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

An Open Label, Randomized Study to Compare Antiretroviral Therapy (ART) Initiation When CD4 is Between 15% to 24% to ART Initiation When CD4 Falls Below 15% in Children With HIV Infection and Moderate Immune Suppression

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.

Study Overview

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.

Study Type

Interventional

Enrollment (Actual)

300

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Phnom Penh, Cambodia
        • National Pediatric Hosp., Cambodia CIPRA CRS
      • Phnom Penh, Cambodia
        • Social Health Clinic, Cambodia CIPRA CRS
      • Chantaburi, Thailand, 22000
        • Prapokklao Hosp. CIPRA CRS
      • Chiang Mai, Thailand, 50180
        • Nakornping Hosp. CIPRA CRS
      • Chonburi, Thailand, 20110
        • Queen Savang Vadhana Memorial Hosp. CIPRA CRS
      • Khon Kaen, Thailand, 40002
        • Srinagarind Hosp. CIPRA CRS
      • Nonthaburi, Thailand, 11000
        • Bamrasnaradura Institute CIPRA CRS
    • Bangkok
      • Pathumwan, Bangkok, Thailand, 10330
        • Hiv-Nat Cipra Crs
    • Chiang Rai
      • Muang, Chiang Rai, Thailand, 57000
        • Chiang Rai Regional Hosp. CIPRA CRS

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

1 year to 12 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

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 Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: 1
Immediate treatment; individuals receive HAART on Day 1 of the study
8 mg/kg (up to 300 mg/dose) take orally twice daily
200 to 600 mg taken orally once daily
4 mg/kg (up to 150 mg/dose) taken orally twice daily
230 mg/57.5 mg/m^2 body surface area taken orally twice daily with food
45-55 mg/kg taken orally twice daily with food
120 mg/m^2 once daily for first 14 days, tehn 200 mg/m^2 (up to 400 mg/day) twice daily
180-240 mg/m^2 every 12 hours (up to 300 mg/dose)
Active Comparator: 2
Delayed treatment; individuals receive HAART if their CD4 percentage falls below 15 percentage OR if they develop a CDC category C illness
8 mg/kg (up to 300 mg/dose) take orally twice daily
200 to 600 mg taken orally once daily
4 mg/kg (up to 150 mg/dose) taken orally twice daily
230 mg/57.5 mg/m^2 body surface area taken orally twice daily with food
45-55 mg/kg taken orally twice daily with food
120 mg/m^2 once daily for first 14 days, tehn 200 mg/m^2 (up to 400 mg/day) twice daily
180-240 mg/m^2 every 12 hours (up to 300 mg/dose)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
AIDS-free survival
Time Frame: Week 144
Week 144

Secondary Outcome Measures

Outcome Measure
Time Frame
Direct and indirect cost of treatment per patient
Time Frame: Week 144
Week 144
Number and duration of hospitalizations
Time Frame: throughout study
throughout study
Time to and number of Grades 3 or 4 HAART-related toxicity and intolerance
Time Frame: throughout study
throughout study
Number of HAART regimen changes
Time Frame: throughout study
throughout study
Number of Grades 1 or 2 infectious episodes
Time Frame: throughout study
throughout study
Number of courses of antibiotics used
Time Frame: throughout study
throughout study
Number of HIV-related clinical events
Time Frame: throughout study
throughout study
Virologic failure, defined as HIV viral load of 1000 copies/ml
Time Frame: Week 24 after HAART initiation
Week 24 after HAART initiation
Presence of a resistance mutation in participants with virologic failure
Time Frame: throughout study
throughout study
Change of growth in Z scores
Time Frame: study entry to Week 144
study entry to Week 144
Change in CD4% and time-weighted average change
Time Frame: study entry and Week 144
study entry and Week 144
CD4 less than 10%
Time Frame: Week 144
Week 144
Average scores of the child's quality of life over time
Time Frame: Week 144
Week 144
Percentage adherence to HAART over time by pill count/weighing liquid medication bottles, self report, and questionnaire
Time Frame: throughout study
throughout study
Presence of iron deficiency anemia
Time Frame: study entry and Weeks 24, 48, 72, 96, 120, and 144
study entry and Weeks 24, 48, 72, 96, 120, and 144
HIV viral sequence
Time Frame: study entry and treatment failure
study entry and treatment failure
HIV viral replication capacity
Time Frame: throughout study
throughout study
Cytotoxic T-cell (CTL) response
Time Frame: throughout study
throughout study
Percentage of different T-cell subsets
Time Frame: study entry and Weeks 48, 96, and 144
study entry and Weeks 48, 96, and 144

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Chair: Kiat Ruxrungtham, MD, MPH, Department of Medicine at Chulalongkorn University, Bangkok, Thailand
  • Study Chair: Saphonn Vonthanak, MD, PhD, National Center for HIV/AIDS Dermatology and STDs, Phnom Penh, Cambodia

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2006

Primary Completion (Actual)

September 1, 2011

Study Completion (Actual)

September 1, 2011

Study Registration Dates

First Submitted

October 4, 2005

First Submitted That Met QC Criteria

October 4, 2005

First Posted (Estimate)

October 6, 2005

Study Record Updates

Last Update Posted (Estimate)

December 4, 2013

Last Update Submitted That Met QC Criteria

December 2, 2013

Last Verified

December 1, 2013

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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