The Efficacy of Silymarin on the Prevention of Hepatotoxicity From Antituberculosis Drugs

December 23, 2013 updated by: Abhasnee Sobhonslidsuk, Ramathibodi Hospital

Hepatitis is one of the most common adverse effect from anti-tuberculosis. Silymarin showed its efficacy to decreased serum alanine transaminase enzyme in animal models from recent study. No confirmed this efficacy was performed in human.

A prospective, double-blind, placebo-controlled trial was carried out according to Good Clinical Practice Guideline. This study is to define the efficacy of silymarin to prevent hepatotoxicity from anti-tuberculosis drugs. Informed consent is obtained prior to the study. New patients diagnosed with tuberculosis are enrolled. Patients with liver diseases, current alcohol drinking more than 20 g/day, regular use of herbal or other potential hepatotoxic drugs are excluded. Patients are treated with a standard regimen of four anti-tuberculosis therapy. They will randomize to receive either placebo or silymarin (140 mg) thrice daily. Liver function test (LFT) and clinical changes are assessed at 2- and 4-week after initiation of the treatment. DILI from anti-tuberculosis drugs ('atb-DILI') is defined as: i) a rise of alanine aminotransferase (ALT) to 2 times above normal upper limit, or ii) an elevation of total bilirubin more than 2 mg/dl with or without ALT elevation. The study endpoints are the level of ALT by week 4 and the number of patients who developed atb-DILI.

Statistical analysis is used to compare the differences in ALT and number of atb-DILI

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

- Prevention of antituberculosis-related drug induced liver injury with silymarin is investigated.

Study Type

Interventional

Enrollment (Anticipated)

80

Phase

  • Not Applicable

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

      • Bangkok, Thailand, 10400
        • Gastroenterology and Hepatology, Ramathibodi hospital

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

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • tuberculosis cases
  • treated with isoniazid, rifampicin, ethambutol and pyrazinamide

Exclusion Criteria:

  • no known liver disease (HBV, HCV), and HIV infection
  • normal ALT level before enrollment
  • refuse to participate

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: PREVENTION
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: QUADRUPLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: silymarin
Silymarin 140 mg three times a day for 4 weeks
140 mg three times a day for 4 weeks
PLACEBO_COMPARATOR: placebo

Placeo

1 tab three times a day for 4 weeks

Placebo (silymarin) 1 tab three times a day for 4 weeks

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The number of patients who develop drug-induced liver injury (DILI) at 4 weeks
Time Frame: 4 weeks
DILI from anti-tuberculosis drugs ('atb-DILI') is defined as: i) a rise of alanine aminotransferase (ALT) to 2 times above normal upper limit, or ii) an elevation of total bilirubin more than 2 mg/dl with or without ALT elevation.
4 weeks

Collaborators and Investigators

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

Investigators

  • Study Director: Abhasnee Sobhonslidsuk, MD, Ramathibodi Hospital
  • Principal Investigator: Chote Luangchosiri, MD, Ramathibodi

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

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

January 1, 2012

Primary Completion (ACTUAL)

June 1, 2013

Study Completion (ACTUAL)

July 1, 2013

Study Registration Dates

First Submitted

February 21, 2013

First Submitted That Met QC Criteria

February 26, 2013

First Posted (ESTIMATE)

February 27, 2013

Study Record Updates

Last Update Posted (ESTIMATE)

December 24, 2013

Last Update Submitted That Met QC Criteria

December 23, 2013

Last Verified

December 1, 2013

More Information

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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