New Kind of Drug Could Increase Number Who Quit Smoking
Quit smoking long term
Smokers who try to quit using existing medications, such as nicotine patches or Zyban, are about twice as likely to succeed as those who don't use medication or are prescribed placebos during clinical trials. But despite the relative effectiveness of medications currently on the market, more than 80 per cent of quitters will be smoking again within a year, according to a review in the latest IJCP, the UK-based International Journal of Clinical Practice.
A new kind of drug has now been developed that could improve long-term quit rates, according to Dr Jonathan Foulds from the Tobacco Dependence Program at the University of Medicine and Dentistry of New Jersey.
Varenicline is being evaluated by the US Food and Drug Administration under a six-month priority review which began in late 2005.
"Trials carried out so far have yielded promising results, suggesting that varenicline could be a major advance in the treatment of nicotine dependence" says Dr Foulds.
"Drugs are normally earmarked for priority review by the FDA if they are felt to address health needs that are not currently being adequately met.
"What makes varenicline different to existing medication is that it is the first treatment specifically designed to target the neurobiological mechanism of nicotine dependence."
Initial results show that the drug successfully stimulates dopamine