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Treatment of HIV-infected patients involves combining drugs from different classes of anti-HIV drugs. One preferred regimen for adults is 2 nucleoside reverse transcriptase inhibitors (NRTIs) and 1 protease inhibitor (PI). For children, this regimen may be too complicated or the drugs may be too difficult to take by mouth. The purpose of this study is to determine the long-term safety and effectiveness of daily didanosine (ddI), efavirenz (EFV), and emtricitabine (FTC) in pediatric patients who have taken few or no anti-HIV drugs.
Anti-HIV treatment options are limited for pediatric patients because combination therapies recommended for adults may not be appropriate for children or adolescents. Few PIs are available in formulations appropriate for pediatric patients, and complex dosing schedules and food requirements may be detrimental to treatment adherence. A once-daily regimen of the NRTIs ddI and FTC and the nonnucleoside reverse transcriptase inhibitor (NNRTI) EFV has been shown safe and well tolerated in adults. This study will evaluate the long-term safety and efficacy of a ddI, FTC, and EFV regimen in pediatric patients.
Patients will be followed for a maximum of 192 weeks; all patients will receive ddI, EFV, and FTC together once daily. Study visits will occur at study entry, Weeks 2 and 4, and every 4 weeks thereafter. Blood collection, medical history assessment, and a physical exam will occur at all visits; urine collection will occur at selected visits. Intensive pharmacokinetic (PK) studies will be done at Weeks 2 and 12 to determine if dose adjustments are required for any of the drugs. If virologic failure is determined, PK studies will be repeated 4 weeks after adjustments in therapy. Parents or guardians will be asked to complete treatment adherence questionnaires at some visits. Some patients may also be asked to participate in an additional PK study after Week 16 or week 96.
Allocation: Non-Randomized, Control: Active Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Didanosine, Efavirenz, Emtricitabine
Univ of Alabama at Birmingham - Pediatric
National Institute of Allergy and Infectious Diseases (NIAID)
Published on BioPortfolio: 2014-08-27T03:56:54-0400
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A dideoxynucleoside compound in which the 3'-hydroxy group on the sugar moiety has been replaced by a hydrogen. This modification prevents the formation of phosphodiester linkages which are needed for the completion of nucleic acid chains. Didanosine is a potent inhibitor of HIV replication, acting as a chain-terminator of viral DNA by binding to reverse transcriptase; ddI is then metabolized to dideoxyadenosine triphosphate, its putative active metabolite.
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