma Concentration | AUCinf of NLXG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Cmax of NLXG Plasma Concentration | Cmax of NLXG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Lambda_z of NLXG Plasma Concentration | Lambda_z of NLXG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| T1/2 of NLXG Plasma Concentration | T1/2 of NLXG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Tmax of NLXG Plasma Concentration | Tmax of NLXG plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-48hr of Naloxone Plasma Concentration | AUC0-48hr of Naloxone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC0-t of Naloxone Plasma Concentration | AUC0-t of Naloxone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUC_%Extrap of Naloxone Plasma Concentration | AUC_%Extrap of Naloxone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| AUCinf of Naloxone Plasma Concentration | AUCinf of Naloxone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Cmax of Naloxone Plasma Concentration | Cmax of Naloxone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Lambda_z of Naloxone Plasma Concentration | Lambda_z of Naloxone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| T1/2 of Naloxone Plasma Concentration | T1/2 of Naloxone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 
| Tmax of Naloxone Plasma Concentration | Tmax of Naloxone plasma concentration. Plasma concentrations of OXN 5/2.5 mg and OXN 20/10mg Will be Analyzed. | Pre-dose, 0.5h, 1.0h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h, 5h, 6h, 7h, 8h, 10h, 12h, 14h, 24h, 28h, 32h, 36h, and 48h Post Dose blood sampling to determine the PK of oxycodone, naloxone and metabolites in Chinese patients. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Moderate to severe chronic non-malignant pain