Relapse of neurosymptomatic cerebrospinal fluid HIV RNA escape

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OBJECTIVES: Our objectives were to investigate the characteristics of people living with HIV who presented with new or recurrent symptoms in the context of re-emergence of cerebrospinal fluid HIV RNA escape after antiretroviral therapy (ART) modification (termed relapse of CSF HIV RNA escape). METHODS: People living with HIV-1 with known CSF HIV RNA escape were identified, with clinical and laboratory data obtained from records in a tertiary centre. CSF HIV RNA escape was defined as quantifiable CSF HIV RNA in the presence of unquantifiable plasma HIV-RNA or CSF HIV RNA greater than plasma HIV RNA in cases where plasma HIV-RNA was quantifiable. Relapse was defined as a re-emergence of CSF HIV RNA escape with new symptoms after ART therapy intensification post-initial CSF HIV RNA escape. RESULTS: Among 40 people living with HIV who presented with neurosymptomatic CSF HIV RNA, eight (20%) presented with a relapse of CSF HIV RNA escape. Symptoms on relapse included confusion (n = 2), cognitive decline (n = 2), cerebellar dysfunction (n = 2) and worsening of pre-existing seizures (n = 1). Prior to their relapse, three people underwent drug therapy modification, with two people stopping raltegravir intensification, and one person switched from tenofovir alafenamide, emtricitabine and raltegravir for a new regimen. CONCLUSIONS: People with a relapse of CSF HIV RNA escape within this cohort presented with varied symptoms similar to their initial CSF HIV RNA escape. Clinicians should be vigilant of relapse of symptoms, particularly when simplifying ART regimens in people with CSF HIV RNA escape.

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