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| Formula | C33H41N3O10S2 |
| Molar mass | 703.82 g·mol−1 |
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Brecanavir (INN; codenamed GW640385) is a protease inhibitor which has been studied for the treatment of HIV. [1]
In December 2006, its developer, GlaxoSmithKline discontinued further development because of insurmountable issues regarding formulation. [2]
Paroxetine, sold under the brand names Paxil and Seroxat among others, is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class. It is used to treat major depressive disorder, obsessive-compulsive disorder, panic disorder, social anxiety disorder, post-traumatic stress disorder, generalized anxiety disorder, and premenstrual dysphoric disorder. It has also been used in the treatment of premature ejaculation and hot flashes due to menopause. It is taken orally.
GSK plc is a British multinational pharmaceutical and biotechnology company with global headquarters in London. Established in 2000 by a merger of Glaxo Wellcome and SmithKline Beecham, GSK is the tenth largest pharmaceutical company and #294 on the 2022 Fortune Global 500, ranked behind other pharmaceutical companies China Resources, Sinopharm, Johnson & Johnson, Pfizer, Roche, AbbVie, Novartis, Bayer, and Merck Sharp & Dohme.
Lamivudine, commonly called 3TC, is an antiretroviral medication used to prevent and treat HIV/AIDS. It is also used to treat chronic hepatitis B when other options are not possible. It is effective against both HIV-1 and HIV-2. It is typically used in combination with other antiretrovirals such as zidovudine, dolutegravir, and abacavir. Lamivudine may be included as part of post-exposure prevention in those who have been potentially exposed to HIV. Lamivudine is taken by mouth as a liquid or tablet.
Saquinavir, sold under the brand name Invirase among others, is an antiretroviral medication used together with other medications to treat or prevent HIV/AIDS. Typically it is used with ritonavir or lopinavir/ritonavir to increase its effect. It is taken by mouth.
Amprenavir is a protease inhibitor used to treat HIV infection. It was approved by the Food and Drug Administration on April 15, 1999, for twice-a-day dosing instead of needing to be taken every eight hours. The convenient dosing came at a price, as the dose required is 1,200 mg, delivered in 8 (eight) very large 150 mg gel capsules or 24 (twenty-four) 50 mg gel capsules twice daily.
Darunavir (DRV), sold under the brand name Prezista among others, is an antiretroviral medication used to treat and prevent HIV/AIDS. It is generally recommended for use with other antiretrovirals. It is often used with low doses of ritonavir or cobicistat to increase darunavir levels. It may be used for prevention after a needlestick injury or other potential exposure. It is taken by mouth once to twice a day.
Radafaxine (developmental code name GW-353,162), also known as (2S,3S)-hydroxybupropion or (S,S)-hydroxybupropion, is a norepinephrine–dopamine reuptake inhibitor (NDRI) which was under development by GlaxoSmithKline in the 2000s for a variety of different indications but was never marketed. These uses included treatment of restless legs syndrome, major depressive disorder, bipolar disorder, neuropathic pain, fibromyalgia, and obesity. Regulatory filing was planned for 2007, but development was discontinued in 2006 due to "poor test results".
HIV-1 protease (PR) is a retroviral aspartyl protease (retropepsin), an enzyme involved with peptide bond hydrolysis in retroviruses, that is essential for the life-cycle of HIV, the retrovirus that causes AIDS. HIV protease cleaves newly synthesized polyproteins at nine cleavage sites to create the mature protein components of an HIV virion, the infectious form of a virus outside of the host cell. Without effective HIV protease, HIV virions remain uninfectious.
The maturation inhibitors are a class of antiviral drugs for the treatment of infection with HIV. They act by interfering with the maturation of the virus. Specifically, drugs in this class disrupt the final step in the processing of the HIV-1 gag protein, the cleavage of its immediate precursor by the enzyme HIV-1 protease. Unlike the class of drugs known as protease inhibitors, maturation inhibitors bind the gag protein, not the protease. This leads to the formation of noninfectious, immature virus particles, incapable of infecting other cells. No other class of drugs shares this mechanism of action, thus maturation inhibitors retain inhibitory activity against HIV infections with resistance.
Aplaviroc is a CCR5 entry inhibitor that belongs to a class of 2,5-diketopiperazines developed for the treatment of HIV infection. It was developed by GlaxoSmithKline.
Casopitant (INN), former tentative trade names Rezonic (U.S.) and Zunrisa (Europe), is an NK1 receptor antagonist which was undergoing research for the treatment of chemotherapy-induced nausea and vomiting. It was under development by GlaxoSmithKline. In July 2008, the company filed a marketing authorisation application with the European Medicines Agency. The application was withdrawn and development was discontinued in September 2009 because GlaxoSmithKline decided that further safety assessment was necessary. However, a 2022 review listed casopitant as under development as a potential novel antidepressant for the treatment of major depressive disorder, with a phase 2 clinical trial having been completed.
Darapladib is an inhibitor of lipoprotein-associated phospholipase A2 (Lp-PLA2) that is in development as a drug for treatment of atherosclerosis.
NS-2359 (GSK-372,475) is a serotonin-norepinephrine-dopamine reuptake inhibitor. It was under development by GlaxoSmithKline (GSK) as an antidepressant, but was discontinued in 2009 when phase II clinical trials showed the drug was not effective and not well tolerated. The results did not support further effort by the company. NS-2359 was also in clinical trials for the treatment of ADHD, phase II having been completed in 2007. A phase I clinical trial exploring the effect of NS-2359 on cocaine-dependent individuals was completed in 2002.
Many major physiological processes depend on regulation of proteolytic enzyme activity and there can be dramatic consequences when equilibrium between an enzyme and its substrates is disturbed. In this prospective, the discovery of small-molecule ligands, like protease inhibitors, that can modulate catalytic activities has an enormous therapeutic effect. Hence, inhibition of the HIV protease is one of the most important approaches for the therapeutic intervention in HIV infection and their development is regarded as major success of structure-based drug design. They are highly effective against HIV and have, since the 1990s, been a key component of anti-retroviral therapies for HIV/AIDS.
ViiV Healthcare is a British multinational pharmaceutical company specializing in the research and development of medicines to treat and prevent HIV/AIDS, with global headquarters in London. The company was created as a joint venture by GSK and Pfizer in November 2009, with both companies transferring their HIV assets to the new company. In 2012 Shionogi joined the company. 76.5% of the company is owned by GSK, 13.5% by Pfizer and 10% by Shionogi. According to The Financial Times, the company’s coownership structure may change depending upon the achievement of certain milestones.
Foretinib is an experimental drug candidate for the treatment of cancer. It was discovered by Exelixis and is under development by GlaxoSmithKline. About 10 Phase II clinical trials have been run. As of October 2015 it appears development has been discontinued.
Testosterone/dutasteride is a combination formulation of testosterone, an androgen, and dutasteride, a 5α-reductase inhibitor, which was under development by GlaxoSmithKline for the treatment of hypogonadism in men in the 2000s. It reached phase II clinical trials prior to the discontinuation of its development.
Joshua S. Boger is an organic chemist and the founder of Vertex Pharmaceuticals Incorporated. He is considered a pioneer in the field of structure-based rational drug design. Drugs developed include amprenavir, an HIV protease inhibitor; telaprevir, a protease inhibitor for treatment of hepatitis C; and Kalydeco, for the treatment of cystic fibrosis. In 2003, Vertex was listed as one of forty worldwide Technology Pioneers by the World Economic Forum. As of 2012, Boger became executive chairman of Alkeus Pharmaceuticals.
Fosdevirine is an experimental antiviral agent of the non-nucleoside reverse transcriptase inhibitor class that was studied for potential use in the treatment of HIV-AIDS.
TMC-310911 is an antiviral drug which was originally researched as a treatment for HIV/AIDS. It is a protease inhibitor related to darunavir. While TMC-310911 was not ultimately developed as a medication for the treatment of AIDS, research has continued into potential applications in the treatment of other viral diseases, and in March 2020 it was entered into clinical trials for the treatment of COVID-19.
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