From: Cerebrospinal fluid HIV-1 RNA, intrathecal immunoactivation, and drug concentrations after treatment with a combination of saquinavir, nelfinavir, and two nucleoside analogues: the M61022 study
Plasma
CSF
total (μM)
unbound (nM)
total (nM)
Saquinavir
0.3 (< 0.08–6.6)
< 2.5 (< 2.5–96.0)
< 2.5 (< 2.5–9.0)
Nelfinavir
4.1 (< 0.13–10.6)
10.0 (< 2.0–31.0)
< 2.0 (< 2.0–23.0)