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Determining the Effects of Observed and Self-Administered Drug Regimens in HIV Infected Adults

Registration Number
NCT00608569
Lead Sponsor
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
Brief Summary

Highly active antiretroviral therapy (HAART) has led to better health and survival rates among people with HIV/AIDS. The purpose of this study was to measure the effect of trained partner supervision when taking medication versus self-administered therapy in HIV infected participants. These participants have had their first virologic failure on a non-nucleoside reverse transcriptase inhibitor (NNRTI)-based HAART regimen and were starting a protease inhibitor (PI)-based HAART regimen at study entry.

Detailed Description

Poor adherence to HAART is usually associated with resistant virus. Poor adherence to HAART can have serious consequences, including limited treatment options for HIV infected individuals if they become infected with resistant HIV. The purpose of this study was to examine the effectiveness of modified directly observed therapy (mDOT) and compare it with the effectiveness of self-administered therapy (non-mDOT) in HIV infected individuals with first virologic failure on an NNRTI-based HAART regimen who were starting a PI-based HAART regimen at study entry.

mDOT was defined in this study as the daily observation of lopinavir/ritonavir (LPV/r) being taken on a regular basis. Observation consisted of an mDOT partner being present at the time the study participant took the observed dose. Half of the participants in this study were required to choose an mDOT partner to supervise adherence for the first 24 weeks of the study. Each mDOT partner completed the study-administered mDOT training program and was required to record all observed doses in an mDOT diary log. All participants and partners received health education through the study. Adherence was measured using Medication Event Monitoring System (MEMS) caps and self-report questionnaires.

This study lasted 52 weeks. Per protocol, participants were to be stratified according to their screening viral load and the proposed study treatment. The study treatment each participant received was based on their treatment history. At entry, participants were to start one of the two PI-based HAART regimens, either FTC/Tenofovir Disoproxil Fumarate (TDF) 200/300 mg once daily (QD) and Lopinavir/Ritonavir (LPV/RTV) 400/100 mg twice a day (BID) or TDF 300 mg QD and zidovudine (ZDV) 300 mg BID and LPV/RTV 400/100 mg BID. mDOT was used for the first 24 weeks of the study, followed by self-administration of study medications from week 25 to week 52. ZDV was not provided by the study. All enrolled participants except one who did not start study regimen initiated FTC/TDF and LPV/rtv after randomization. No participants started ZDV containing regimen on study. Thus, participants in this study were stratified by screening HIV-1 RNA only.

There were eight visits during the study. Medical and medication history, blood collection, and clinical assessment were required at all visits. A quality of life questionnaire and an adherence tools assessment were collected at most visits. For the mDOT arm, medication diary logs and mDOT partner monitoring were reviewed at most visits. An mDOT exit questionnaire and exit interview were required at the end of the study.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
529
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
mDOT armEmtricitabine/Tenofovir disoproxil fumarateOral FTC/TDF+LPV/rtv or TDF+ZDV+LPV/rtv for 52 weeks. Modified directly observed therapy (mDOT) for the first 24 weeks and self-administration for the remaining 28 weeks.
mDOT armTenofovir disoproxil fumarateOral FTC/TDF+LPV/rtv or TDF+ZDV+LPV/rtv for 52 weeks. Modified directly observed therapy (mDOT) for the first 24 weeks and self-administration for the remaining 28 weeks.
mDOT armZidovudineOral FTC/TDF+LPV/rtv or TDF+ZDV+LPV/rtv for 52 weeks. Modified directly observed therapy (mDOT) for the first 24 weeks and self-administration for the remaining 28 weeks.
mDOT armEmtricitabineOral FTC/TDF+LPV/rtv or TDF+ZDV+LPV/rtv for 52 weeks. Modified directly observed therapy (mDOT) for the first 24 weeks and self-administration for the remaining 28 weeks.
non-mDOT armLopinavir/ritonavirOral FTC/TDF+LPV/rtv or TDF+ZDV+LPV/rtv for 52 weeks. Self-administration of the study treatment (non-mDOT) for 52 weeks.
non-mDOT armEmtricitabine/Tenofovir disoproxil fumarateOral FTC/TDF+LPV/rtv or TDF+ZDV+LPV/rtv for 52 weeks. Self-administration of the study treatment (non-mDOT) for 52 weeks.
non-mDOT armZidovudineOral FTC/TDF+LPV/rtv or TDF+ZDV+LPV/rtv for 52 weeks. Self-administration of the study treatment (non-mDOT) for 52 weeks.
non-mDOT armEmtricitabineOral FTC/TDF+LPV/rtv or TDF+ZDV+LPV/rtv for 52 weeks. Self-administration of the study treatment (non-mDOT) for 52 weeks.
mDOT armLopinavir/ritonavirOral FTC/TDF+LPV/rtv or TDF+ZDV+LPV/rtv for 52 weeks. Modified directly observed therapy (mDOT) for the first 24 weeks and self-administration for the remaining 28 weeks.
non-mDOT armTenofovir disoproxil fumarateOral FTC/TDF+LPV/rtv or TDF+ZDV+LPV/rtv for 52 weeks. Self-administration of the study treatment (non-mDOT) for 52 weeks.
Primary Outcome Measures
NameTimeMethod
Confirmed Virologic Failure at or Prior to Week 48At or prior to Week 48

Confirmed virologic failure was defined as two successive HIV-1 RNA measurements at least 24 hours apart that were either:1) \<1 log10 copies/mL below the baseline level and \>400 copies/mL at the week 12 HIV-1 RNA evaluation (obtained at least 11 weeks after the date of the randomization) 2) \>400 copies/mL at or after the week 24 HIV-1 RNA evaluation (obtained at least 23 weeks after the date of randomization). 3) subjects who discontinued the study follow-up for any reason other than study completion, including death, and who did so ≤50 weeks after randomization was considered to be a virologic failure. Number of participants experiencing or not experiencing virologic failure at or prior to week 48 was reported.

Secondary Outcome Measures
NameTimeMethod
Confirmed Virologic Failure at or Prior to Week 24At or prior to Week 24

Confirmed virologic failure was defined as two successive HIV-1 RNA measurements at least 24 hours apart that were either:1) \<1 log10 copies/mL below the baseline level and \>400 copies/mL at the week 12 HIV-1 RNA evaluation (obtained at least 11 weeks after the date of the randomization) 2) \>400 copies/mL at or after the week 24 HIV-1 RNA evaluation (obtained at least 23 weeks after the date of randomization). 3) subjects who discontinued the study follow-up for any reason other than study completion, including death, and who did so ≤30 weeks after randomization was considered to be a virologic failure. Number of participants experiencing or not experiencing virologic failure at or prior to week 24 was reported.

CD4 Count at Follow-up VisitsAt Weeks 4, 12, 24, 36, and 48

CD4 cell count (median, inter-quartile range)

CD8 Count at Follow-up VisitsAt week 4, 12, 24, 36, and 48

CD8 cell count (median, inter-quartile range)

Time to First Grade 3 or 4 Lab Event52 weeks since randomization

5th and 10th percentiles in weeks from randomization to first grade 3 or 4 lab event

Time to First Grade 3 or 4 Sign or Symptom52 weeks since randomization

5th and 10th percentiles in weeks from randomization to first grade 3 or 4 sign or symptom

Time to First Grade 3 or 4 Lab or Sign/Symptom Event52 weeks since randomization

5th and 10th percentiles in weeks from randomization to first grade 3 or 4 lab or sign/ symptom event

Adherence to Second Line HAART RegimenAt weeks 4, 8, 12, 24, 36, 48 and 52

Number of participants with self-reported 100% adherence over the week prior to study visit

Trial Locations

Locations (9)

JCRC CRS

🇺🇬

Kampala, Uganda

Les Centres GHESKIO CRS

🇭🇹

Bicentenaire, Port-au-Prince, Haiti

Barranco CRS

🇵🇪

Lima, Peru

Gaborone Prevention/Treatment Trials CRS

🇧🇼

Gaborone, Botswana

Kalingalinga Clinic CRS

🇿🇲

Lusaka, Zambia

San Miguel CRS

🇵🇪

San Miguel, Lima, Peru

Instituto de Pesquisa Clinica Evandro Chagas (12101)

🇧🇷

Rio de Janeiro, Brazil

UZ-Parirenyatwa CRS

🇿🇼

Harare, Zimbabwe

Wits HIV CRS

🇿🇦

Johannesburg, Gauteng, South Africa

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