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When to Start Anti-HIV Drugs in Children Infected With HIV (The PREDICT Study)

Registration Number
NCT00234091
Lead Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Brief Summary

The purpose of this study is to determine when HIV infected children should begin taking anti-HIV medications in order to improve both patient quality of life and survival.

Detailed Description

The use of highly active antiretroviral therapy (HAART) has resulted in a significant reduction in AIDS-related deaths and complications among adults and adolescents. However, the medical management of HIV infected children remains challenging. Access to HIV treatment is limited and early treatment initiation can cause serious complications. Since there is currently no cure for HIV, a balance between treating the disease and maintaining quality of life must be weighed carefully. An evaluation to determine the appropriate time to initiate HAART is necessary to improve both quality of life and survival for HIV infected children.

This study will last 144 weeks. All participants will have a CD4 percentage (CD4%) between 15% and 24% and will be randomly assigned to either receive immediate or delayed HAART. The HAART regimen will consist of two nucleoside reverse transcriptase inhibitors, zidovudine and lamivudine. In addition, participants will also receive either one non-nucleoside reverse transcriptase inhibitor, nevirapine or efavirenz, or one protease inhibitor, ritonavir-boosted lopinavir or nelfinavir. Abacavir will replace zidovudine or lamivudine if participants experience toxicity to the regimen. Participants in the immediate treatment arm will receive HAART on Day 1 of the study regardless of their CD4%. Participants in the delayed treatment arm will receive HAART if their CD4% falls below 15 or if they develop a CDC Category C illness.

Study visits will occur every 4 weeks for the first 12 weeks and then every 12 weeks until the end of the study. Blood collection, physical exams, and medical and medication history reviews will occur at all visits. Adherence, quality of life, and lipodystrophy assessments will occur every 12 weeks for participants on HAART. Participants will be encouraged to enroll in a related substudy to examine the neurodevelopment of HIV infected children.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
300
Inclusion Criteria
  • HIV-1 infected
  • Antiretroviral naive, defined as never receiving anti-HIV medications, receiving them for less than 7 days, or only receiving them to prevent mother-to-child transmission (MTCT)
  • CD4% between 15 and 24 within 30 days prior to study entry
  • CDC pediatric clinical classification A or B
  • Parent or guardian willing to provide informed consent and willing to follow all study procedures and requirements
Exclusion Criteria
  • Use of systemic chemotherapy, immunomodulators, HIV vaccines, immune globulin, interleukins, or interferons within 30 days prior to study entry
  • Active AIDS-defining illnesses (CDC Category C) within 30 days prior to study entry
  • Certain abnormal laboratory values
  • Known kidney disease
  • Known allergy or sensitivity to study drugs
  • Require certain medications
  • Pregnancy

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
1ZidovudineImmediate treatment; individuals receive HAART on Day 1 of the study
2AbacavirDelayed treatment; individuals receive HAART if their CD4 percentage falls below 15 percentage OR if they develop a CDC category C illness
1AbacavirImmediate treatment; individuals receive HAART on Day 1 of the study
1EfavirenzImmediate treatment; individuals receive HAART on Day 1 of the study
1LamivudineImmediate treatment; individuals receive HAART on Day 1 of the study
1Lopinavir/RitonavirImmediate treatment; individuals receive HAART on Day 1 of the study
2LamivudineDelayed treatment; individuals receive HAART if their CD4 percentage falls below 15 percentage OR if they develop a CDC category C illness
2Lopinavir/RitonavirDelayed treatment; individuals receive HAART if their CD4 percentage falls below 15 percentage OR if they develop a CDC category C illness
2NelfinavirDelayed treatment; individuals receive HAART if their CD4 percentage falls below 15 percentage OR if they develop a CDC category C illness
2NevirapineDelayed treatment; individuals receive HAART if their CD4 percentage falls below 15 percentage OR if they develop a CDC category C illness
2ZidovudineDelayed treatment; individuals receive HAART if their CD4 percentage falls below 15 percentage OR if they develop a CDC category C illness
1NelfinavirImmediate treatment; individuals receive HAART on Day 1 of the study
1NevirapineImmediate treatment; individuals receive HAART on Day 1 of the study
2EfavirenzDelayed treatment; individuals receive HAART if their CD4 percentage falls below 15 percentage OR if they develop a CDC category C illness
Primary Outcome Measures
NameTimeMethod
AIDS-free survivalWeek 144
Secondary Outcome Measures
NameTimeMethod
Direct and indirect cost of treatment per patientWeek 144
Number and duration of hospitalizationsthroughout study
Time to and number of Grades 3 or 4 HAART-related toxicity and intolerancethroughout study
Number of HAART regimen changesthroughout study
Number of Grades 1 or 2 infectious episodesthroughout study
Number of courses of antibiotics usedthroughout study
Number of HIV-related clinical eventsthroughout study
Virologic failure, defined as HIV viral load of 1000 copies/mlWeek 24 after HAART initiation
Presence of a resistance mutation in participants with virologic failurethroughout study
Change of growth in Z scoresstudy entry to Week 144
Change in CD4% and time-weighted average changestudy entry and Week 144
CD4 less than 10%Week 144
Average scores of the child's quality of life over timeWeek 144
Percentage adherence to HAART over time by pill count/weighing liquid medication bottles, self report, and questionnairethroughout study
Presence of iron deficiency anemiastudy entry and Weeks 24, 48, 72, 96, 120, and 144
HIV viral sequencestudy entry and treatment failure
HIV viral replication capacitythroughout study
Cytotoxic T-cell (CTL) responsethroughout study
Percentage of different T-cell subsetsstudy entry and Weeks 48, 96, and 144

Trial Locations

Locations (9)

National Pediatric Hosp., Cambodia CIPRA CRS

🇰🇭

Phnom Penh, Cambodia

Social Health Clinic, Cambodia CIPRA CRS

🇰🇭

Phnom Penh, Cambodia

Prapokklao Hosp. CIPRA CRS

🇹🇭

Chantaburi, Thailand

Nakornping Hosp. CIPRA CRS

🇹🇭

Chiang Mai, Thailand

Queen Savang Vadhana Memorial Hosp. CIPRA CRS

🇹🇭

Chonburi, Thailand

Srinagarind Hosp. CIPRA CRS

🇹🇭

Khon Kaen, Thailand

Bamrasnaradura Institute CIPRA CRS

🇹🇭

Nonthaburi, Thailand

Chiang Rai Regional Hosp. CIPRA CRS

🇹🇭

Muang, Chiang Rai, Thailand

Hiv-Nat Cipra Crs

🇹🇭

Pathumwan, Bangkok, Thailand

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