Safety and Efficacy of an Antibody to CCR5 in Individuals With HIV Who Are Not Currently on Antiretroviral Therapy

August 1, 2013 updated by: Human Genome Sciences Inc.

A Phase 1, Randomized, Placebo-Controlled, Single-Injection, Dose-Escalation Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Ccr5mab004 (Human Monoclonal Igg4 Antibody To Ccr5) in Hiv-1 Seropositive Individuals Who Are Not Receiving Concurrent Antiretroviral Therapy

This is a phase 1, randomized, placebo-controlled, dose-escalation study of CCR5mAb004 in HIV-1 seropositive individuals who are not receiving concurrent antiretroviral therapy. Subjects will be randomly assigned to receive a single intravenous (IV) infusion of one of four dose levels of CCR5mAb004 or matching placebo. A minimum of 10 subjects will be randomized to each cohort at a ratio of 4:1 (active:placebo). A minimum of 40 and maximum of 60 subjects will be enrolled. This study will be conducted at up to 10 sites in the United States.

Subjects in each cohort will be followed for 56 days after study agent administration. The safety, tolerability, and immunogenicity of CCR5mAb004 will be evaluated based on physical examination, adverse event (AE) reporting, and clinical laboratory tests. Blood will be collected at specified times for the determination of CCR5mAb004 serum concentrations, HIV-1 RNA levels, and CD4+ and CD8+ cell counts. If CD4+ cell counts are less than 200 during the study period, the subject should be offered standard-of-care per HIV treatment guidelines that may include the initiation of appropriate anti-retroviral therapy (AVR). CCR5mAb004 pharmacokinetic (PK) and pharmacodynamics (PD) will be measured over the 56-day study period. Anti-CCR5mAb004 antibody titers will be assessed prior to dosing on Day 0 and on Day 28 and Day 56.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment

40

Phase

  • Phase 1

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

  • United States
    • California
      • Los Angeles, California, United States
        • AIDS Research Alliance
      • San Francisco, California, United States
        • Quest Clinical Research
    • Florida
      • Ft. Lauderdale, Florida, United States
      • Orlando, Florida, United States
        • The Orlando Immunology Center
    • Maryland
      • Baltimore, Maryland, United States
        • Johns Hopkins Hospital
    • Ohio
      • Cleveland, Ohio, United States
        • University Hospitals of Cleveland
      • Columbus, Ohio, United States
        • OSU Medical Center

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

18 years to 64 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • HIV-1 infection confirmed by enzyme immunoassay (EIA) and Western blot.
  • Age 18 to 64 years.
  • HIV-1 RNA > 5000 copies/mL.
  • CD4+ T cell count > 250 cells/uL.
  • Treatment naïve, or off antiretroviral treatment for at least 30 days prior to screening and 60 days prior to Day 0
  • CCR5 tropism confirmed by R5 PhenoSense assays.

Exclusion Criteria:

  • CXCR4 tropic or dual tropic virus at screening.
  • Laboratory values of Grade 3 or greater according to the Modified Division of Microbiology and Infectious Diseases (DMID) Adult Toxicity Tables.
  • History of Category C AIDS-defining illness according to the 1993 Centers for Disease Control and Prevention (CDC) AIDS surveillance definition.
  • History of any medical disease or condition that makes the subject (in the opinion of the investigator) unsuitable for the study.
  • Malignancy within the past 5 years (except for basal carcinomas of the skin and in situ cancers of the cervix).
  • Females who are pregnant or breastfeeding, or who plan to become pregnant during the study.
  • Subjects whose dosage or number of prescription medications has changed within 30 days prior to screening
  • Positive for hepatitis B surface antigen (HBsAg) or antibody to hepatitis C virus (HCV).
  • Positive alcohol or drug screen

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: Single Group Assignment
  • Masking: Single

What is the study measuring?

Primary Outcome Measures

Outcome Measure
The major safety endpoints are AE rates and laboratory abnormalities through Day 56.

Secondary Outcome Measures

Outcome Measure
The efficacy endpoints include change from baseline HIV-1 RNA levels (including viral kinetics) through Day 56, and change from baseline CD4+ and CD8+ cell counts through Day 56.

Collaborators and Investigators

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

Sponsor

Human Genome Sciences Inc.

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, 2005

Study Completion (Actual)

April 1, 2006

Study Registration Dates

First Submitted

June 16, 2005

First Submitted That Met QC Criteria

June 16, 2005

First Posted (Estimate)

June 17, 2005

Study Record Updates

Last Update Posted (Estimate)

August 2, 2013

Last Update Submitted That Met QC Criteria

August 1, 2013

Last Verified

August 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CCR5-HV01

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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