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According to the Thai National Guidelines for Treatment of HIV/AIDS 2014, the recommended first line ART regimen was 2 NRTIs backbone, TDF and FTC; plus 1 NNRTI, EFV, with RPV as an alternative one. Most of the randomized-controlled studies, including ECHO and THRIVE, showed the non-inferiority of RPV compared with EFV in naive cases. But there were not much randomized-controlled trials for changing from other NRTI to RPV in patients who currently on another ART, especially in Thailand. Moreover, the concerned adverse effects of dyslipidemia and neurological symptoms were better in RPV-based than EFV-based regimen. Finally, the cost-effectiveness and universal coverage are also the benefit of RPV over EFV in term of economics.
According to the Thai National Guidelines for Treatment of HIV/AIDS 2014, the recommended first line ART (Anti-retroviral therapy) regimen was 2 NRTIs (nucleoside reverse transcriptase inhibitors) backbone, which are TDF (Tenofovir) and FTC (Emtricitabine); plus 1 NNRTI (non-nucleoside reverse transcriptase inhibitor), which is EFV (Efavirenz), with RPV (Rilpivirine) as an alternative in this class of drug.
Most of the randomized-controlled studies, including ECHO (Rilpivirine versus efavirenz with tenofovir and emtricitabine in treatment-naive adults infected with HIV-1) and THRIVE (Rilpivirine versus efavirenz with two background nucleoside or nucleotide reverse transcriptase inhibitors in treatment-naive adults infected with HIV-1), the major trials about RPV, showed the non-inferiority in efficacy of RPV compared with that of EFV in treatment-naive cases with blood HIV viral load less than 500,000 copies/mL. But there were not many trials focusing on changing the ART-regimens from other NRTI to RPV in patients who currently on another ART, especially in randomized-controlled design. There were some studies comparing continuing current regimens versus changing to Rilpivirine-based regimens, but they didn't exclusively select the homogeneous drug components. In Thailand, study of changing to Rilpivirine-based regimens was primarily designed to evaluate the adverse outcome about dyslipidemia, whereas efficacy was a secondary outcome. Most studies, the concerned adverse effects of dyslipidemia and neurological symptoms were better in RPV-based than EFV-based regimen. Finally, the cost-effectiveness and universal coverage are also the benefit of RPV over EFV in term of economics.
Therefore, we design this study to evaluate the efficacy; in term of non-inferiority, of the newer, safer, and cheaper drug, Rilpivirine, to Efavirenz, the general-use drug with acceptable efficacy, in the virological-suppressed patients currently on ART. Besides, we also assess the adverse outcomes and factors associated with successful or failure of treatment. In addition, we can have more backup data in term of national economics.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Switching TDF/FTC/EFV to TDF/FTC/RPV | Experimental | Switching from Tenofovir 300 mg/day + Emtricitabine 200 mg/day + Efavirenz 600 mg/day (once daily) to Tenofovir 300 mg/day + Emtricitabine 200 mg/day + Rilpivirine 25 mg/day (once daily) Intervention: Tenofovir/Emtricitabine/Rilpivirine |
|
| Continuing TDF/FTC/EFV | Active Comparator | Continuing Tenofovir 300 mg/day + Emtricitabine 200 mg/day + Efavirenz 600 mg/day Intervention: Tenofovir/Emtricitabine/Efavirenz |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Tenofovir/Emtricitabine/Rilpivirine | Drug | Tenofovir/Emtricitabine/Rilpivirine to compare the non-inferiority of efficacy and adverse effects to Tenofovir/Emtricitabine/Efavirenz in patients with virological suppression |
| Measure | Description | Time Frame |
|---|---|---|
| Sustained virological response | maintain the undetectable HIV viral load | 12 months |
| Measure | Description | Time Frame |
|---|---|---|
| Lipid adverse outcome | Different in blood lipid profiles, including triglycerides, cholesterol, HDL, and LDL | 12 months |
| Neurological adverse outcome | Neurological adverse events such as dizziness |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Sirichai Wiriyatanakorn, MD | Department of Internal Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University | Principal Investigator |
| Somneuk Sungkanuparp, MD | Department of Internal Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University | Principal Investigator |
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| Background | Thai AIDS Society. Thailand National Guidelines on HIV/AIDS Treatment and Prevention 2014. Nontaburi: Bureau of AIDS, TB, and STIs, 2014. | ||
| 21763936 | Result | Molina JM, Cahn P, Grinsztejn B, Lazzarin A, Mills A, Saag M, Supparatpinyo K, Walmsley S, Crauwels H, Rimsky LT, Vanveggel S, Boven K; ECHO study group. Rilpivirine versus efavirenz with tenofovir and emtricitabine in treatment-naive adults infected with HIV-1 (ECHO): a phase 3 randomised double-blind active-controlled trial. Lancet. 2011 Jul 16;378(9787):238-46. doi: 10.1016/S0140-6736(11)60936-7. | |
| 21763935 |
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|
| Tenofovir/Emtricitabine/Efavirenz | Drug | as a active comparator |
|
|
| 12 months |
| Cost -saving after switching regimens | 12 months |
| Result |
| Cohen CJ, Andrade-Villanueva J, Clotet B, Fourie J, Johnson MA, Ruxrungtham K, Wu H, Zorrilla C, Crauwels H, Rimsky LT, Vanveggel S, Boven K; THRIVE study group. Rilpivirine versus efavirenz with two background nucleoside or nucleotide reverse transcriptase inhibitors in treatment-naive adults infected with HIV-1 (THRIVE): a phase 3, randomised, non-inferiority trial. Lancet. 2011 Jul 16;378(9787):229-37. doi: 10.1016/S0140-6736(11)60983-5. |
| 26739573 | Result | Thamrongwonglert P, Chetchotisakd P, Anunnatsiri S, Mootsikapun P. Improvement of lipid profiles when switching from efavirenz to rilpivirine in HIV-infected patients with dyslipidemia. HIV Clin Trials. 2016 Feb;17(1):12-6. doi: 10.1080/15284336.2015.1112480. Epub 2016 Jan 7. |
| 26232000 | Result | Gianotti N, Poli A, Nozza S, Spagnuolo V, Tambussi G, Bossolasco S, Cinque P, Maillard M, Cernuschi M, Galli L, Lazzarin A, Castagna A. Efficacy and safety in clinical practice of a rilpivirine, tenofovir and emtricitabine single-tablet regimen in virologically suppressed HIV-positive patients on stable antiretroviral therapy. J Int AIDS Soc. 2015 Jul 30;18(1):20037. doi: 10.7448/IAS.18.1.20037. eCollection 2015. |
| ID | Term |
|---|---|
| D050171 | Dyslipidemias |
| ID | Term |
|---|---|
| D052439 | Lipid Metabolism Disorders |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
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| ID | Term |
|---|---|
| D000068698 | Tenofovir |
| ID | Term |
|---|---|
| D063065 | Organophosphonates |
| D009943 | Organophosphorus Compounds |
| D009930 | Organic Chemicals |
| D000225 | Adenine |
| D011687 | Purines |
| D006574 | Heterocyclic Compounds, 2-Ring |
| D000072471 | Heterocyclic Compounds, Fused-Ring |
| D006571 | Heterocyclic Compounds |
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