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. 2022 Jan 18;66(1):e01645-21. doi: 10.1128/AAC.01645-21

TABLE 2.

Genotype at baseline and PDVF in participants with INSTI resistance-associated substitutionsa

Patient Wk of PDVFb Integrase
Protease Reverse transcriptase
Baseline PDVFc Fold change in dolutegravir sensitivityd Baseline PDVFb Baseline PDVFc
1 32 L74L/M R263K/R e 1.1f I84I/V
2 168 L74M, G118R 25.1 M41L, T215L M41L, T215F/L
3 40 V151I G118R, E138E/K, V151I 5.9 K103S, V106I/V, V179I/V, M184M/V, G190A, Y318F K103S, M184V, G190A
4 24 E92E/Q, G118G/R NA T69A/D/N/T M184V
5 24 L74I L74I, G118R 9.6g M184V, H221Y M184V, H221Y
6 24 L74I T66I, L74I, G118R 19.3 K20R K20R V179I, M184V, K238R V179I, M184V, K238R
7 192 NA E157Q NA V179I V179I
8 24 NA L74I NA L10I/L, K20K/R, L33F, M46I, I50V, I54V, T74P, V82A L10I/L, K20K/R, L33F/L, M46I/M, I50I/V, I54I/V, T74P/T, V82A/V M41L, D67N, T69N/T, K70R, L74I, A98G, M184V, T215F, K219Q, K238R M41L/M, D67D/N, T69N/T, K70K/R, L74I/L, A98A/G, M184M/V, T215F/I/S/T, K219Q, M230I/M, K238R
a

INSTI, integrase strand transfer inhibitor; NA, not available; PDVF, protocol-defined virologic failure.

b

Testing for resistance took place at the next available time point after PDVF for participant 1 (week 36), participant 2 (week 192), and participant 3 (week 52).

c

Treatment-emergent substitutions are in bold.

d

Fold change in dolutegravir susceptibility at study visits after meeting PDVF criteria except where noted. The clinical cutoff for dolutegravir is 4.0.

e

Genotypes at weeks 136 and 168 were E138A/E/K/T, S147G/S, and R263K and E138T, S147G, and R263K, respectively.

f

The fold change in dolutegravir susceptibility at weeks 136 and 168 was 5.0 and 5.1, respectively. The fold change in dolutegravir susceptibility at baseline was 1.04.

g

The fold change in dolutegravir susceptibility at baseline was 0.62.