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Safety, Tolerability, and Effect of TMC207 and Efavirenz in Healthy Volunteers

2014-08-27 03:18:47 | BioPortfolio

Summary

Common treatments for tuberculosis (TB) can interfere with certain antiretroviral (ARV) medications used to treat HIV. People whose immune systems are weakened by HIV infection are susceptible to TB, so it is important to find treatments for both that can be given in combination. This study will test the safety of combining a new medication for TB with an already approved HIV medication in healthy adults.

Description

Tuberculosis (TB) is the second most deadly infectious disease after HIV. Multidrug-resistant TB (MDR-TB) has emerged as a worldwide epidemic, limiting treatment options. HIV infected people with suppressed immune systems are particularly susceptible to TB, and TB is the leading cause of death among people with HIV. Treating people infected with both HIV and TB is particularly problematic because rifamycins, the drug class usually used to treat TB, lower the effectiveness of certain anti-HIV medications. Studies of pharmacokinetics (PK), the interactions between drugs and body, are needed to determine which anti-TB and anti-HIV medications can be safely and effectively combined. This study will examine TMC207, a new anti-TB medication with the potential to shorten TB treatment time, combined with efavirenz (EFV), an antiretroviral (ARV) medication used in many first-line treatment regimens for HIV. The study will test PK and safety of this combination in healthy volunteers.

Participation in this study will last 49 days. At entry, participants will complete basic assessments, including taking a medical history and completing a physical exam, an eye exam, an electrocardiogram (ECG) to measure heartbeat, a pregnancy test, and a blood test. Certain behaviors and substances will be prohibited during the study, including consuming grapefruit, alcohol, or caffeine (on PK visit days); taking nutritional supplements, over-the-counter herbal medicines, and certain medicines and drugs from other studies; and excessive smoking. Participants will also be asked to keep a medication diary to record all medications they take during the study.

All participants will receive study medications on the same schedule: a single dose of TMC207 on Days 1 and 29, and daily dosing of EFV on Days 15 to 43.

Participants will complete two PK visits, one from Days 1 to 3, and one from Days 28 to 31. During PK visits, participants will have their vital signs checked and undergo an ECG, and they may also complete a limited physical exam, give a medication history, and report on symptoms. They will have multiple blood samples taken via a catheter left in place for the 3-day visit. Blood samples will be taken before receiving TMC207; 1, 2, 3, 4, 5, 6, 8, and 12 hours after receiving TMC207; and again on the mornings of Days 2 and 3.

Participants will complete six outpatient visits over the 11 days following each PK visit and one outpatient visit on Day 21, between PK visits. At outpatient visits participants will complete a blood draw and may complete a limited physical exam and medical history, record symptoms, and review their medication diaries.

On Day 49 participants will complete their last study visit, repeating many of the assessments from baseline testing. In the case of side effects or abnormal blood tests, participants may be monitored longer for safety reasons.

Study Design

Endpoint Classification: Safety Study, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Tuberculosis

Intervention

Efavirenz (EFV), TMC207

Location

Johns Hopkins Adult AIDS CRS
Baltimore
Maryland
United States
21287

Status

Recruiting

Source

National Institute of Allergy and Infectious Diseases (NIAID)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:18:47-0400

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