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March 2018

CROI 2018—DTG versus LPV/r in second line (DAWNING): Outcomes by WHO-recommended NRTI Backbone 1

Effectiveness of dolutegravir-based ART vs WHO-recommended lopinavir/ritonavir-based ART as second-line treatment

  • Non-inferiority study comparing DTG + 2 NRTIs with a WHO-recommended regimen of LPV/r + 2 NRTIs in HIV-1-infected adults failing first-line therapy (HIV-1 RNA ≥400 copies [c]/mL) of NNRTI + 2 NRTIs
  • Week 24: DTG + 2 NRTIs was superior to lopinavir/ritonavir (LPV/r) + 2 NRTIs, with 82% (n=257) and 69% (n=215) of subjects achieving HIV-1 RNA <50 c/mL, respectively (P<0.001)
  • Difference primarily driven by lower rates of Snapshot virological non-response in the DTG group
  • Response rates were higher within each arm among the 56% (n=347) of subjects receiving WHO-recommended second-line NRTIs; however, response rates were higher with DTG- vs LPV/r-based regimens regardless of WHO-recommended NRTI use
  • The overall safety profile of DTG + 2 NRTIs was favourable compared with LPV/r + 2 NRTIs
  • Access DAWNING data previously presented at IAS regarding protocol-defined virological failure favouring the DTG arm here

Access the full abstract here.

 

…regardless of WHO-recommended NRTI use, response rates were higher with DTG versus LPV/r-based regimens..

 

Reference:

  1. DTG versus LPV/r in second line (DAWNING): Outcomes by WHO-recommended NRTI Backbone. Presented at: Conference on Retroviruses and Opportunistic Infections; March 4-7, 2018; Boston, MA.