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. Author manuscript; available in PMC: 2020 Aug 1.
Published in final edited form as: Ther Drug Monit. 2019 Aug;41(4):452–458. doi: 10.1097/FTD.0000000000000612

Table 1:

Overall descriptive characteristics of all Clinical Pharmacology Quality Assurance Proficiency Testing reported concentrations (RC) from 11 individual clinical pharmacology laboratories for 8 antiretroviral analytes during 13 rounds conducted from 2010 through 2016.

# RCs by CPL (%Acceptable)
ARV (range, ng/mL) 1 2 3 4 5 6 7 8 9 10 11 RC Score
(% Acceptable)
ARV/Round Score
(% Satisfactory)
ATV (150–12000) 65 (100) 65 (100) 60 (98) 65 (89) 65 (97) 30 (100) 45 (100) 55 (98) 55 (95) 505 (97) 101 (97)
DRV (350–12000) 65 (98) 65 (100) 60 (100) 50 (100) 65 (100) 50 (96) 45 (100) 55 (100) 65 (98) 520 (99) 104 (99)
EFV (230–20000) 65 (100) 65 (100) 55 (95) 65 (100) 65 (100) 65 (100) 45 (100) 60 (98) 50 (100) 50 (92) 585 (99) 117 (98)
FTC (25–4500) 65 (100) 65 (100) 65 (94) 25 (100) 30 (100) 20 (70) 65 (100) 60 (88) 15 (100) 410 (96) 82 (93)
LPV (220–24000) 65 (100) 65 (100) 60 (98) 65 (100) 65 (97) 65 (100) 45 (100) 50 (80) 50 (98) 55 (93) 585 (97) 117 (96)
NVP (225–12000) 65 (100) 65 (100) 55 (91) 65 (100) 65 (89) 50 (96) 60 (90) 54 (96) 479 (95) 96 (96)
RTV (75–5800) 30 (67) 65 (100) 60 (98) 65 (97) 55 (84) 65 (98) 45 (100) 60 (93) 65 (97) 45 (100) 555 (95) 111 (95)
TFV (30–600) 65 (97) 65 (100) 65 (95) 25 (100) 60 (98) 35 (100) 65 (100) 60 (92) 15 (100) 15 (100) 470 (98) 94 (96)
RC Score
(% Acceptable)
485 (97) 520 (100) 130 (95) 400 (97) 465 (98) 400 (94) 360 (99) 355 (100) 460 (93) 315 (98) 219 (95)
ARV/Round Score
(% Satisfactory)
97 (97) 104 (100) 26 (92) 80 (98) 93 (97) 80 (93) 72 (97) 71 (100) 92 (89) 63 (98) 44 (95) 4109(97) 822(96)

CPL: clinical pharmacology laboratory, ARV: antiretroviral, RC: reported concentration, ATV: atazanavir, DRV: darunavir, EFV: efavirenz, FTC: emtricitabine, LPV: lopinavir, NVP: nevirapine, RTV: ritonavir, and TFV: tenofovir