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Reports of tuberculosis (TB) cases with severe patterns of drug resistance are increasing,Keanu Neal Falcons Jersey, said experts who attended a World Health Organization (WHO) meeting in Geneva on 21-22 March.Participants stressed that the emergence of drug-resistant TB should be a wake-up call for Ministries of Health. The group urged the global community to make greater efforts to prevent drug resistance and scale up provision of appropriate care and management to avoid a scenario where TB becomes incurable.The meeting concluded that there is currently insufficient evidence to adopt new case definitions for drug-resistant TB. Drug susceptibility testing (DST),LeGarrette Blount Patriots Jersey, which is key to defining new levels of drug resistance,Tyson Jackson Falcons Jersey, lacks accuracy for several of the drugs that are used to treat multi drug-resistant (MDR) and extensively drug resistant (XDR)-TB.Secondly,Ty Montgomery Packers Jersey, there is insufficient correlation of DST results with clinical response to treatment for several drugs currently used to treat XDR-TB. Thirdly, new drugs are currently undergoing clinical trials,Morgan Burnett Packers Jersey, and could prove effective against drug resistant strains. The meeting urged diagnostics companies and TB laboratories to develop better diagnostic tests and also agreed that WHO and technical partners should develop more detailed guidance on XDR-TB treatment.Prior to results from randomized controlled trials,Drew Bledsoe Patriots Jersey, which are not expected for at least four years,Jack Lambert Steelers Jersey, participants called on WHO to lead a process with partners to improve the quality and quantity of observational data on the management of cases of severe forms of drug resistance. These data should be collected in a standardized manner which is essential for stronger future policy decisions on the management of drug-resistant TB.Several new drugs belonging to new classes of anti-mycobacterial agents are under development for treating TB, but until they are shown to be effective in properly conducted clinical trials,Jared Cook Packers Jersey, WHO cannot include them in recommendations for treatment regimens. WHO is therefore leading a process to accelerate their introduction into clinical settings. The meeting also advised pharmaceutical companies to collaborate in the early development of combination regimens.In 2010,Austin Hooper Falcons Jersey, only 20 out of 36 countries with a high burden of TB or MDR-TB had at least one laboratory capable of performing TB culture and DST per 5 million people. Much of Africa and the Indian subcontinent remain poorly served |
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