Ritonavir, also known as Norvir, is a type of medicine called a protease inhibitor (PI). PIs act by blocking protease, a protein that HIV needs to make more copies of itself. Ritonavir was approved by the FDA on March 1, 1996, for use with other antiretroviral agents in the treatment of HIV infection in adults and children 2 years of age or older. Ritonavir is now approved with other anti-HIV drugs in the treatment of HIV-1 infection in children in individuals over 1 month in age. Studies have shown that ritonavir works as a booster for some other PIs. Taking ritonavir makes it possible to take a lower dose of the other PIs. This medicine does not cure or prevent HIV infection or AIDS and does not reduce the risk of passing the virus to other people.
At the 17th Conference on Retroviruses and Opportunistic Infections (CROI), ViiV Healthcare presented new data across its broad range of investigational and current medicines for the treatment of HIV/AIDS. Highlighted data at the conference included an oral presentation on the investigational integrase inhibitor, S/GSK1349572, as well as data presentations on SELZENTRY® (maraviroc) and EPZICOM® (abacavir/lamivudine).
Pharmacokinetic/pharmacodynamic (PK/PD) data for TBR-652, which is being developed by Tobira Therapeutics for the treatment of HIV infection, show a strong relationship between drug exposure and viral suppression with this next-generation CCR5 receptor antagonist. These data were presented here today at the 17th Conference on Retroviruses and Opportunistic Infections (CROI).
Gilead Sciences, Inc. announced Phase II clinical trial results today showing that its investigational fixed-dose single-tablet “Quad” regimen of elvitegravir, GS 9350 (cobicistat) and Truvada® (emtricitabine and tenofovir disoproxil fumarate) for the treatment of HIV infection exhibited antiretroviral activity comparable to that of Atripla® (efavirenz 600 mg/ emtricitabine 200 mg/ tenofovir disoproxil fumarate 300 mg).
In a new study of treatment-experienced HIV-1-infected adults with no PREZISTA® (darunavir) resistance-associated mutations (RAMs), 72 percent of patients in the PREZISTA/ritonavir (r) (800/100 mg) once-daily arm achieved undetectable viral loads (<50 copies/mL) compared with 71 percent of patients in the PREZISTA/r (600/100 mg) twice-daily arm. The study met its primary objective of non-inferiority. These data from the Phase 3b ODIN study were presented today at CROI 2010, the 17th Conference on Retroviruses and Opportunistic Infections, in San Francisco.
Pharmasset, Inc. announced today the complete enrollment by Roche of the 12 week RG7128 Phase 2b study (PROPEL) of approximately 400 treatment-naive patients with hepatitis C virus (HCV) genotypes 1 and 4. The study remains blinded to Roche and Pharmasset.
Abbott announced today that the U.S. Food and Drug Administration (FDA) has granted approval of a new tablet formulation of the company's antiretroviral medication Norvir ® (ritonavir). The new Norvir tablets can be stored at room temperature and do not require refrigeration, making it more convenient for patients.
Tibotec Therapeutics announced today that the U.S. Food and Drug Administration (FDA) has approved a labeling update for PREZISTA® (darunavir) tablets to include 96-week data from the ARTEMIS and TITAN studies.
The controversy around Merck and Co. Pharmaceuticals’ pricing for its key AIDS drug Isentress — at nearly $13,000 per patient yearly, the most expensive first line AIDS therapy on the US market today — continued this week following Merck’s reaction to recent public criticism of its AIDS drug pricing. Merck ramped up its damage control PR efforts, issuing a press release that sought to rewrite the history of Isentress and deflect attention by claiming AIDS Healthcare Foundation has been unfairly attacking them.
Gilead Sciences, Inc. today announced that a Phase II clinical trial of its investigational integrase inhibitor-based, once-daily, fixed-dose “Quad” regimen of elvitegravir, GS 9350 and Truvada® (emtricitabine and tenofovir disoproxil fumarate) for the treatment of HIV-1 infection met its primary objective.
Eli Lilly and Company (NYSE: LLY), Kowa Company, Limited, and Kowa's U.S. subsidiary, Kowa Pharmaceuticals America, Inc., today announced that Lilly and Kowa Pharmaceuticals America have entered into a co-promotion agreement in the United States to commercialize LIVALO® (pitavastatin). Lilly and Kowa have also entered into a licensing agreement in Latin America. LIVALO is a statin approved by the U.S. Food and Drug Administration (FDA) in August 2009 for the treatment of primary hyperlipidemia and mixed dyslipidemia.
The U.S. Food and Drug Administration (FDA) Endocrinologic and Metabolic Drugs Advisory Committee (EMDAC) today voted 12 yes, 4 no, and 1 abstention that AstraZeneca has established sufficient benefit to offset the observed risks to support the use of CRESTOR®
Bristol-Myers Squibb Company today announced that more than 80 abstracts highlighting compounds from the company’s oncology portfolio will be presented at the 51st Annual Meeting of the American Society of Hematology (ASH) to be held December 5-8 in New Orleans.
The FDA granted traditional approval for INTELENCE® (etravirine) tablets, a non-nucleoside reverse transcriptase inhibitor (NNRTI). INTELENCE is the only NNRTI specifically indicated for use in treatment-experienced adults who are experiencing virologic failure with HIV-1 strains resistant to an NNRTI and other antiretroviral (ARV) agents.
Pfizer announced today that the U.S. Food and Drug Administration (FDA) has approved Revatio® (sildenafil) Injection, an intravenous formulation of Revatio. Revatio is the only FDA-approved phosphodiesterase-5 (PDE5) inhibitor available in both tablet and intravenous formulations.
InterMune, Inc. today announced that the on-going Phase 2b study conducted by Roche of ITMN-191 (RG7227) combined with standard of care (SOC) PEGASYS® (peginterferon alfa-2a) and COPEGUS® (ribavirin) in HCV treatment-naive patients has been modified.
Concert Pharmaceuticals, Inc. announced today that it has initiated a Phase 1b clinical study with CTP-518, its investigational oral HIV protease inhibitor for the treatment of HIV infection. In connection with the start of this multiple ascending dose arm of the Phase 1 study, Concert will receive a $12 million milestone payment under the company’s strategic alliance with GlaxoSmithKline.
Schering-Plough Corporation reported that interim results from an ongoing Phase IIa study of narlaprevir (SCH 900518), its investigational, once-daily protease inhibitor, demonstrated potent antiviral activity in treatment-naive patients with chronic hepatitis C virus (HCV) genotype 1.
Merck Frosst Canada Ltd. is pleased to announce that (Pr)ISENTRESS(R) (raltegravir) is now indicated for use in treatment-naïve HIV-1 infected adults in combination with other antiretroviral agents.
AstraZeneca today announced the U.S. Food and Drug Administration (FDA) approved CRESTOR® (rosuvastatin calcium) for use in pediatric patients ages 10-17 with heterozygous familial hypercholesterolemia (HeFH) when diet therapy fails to reduce elevated cholesterol. HeFH, a genetic disease, is characterized by high LDL cholesterol (the "bad" cholesterol) and increased risk of early cardiovascular disease.
A $6 million, five-year federal grant to The Children's Hospital of Philadelphia Research Institute will enable researchers to investigate a novel approach in treating HIV infection---a unique class of drugs focused on developing therapies for psychological and neurological effects in AIDS.
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