A 96-week comparison of lopinavir-ritonavir combination therapy followed by lopinavir-ritonavir monotherapy versus efavirenz combination therapy.
Antiretroviral-naive HIV-1-infected volunteers received zidovudine/lamivudine plus either lopinavir/ritonavir (n=104) or efavirenz (n=51). Lopinavir/ritonavir-treated subjects demonstrating 3 consecutive monthly HIV-1 RNA levels <50 copies/mL started lopinavir/ritonavir monotherapy. In previous-failure=failure analysis, 48% (lopinavir/ritonavir) and 61% (efavirenz) maintained HIV-1 RNA at <50 copies/mL through week 96, (P= .17; 95% confidence interval [CI] for the difference, -29% to 4%); in noncompletion=failure analysis, 60% (lopinavir/ritonavir) and 63% (efavirenz) maintained HIV-1 RNA at <50 copies/mL at week 96 (P= .73; 95% CI for the difference, -19% to 13%). Significant sparing of peripheral lipoatrophy was noted in the lopinavir/ritonavir simplification strategy. This study has provided important information for future studies using treatment simplified to lopinavir/ritonavir monotherapy.
Cameron
D William
DW
Division of Infectious Diseases, University of Ottawa at The Ottawa Hospital, Ottawa, Ontario, Canada.
da Silva
Barbara A
BA
Arribas
Jose R
JR
Myers
Robert A
RA
Bellos
Nicholaos C
NC
Gilmore
Norbert
N
King
Martin S
MS
Bernstein
Barry M
BM
Brun
Scott C
SC
Hanna
George J
GJ
D000163:Acquired Immunodeficiency Syndrome / Q000097:blood / Q000188:drug therapy*; D000480:Alkynes; D019380:Anti-HIV Agents / Q000009:adverse effects / Q000627:therapeutic use*; D048588:Benzoxazines / Q000627:therapeutic use*; D003521:Cyclopropanes; D003967:Diarrhea / Q000139:chemically induced; D004359:Drug Therapy, Combination; D005951:Glucose Tolerance Test; D017320:HIV Protease Inhibitors / Q000009:adverse effects / Q000627:therapeutic use*; D006801:Humans; D061466:Lopinavir; D009325:Nausea / Q000139:chemically induced; D011744:Pyrimidinones / Q000627:therapeutic use*; D012367:RNA, Viral / Q000097:blood; D019438:Ritonavir / Q000627:therapeutic use*; D013997:Time Factors; D016896:Treatment Outcome; D019562:Viral Load
D000480:Alkynes; D019380:Anti-HIV Agents; D048588:Benzoxazines; D003521:Cyclopropanes; D017320:HIV Protease Inhibitors; D011744:Pyrimidinones; D012367:RNA, Viral; D061466:Lopinavir; C098320:efavirenz; D019438:Ritonavir