Publication: Long-term treatment outcomes of ritonavir-boosted lopinavir monotherapy among HIV-infected patients who experienced NRTI and NNRTI failure
Issued Date
2012-03-13
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ISSN
17426405
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2-s2.0-84857939029
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Mahidol University
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SCOPUS
Bibliographic Citation
AIDS Research and Therapy. Vol.9, (2012)
Suggested Citation
Weerawat Manosuthi, Supeda Thongyen, Samruay Nilkamhang, Sukanya Manosuthi, Somnuek Sungkanuparph Long-term treatment outcomes of ritonavir-boosted lopinavir monotherapy among HIV-infected patients who experienced NRTI and NNRTI failure. AIDS Research and Therapy. Vol.9, (2012). doi:10.1186/1742-6405-9-8 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/13773
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Title
Long-term treatment outcomes of ritonavir-boosted lopinavir monotherapy among HIV-infected patients who experienced NRTI and NNRTI failure
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Abstract
Background: We continue the previously described prospective cohort study of ritonovir-boosted lopinavir (LPV/r) monotherapy for second-line therapy in HIV-infected patients with prior failure and extensive resistance to nucleoside reverse transcriptase inhibitors (NRTIs) and non-nucleoside reverse transcriptase inhibitors (NNRTIs), with the objective being to determine the three-year treatment responses.Findings: There were 40 patients with a mean ± SD age of 37 ± 8 years. Median (IQR) baseline CD4 was 123 (37-245) cells/mm 3 and median (IQR) HIV-1 RNA was 55,800 (9,670-100,000) copies/mL. All patients received twice daily LPV/r 400/100 mg and recycled lamivudine 150 mg. By intend-to-treat analysis at 144 weeks, 26 (65%) and 22 (56%) patients achieved HIV-1 RNA at < 400 and < 50 copies/mL, respectively. In as-treated analysis, the corresponding rates were 26 of 28 (93%) and 22 of 28 (78%), respectively. Low-level viral rebound (HIV-1 RNA 50-400 copies/mL) was found in 6 (15%), 6 (15%), and 4 (10%) patients at week 48, 96 and week 144, respectively. Medians CD4 at week 48, 96, and 144 were 351, 481, and 584 cells/mm 3 and significantly changed from baseline (all, P < 0.05). There were increments of mean triglycerides at 48 weeks and 144 weeks from baseline (P < 0.05). No major protease resistance-associated mutations emerged after virologic failure.Conclusion: LPV/r monotherapy with recycled lamivudine can maintain long-term virologic suppression in a relatively small proportion of patients failing NNRTI-based regimen and having limit option for active NRTI. More antiretroviral classes are needed be accessible in resource-limited countries. © 2012 Manosuthi et al; licensee BioMed Central Ltd.
