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Antiretroviral Therapy for Advanced HIV Disease in South Africa

Randomized, Open-Label 2x2 Factorial Study to Compare the Safety and Efficacy of Different Combination Antiretroviral Therapy Regimens in Treatment Naive Patients With Advanced HIV Disease and/or CD4+ Cell Counts Less Than 200 Cells/MicroL

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00342355
Enrollment
1771
Registered
2006-06-21
Start date
2004-01-31
Completion date
2008-08-31
Last updated
2013-05-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV

Keywords

Protease Inhibitors, Reverse Transcriptase Inhibitors, AIDS, Opportunistic Infections, Resource-Poor

Brief summary

This study will determine how well four different antiretroviral drug therapies work in patients with advanced HIV disease. The trial is part of the South Africa-U.S. Project Phidisa Programme - a collaboration between the South African Military Health Service (SAMHS) of the South African National Defense Force (SANDF), the U.S. Department of Defense, and the U.S. National Institutes of Health - to help prevent HIV transmission among South African military and civilian employees and their families. Members of the SANDF with HIV infection may be eligible for this study. HIV-infected family members who are 14 years of age and older may also participate. All participants must have a CD4 count of less than 200 or an AIDS-defining illness. Participants are randomly assigned to one of the following four antiretroviral drug regimens, which require taking 5 pills or more every day: * AZT (zidovudine) + ddl (didanosine) + EFV (efavirenz) * AZT (zidovudine) + ddl (didanosine) + r/LPV (lopinavir/ritonavir) * D4T (stavudine) + 3TC (lamivudine) + EFV (efavirenz) * D4T (stavudine) + 3TC (lamivudine) + r/LPV (lopinavir/ritonavir) Patients are followed for up to 6 years. Clinic visits are scheduled once a month for the first 3 months and then once every 3 months for the next five years. Patients undergo a medical history, physical examination, and blood tests at each visit, and complete questionnaires of behavior, quality of life, and force readiness every year.

Detailed description

This is a randomized, open label 2x2 factorial study of four regimens of initial therapy. I. AZT + ddl + EFV II. AZT + ddl + r/LPV III. D4T + 3TC + EFV IV. D4T + 3TC + r/LPV Eligible patients will commence their randomly allocated study drugs as soon as possible after randomization. Episodes of treatment limiting toxicity will be managed in keeping with protocol specified guidelines. Patients who experience treatment failures (as specified in the protocol) will be managed by changing their regimen to that corresponding to one of the other treatment groups.

Interventions

DRUGZidovudine

600 mg once daily

DRUGStavudine

40 mg once daily

DRUGDidanosine

\<60 kg/125 mg twice daily or \>60kg/200 mg twice daily

DRUGLamivudine

300 mg once daily

DRUGEfavirenz

600 mg once daily

DRUGLopinavir/Ritonavir

r/LPV 400mg/100mg twice daily

Sponsors

National Institutes of Health Clinical Center (CC)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
14 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* INCLUSION CRITERIA: Uniformed SANDF personnel or family members of SANDF personnel who are registered as eligible for health services from the SAMHS. HIV positive as diagnosed and/or confirmed in PHIDISA I OR documented HIV infection from an accredited source. CD4+ cell count less than 200 cells/microL (or less than or equal to 14% for patients post-splenectomy) AND/OR any AIDS defining illness currently or historically. Patients with pulmonary tuberculosis must have a CD4+ cell count less than 200 cells/microL. Patients with KS must have a CD4+ cell count less than 200 cells/microL unless their sarcoma is progressive and/or requires chemotherapy. Antiretroviral treatment naive (less than 7 days cumulative exposure to any antiretroviral drug) or treated for post-exposure prophylaxis without becoming HIV infected at that time. Laboratory variables as follows: 1. Haemoglobin greater than or equal to 9.0g/dL for men and greater than or equal to 8.0g/dL for women. 2. Absolute neutrophil count greater than or equal to 500 cells/microL. 3. Platelet count greater than or equal to 25,000/mm(3). 4. Serum transaminase (ALT or AST) less than or equal to 5 times upper limit of normal (ULN). 14 years or older. Likely to be compliant with study procedures and clinical visits in the opinion of the clinical investigator (guidance is provided in the protocol to assist clinicians in making this decision). Have completed the PHIDISA treatment adherence counseling session. Provision of written informed consent.

Exclusion criteria

Any history of pancreatitis or serious pathology indicative of increased risk for pancreatitis. Current requirement for use of a medication that is contra-indicated with the PHIDISA II study drugs. Where possible, alternate therapies should be selected in order to facilitate randomization. Patients entering the study with tuberculosis should defer screening and randomization until successful completion of an induction course of anti-mycobacterium therapy including rifampicin. As appropriate this patient could recommence screening when starting the maintenance regimen of anti-tubercular drugs excluding rifampicin. Pregnancy (following delivery, such women may be enrolled).

Design outcomes

Primary

MeasureTime frameDescription
Progression to AIDS or Death in tx naïve Pts With Adv HIV dx in the Four Randomly Assigned Regimens.January 2004 until March 31 2008Progression of disease, AIDS, or death in treatment naive patients with advanced HIV diagnosis will be evaluated in the four randomly assigned regimens.

Secondary

MeasureTime frameDescription
Serious Adverse EventsJanuary 2004 until March 31, 2008Safety outcomes in four different randomly assigned regimens

Countries

South Africa

Participant flow

Participants by arm

ArmCount
AZT+ddI+EFV
Zidovudine + Didanosine+Efavirenz
444
AZT + ddI + r/LPV
Zidovudine + Didanosine + Lopinavir \[LPV\] co-formulated with ritonavir \[RTV\]
440
d4T + 3TC + EFV
Stavudine + Lamivudine + efavirenz
444
d4T + 3TC + r/LPV
Stavudine + Lamivudine + lopinavir/ritonavir
443
Total1,771

Baseline characteristics

CharacteristicAZT+ddI+EFVAZT + ddI + r/LPVd4T + 3TC + EFVd4T + 3TC + r/LPVTotal
Age Continuous35.3 years
STANDARD_DEVIATION 5.4
35.3 years
STANDARD_DEVIATION 5.4
35.5 years
STANDARD_DEVIATION 5.5
35.6 years
STANDARD_DEVIATION 5.5
35.4 years
STANDARD_DEVIATION 5.4
Region of Enrollment
South Africa
444 participants440 participants444 participants443 participants1771.0 participants
Sex: Female, Male
Female
146 Participants135 Participants144 Participants142 Participants567.0 Participants
Sex: Female, Male
Male
298 Participants305 Participants300 Participants301 Participants1204.0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
0 / 4440 / 4400 / 4440 / 443
serious
Total, serious adverse events
96 / 44485 / 44072 / 44471 / 443

Outcome results

Primary

Progression to AIDS or Death in tx naïve Pts With Adv HIV dx in the Four Randomly Assigned Regimens.

Progression of disease, AIDS, or death in treatment naive patients with advanced HIV diagnosis will be evaluated in the four randomly assigned regimens.

Time frame: January 2004 until March 31 2008

ArmMeasureValue (NUMBER)
AZT+ddI+EFVProgression to AIDS or Death in tx naïve Pts With Adv HIV dx in the Four Randomly Assigned Regimens.93 participants
AZT + ddI + r/LPVProgression to AIDS or Death in tx naïve Pts With Adv HIV dx in the Four Randomly Assigned Regimens.77 participants
d4T + 3TC + EFVProgression to AIDS or Death in tx naïve Pts With Adv HIV dx in the Four Randomly Assigned Regimens.70 participants
d4T + 3TC + r/LPVProgression to AIDS or Death in tx naïve Pts With Adv HIV dx in the Four Randomly Assigned Regimens.80 participants
Secondary

Serious Adverse Events

Safety outcomes in four different randomly assigned regimens

Time frame: January 2004 until March 31, 2008

ArmMeasureValue (NUMBER)
AZT+ddI+EFVSerious Adverse Events73 participant
AZT + ddI + r/LPVSerious Adverse Events69 participant
d4T + 3TC + EFVSerious Adverse Events64 participant
d4T + 3TC + r/LPVSerious Adverse Events60 participant

Source: ClinicalTrials.gov · Data processed: Mar 30, 2026