FDA approves ViiV Healthcare's Triumeq tablets for treatment of HIV-1 infection

Published on August 23, 2014 at 2:25 AM · No Comments

ViiV Healthcare announced today that the US Food and Drug Administration (FDA) has approved Triumeq® (abacavir 600mg, dolutegravir 50mg and lamivudine 300mg) tablets for the treatment of HIV-1 infection. Triumeq is ViiV Healthcare's first dolutegravir-based fixed-dose combination, offering many people living with HIV the option of a single-pill regimen that combines the integrase strand transfer inhibitor (INSTI) dolutegravir, with the nucleoside reverse transcriptase inhibitors (NRTIs) abacavir and lamivudine.

Triumeq alone is not recommended for use in patients with current or past history of resistance to any components of Triumeq. Triumeq alone is not recommended in patients with resistance-associated integrase substitutions or clinically suspected INSTI resistance because the dose of dolutegravir in Triumeq is insufficient in these populations. Before initiating treatment with abacavir-containing products, screening for the presence of a genetic marker, the HLA-B*5701 allele, should be performed in any HIV-infected patient, irrespective of racial origin. Products containing abacavir should not be used in patients known to carry the HLA-B*5701 allele.

Dr Dominique Limet, Chief Executive Officer, ViiV Healthcare, said: "Today's approval of Triumeq offers many people living with HIV in the US the first single-pill regimen containing dolutegravir. ViiV Healthcare is committed to delivering advances in care and new treatment options to physicians and people living with HIV. We are proud to announce this important milestone, marking the second new treatment to be approved in the US from our pipeline of medicines."

This FDA approval is based primarily upon data from two clinical trials:

  • the Phase III study (SINGLE) of treatment-naive adults, conducted with dolutegravir and abacavir/lamivudine as separate pills
  • a bioequivalence study of the fixed-dose combination of abacavir, dolutegravir and lamivudine when taken as a single pill compared to the administration of dolutegravir and abacavir/lamivudine as separate pills.

In the SINGLE study, a non-inferiority trial with a pre-specified superiority analysis, more patients were undetectable (HIV-1 RNA <50 copies/mL) in the dolutegravir and abacavir/lamivudine arm (the separate components of Triumeq) than in the Atripla® (efavirenz, emtricitabine and tenofovir) arm, the most commonly used single-pill regimen. The difference was statistically significant and met the pre-specified test for superiority. The difference was driven by a higher rate of discontinuation due to adverse events in the Atripla arm.

  • At 96 weeks, 80% of participants on the dolutegravir-based regimen were virologically suppressed compared to 72% of participants on Atripla. Grade 2-4 treatment emergent adverse reactions occurring in 2% or more participants taking the dolutegavir-based regimen were insomnia (3%), headache (2%) and fatigue (2%).
Source:

ViiV Healthcare

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