Elvucitabine/Efavirenz/Tenofovir Versus Lamivudine/Efavirenz/Tenofovir in Human Immunodeficiency Virus (HIV)-1 Infected, Treatment-naive Participants

Completed · Phase 2

Conditions studied: HIV Infections

In brief

Elvucitabine, a novel nucleoside analog, is being studied as a treatment for participants with human immunodeficiency virus (HIV)-1. This Phase 2 study will enroll 60 HIV-1-naive participants to assess the efficacy and safety of elvucitabine compared to lamivudine in combination with tenofovir and efavirenz as measured by changes in the participant's HIV-ribonucleic acid (RNA) level and CD4 cell count. The study treatment will be 12 weeks of blinded study medication followed by an additional 84 weeks of open-label treatment if the participant's response to treatment meets certain endpoints. The pharmacokinetics of elvucitabine will also be assessed during the study.

Key facts

Study ID: NCT00350272
Run by: Alexion Pharmaceuticals, Inc.
People needed: 76
Starts: 2006-05-01
Expected to finish: 2009-04-01
Last updated by the study team: 2023-08-30

Who can join

Age: 18 and older, up to 60. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

A participant must meet the following criteria at Screening to be enrolled in this study:
Are male or female. Sexually active men with partners of childbearing potential must agree to use an acceptable form of contraception as determined by the investigator (for example, oral contraceptives, double-barrier methods, hormonal injectable or implanted contraceptives, tubal ligation, or vasectomy) during participation in the study. Female participants cannot be pregnant or lactating/breast-feeding and must be surgically sterile, postmenopausal as defined later, or practicing an effective method of birth control as determined by the investigator (for example oral contraceptives, double-barrier methods, hormonal injectable or implanted contraceptives, tubal ligation, or partner with vasectomy). A woman may be considered postmenopausal if she is at least 50 years or older, has a history of no menses for at least 12 months, and has a follicle-stimulating hormone (FSH) level over the upper limit of normal for reproductive aged women.
Are 18 through 65 years old
Have documented HIV-1 infection by written prior history and clinically stable with no AIDS-defining events in the 3 months prior to Screening
Have plasma HIV-1 RNA levels greater than or equal to 5000 copies/mL at Screening
Are HIV-1 strain sensitive to elvucitabine, lamivudine, or emtricitabine as demonstrated by the absence of the M184V, M184I, and D237E mutations by TRUGENE HIV-1 Genotyping Kit
Are HIV-1 strain genotypically sensitive to efavirenz (negative for K103 and Y188L mutations) and tenofovir (negative for K65R mutation) by TRUGENE HIV-1 Genotyping Kit
Have a CD4 count greater than or equal to 200 cells/mL and less than 500 cells/mL
Have acceptable hematologic and chemistry parameters, including the following:
Hemoglobin (Hgb) greater than or equal to 11 grams (g)/deciliter (dL)
Absolute neutrophil count greater than or equal to 2000 cells/mm\^3
Platelets greater than or equal to 125 000/mm\^3
Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) less than or equal to 1.5 times the upper limit of normal
Total bilirubin less than or equal to 1.5 times the upper limit of normal
Creatinine within normal range
Are capable of understanding and has signed the informed consent document
Are able and willing to comply with protocol requirements

You may not qualify if…

Participants meeting any of the following criteria at Screening will be excluded from the study:
Are hepatitis B surface antigen positive, and/or hepatitis B virus (HBV) deoxyribonucleic acid (DNA) positive
Have previous therapy with agents with significant systemic myelosuppressive or cytotoxic potential within the 3 months prior to Screening or the expected need for such therapy during the study
Have previous use or need for bone marrow colony-stimulating factors such as Epogen, Procrit, or Neupogen
Have had previous antiretroviral therapy
Have evidence or history of cirrhosis
Have recent (within 3 months of Screening) history of alcohol abuse, physical dependence to any opioid, cocaine, lysergic acid diethylamide (LSD) or amphetamines, or history of drug addiction within the last 12 months
Have inability to tolerate oral medication
Are pregnant or breast-feeding if female
Have any clinical condition or prior therapy that, in the investigator's opinion, would make the participant unsuitable for the study or unable to comply with the dosing requirements
Have received treatment with any other investigational drug within 30 days prior to Screening
Have current active mental illness or a history of significant mental illness (for example, severe depression, schizophrenia, history of suicidal ideations, or suicide attempts)

Where it is running

Clinical Trial Site — Little Rock, Arkansas, United States
Clinical Trial Site — Long Beach, California, United States
Clinical Trial Site — Los Angeles, California, United States
Clinical Trial Site — Washington D.C., District of Columbia, United States
Clinical Trial Site — Clearwater, Florida, United States
Clinical Trial Site — Fort Myers, Florida, United States
Clinical Trial Site — Miami, Florida, United States
Clinical Trial Site — Miami, Florida, United States
Clinical Trial Site — Orlando, Florida, United States
Clinical Trial Site — Tampa, Florida, United States
Clinical Trial Site — Tampa, Florida, United States
Clinical Trial Site — West Palm Beach, Florida, United States
Clinical Trial Site — Chicago, Illinois, United States
Clinical Trial Site — Wichita, Kansas, United States
Clinical Trial Site — Washington D.C, Maryland, United States
Clinical Trial Site — Boston, Massachusetts, United States
Clinical Trial Site — Newark, New Jersey, United States
Clinical Trial Site — New York, New York, United States
Clinical Trial Site — Austin, Texas, United States
Clinical Trial Site — Dallas, Texas, United States
Clinical Trial Site — Houston, Texas, United States
Clinical Trial Site — Houston, Texas, United States
Clinical Trial Site — Houston, Texas, United States
Clinical Trial Site — Houston, Texas, United States
Clinical Trial Site — Hampton, Virginia, United States

Full record on ClinicalTrials.gov

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