CD4 Cell Recovery in HIV-1 Patients Comparing 2 Treatment Regimes
- Conditions
- Acquired Immunodeficiency SyndromeHIV Infections
- Interventions
- Drug: Lopinavir/Ritonavir plus Lamivudine/Zidovudine
- Registration Number
- NCT00966160
- Lead Sponsor
- University of Cologne
- Brief Summary
Therapy guidelines recommend the use of either the non-nucleoside reverse transcriptase inhibitor (NNRTI) efavirenz or a ritonavir-boostered protease inhibitor (PI) plus 2 nucleoside reverse transcriptase inhibitors (NRTI) as first-line treatment regimes of HIV-1 infection. Recent clinical studies suggest potential advantages of NNRTI- over PI-based regimes in therapy initiation due to lower rates of virologic failure and less metabolic side-effects. In contrast, PI regimes were claimed to cause greater increases in CD4 cell count than NNRTI regimes, which has been attributed to intrinsic antiapoptotic effects of the PI. However, it is still unclear whether the immunological response to a PI-containing regime is greater than to an NNRTI-containing regime, whether there is a difference in the extent of reduction of apoptosis between PI and NNRTI regimes and whether a difference in apoptosis is associated with a difference in CD4 cell recovery.
We conducted a controlled, long-term, random matched pair design study in HIV-1 infected individuals under sustained virologic suppression to evaluate in head-to-head comparison the clinical effects of a constant PI-based or NNRTI-based regime on CD4 cell recovery and the underlying molecular, biochemical and functional mechanisms.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 215
- Recent, non-acute HIV-1 infection
- Caucasians
- BMI between 17.5 and 30 kg/m2
- CD4 count <200 cells/µl
- Plasma viral load >100,000 HIV-1 RNA copies/ml
- Actual or previous antiretroviral therapy
- Acute illness
- Coinfection with HBV or HCV
- Opportunistic infection (Pneumocystis jiroveci pneumonia, Toxoplasma gondii encephalitis, Mycobacterium ssp. infection, syphilis, cryptosporidiosis, cryptococcosis, aspergillosis, cytomegalovirus infection or progressive multifocal leukoencephalopathy)
- Hepatic or renal disorder
- Severe cardiovascular disease
- Hematologic disorder
- Autoimmune disorder
- Diabetes mellitus or other severe endocrine disorder
- Malignancy
- Neurocognitive disorder
- Psychiatric disorder
- Drug or alcohol addiction
- Chronic drug use (except of blood pressure-lowering or lipid-lowering drugs or proton-pump inhibitors)
- Any acute medication within 7 days or vaccination within 30 days prior to entry
- Pregnancy or lactation
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description NNRTI Efavirenz plus Lamivudine/Zidovudine 600 mg efavirenz (Sustiva tablets, Bristol-Myers Squibb) once daily plus 150 mg lamivudine (Epivir tablets, GlaxoSmithKline) and 300 mg zidovudine (Retrovir tablets, GlaxoSmithKline) twice daily over a 56-week run-in and a 420-week follow-up PI Lopinavir/Ritonavir plus Lamivudine/Zidovudine 400 mg lopinavir and 100 mg ritonavir (Kaletra capsules, Abbott Laboratories) twice daily plus 150 mg lamivudine (Epivir tablets, GlaxoSmithKline) and 300 mg zidovudine (Retrovir tablets, GlaxoSmithKline) twice daily over a 56-week run-in and a 420-week follow-up
- Primary Outcome Measures
Name Time Method Difference in changes of CD4 cell count between PI and NNRTI groups 420 weeks
- Secondary Outcome Measures
Name Time Method Evolution of CD4 cell counts 420 weeks Molecular, biochemical and functional markers of CD4 cell apoptosis 420 weeks
Trial Locations
- Locations (1)
Medical Clinic I and Department of Pharmacology, University of Cologne
🇩🇪Cologne, Germany