Linezolid Dosing Strategies in Drug-Resistant TB

Status Recruiting

Clinical Trial Summary

The purpose of the study is to evaluate the efficacy (how well the medicines work) and tolerability (whether participants stop treatment because of side effects from a drug or treatment) of an anti-TB treatment regimen that compares two doses of linezolid (LZD), combined with bedaquiline (BDQ), delamanid (DLM), and clofazimine (CFZ). This study will also measure the level of these medicines in the participants' blood.

Clinical Trial Description

There is currently no "standard of care" or single standardized treatment regimen recommended for everyone with drug resistant-tuberculosis (DR- TB). Current DR-TB treatments may not be well tolerated and can often have side effects. There is a need to identify drugs with enough anti-TB activity (treatment against TB) and good safety profiles that can improve outcomes in the treatment of DR-TB. The main purpose of this study is to evaluate the efficacy and tolerability of a new shorter course anti-TB treatment regimen that compares two dosing strategies of linezolid (LZD), combined with bedaquiline (BDQ), delamanid (DLM), and clofazimine (CFZ). As a secondary aim, the study will also assess the safety (the level and type of side effects from a drug or treatment) of the combination of these drugs. Everyone in the study will take these drugs once a day for the entire treatment period: BDQ, DLM, and CFZ. The difference between the two treatment groups in the study is in how participants will take the fourth drug: LZD. Participants in group A will take one dose of LZD once a day for the entire treatment period. Participants in group B will take a higher dose of LZD once a day for 4 weeks and then continue taking that higher dose of LZD just three times a week for the rest of the treatment period. ;

Study Design

Related Conditions & MeSH terms

Tuberculosis
Tuberculosis, Multidrug-Resistant
Tuberculosis, Pulmonary

Clinical Trial Details

NCT number	NCT05007821
Study type	Interventional
Source	National Institute of Allergy and Infectious Diseases (NIAID)
Contact	Constance A. Benson, MD
Phone	619-543-8080
Email	cbenson@ucsd.edu
Status	Recruiting
Phase	Phase 2
Start date	August 11, 2022
Completion date	November 14, 2025

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.