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Switching From Efavirenz/Atripla to Rilpivirine Among Patients With Neurocognitive or Neuropsychological Side Effects

A Pilot Randomized Controlled Trial of Switch to Tenofovir Disoproxil Fumarate/Emtricitabine/Rilpivirine (TDF/FTC/RPV) Versus Continue TDF/FTC/Efavirenz (EFV) Treatment Among Virologically Suppressed, HIV-1 Infected Subjects With Mild or Asymptomatic EFV-related Neurocognitive or Neuropsychological Side Effects

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02042001
Acronym
SWEAR
Enrollment
74
Registered
2014-01-22
Start date
2015-07-01
Completion date
2018-01-15
Last updated
2018-07-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Depression/Anxiety, HIV-1 Infection, Impaired Cognition, Poor Quality Sleep, Quality of Life

Brief summary

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.

Interventions

DRUGImmediate switch to TDF/FTC/RPV
DRUGSwitch to TDF/FTC/RPV after 24 weeks

Patients will continue current EFV-containing regimen up to week 24 and then will be switched to TDF/FTC/RPV

Sponsors

Gilead Sciences
CollaboratorINDUSTRY
Azienda Ospedaliera San Gerardo di Monza
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥18 years old and ability to sign informed consent * Continuative treatment with TDF/FTC/EFV for ≥180 days * HIV-1 RNA viral load \< 50 copies/mL in two consecutive determinations (including screening) * No history of treatment failure and/or evidence of any mutations associated with resistance to NRTI or NNRTI * No contraindication to treatment with study drugs * Any one of the following conditions: (i) Altered scores in depression, quality of sleep or anxiety tests (ii) Alteration in 1 or more domains as assessed by neuropsychological assessment

Exclusion criteria

* Ongoing treatment or predictable need of treatment with proton pump inhibitors * New AIDS defining condition diagnosed within the 21 days prior to screening * Previous diagnosis of AIDS dementia complex * Current alcohol or substance dependence * Major psychiatric disorders * Decompensated cirrhosis * Plasma creatinine \>1.2 mg/dl or estimated glomerular filtration rate \<60 ml/min (MDRD formula) * AST, ALT or plasma bilirubin \>3 times upper limit of normal * Any other clinical condition or prior therapy that would make the subject unsuitable for the study or unable to comply with the dosing/food requirements

Design outcomes

Primary

MeasureTime frameDescription
Composite neuropsychiatric/neurocognitive24 weeksProportion of patients with improvement in either one of the previous binary end-point (composite end-point)
Neurocognitive side effects24 weeks\- 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)
Neuropsychiatric side effects24 weeksProportion of patients with improvement in depression, anxiety or quality of sleep scores, evaluated either as a binary (Yes/No) or on a continuous scale

Secondary

MeasureTime frameDescription
Cognitive failure24 weeksProportion of patients with improvement in Cognitive Failure Questionnaire
Viral suppression12 weeksProportion of patients with HIV-RNA \<50 copies/ml after 12 weeks of treatment (ITT-M=F)
Virological efficacy24 weeksProportion of patients with HIV-RNA \<50 copies/ml after 24 weeks (ITT-M=F)
Safety & Tolerability24 weeksProportion of patients discontinuing treatment for intolerance to study drugs or due to side effects
Viral failure12 weeksProportion of patients with HIV-RNA \<400 copies/ml after 12 weeks (ITT-M=F)
Symptoms24 weeksProportion of patients with self-reported improvement in treatment-related symptoms
Quality of Life24 weeksProportion of patients with self-reported improvement in quality of life

Other

MeasureTime frameDescription
Resistance12 & 24 weeksNumber of patients with genotypic resistance at failure
Immunological response12 & 24 weeksChange From Baseline in CD4+ and CD8+ T-Lymphocyte Cell Counts at Weeks 12 and 24

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026