NAPWA

According to the Canadian Observational CohortIn epidemiologyThe branch of medical science that deals with the study of incidence and distribution and control of a disease in a population., a group of individuals with some characteristics in common. A cohort study is a special kind of clinical trialA clinical trial is a research study to answer specific questions about vaccines or new therapies or new ways of using known treatments. Clinical trials are used to determine whether new drugs or treatments are both safe and effective. Carefully conducted clinical trials are the fastest and safest way to find treatments that work in people. Trials are in four phases: Phase I tests a new drug or treatment in a small group; Phase II expands the study to a larger group of people; Phase III expands the study to an even larger group of people; and Phase IV takes place after the drug or treatment has been licensed and marketed. which looks at a treatment or treatment strategy in a cohort of people. collaboration, abacavir (ABC) or tenofovir (TDF) are equally effective in first-line treatment.

The authors found that in their group of treatment-naive patients starting treatment, there was no difference in time to suppression with ABC/3TC (Kivexa) versus TDF/FTC (Truvada). read more »

A new, once-daily, lower dose of the protease inhibitorA type of anti-HIV drug that works by preventing the production of an enzyme, protease, that HIV needs to replicate. darunavir (Prezista) is available on the PBS[Pharmaceutical Benefits Scheme[Pharmaceutical Benefits Scheme] The federal government program which subsidises medication costs in Australia. Anti-HIV drugs are part of a special part of the PBS called Section 100 (S100) which is used for expensive, highly specialised drugs.] The federal government program which subsidises medication costs in Australia. Anti-HIV drugs are part of a special part of the PBS called Section 100 (S100) which is used for expensive, highly specialised drugs. from 1 December.

To date, the recommended dose has been 600mg taken twice-a-day along with 100mg of ritonavir. But this new daily dose is just 800mg boosted with a single dose of ritonavir.

The lower dosage of both drugs appears to have a much better side effectAn unwanted effect caused by the administration of drugs. Onset may be sudden or develop over time. profile. read more »

Dr Mark Bloch from Holdsworth House in Sydney presented the 48-week results of the combined ECHO and THRIVE studies which determined that the new NNRTI rilpivirine (RPV) is as effective as efavirenz (EFV) for first-line treatment.

Everyone in the studies received a nucleoside backbone to their treatment – in ECHO it was Truvada, in THRIVE it was tenfovir/3TC or abacavir/3TC. read more »

Adrian Ogier gives the low-down on latest antiretroviralA medication or other substance which is active against retroviruses such as HIV. treatments. read more »

Compared to abacavir, tenofovir does increase bone mineral density (BMD) loss but not fracture risk, according to the results from the STEAL trial reported at the IAS Conference in Rome. read more »

Neuropsychiatric side effects are a common problem for people on efavirenz (EFV), but a study reported last year reveals just how common they are, and how long they last.

The SENSE trial was designed to evaluate whether 12 weeks of treatment with once-daily etravirine (ETR) plus 2NRTIs would lead to fewer neuropsychiatric adverse events than treatment with efavirenz plus 2NRTIs. read more »

The 6th IAS Conference on HIV Pathogenesis, Treatment and Prevention was held in Rome last week from 17-20 July. This meeting is held every two years and alternates with the much larger World AIDS Conferences also organised by the International AIDS Society (IAS). read more »

A Canadian study has associated abacavir, efavirenz, lopinavir and ritonavir with an increased risk of heart attackA life-threatening emergency in which the blood supply to the heart is suddenly cut off, causing the heart muscle (myocardium) to die from lack of oxygen.. The research also showed that patients with HIV had twice the risk of heart attack compared to matched HIV
negative controls. read more »

It appears that the antiretroviralA medication or other substance which is active against retroviruses such as HIV. NRTIA type of anti-HIV drug that works by inhibiting a stage of the HIV life cycle called reverse transcription. Non-nucleosides work in a similar way, but are chemically different. tenofovir (found in Viread, Truvada and Atripla) may also have a calming effect on the immune system and provide protection against infections other than HIV. Laboratory tests have found that tenofovir offered two types of protection. First, it suppressed the production of inflammatory messengers, such as Interleukin-8 (IL-8). read more »

The Conference on Retroviruses and Opportunistic Infections reports important advances in HIV treatments and clinicalPertaining to or founded on observation and treatment of participants, as distinguished from theoretical or basic science. care. The 18th CROI was held in Boston in March. Neil McKellar-Stewart highlights some of the good bits. read more »