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NCT Number: NCT00966160

CD4 Cell Recovery in HIV-1 Patients Comparing 2 Treatment Regimes

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.

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Key information

Conditions

Acquired Immunodeficiency Syndrome Blood-Borne Infections Communicable Diseases Genital Diseases HIV Infections Immune System Diseases Immunologic Deficiency Syndromes Infections Lentivirus Infections RNA Virus Infections Retroviridae Infections Sexually Transmitted Diseases Sexually Transmitted Diseases, Viral Slow Virus Diseases Urogenital Diseases Virus Diseases

Age range

20 year–60 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Medical Clinic I and Department of Pharmacology, University of Cologne

Cologne, Germany

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 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

Exclusion criteria

  • 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

Treatment and study plan

Lopinavir/Ritonavir plus Lamivudine/Zidovudine

Drug

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 476 weeks

Efavirenz plus Lamivudine/Zidovudine

Drug

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 476 weeks

Primary outcomes

  1. Difference in changes of CD4 cell count between PI and NNRTI groups

    Time frame: 420 weeks

Secondary outcomes

  1. Evolution of CD4 cell counts

    Time frame: 420 weeks

  2. Molecular, biochemical and functional markers of CD4 cell apoptosis

    Time frame: 420 weeks

Sponsors and collaborators

Lead sponsor

University of Cologne

Other

Registry information

Official study title

Phase 3, Single Center, Controlled, Investigator-blinded, Randomized Matched Pair Design Study of CD4 Cell Recovery in HIV-1 Patients With Sustained Virologic Response Comparing Protease Inhibitor and Non-nucleoside Reverse Transcriptase Inhibitor Based Treatment Regimes

Important dates

Study start
1999
Primary completion
2008
Study completion
2008
First posted
Aug 26, 2009
Registry last updated
Sep 29, 2009

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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