TABLE 2.
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 |
INSTI, integrase strand transfer inhibitor; NA, not available; PDVF, protocol-defined virologic failure.
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).
Treatment-emergent substitutions are in bold.
Fold change in dolutegravir susceptibility at study visits after meeting PDVF criteria except where noted. The clinical cutoff for dolutegravir is 4.0.
Genotypes at weeks 136 and 168 were E138A/E/K/T, S147G/S, and R263K and E138T, S147G, and R263K, respectively.
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.
The fold change in dolutegravir susceptibility at baseline was 0.62.