IVIVR Assessing PK Parameters Used to Establish Bioequivalence

December 31, 2015 updated by: Ardea Biosciences, Inc.

In Vitro-In Vivo Relationship Study to Assess the Impact of the In Vitro Dissolution Profile on the Pharmacokinetic Parameters Used to Establish Bioequivalence

The purpose of this study is to determine whether defined and limited changes in in vitro dissolution impact the in vivo pharmacokinetics (PK) and relative bioavailability of allopurinol and the active metabolite oxypurinol.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

In this study, a single oral dose of Zyloprim® (300 mg tablet) and 3 separate single oral doses of 300 mg allopurinol test formulations (Regimens B, C and D) will be administered sequentially to each subject on separate occasions. Following the administration of Regimens B and C, there will be a period of interim analysis during which the PK data will be reviewed to determine the formulation within the process design space that provides the desired in vitro dissolution variant for dosing in the subsequent study period.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
20

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years to 61 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Body mass index of 18.0 to 35.0 kg/m2 inclusive, or if outside the range, considered not clinically significant by the Investigator. Must not exceed 40.0 kg/m2.
  • Must agree to use an adequate method of contraception

Exclusion Criteria:

  • Subjects who test positive for the HLA-B*5801 allele.
  • Subjects who have received the last dose of an IMP (or treatment with a medical device) within the previous 3 months prior to Day 1 or is currently participating in another study of an IMP (or medical device).
  • History of any drug or alcohol abuse in the past 2 years.
  • Regular alcohol consumption in males >21 units per week (1 unit = ½ pint beer, 25 mL of 40% spirit or a 125 mL glass of wine).
  • Current smokers and those who have smoked within the last 12 months prior to Screening. A breath carbon monoxide reading of greater than 10 ppm at Screening.
  • Subjects who do not have suitable veins for multiple venepunctures/cannulation as assessed by the Investigator at Screening.
  • Clinically significant screening laboratory parameters (biochemistry [AST or ALT > 1.5 × ULN], hematology or urinalysis) as judged by the Investigator (laboratory parameters are listed in Appendix 1).
  • Positive drugs of abuse test result during Screening or at Admission (drugs of abuse tests are listed in Appendix 1).
  • Positive hepatitis B surface antigen (HBsAg), hepatitis C virus antibody (HCV Ab) or human immunodeficiency virus (HIV) results.
  • Subjects with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption.
  • History of cardiovascular, renal, hepatic, chronic respiratory or gastrointestinal disease as judged by the Investigator.
  • Evidence of renal impairment at Screening, as indicated by an estimated creatinine clearance of <90 mL/min using the Cockcroft-Gault equation.
  • Serious adverse reaction or serious hypersensitivity to any drug or the formulation excipients.
  • Presence or history of clinically significant allergy requiring treatment, as judged by the Investigator. Hayfever is allowed unless it is active.
  • Donation or loss of greater than 400 mL of blood within the previous 3 months prior to Screening.
  • Subjects who are taking, or have taken, any prescribed or over-the-counter drug (other than up to 4 g per day paracetamol) or herbal remedies in the 14 days before IMP administration (See Section 11.4).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

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

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Zyloprim® 300 mg and three dissolution test formulations
Regimen A: Zyloprim® 300 mg; Regimen B: Allopurinol 300 mg; undergranulated, high hardness condition; Regimen C: Allopurinol 300 mg; alternative condition 2; Regimen D: Allopurinol 300 mg; alternative condition 3
Drug: Zyloprim® 300 mg
Drug: Allopurinol 300 mg; undergranulated, high hardness condition
There will be a period for interim analysis after administration of Regimen B to determine the formulation within the process design space that provides the desired in vitro dissolution variant for dosing in the subsequent study period
Drug: Allopurinol 300 mg; alternative condition 2
There will be a period for interim analysis after administration of Regimen C to determine the formulation within the process design space that provides the desired in vitro dissolution variant for dosing in the subsequent study period
Drug: Allopurinol 300 mg; alternative condition 3

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
PK profile of Zyloprim® and three dissolution test formulations of allopurinol from plasma
Time Frame: Predose (within 30 minutes before dosing), 15, 30, and 45 minutes postdose, and 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, and 96 hours postdose.
PK endpoints in terms of maximum observed concentration (Cmax), time of occurrence of maximum observed concentration (Tmax), area under the concentration-time curve (AUClast), area under the concentration-time curve (AUC∞) and apparent terminal half-life (t1/2)
Predose (within 30 minutes before dosing), 15, 30, and 45 minutes postdose, and 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, and 96 hours postdose.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Incidence of Adverse Events
Time Frame: 11 weeks
Changes in Laboratory, Electrocardiogram and Vital Signs Parameters
11 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Ardea Biosciences, Inc.

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Quotient Clinical

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Chris Storgard, Ardea Biosciences, Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 1, 2015

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2015

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2015

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 20, 2015

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 20, 2015

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 25, 2015

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 1, 2016

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 31, 2015

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2015

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ALLO-101(QCL116986)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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