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GSK to change HIV treatment paradigm

Lee Han-soo  Published 2018.11.22  17:04  Updated 2018.11.22 17:04

공유
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GSK and ViiV Healthcare said their two-drug human immunodeficiency virus (HIV) regimen -- dolutegravir (DTG) and lamivudine (3TC) – would change the conventional three-drug HIV regimen, in a news conference here Thursday.

ViiV Healthcare’s Global Medical Director Francois Clavel explains the importance of changing HIV treatment from a three-drug regimen to a two-drug regimen during a news conference at the Korea Press Center in downtown Seoul, on Thursday.

ViiV Healthcare is a joint venture of GlaxoSmithKline, Pfizer and Shionogi.

Currently, standard HIV therapy consists of a three-drug regimen. However, through GSK’s global GEMINI 1 and 2 studies, which included more than 1400 HIV-1 infected adults, the company has confirmed the possibility of producing the same therapeutic effect with only two drugs with the same excellent efficacy and strong resistance profile.

“HIV-infected people who have to take drugs their entire life have concerns about receiving long-term drug treatment,” Dr. Francois Clavel, global medical director for ViiV Healthcare said. “If the two regimen treatment can inhibit the virus in the same way as the conventional three-regimen treatment, HIV patients may not need to take more medication than is needed, while reducing costs they spend on the drug.”

Also, HIV-infected individuals exposed to lifelong treatments can reduce the risk of potential drug toxicity through the two-drug regimen, Clavel added.

During the meeting, GSK also introduced the results of GEMINI 1 and 2. “HIV is a disease that requires continuous management, and for the conventional treatment patients diagnosed in their 20s had to take up to approximately 60,225 pills during their lifetime to treat the disease,” said GSK Korea's Medical Advisor Ann Hea-won said. “However, with the two-drug regimen, the patients only need to take 40,000 pills.”

The decrease in the number of pills does not mean that the treatment is less effective, she added.

In the GEMINI study, the company assessed the safety and efficacy of the two-drug regimen of dolutegravir (DTG) and lamivudine (3TC) compared to a three-drug regimen of dolutegravir and two nucleoside reverse transcriptase inhibitors (NRTIs), tenofovir disoproxil fumarate/emtricitabine (TDF/FTC), in treatment-naive, HIV-1 infected adults with baseline viral loads up to 500,000 copies per milliliter.

At the 48th week, the study showed 91 percent of the patients treated with the two-drug regimen achieved virological suppression, the standard of HIV management, compared to the 93 percent of patients in the three-drug regimen group.

The results confirmed the similar efficacy of the two-drug regimen compared to the conventional treatment.

When asked by Korea Biomedical Review if the company ever plans to decrease the drug intake to dolutegravir alone, Dr. Clavel noted that the company currently has no plans to use dolutegravir as a monotherapy.

“It is not about decreasing the number of drugs that patients take,” he said. “For the company to say that it has succeeded in developing treatment is if it has achieved a comparable result when comparing it with the results of the three-regimen treatment.”

The Gemini study shows that result as it proves that patients who took a three-drug regimen can have the same therapeutic benefits while taking the two-drug regimen. Clavel added.

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