Bioavailability Study of Colcrys® in Apple Juice

Study Overview
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Brief Summary
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The purpose of this study is to evaluate and compare the relative bioavailability of a single 0.6 mg tablet of Colcrys® (colchicine, USP) when crushed and dissolved in apple juice relative to the same dose given as an intact tablet to healthy subjects following an overnight fast.

Detailed Description
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The purpose of this study is to evaluate and compare the relative bioavailability of a single 0.6 mg tablet of Colcrys® (colchicine, USP) when crushed and dissolved in apple juice relative to the same dose given as an intact tablet to healthy subjects following an overnight fast. Sixteen healthy, non-smoking, non-obese, male and female volunteers between 18-55 years of age will be randomly assigned in a crossover fashion to receive each of two dosing regimens in sequence with a 14 day washout period between dosing periods. In each of the dosing periods, after an overnight fast, subjects will receive one intact Colcrys® 0.6 mg tablet (followed by 240 mL of water) or one Colcrys® 0.6 mg tablet crushed and dissolved in 20 mL of apple juice (followed by 220 mL of water) according to the randomization schedule. Blood samples will be drawn from all participants before dosing and for 48 hours post-dose at times sufficient to adequately define the pharmacokinetics of colchicine. Vital signs (blood pressure, heart rate, respiratory rate, and temperature) will be measured prior to dosing and at 1 hour ± 30 minutes post dose. Subjects will be monitored throughout their participation in the study for adverse reactions.

Official Title
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A Pilot Bioavailability Study of Colcrys® Tablet 0.6 mg Versus Colcrys® Tablet 0.6 mg Crushed and Dissolved in Apple Juice Under Fasting Conditions

Conditions
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Healthy

Intervention / Treatment
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* Drug: colchicine 0.6 mg tablet
* Drug: colchicine 0.6 mg tablet


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Healthy adults age 18-55, non-smoking, non- pregnant (post-menopausal, surgically sterile or using effective contraceptive measures) with a body mass index of 18-30 kg/m² Exclusion Criteria: Recent participation (within 30 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) History of treatment for drug or alcohol addiction within the previous 12 months or use of tobacco products within 90 days of the start of the study Significant history or current evidence of chronic infectious disease, system disorders, organ dysfunction, especially cardiovascular disorders (angina, heart failure, irregular heartbeats, heart attack, hypertension, hypotension) stroke, renal or hepatic disorders, diabetes or bleeding disorders, gastrointestinal disease or history of malabsorption within the last year History of or psychiatric disorders occurring within the last two years that required hospitalization or medication Presence of a medical condition requiring regular treatment with prescription drugs Use of any drugs or substances known to inhibit or induce drug-metabolizing enzymes within 30 days prior to dosing with the study drug Drug allergies or sensitivity to colchicine Positive test results for drugs of abuse at screening

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 55 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Colcrys® (colchicine USP) 0.6 mg intact tablet<br>One Colcrys® (colchicine USP) 0.6 mg intact tablet taken by mouth | Drug: colchicine 0.6 mg tablet<br>* One Colcrys® 0.6 mg intact tablet taken by mouth<br>* Other names: Colcrys®;|
| Experimental: Colcrys® 0.6 mg tab in apple juice<br>One Colcrys® 0.6 mg tablet crushed and dissolved in apple juice | Drug: colchicine 0.6 mg tablet<br>* One Colcrys® 0.6 mg tablet dissolved in apple juice<br>* Other names: Colcrys®;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Maximum Plasma Concentration (Cmax) | The maximum or peak concentration that Colcrys® reaches in the plasma | serial pharmacokinetic plasma concentrations were drawn prior to dose administration (0 hour) and at 0.25, 0.5, 1.0, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16, 18, 20, 24, 36, and 48 hours after drug 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 Colcrys® concentration (t), as calculated by the linear trapezoidal rule | serial pharmacokinetic plasma concentrations were drawn prior to dose administration (0 hour) and at 0.25, 0.5, 1.0, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16, 18, 20, 24, 36, and 48 hours after drug 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 Colcrys® plasma concentration to the elimination rate constant. | serial pharmacokinetic plasma concentrations were drawn prior to dose administration (0 hour) and at 0.25, 0.5, 1.0, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16, 18, 20, 24, 36, and 48 hours after drug administration | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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bioavailability