- |||||||||| bictegravir (GS-9883) / Gilead, Tivicay (dolutegravir) / ViiV Healthcare
Selection of integrase inhibitor (INI) resistance mutations in an INI experienced patient treated by Bictegravir (Exhibition hall) - Nov 15, 2019 - Abstract #EACS2019EACS_1543; This case report suggests that TAF/FTC/BIC should not be used in patient with previous selection of INI resistance mutation and this kind of patient should receive only Dolutegravir (DTG) 50mg twice a day if an INI based regimen has to be used. Bictegravir is able to select various INI resistance mutations at least in viruses already harboring INI resistance.
- |||||||||| Tivicay (dolutegravir) / ViiV Healthcare
Integrase inhibitor negatively affects CD8 T-cell function (ePosters area) - Nov 15, 2019 - Abstract #EACS2019EACS_1428; Our data show that the choice of ART can have a significant impact on CD8 T-cell effector function and may have important implications for eradication strategies. [Decreased polyfunctionality and proliferation capacity ex vivo]
- |||||||||| Tivicay (dolutegravir) / ViiV Healthcare
Extension of HIV treatment coverage in Ukraine through advocating access of dolutegravir generics to market (San Francisco) - Nov 15, 2019 - Abstract #EACS2019EACS_1389; The 100 Percent Life's project demonstrates possibility to extend HIV treatment coverage by advocating access of DTG generics to the market. Funds allocated as a result of budget savings were used for procurement of additional prophylaxis, support and care services for key-groups as envisaged within the transition plan from the donors funding.
- |||||||||| Use of ibalizumab in a heavily treatment-experienced HIV-1-infected subject harbouring a multidrug-resistant virus (Exhibition hall) - Nov 15, 2019 - Abstract #EACS2019EACS_1370;
A Genotyping Susceptibility Tests (GSTs) was performed and, according to the Stanford HIVdb interpretation, identified: - on plasma RNA: susceptibility to doravirine (DOR)/etravirine (ETV)/rilpivirine (RPV), all integrase strand transfer inhibitors (INSTIs) and enfuvirtide (ENF); different degrees of resistance to DRV/r, all nucleoside reverse transcriptase inhibitors (NRTIs); a R5-tropic virus was found; - on blood DNA: susceptibility to DRV/r and emtricitabine (FTC)/abacavir (ABC); different degrees of resistance to tenofovir(TDF)/ABC, DOR/ETV, RPV, dolutegravir (DTG), ENF; a X4-tropic virus was found...Thanks to the “5% Fund” of the Italian Medicines Agency, this man received an initial loading dose of IBA (2000 mg/iv) followed by maintenance doses (800 mg/iv every 15 days) in association with a recycling regimen including FTC/RPV/tenofovir alafenamide 200/25/25 mg QD, DTG 50 mg BID, maraviroc 150 mg BID, ENF 90 mg BID (replaced with DRV/r 600/100 mg BID after 12 weeks to improve acceptability)...In this man IBA, plus an OBT with residual antiviral activity, favoured the achievement of virological control, at least in the short-term. Management of patients with no fully active drugs is an unmet clinical need and novel classes such as CD4-binding monoclonal antibodies may have a key role.
- |||||||||| Prezista (darunavir) / J&J, bictegravir (GS-9883) / Gilead, Tivicay (dolutegravir) / ViiV Healthcare
Rapid ART start in primary HIV infection: time to viral suppression in a London cohort (Exhibition hall) - Nov 15, 2019 - Abstract #EACS2019EACS_1288; Rapid start with INSTI regimens results in quicker viral suppression than with PI-based regimens in PHI, even when PIs are subsequently switched to INSTIs. Concerns about lack of a baseline VRT result prior to rapid ART start may potentially be overcome by the use of the newer INSTIs with a high genetic barrier such as dolutegravir and bictegravir.
- |||||||||| bictegravir (GS-9883) / Gilead, Tivicay (dolutegravir) / ViiV Healthcare, Vitekta (elvitegravir) / Japan Tobacco, Gilead
Human embryonic stem cells exposed to dolutegravir show decreased cellular proliferation, reduced pluripotency, and increased mitochondrial toxicity, in a dose-dependent manner: preliminary data (Exhibition hall) - Nov 15, 2019 - Abstract #EACS2019EACS_1044; These preliminary data suggest that even low dose exposure to DTG may induce mitochondrial toxicity and differentiation in hESCs. Given the widespread use of DTG and other InSTIs prior, during, and after conception, it is imperative to further elucidate their short and long-term safety in the context of pregnancy.
- |||||||||| Tivicay (dolutegravir) / ViiV Healthcare
Neurotoxicity related to efavirenz does not predict neurotoxicity related to dolutegravir (Exhibition hall) - Nov 15, 2019 - Abstract #EACS2019EACS_1043; Given the widespread use of DTG and other InSTIs prior, during, and after conception, it is imperative to further elucidate their short and long-term safety in the context of pregnancy. The history of neuropsychiatric adverse effects related to EFV does not predict the development neuropsychiatric toxicity by DTG.
- |||||||||| Tivicay (dolutegravir) / ViiV Healthcare, Vitekta (elvitegravir) / Japan Tobacco, Gilead
Weight gain among HIV-positive persons treated with dolutegravir or elvitegravir (Exhibition hall) - Nov 15, 2019 - Abstract #EACS2019EACS_1039; This effect was less pronounced in elderly patients. On EVG, weight gain was continuous over time, whereas on DVG, weight initially increased and then stabilized.
- |||||||||| Predictors of weight gain in patients treated with dolutegravir (Exhibition hall) - Nov 15, 2019 - Abstract #EACS2019EACS_1034;
In SCOLTA the use of TDF/FTC resulted as independent factor associated with weight gain in PLWHIV treated with DTG. Male patients with lower baseline weight and lower CD4 were those more prone to gain weight.
- |||||||||| lamivudine / Generic Mfg., Tivicay (dolutegravir) / ViiV Healthcare
Lower incidence of liver steatosis in patients treated with lamivudine plus dolutegravir dual therapy (Exhibition hall) - Nov 15, 2019 - Abstract #EACS2019EACS_928; Further accumulation of cases is considered necessary and will be studied. Although NAFLD remains a common finding in HIV-infected patients receiving ART, those on DTG + 3TC seemed less likely to develop this condition, thus suggesting a safer metabolic profile of the 2-drug regimen when compared to standard cART.
- |||||||||| Prezista (darunavir) / J&J, Tivicay (dolutegravir) / ViiV Healthcare
No metabolic or renal benefits when switching to an NRTI-free dolutegravir-containing 2 drug regimen (2DR) - a subanalysis of the DUALIS study (Exhibition hall) - Nov 15, 2019 - Abstract #EACS2019EACS_887; Purpose: The DUALIS study assessed efficacy and safety of switching to Dolutegravir (DTG) and boosted darunavir (bDRV) (2DR) and has demonstrated non-inferiority as compared to 2 NRTI+bDRV (3DR). While being non-inferior with regard to virologic suppression, a switch to a 2DR consisting of DTG+bDRV does not yield significant metabolic or renal advantages by substituting the NRTI components of a comparative 3DR antiretroviral therapy.
- |||||||||| Tivicay (dolutegravir) / ViiV Healthcare
Switch to dolutergravir dual regimens and imflammation mediated by annexin (Exhibition hall) - Nov 15, 2019 - Abstract #EACS2019EACS_873; Annexins levels were not altered after 48 weeks DTG-based dual therapy switch, indicating that there are no inflammatory and endothelial changes after switch. These data will be confirmed in a larger population.
- |||||||||| Lamivudine-based maintenance 2-drugs regimens: an algorithm for the estimation of 2-years risk of virological failure in clinical practice (Exhibition hall) - Nov 15, 2019 - Abstract #EACS2019EACS_831;
From a multicentre Italian cohort of patients with undetectable HIV-RNA (according to the centre-specific threshold) and negative HBsAg-serostatus, starting lamivudine plus a bPI (darunavir, atazanavir or lopinavir) or dolutegravir, predictors of VF (i.e., a single HIV-RNA≥1000 cp/mL or 2 consecutive HIV-RNA≥50 cp/mL) at 2 years were analysed by Cox regression. Some viro-immunological characteristics of patients switching to a lamivudine-based maintenance dual-therapy can be incorporated in a useful algorithm to identify subjects at higher risk of VF.
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