Despite long-term use in clinical practice, chronic treatment with efavirenz (EFV) has been associated with persistent central nervous system symptoms or mild or even asymptomatic neurocognitive impairment. Whether switching to rilpivirine (RPV) containing regimen is beneficial among patients who experience mild or asymptomatic neurocognitive/neuropsychiatric adverse events during EFV has not been explored yet. The proposed pilot study will examine whether switching from single tablet regimen TDF/FTC/EFV to single tablet regimen TDF/FTC/RPV is associated with neurocognitive/neuropsychiatric improvement among HIV-infected patients with mild/asymptomatic neurocognitive impairment or neuropsychiatric symptoms during EFV-containing antiretroviral treatment. Patients under stable treatment with TDF/FTC/EFV, confirmed HIV-1 RNA viral load \< 50 copies/mL and altered scores in depression, quality of sleep or anxiety tests and/or alteration in 1 or more domains as assessed by neuropsychological assessment, will be randomized to immediate or deferred (24 weeks) switch to TDF/FTC/RPV. Neurocognitive and neuropsychiatric tests will be repeated after 12, 24 and 48 weeks of follow-up and variations will be compared between groups.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
74
Patients will continue current EFV-containing regimen up to week 24 and then will be switched to TDF/FTC/RPV
Clinic of Infectious Diseases, AO San Gerardo
Monza, MB, Italy
Spedali Civili - University of Brescia
Brescia, Italy
Clinica di Malattie Infettive, Ospedale San Martino
Genova, Italy
AO San Paolo - University of Milan
Milan, Italy
Ospedale Amedeo di Savoia - University of Turin
Torino, Italy
Neuropsychiatric side effects
Proportion of patients with improvement in depression, anxiety or quality of sleep scores, evaluated either as a binary (Yes/No) or on a continuous scale
Time frame: 24 weeks
Neurocognitive side effects
\- Proportion of patients with improvement in neurocognitive performances in either one of the 7 domains investigated, evaluated either as a binary (Abnormal/Normal) or on a continuous scale (deficit score)
Time frame: 24 weeks
Composite neuropsychiatric/neurocognitive
Proportion of patients with improvement in either one of the previous binary end-point (composite end-point)
Time frame: 24 weeks
Symptoms
Proportion of patients with self-reported improvement in treatment-related symptoms
Time frame: 24 weeks
Quality of Life
Proportion of patients with self-reported improvement in quality of life
Time frame: 24 weeks
Cognitive failure
Proportion of patients with improvement in Cognitive Failure Questionnaire
Time frame: 24 weeks
Viral suppression
Proportion of patients with HIV-RNA \<50 copies/ml after 12 weeks of treatment (ITT-M=F)
Time frame: 12 weeks
Viral failure
Proportion of patients with HIV-RNA \<400 copies/ml after 12 weeks (ITT-M=F)
Time frame: 12 weeks
Virological efficacy
Proportion of patients with HIV-RNA \<50 copies/ml after 24 weeks (ITT-M=F)
Time frame: 24 weeks
Safety & Tolerability
Proportion of patients discontinuing treatment for intolerance to study drugs or due to side effects
Time frame: 24 weeks
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