Clinical Trials


Early Intensification of Antiretroviral Therapy Including Enfuvirtide in HIV-1-Related Progressive Multifocal Leucoencephalopathy (ANRS125)

This study has been completed
French National Agency for Research on AIDS and Viral Hepatitis

Hoffmann-La Roche
Gilead Sciences

Information provided by (Responsible Party)
French National Agency for Research on AIDS and Viral Hepatitis Identifier

First received: July 11, 2005
Last updated: December 21, 2011
Last Verified: December 2011
History of Changes


Progressive multifocal leucoencephalopathy (PML) is a rare infectious disease of the brain, provoked by the JC virus. It usually occurs in subjects with impaired immune system as during HIV infection. To date, there is no specific antiviral treatment susceptible to cure PML. But it was shown in the setting of HIV-related PML, that combination antiretroviral therapy allows a restoration of the immune system and then might stop the progression of PML.

The objective of this study is to appreciate the supplementary efficiency brought by an association of more powerful antiretroviral molecules including enfuvirtide on the evolution of PML. This research program will involve 30 patients in several centres in France. All the patients who will participate will receive enfuvirtide during 6 months in association with a combination of two or more potent antiretroviral drugs. The total duration of follow-up for a patient will be of 1 year.

Condition Intervention Phase
Leukoencephalopathy, Progressive Multifocal
HIV Infections

Drug : Enfuvirtide
Drug : Tenofovir-Emtricitabine
Phase 2

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Early Intensification of Combination Antiretroviral Therapy Including FUZEON® in the Treatment of Progressive Multifocal Leucoencephalopathy During HIV-1 Infection ANRS 125 Trial

Further study details as provided by French National Agency for Research on AIDS and Viral Hepatitis:

Primary Outcome Measures

  • Estimation by the method of Kaplan-Meier of the rate of survival at M12
Secondary Outcome Measures:
  • Rate of survival and functional score (Modified Rankin Outcome Scale) at M12
  • Evolution of the JC viral load in the CSF and percentage of patients with JC virus clearance of the CSF to M3 and M6
  • Evolution of the CD4 and CD8 T cells sub-populations and of the antivirus JC specific T cell responses at M12
  • Dosage of the concentration of enfuvirtide in the CSF

Enrollment: 30
Study Start Date: April 2005
Study Completion Date: December 2007
Primary Completion Date: December 2007 (Final data collection date for primary outcome measure)

Detailed Description:

The aim of this open-label multicentre study is to estimate the effect of an early therapy intensification based on potent antiretroviral combination including enfuvirtide(FUZEON®) on survival in patients with HIV-1-related progressive multifocal leucoencephalopathy (PML).
To demonstrate that the observed rate is significantly superior to 45%, the inclusion of 24 patients is necessary. At last, 30 patients will be recruited towards the risk estimated at 25% of invalid inclusion.
Patients will be included on the following criteria : HIV-1 documented by Western Blot, clinical and radiological (MRI) evidence of active LEMP with clinical evolution (or deterioration) for less than 90 days, documentation of PML diagnosis for less than 30 days at the inclusion, informed consent (patient or confidence surrogate if decision making incapacity). Exclusion criteria will be the following: age less than 18-year-old ; concomitant opportunistic infection of the central nervous system; pregnancy - feeding; co-infection by the HIV2; history of immunotherapy (interleukin 2, alpha-interferon) or of treatment by FUZEON®; history of treatment by cidofovir; contra-indication to receive FUZEON ®.
An independent committee will meet regularly to estimate the validity of PML diagnosis in included patients.
The duration of the treatment by FUZEON® is 6 months in association with a combination of two or more antiretroviral molecules which will be pursued during the next 6 months. These molecules will be chosen according to the past treatment of the patients. A combination including efavirenz, lopinavir/ritonavir, and tenofovir/emtricitabine (under the shape of TRUVADA®) will be proposed to the naïve patients. For the pretreated patient(approximately a quarter of the inclusions), antiretroviral therapy will be chosen in every case on the basis of the therapeutic history and of the viral genotypes of resistance. Such association will contain at least two antiretroviral molecules, issued from two different families among the three following ones (nucleoside inhibitors of the reverse transcriptase, non-nucleoside inhibitors of the reverse transcriptase, protease inhibitors).
The projected duration of the period of inclusion will be 18 months. A total duration of 2.5 years is projected.
Evaluation criteria of the ANRS 125 trial are the following. Clinical: rate of survival and functional score (Modified Rankin Outcome Scale) to M12. Virological: evolution of the JC viral load in the CSF ; and percentage of patients with JC virus clearance of the CSF to M3 and M6. Immunological: evolution of T CD4 and T CD8 subpopulations. Evolution of the anti-JC virus specific T cell (CD4 and CD8) responses. Pharmacological: dosage of the concentration of enfuvirtide in the CSF compared with the plasma.



Ages Eligible for Study: 18 Years and older  
Sexes Eligible for Study: All  
Accepts Healthy Volunteers: No  


Inclusion Criteria:

  • 18 years of age and older
  • Have confirmed laboratory diagnosis of HIV infection
  • Presenting with a clinical history of active PML evolving (or continuing to deteriorate) for less than 90 days
  • Diagnosis of PML documented for less than 30 days at the inclusion by cerebral imaging (MRI) AND the absence of another demonstrated etiology AND the detection of JCV DNA in the CSF by qualitative PCR.
  • Signed written inform consent

Exclusion Criteria:
  • Concomitant opportunistic infection of the central nervous system
  • Pregnancy, breast-feeding
  • Co-infection by the HIV2
  • History of immunotherapy including interleukin-2 and alpha-interferon
  • History of treatment by FUZEON® or by cidofovir
  • Contra-indication to receive FUZEON

contacts and locations

Contacts and Locations

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Please refer to this study by its identifier: NCT00120367


Service de Medecine interne et Maladies Infectieuses, Hopital Bicetre
Le Kremlin Bicetre, France, 94270

Sponsors and Collaborators

French National Agency for Research on AIDS and Viral Hepatitis
Hoffmann-La Roche
Gilead Sciences


Principal Investigator: Jacques Gasnault, MD Hopital Bicetre Kremlin Bicetre France
Study Chair: Dominique Costagliola Inserm U720
More Information

More Information

Responsible Party: French National Agency for Research on AIDS and Viral Hepatitis Identifier: NCT00120367   History of Changes  
Other Study ID Numbers: 2005-000424-16  
  ANRS 125  
Study First Received: July 11, 2005  
Last Updated: December 21, 2011  

Keywords provided by French National Agency for Research on AIDS and Viral Hepatitis:

Leukoencephalopathy, Progressive Multifocal
HIV infections
HIV Fusion Inhibitors

Additional relevant MeSH terms:
HIV Infections
Leukoencephalopathy, Progressive Multifocal
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