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Sangamo BioSciences announced yesterday that it is initiating two Phase 2 clinical trials of its gene therapy treatments for people with HIV. The trials will test two different strategies for increasing the effectiveness of the therapy, with the goal of creating a cure for HIV.

“We are delighted to be able to open these two important clinical studies ahead of schedule,” said Geoff Nichol, executive vice president of research and development at Sangamo, in a press release.

Both trials are testing gene therapy approaches to curing HIV. In the field…

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Norvir Prescribing Information Updated To Include Risk Of Life-Threatening Skin Condition – The U.S. Food and Drug Administration (FDA) has approved updated prescribing information for Norvir (ritonavir) to warn of the possibility of toxic epidermal necrolysis, a rare, life-threatening reaction to medications in which the top layer of skin detaches from the bottom layer and dies. The new prescribing information also notes that when Norvir is taken with the cancer drugs Tasigna (nilotinib) or Sprycel (dasatinib), used to treat certain forms of leukemia, or the painkiller fentanyl (Duragesic, Actiq), dose adjustments of these drugs may be necessary. For more information, please see the FDA press release.

Gilead Sciences And Janssen Therapeutics Agree To Lower AIDS Drug Prices For ADAPs – Gilead Sciences and Janssen Therapeutics (a division of Johnson & Johnson) have reached agreements with the ADAP Crisis Task Force (ACTF) to further reduce the prices for antiretrovirals purchased by state AIDS Drug Assistance Programs (ADAPs), which provide free antiretrovirals to low-income people with HIV. Due to state budget crises and an increase in the number of people requesting assistance, many states have tightened eligibility requirements or implemented waiting lists for ADAPs. According to ACTF, there were 6,595 people on ADAP waiting lists nationwide as of November 17. For more information, please see the press releases from ACTF (pdf) and the AIDS Healthcare Foundation.

GeoVax Begins Phase 1/2 Trial Of Therapeutic AIDS Vaccine; Still Recruiting Participants – Biotechnology company GeoVax Labs announced today that the first patient has received a dose of its investigational therapeutic HIV vaccine as part of a Phase 1/2 trial. The company is testing the safety and efficacy of the vaccine in controlling HIV replication in people already infected with the virus; participants will stop taking antiretrovirals for 12 weeks as part of the trial. The company also noted that it is still recruiting participants for the trial. Eligible participants must be HIV-positive and have started antiretrovirals within 18 months of their last negative HIV test; or have had a negative HIV test within the past 18 months and not yet started antiretrovirals. For more information, please see the GeoVax press release (pdf) or the U.S. Clinical Trials Registry.

Governors Push For Legalization Of Medical Marijuana – The governors of Rhode Island and Washington states have petitioned the federal government to legalize use of marijuana for medicinal purposes. Both states have legalized medical marijuana, and the governors argue that the change in federal law is necessary so that state employees are not prosecuted for distributing the drug. The U.S. Justice Department had previously sent letters to state governments warning of prosecution if they continued to distribute medical marijuana (see related AIDS Beacon news). The federal Drug Enforcement Agency rejected a request to reclassify the drug as acceptable for medicinal use in June; however, the governors argued that the evidence used for that rejection is several years old and that the medical community has since changed its stance on marijuana. For more information, please see the article in the New York Times.

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Updated results from a 96-week Phase 3 clinical trial continue to indicate that the investigational integrase inhibitor elvitegravir is as effective and safe as Isentress in previously treated people with HIV.

“These positive two-year data indicate that elvitegravir has the potential to be an important new once-daily treatment option for people living with HIV who have developed resistance to other therapies,” said Norbert Bischofberger, executive vice president of Research and Development and chief scientific officer of Gilead Sciences, which is developing elvitegravir, in a press release.

“In addition, we are…

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Isentress Prescribing Information Updated To Warn Of Severe Rash – The U.S. Food and Drug Administration (FDA) recently announced that the prescribing information for Isentress (raltegravir) has been updated to include a warning about the risk of a severe, potentially life-threatening rash. According to the FDA, patients taking Isentress should immediately contact their physician if they develop a rash. Physicians should advise patients to immediately stop taking Isentress if they develop a rash and have one or more of the following symptoms: fever, a general feeling of illness, extreme tiredness, muscle or joint aches, blisters, mouth lesions, eye inflammation, facial swelling or swelling of the eyes, lips, or mouth, breathing difficulties, or signs of liver problems (such as yellowing of the skin or eyes or pain under the ribs). For more information, please see the FDA press release.

AIDS Patients Sue Ohio Department Of Health Over New ADAP Regulations – Three HIV-positive patients and advocates have sued the Ohio Department of Health over new restrictions to the state’s AIDS Drug Assistance Program (ADAP), which provides free antiretrovirals to low-income people with HIV. According to the lawsuit, Department of Health officials failed to follow state laws on adopting new regulations, making them illegal. The plaintiffs also argue that the regulations would arbitrarily deny treatment to people with HIV. The new regulations would allow the Department to tighten restrictions on patient income for ADAP eligibility; they also include medical guidelines to determine waitlist priority if a waitlist is needed. A judge granted an injunction last week delaying implementation of the new regulations until the lawsuit has been resolved. For more information, please see the article on the New England Cable News website or the AIDS Healthcare Foundation press release.

Vertex Pharmaceuticals To Initiate Phase 3 Trial Of 12-Week Hepatitis C Regimen – Vertex Pharmaceuticals, the developer of Incivek (telaprevir), announced last week that it will initiate a Phase 3 trial of a 12-week hepatitis C treatment regimen consisting of Incivek, peginterferon-alfa, ribavirin, and its investigational hepatitis C virus polymerase inhibitor VX-222. The trial will test the regimen in both previously untreated and relapsed hepatitis C patients. The announcement of the new trial is based on results from a Phase 2 clinical trial that showed that 93 percent of patients treated with the four-drug regimen were cured of hepatitis C after 12 weeks. For more information, please see the Vertex Pharmaceuticals press release.

Bristol-Myers Squibb Investigates 12-Week, Interferon-Free Hepatitis C Treatment Regimen – Bristol-Myers Squibb is also independently investigating a 12-week, interferon-free treatment regimen for the treatment of hepatitis C. Bristol-Myers Squibb announced that it is adding the new 12-week treatment protocol to an existing Phase 2 clinical trial that is testing the same regimen as a 24-week treatment program. Patients will receive the investigational polymerase inhibitor PSI-7977 (developed by Pharmasett) plus Bristol-Myers Squibb’s investigational NS5A replication complex inhibitor daclatasvir (BMS-790052). Some patients will also receive ribavirin. The trial will test the regimens in both previously untreated patients and patients who have failed treatment with Incivek or Victrelis. For more information, please see the Bristol-Myers Squibb press release.

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Interim results from a Phase 2 clinical trial show that 74 percent of HIV-positive participants taking Incivek, in combination with peginterferon-alfa and ribavirin, had undetectable hepatitis C virus levels after 24 weeks of treatment, compared to 55 percent of participants taking peginterferon-alfa and ribavirin alone.

The response rate is similar to that reported last month for Victrelis (boceprevir) in a Phase 2 clinical trial in people with HIV (see related AIDS Beacon news).

“As HIV treatments have improved, liver disease associated with hepatitis C has become a…