Drug-Food Interaction Study of Seville Orange Juice and Colchicine

A One-Directional, Open-Label Drug-Food Interaction Study to Investigate the Effects of Multiple-Daily Consumptions of Seville Orange Juice on the Single-Dose Pharmacokinetics of Colchicine in Healthy Volunteers

Seville orange juice is an inhibitor of the intestinal cytochrome P450 (CYP) 3A4 enzyme, one of the enzymes responsible for the metabolism of colchicine. This study will evaluate the effect of multiple daily consumptions of Seville orange juice on the pharmacokinetic profile of a single 0.6 mg dose of colchicine. A secondary objective is to evaluate the safety and tolerability of this regimen in healthy volunteers. All study subjects will be monitored for adverse events throughout the study period.

Study Overview

• Status: Completed
• Conditions: Healthy
• Intervention / Treatment: Drug: Colchicine; Other: Seville Orange Juice

Detailed Description

Seville orange juice is an inhibitor of the intestinal cytochrome P450 (CYP) 3A4 enzyme, one of the enzymes responsible for the metabolism of colchicine. This study will evaluate the effect of multiple daily consumptions of Seville orange juice on the pharmacokinetic profile of a single 0.6 mg dose of colchicine. Twenty-four healthy, non-smoking, non-obese, non-pregnant adult volunteers between the ages of 18 and 45 will be given one dose of colchicine (1 x 0.6 mg tablet) on Day 1, after an overnight fast. Fasting will continue for 4 hours after the dose. Blood samples will be drawn from all participants before dosing and for 24 hours post-dose to adequately define the baseline pharmacokinetics of colchicine. After a 14 day washout period, starting on the morning of Day 15 and continuing through Day 17, subjects will return to the clinic for consumption of an administered 240 ml dose of Seville orange juice in the morning and evening. At 8am on Day 18 after an overnight fast, all subjects will receive a co-administered single oral dose of colchicine (1 x 0.6 mg) and Seville orange juice (1 x 240 ml). Fasting will continue for 4 hours after the dose. Blood samples will be drawn from all participants before dosing and for 24 hours post-dose to adequately define the pharmacokinetics of colchicine in the presence of Seville orange juice. Subjects will consume the final administered 240 ml dose of Seville orange juice in the evening on Day 18. A further goal of this study is to evaluate the safety and tolerability of this regimen in healthy volunteers. Subjects will be monitored throughout participation in the study for adverse reactions to the study drug and/or procedures. Seated blood pressure and pulse will be measured prior to dosing and at approximately 1, 2, and 3 hours following drug administration on Days 1 and 18 to coincide with peak plasma concentrations of colchicine. All adverse events whether elicited by query, spontaneously reported, or observed by clinic staff will be evaluated by the investigator and reported in the subject's case report form.

• Study Type: Interventional
• Enrollment (Actual): 24
• Phase: Phase 1

Contacts and Locations

Study Locations

• United States
  • North Dakota
    • Fargo, North Dakota, United States, 58104
      • PRACS Institute, Ltd. - Cetero Research

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 45 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Healthy adults 18-45 years of age
• Non-smoking and non-pregnant (post-menopausal, surgically sterile or using effective contraceptive measures)
• Body mass index (BMI) greater than or equal to 18 and less than or equal to 32, inclusive
• Hemoglobin greater than or equal to 11.5g/dL

Exclusion Criteria:

• Recent participation (within 28 days) in other research studies
• Recent significant blood donation or plasma donation
• Pregnant or lactating
• Test positive at screening for human immunodeficiency virus (HIV), hepatitis B surface antigen (HbsAg), or hepatitis C virus (HCV)
• Recent (2-year) history or evidence of alcoholism or drug abuse
• History or presence of significant cardiovascular, pulmonary, hepatic, gallbladder or biliary tract, renal, hematologic, gastrointestinal, endocrine, immunologic, dermatologic, neurologic, or psychiatric disease
• Subjects who have used any drugs or substances known to inhibit or induce cytochrome (CYP) P450 enzymes and/or P-glycoprotein (P-gp) within 28 days prior to the first dose and throughout the study
• Drug allergies to colchicine
• Intolerance or food allergy to Seville orange juice

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Basic Science
• Allocation: Non-Randomized
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Colchicine Alone; baseline colchicine pharmacokinetics	Drug: Colchicine; A single dose of 0.6 mg colchicine administered alone in the morning on Day 1 and a single dose of 0.6 mg colchicine administered with Seville orange juice in the morning on Day 18 after an overnight fast of at least 10 hours.
Experimental: Colchicine with Seville Orange Juice; colchicine pharmacokinetics in presence of Seville orange juice	Drug: Colchicine; A single dose of 0.6 mg colchicine administered alone in the morning on Day 1 and a single dose of 0.6 mg colchicine administered with Seville orange juice in the morning on Day 18 after an overnight fast of at least 10 hours.; Other: Seville Orange Juice; 240 mL of Seville orange juice administered in the morning and evening on Days 15 to 18.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Maximum Plasma Concentration (Cmax) of Colchicine	The maximum or peak concentration that colchicine reaches in the plasma.	serial pharmacokinetic blood samples drawn immediately prior to colchicine dosing on Days 1 and 18, and then 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12 and 24 hours after colchicine dose administration.
Area Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]	The area under the plasma concentration versus time curve, from time 0 to the time of the last measurable colchicine concentration (t), as calculated by the linear trapezoidal rule.	Serial pharmacokinetic blood samples drawn immediately prior to colchicine dosing on Days 1 and 18, and then 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12 and 24 hours after colchicine dose administration.
Area Under the Concentration Versus Time Curve From Time 0 Extrapolated to Infinity [AUC(0-∞)]	The area under the plasma concentration versus time curve from time 0 to infinity. AUC(0-∞) was calculated as the sum of AUC(0-t) plus the ratio of the last measurable colchicine plasma concentration to the elimination rate constant.	Serial pharmacokinetic blood samples drawn immediately prior to colchicine dosing on Days 1 and 18, and then 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12 and 24 hours after colchicine dose administration.

Collaborators and Investigators

• Sponsor: Mutual Pharmaceutical Company, Inc.

Publications and helpful links

General Publications

• Wason S, DiGiacinto JL, Davis MW. Effects of grapefruit and Seville orange juices on the pharmacokinetic properties of colchicine in healthy subjects. Clin Ther. 2012 Oct;34(10):2161-73. doi: 10.1016/j.clinthera.2012.08.007. Epub 2012 Aug 31.

Helpful Links

• Recalls, Market Withdrawals and Safety Alerts
• Daily Med - Posting of Recently Submitted Labeling to the FDA

Study record dates

Study Major Dates

• Study Start: February 1, 2009
• Primary Completion (Actual): April 1, 2009
• Study Completion (Actual): April 1, 2009

Study Registration Dates

• First Submitted: August 13, 2009
• First Submitted That Met QC Criteria: August 14, 2009
• First Posted (Estimate): August 17, 2009

Study Record Updates

• Last Update Posted (Estimate): June 8, 2011
• Last Update Submitted That Met QC Criteria: June 6, 2011
• Last Verified: June 1, 2011

More Information

Terms related to this study

• Keywords: pharmacokinetics; colchicine; blood levels over time; seville orange juice
• Additional Relevant MeSH Terms: Molecular Mechanisms of Pharmacological Action; Antirheumatic Agents; Antineoplastic Agents; Tubulin Modulators; Antimitotic Agents; Mitosis Modulators; Gout Suppressants; Colchicine
• Other Study ID Numbers: MPC-004-08-1018