The Effects of BCRP Q141K on Allopurinol Pharmacokinetics and Dynamics

NCT ID: NCT02956278

Last Updated: 2020-06-23

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

27 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-11-30

Study Completion Date

2018-03-31

Brief Summary

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Subjects will undergo a placebo and allopurinol phase to better understand the effects of the reduced function BCRP Q141K variant on allopurinol pharmacokinetics and pharmacodynamics.

Detailed Description

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Conditions

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Chronic Gout Hyperuricemia

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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BCRP Q141K CC

Participants that are homozygous reference for BCRP Q141K receive at least one 300 mg dose of allopurinol followed by blood/urine collection for up to 72 hours post-dose.

Group Type PLACEBO_COMPARATOR

Allopurinol

Intervention Type DRUG

Placebo

Intervention Type OTHER

lactose placebo pill

BCRP Q141K CA

Participants that are heterozygous for the BCRP Q141K allele receive at least one 300 mg dose of allopurinol, with blood/urine collections up to 72 hours post-dose.

Group Type EXPERIMENTAL

Allopurinol

Intervention Type DRUG

Placebo

Intervention Type OTHER

lactose placebo pill

BCRP Q141K AA

Participants homozygous for the BCRP Q141K allele receive at least one 300 mg dose of allopurinol with blood/urine collection for up to 72 hours post-dose.

Group Type EXPERIMENTAL

Allopurinol

Intervention Type DRUG

Placebo

Intervention Type OTHER

lactose placebo pill

Interventions

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Allopurinol

Intervention Type DRUG

Placebo

lactose placebo pill

Intervention Type OTHER

Other Intervention Names

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Zyloprim Aloprim

Eligibility Criteria

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Inclusion Criteria

* self-identified as Asian/European ancestry
* generally healthy with approved lab values for CBC,HFP,RFP, and uric acid
* Subjects with the ABCG2 genotype, homozygous, heterozygous or homozygous for the major allele of rs2231142 will be recruited

Exclusion Criteria

* vascular disease
* renal impairment
* medications/supplements that affect uric acid levels
* pregnant or lactating women
* prior history of allergic reaction to allopurinol or testing positive for HLA-B\*5801 allele
* risk of urinary or gastric retention or narrow-angle glaucoma
* impaired hepatic function
* evidence of anemia
* evidence or diagnosis of congestive heart failure
* smokers
* subjects with a mutation other than rs2231142 in the ABCG2 genotype
* subjects taking hormonal contraceptives or other hormonal medications
* evidence of recreational drug use as determined by questionnaire
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

NIH

Sponsor Role collaborator

Open Medicine Institute

UNKNOWN

Sponsor Role collaborator

University of California, San Francisco

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Kathleen Giacomini, PhD

Role: PRINCIPAL_INVESTIGATOR

University of California, San Francisco

Locations

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Open Medicine Institute

Mountain View, California, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan: Single Dose Protocol

View Document

Document Type: Study Protocol and Statistical Analysis Plan: Multiple Dose Protocol

View Document

Other Identifiers

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R01DK103729

Identifier Type: NIH

Identifier Source: secondary_id

View Link

14-14550

Identifier Type: -

Identifier Source: org_study_id

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