Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

A Trial of Observed Long-acting, Anti-HIV Treatment With a Monoclonal CCR5 Antibody (PRO 140) as an Adjunct to a New, Optimized, Oral Antiretroviral Regimen in HIV-infected Injection Drug Users With Viral Rebound and Documented Poor Adherence

This study has been withdrawn prior to enrollment.
(Lack of enrollment)
Information provided by (Responsible Party):
CytoDyn, Inc. Identifier:
First received: January 5, 2011
Last updated: January 31, 2017
Last verified: January 2017
PRO 140 2102 is a phase 2b, national, multicenter, randomized, double-blind, placebo-controlled study in order to evaluate the safety and efficacy of PRO 140 (anti-CCR5 monoclonal antibody) administered subcutaneously as an adjunct to a new, optimized, oral antiretroviral regimen in HIV-infected injection drug users with viral rebound and documented poor adherence to the previous antiretroviral regimen.

Condition Intervention Phase
Drug: PRO 140
Drug: Placebo
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Participant, Care Provider, Investigator, Outcomes Assessor
Primary Purpose: Treatment
Official Title: A Phase 2b, Randomized, Double-Blind, Placebo-Controlled Clinical Trial of Observed Systemic, Long-Acting, Anti-HIV Treatment With a Monoclonal Anti CCR5 Antibody (PRO 140) as an Adjunct to a New, Optimized, Oral Antiretroviral Regimen in HIV-Infected Injection Drug Users With Viral Rebound and Documented Poor Adherence to the Previous Antiretroviral Regimen

Resource links provided by NLM:

Further study details as provided by CytoDyn, Inc.:

Primary Outcome Measures:
  • Specific measure that will be used to determine the effect of the interventions: Percentage of subjects without virologic failure at week 24. [ Time Frame: 24 Weeks ]
    Percentage of subjects without virologic failure at week 24.

Enrollment: 0
Study Start Date: December 2013
Estimated Study Completion Date: February 2017
Estimated Primary Completion Date: January 2017 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Arm 1
PRO 140
Drug: PRO 140
SC injection
Placebo Comparator: Arm 2
Drug: Placebo
SC injection


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Key Inclusion Criteria:

  1. Only R5 virus
  2. HIV-1 RNA > 1,000 copies/mL but < 100,000 copies/mL
  3. CD4+ lymphocyte counts > 100 cells/μL
  4. Non-prescription recreational drug use within the previous 6 months

Key Exclusion Criteria:

  1. Females who are pregnant (positive blood test), lactating, or breastfeeding, or who plan to become pregnant during the study
  2. Prior use of any CCR5 entry inhibitors
  3. History of any acquired immune deficiency syndrome (AIDS)-defining illness
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01272258

United States, Pennsylvania
Drexel University College of Medicine
Philadelphia, Pennsylvania, United States, 19102
Sponsors and Collaborators
CytoDyn, Inc.
  More Information

Responsible Party: CytoDyn, Inc. Identifier: NCT01272258     History of Changes
Other Study ID Numbers: PRO 140 2102
Study First Received: January 5, 2011
Last Updated: January 31, 2017

Additional relevant MeSH terms:
HIV Antibodies
PRO-140 monoclonal antibody
Immunologic Factors
Physiological Effects of Drugs
HIV Fusion Inhibitors
Viral Fusion Protein Inhibitors
Molecular Mechanisms of Pharmacological Action
Anti-HIV Agents
Anti-Retroviral Agents
Antiviral Agents
Anti-Infective Agents processed this record on May 25, 2017