PMID- 19541575 OWN - NLM STAT- MEDLINE DCOM- 20090707 LR - 20211020 IS - 0949-2321 (Print) IS - 2047-783X (Electronic) IS - 0949-2321 (Linking) VI - 14 IP - 5 DP - 2009 May 14 TI - Switch from a ZDV/3TC-based regimen to a completely once daily (QD) regimen of emtricitabine/tenofovir DF fixed dose combination plus a third QD agent (SONETT). PG - 195-9 AB - OBJECTIVES: To assess the efficacy and safety of a treatment switch from a twice-daily (BID) regimen containing zidovudine (ZDV) and lamivudine (3TC) plus a third agent to a once daily (QD) regimen containing the fixed-dose combination of tenofovir DF/emtri?citabine (TDF/FTC, Truvada) plus a divergent third QD agent in HIV-1 infected patients. METHODS: Prospective, 48-week, non-randomised, single-group, open-label, study. Fifty-one patients on stable ZDV/3TC-containing HAART, with HIV-1 RNA <50 copies/ml and CD4+ T-cell count >50 cells/microl, were switched to TDF/FTC plus a third agent. Plasma HIV-1 RNA, CD4+ and CD8+ T-cell counts were assessed at baseline and weeks 4, 12, 24, 36 and 48 post-switch. RESULTS: During the 48-week study, 10 patients discontinued prematurely, including three due to adverse events (AEs). At week 48, plasma HIV-1 RNA was <50 copies/ml in 40 patients (78.4%). No patient experienced virological failure (defined as HIV-1 RNA > or =50 copies/ml at two consecutive post-baseline measurements) during the study. Immunologic control was maintained, with no significant changes in CD4+ or CD8+ T-cell counts. A statistically significant improvement from baseline in haemoglobin level was observed at week 48 (median change 0.8 g/dl; p<0.001). There was also a statistically significant decrease in total cholesterol concentration at week 48 (-26.0 mg/dl; p = 0.001) in a subset of patients (n = 22) entering the study with elevated total cholesterol. Treatment was well tolerated and no treatment-related grade 3 or 4 AEs were seen. - CONCLUSIONS: Results from this study support switching from a ZDV/3TC-containing HAART regimen to a completely QD regimen of TDF/FTC plus a third agent. Virologic and immunologic control are maintained, with apparent benefits in haemoglobin. FAU - Arasteh, Keikawus AU - Arasteh K AD - Epimed, Berlin, Germany. keikawus.arasteh@vivantes.de FAU - Weitner, L AU - Weitner L FAU - Fenske, S AU - Fenske S FAU - Kuhlmann, B AU - Kuhlmann B FAU - Freiwald, M AU - Freiwald M FAU - Ebrahimi, R AU - Ebrahimi R FAU - Gallo, L AU - Gallo L FAU - Ranneberg, R AU - Ranneberg R FAU - Mertenskoetter, T AU - Mertenskoetter T LA - eng PT - Clinical Trial, Phase III PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Eur J Med Res JT - European journal of medical research JID - 9517857 RN - 0 (Anti-HIV Agents) RN - 0 (Drug Combinations) RN - 0 (Hemoglobins) RN - 0 (Organophosphonates) RN - 0 (RNA, Viral) RN - 0W860991D6 (Deoxycytidine) RN - 2T8Q726O95 (Lamivudine) RN - 4B9XT59T7S (Zidovudine) RN - 99YXE507IL (Tenofovir) RN - G70B4ETF4S (Emtricitabine) RN - JAC85A2161 (Adenine) SB - IM MH - Adenine/administration & dosage/adverse effects/*analogs & derivatives MH - Adult MH - Aged MH - Anti-HIV Agents/*administration & dosage/adverse effects MH - Antiretroviral Therapy, Highly Active MH - Deoxycytidine/administration & dosage/adverse effects/*analogs & derivatives MH - Drug Administration Schedule MH - Drug Combinations MH - Emtricitabine MH - Female MH - HIV Infections/*drug therapy/virology MH - HIV-1/genetics/isolation & purification MH - Hemoglobins/analysis/drug effects MH - Humans MH - Lamivudine/*administration & dosage/adverse effects MH - Male MH - Middle Aged MH - Organophosphonates/*administration & dosage/adverse effects MH - Prospective Studies MH - RNA, Viral/blood MH - Tenofovir MH - Treatment Outcome MH - Viral Load MH - Young Adult MH - Zidovudine/*administration & dosage/adverse effects PMC - PMC3351977 EDAT- 2009/06/23 09:00 MHDA- 2009/07/08 09:00 PMCR- 2009/05/14 CRDT- 2009/06/23 09:00 PHST- 2009/06/23 09:00 [entrez] PHST- 2009/06/23 09:00 [pubmed] PHST- 2009/07/08 09:00 [medline] PHST- 2009/05/14 00:00 [pmc-release] AID - 2047-783X-14-5-195 [pii] AID - 10.1186/2047-783x-14-5-195 [doi] PST - ppublish SO - Eur J Med Res. 2009 May 14;14(5):195-9. doi: 10.1186/2047-783x-14-5-195.