Pharmacokinetics and Pharmacodynamics of High Versus Standard Dose Rifampicin in Patients With Pulmonary Tuberculosis

NCT ID: NCT00760149

Last Updated: 2013-09-09

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

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-07-31

Study Completion Date

2013-09-30

Brief Summary

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In this phase II clinical trial, the pharmacokinetics, safety and (short-term) efficacy of higher than standard doses rifampicin will be studied during the intensive phase of tuberculosis (TB) treatment. Patients enrolled in this study will either get the standard TB regimen (including 600 mg rifampicin; first study arm), or 900 mg rifampicin plus isoniazid, ethambutol and pyrazinamide in standard dosages (second study arm), or 1200 mg rifampicin plus the other drugs in standard dosages (third study arm). All patients will get the standard TB regimen during the continuation phase of treatment.

Detailed Description

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Conditions

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Tuberculosis

Keywords

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tuberculosis rifampicin pharmacokinetics pharmacodynamics

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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1

50 patients, treated with the standard anti-TB regimen, including rifampicin (600 mg), isoniazid (300 mg), pyrazinamide (30 mg/kg), ethambutol (15 mg/kg), administered daily, orally, during the intensive phase of TB treatment. In addition they will receive 2 placebo tablets resembling rifampicin 300 mg.

Group Type PLACEBO_COMPARATOR

Rifampicin in higher doses

Intervention Type DRUG

Rifampicin 900 mg (study arm 2), and rifampicin 1200 mg (study arm 3)

2

50 patients, treated with rifampicin (900 mg), and the other drugs in standard dosages (isoniazid (300 mg), pyrazinamide (30 mg/kg), ethambutol (15 mg/kg)), administered daily, orally, during the intensive phase of TB treatment. In addition they will receive 1 placebo tablet resembling rifampicin 300 mg.

Group Type ACTIVE_COMPARATOR

Rifampicin in higher doses

Intervention Type DRUG

Rifampicin 900 mg (study arm 2), and rifampicin 1200 mg (study arm 3)

3

50 patients, treated with rifampicin (1200 mg), and the other drugs in standard dosages (isoniazid (300 mg), pyrazinamide (30 mg/kg), ethambutol (15 mg/kg)), administered daily, orally, during the intensive phase of TB treatment.

Group Type ACTIVE_COMPARATOR

Rifampicin in higher doses

Intervention Type DRUG

Rifampicin 900 mg (study arm 2), and rifampicin 1200 mg (study arm 3)

Interventions

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Rifampicin in higher doses

Rifampicin 900 mg (study arm 2), and rifampicin 1200 mg (study arm 3)

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Participant has a newly diagnosed pulmonary tuberculosis, confirmed by a positive smear of at least two sputum specimens with ZN staining.
* Participant is willing to be tested for HIV.
* Participant is at least 18, but not more than 65 years of age at the day of the first dosing of study medication.
* Participant is admitted to KNTH or KCMC during the intensive phase of TB treatment.
* Participant is able and willing to attend to KNTH or KCMC regularly during the continuation phase of TB treatment.
* Participant is able to understand and willing to sign the Informed Consent Form prior to screening evaluations.
* Female participants should understand that it is important not to get pregnant during the study. They should agree on taking measures to prevent them from getting pregnant during the study. They should agree on taking measures to prevent them from getting pregnant, such as using a contraceptive device or barrier method.

Exclusion Criteria

* Participant has been treated with anti-tuberculosis drugs during the past three years.
* Participant's body weight is less than 50 kg.
* Participant has abnormal liver function test or serum creatinine (defined as levels higher than the upper limit of normal).
* Participant has a relevant medical history or current condition that might interfere with drug absorption, distribution, metabolism or excretion (i.e. chronic gastro-intestinal disease, Diabetes Mellitus, renal or hepatic disease, use of concomitant drugs that interfere with the pharmacokinetics of anti-TB drugs).
* Participant is on anti-retroviral treatment at inclusion.
* Participant has a CD4 count less than 350 cells/mm3.
* Participant has a Karnofsky score of less than 40.
* Participant is pregnant or breastfeeding.
* Participant has a Multi Drug Resistant (MDR)-TB for which another than the standard treatment regimen is needed.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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European and Developing Countries Clinical Trials Partnership (EDCTP)

OTHER_GOV

Sponsor Role collaborator

Sanofi

INDUSTRY

Sponsor Role collaborator

Kilimanjaro Christian Medical Centre, Tanzania

OTHER

Sponsor Role collaborator

Kibong'oto National Tuberculosis Hospital, Sanya Juu, Tanzania

UNKNOWN

Sponsor Role collaborator

University Centre for Chronic Diseases Dekkerswald, Groesbeek, The Netherlands

UNKNOWN

Sponsor Role collaborator

National Institute for Public Health and the Environment (RIVM)

OTHER_GOV

Sponsor Role collaborator

Radboud University Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Radboud University Nijmegen Medical Centre, the Netherlands

Principal Investigators

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Rob Aarnoutse, Pharm-D, PhD

Role: PRINCIPAL_INVESTIGATOR

Radboud University Medical Center

Gibson Kibiki, MD, MMed, PhD

Role: PRINCIPAL_INVESTIGATOR

Kilimanjaro Christian Medical Centre,Moshi,Tanzania

Martin Boeree, MD PhD

Role: PRINCIPAL_INVESTIGATOR

Radboud University Nijmegen Medical Center/UCCZ Dekkerswald

Locations

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Kibong'oto National Tuberculosis Hospital

Sanya Juu, Kilimanjaro, Tanzania

Site Status

Countries

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Tanzania

References

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Other Identifiers

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PACTR2009060001493909

Identifier Type: REGISTRY

Identifier Source: secondary_id

APRIORI 4.1

Identifier Type: -

Identifier Source: org_study_id