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ESP Study: A Study to Assess the Effect of Adding Fuzeon (Enfuvirtide) to an Antiretroviral Regimen in Fuzeon-Naive Patients With Sustained HIV Viral Suppression.

This study has been withdrawn prior to enrollment.
(Slow recruitment)
ClinicalTrials.gov Identifier:
First Posted: April 17, 2007
Last Update Posted: August 24, 2016
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Hoffmann-La Roche
This 2 arm study will assess the immunological benefits of adding Fuzeon to an antiretroviral regimen in HIV-infected, Fuzeon-naive patients with a CD4 cell count <250 cells/mm3 and an HIV RNA viral load <400 copies/mL. Eligible patients will be randomized to receive Fuzeon 90mg bid sc in addition to their current antiretroviral therapy, or to continue their current antiretroviral therapy alone. The anticipated time on study treatment is 3-12 months, and the target sample size is <100 individuals.

Condition Intervention Phase
HIV Infections Drug: enfuvirtide [Fuzeon] Drug: Antiretroviral therapy Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Randomized, Open Label Study to Determine the Immunological Benefits of Adding Fuzeon to an Antiretroviral Regimen in HIV-infected Fuzeon-naïve Patients With Sustained HIV Viral Suppression

Resource links provided by NLM:

Further study details as provided by Hoffmann-La Roche:

Primary Outcome Measures:
  • Mean change in CD4 cell count from baseline [ Time Frame: Week 24 ]

Secondary Outcome Measures:
  • Change in HIV RNA from baseline [ Time Frame: Week 24 ]
  • Change in HIV RNA and CD4 cell count [ Time Frame: Weeks 24-48 ]
  • Correlation between CD4 count and HIV RNA; OIs; QoL; ADEs; SAEs. [ Time Frame: Throughout study ]

Enrollment: 0
Study Start Date: April 2007
Study Completion Date: January 2008
Primary Completion Date: January 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1 Drug: enfuvirtide [Fuzeon]
90mg sc bid
Drug: Antiretroviral therapy
As prescribed
Active Comparator: 2 Drug: Antiretroviral therapy
As prescribed


Information from the National Library of Medicine

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, Learn About Clinical Studies.

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

Inclusion Criteria:

  • adult patients, >=18 years of age;
  • documented chronic HIV infection;
  • currently receiving a stable antiretroviral regimen;
  • CD4 cell count <250 cells/mm3;
  • HIV RNA viral load <400 copies/mL for >12 months.

Exclusion Criteria:

  • prior exposure to Fuzeon;
  • prior non-adherence to antiretroviral treatment regimens;
  • active opportunistic infection;
  • currently taking, or anticipated to take during the study, any immunomodulator.
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00461266

Carlton, Australia
Darlinghurst, Australia
Melbourne, Australia
Miami, Australia
Perth, Australia
South Yarra, Australia
Sydney, Australia
Sponsors and Collaborators
Hoffmann-La Roche
Study Director: Clinical Trials Hoffmann-La Roche
  More Information

Responsible Party: Hoffmann-La Roche
ClinicalTrials.gov Identifier: NCT00461266     History of Changes
Other Study ID Numbers: ML19355
First Submitted: April 16, 2007
First Posted: April 17, 2007
Last Update Posted: August 24, 2016
Last Verified: August 2016

Keywords provided by Hoffmann-La Roche:
Treatment Experienced

Additional relevant MeSH terms:
HIV Infections
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases
HIV Fusion Inhibitors
Viral Fusion Protein Inhibitors
Molecular Mechanisms of Pharmacological Action
Anti-HIV Agents
Anti-Retroviral Agents
Antiviral Agents
Anti-Infective Agents