Isoniazid Dosage Prediction Model Development

NCT ID: NCT02747654

Last Updated: 2016-04-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-06-30

Brief Summary

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Isoniazid (INH) is an essential component of first-line anti-tuberculosis (TB) treatment. However, treatment with INH is complicated by polymorphisms in the expression of the enzyme system primarily responsible for its elimination, N-acetyltransferase 2 (NAT2), and its associated hepatotoxicity. The objective of this study was to develop an individualized INH dosing regimen using a pharmacogenetic-driven model and to apply this regimen in a pilot study.

Detailed Description

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Conditions

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NAT2 Genotype

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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standard dosing

a standard treatment group; INH dose of 300 mg or 200 mg based on the body weight

Group Type NO_INTERVENTION

No interventions assigned to this group

Genotype-guided dosing

INH dose determined based on developed model

Group Type EXPERIMENTAL

genotype

Intervention Type GENETIC

Patients were randomly assigned to a standard treatment group; INH dose of 300 mg or 200 mg based on the body weight) or model-based treatment group; INH dose determined based on developed model,

Interventions

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genotype

Patients were randomly assigned to a standard treatment group; INH dose of 300 mg or 200 mg based on the body weight) or model-based treatment group; INH dose determined based on developed model,

Intervention Type GENETIC

Eligibility Criteria

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Inclusion Criteria

* Who underwent standard four drug treatment for 6months: isoniazid (5 mg/kg, usually 300 mg), rifampin (450 mg for \<50 kg or 600 mg for 50 kg body weight), ethambutol(15mg/kg), and pyrazinamide (20 - 30 mg/kg)
* Given daily for two months and followed by isoniazid and rifampin with or without ethambutol for four months.
* Those patients with abnormal hepatic function on laboratory testing (increased serum aspartate aminotransferase, alanine aminotransferase, or total bilirubin) before anti-TB treatment, underlying liver disease or systemic illness such as congestive heart failure, acute life-threatening disease, or alcoholism, or disease that was resistant to INH at the start of treatment were excluded.
Minimum Eligible Age

17 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Samsung Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Soo-Youn Lee, MD

Role: PRINCIPAL_INVESTIGATOR

SMC

Locations

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Samsung Medical Center

Seoul, Seoul, South Korea

Site Status RECRUITING

Countries

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South Korea

Central Contacts

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Soo-Youn . Lee, MD

Role: CONTACT

82-2-3410-1834

Facility Contacts

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Soo-Youn Lee

Role: primary

Other Identifiers

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SMC-2013-07-155-002

Identifier Type: -

Identifier Source: org_study_id

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