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Injectable HIV drug to offer effective therapy, say scientists

In Paris, France

A revolution in HIV could see the daily oral pills replaced with injectable drug given six times a year, scientists have revealed.

The first two long acting injectable formulation of HIV medicines could offer a highly effective therapy if approved.

The injection which is supposed to slowly and continuously release HIV medication into the blood of the patient is on Phase II trial.

The medication is expected to reduce pill burden and providing convenience for people living with HIV once approved.

RESISTANCE

Many people struggle to swallow the drugs daily and in many cases resulted to a comeback and resistance.

The results were presented on Tuesday at the International Aids Society Conference on HIV Science in Paris, France.

“As research into new medicines for HIV progresses, adherence to therapy continues to be essential to achieving viral suppression and reducing the emergence of resistance mutations,” Dr David Margolis, a researcher from ViiV Healthcare, said.

“The primary end point evaluated antiviral activity and safety through 32 weeks of maintenance treatment and the study will continue up to 104 weeks of treatment,” said Dr Margolis.

SUPRESSION

There was 94 per cent viral suppression on patients who were placed on two drug regime dosed every eight weeks. The four weeks reported 87 per cent as compared to 84 per cent in patients who were on oral regime.

“Neither of the patients had evidence of resistance at failure, injection site pain was the most commonly reported injection site reaction.

Side effects – including diarrhoea and headache – were similar in all groups,” he said.

“ This study results was important since we now have data showing the durability and tolerability of long acting viral suppression for a two drug regime out of 96 weeks,” said Dr John Pottage, Chief scientist at ViiV health care and co-author of the study.

ANTIBODIES

Another study has concluded that introduction of antibodies in infected people may delay the rebound of the HIV load in the body especially after interruption from antiretroviral therapy.

The study known as RV397 sought to find treatments that could suppress the viral loads without the need for lifelong ART.

Scientists randomly trialed the effect of VRCO1 antibodies in a controlled demonstration to determine the viral changes in people infected with HIV and who have been on ARTs respond.

VRCO1 is a broadly neutralising antibody that inhibits multiple strains of HIV.

“This is the first time that the VRCO1 antibody has been evaluated in people who started anti-HIV drugs during acute HIV infection,” said Dr Trevor Crowell, the research physician who presented the study.

The child was diagnosed at one-month-old and put on anti-HIV treatment.

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