• Marta Rodríguez-Arias, María A Aguilar, and José Miñarro.
• a Universidad de Valencia, Unidad de Investigación Psicobiología de las Drogodependencias, Departamento de Psicobiologia , Avda. Blasco Ibáñez 21, 46010 Valencia, Spain +34 9 63 86 40 20 ; +34 9 63 86 46 68 ; jose.minarro@uv.es.
• Expert Opin Investig Drugs. 2015 Jan 1; 24 (11): 1459-72.

IntroductionOpiate drugs are psychoactive substances used to manage severe pain. However, their chronic use is associated with the development of addiction. Opiate addiction represents a significant public health concern.Areas CoveredThis review focuses on the most recent advances in the pharmacological treatment of opiate addiction, from those being tested in clinical trials (Phase I and II), to preclinical studies that point to new targets. Readers will gain knowledge of the wide variety of treatments used to treat opiate addiction, including their strengths and weaknesses, and the promising pharmacological targets identified by preclinical research.Expert OpinionAmong the currently available agonist therapies, new dosage forms of buprenorphine can increase patient acceptability and compliance. New extended-release forms of naltrexone are building hope of retaining opiate-dependent subjects in a drug-free state. Unfortunately, the review of the literature shows that successful preclinical studies are often followed by discouraging results in human clinical trials. Nevertheless, all targets of potential interest should be tested exhaustively. Indeed, a number of new targets and research lines (genetics and neuroinflammation approaches) may lead to breakthroughs in the future.

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