Development Of New Antituberculosis Drugs Pdf Download

development-of-new-antituberculosis-drugs
Author: W. W. Yew
Publisher: Nova Publishers
ISBN: 9781594548574
Size: 42.56 MB
Format: PDF, Docs
View: 2457

Development Of New Antituberculosis Drugs

In the global war to control tuberculosis (TB), there are several critical battles which must be waged and won if we are to make significant progress. Broadly speaking, these battlefields may be regarded as diagnosis, treatment and prevention. Within the arena of treatment are various critical elements. Current drug regimens require 6 months to achieve predictable cures; it is essential that shorter regimens be developed to lessen non-adherence and to improve affordability. To facilitate directly-observed therapy, intermittent (less than daily) regimens have been employed. To ensure favourable outcomes, including patients with AIDS, thrice-weekly regimens are the current standard; reducing the frequency of dosing to twice- or once-weekly may offer significant advantages. Drug resistance to the current major medications, the rifamycins and isoniazid, threatens to make tuberculosis untreatable for rising numbers of patients in many regions of the world. Finding new, effective agents is essential to ensure cures for these cases and to halt transmission of multidrug-resistant tuberculosis to others. anti-tuberculosis regimens and developing regimens that can be given simultaneously with anti-retroviral therapy without deleterious drug-drug interactions or unacceptable toxicity. Finally, attention must be directed to the potential utility of treating latent infection to prevent the evolution of active disease. The current vaccine Bacille Calmette-Guerin (BCG), while protecting infants and children against potentially lethal forms of TB, has done little to control the incidence of communicable adult pulmonary disease. Research is underway to develop improved vaccines, but due to the prolonged period to determine the efficacy of a TB vaccine (a minimum of 10 to 20 years) - alternative strategies must be pursued. Furthermore, the utility of a traditional vaccine would be sorely limited by the fact that roughly two billion persons today harbour latent tuberculosis infection. This huge reservoir of future disease would not be eligible for a traditional pre-infection vaccine. risk of tuberculosis by about 70 per cent in large, randomised placebo-controlled clinical trials. However, this strategy is limited by the requirement for extended duration of treatment (6 to 9 months), the risks of drug-induced hepatitis and rising rates of resistance to isoniazid in many regions of the world where the TB epidemic is most intense. Alternative means for the treatment of latent tuberculosis infection should be given high priority. The authors have assembled an outstanding panel of contributors to address these issues. The topics herein have great relevance both in the industrialised nations where contemporary medications and strategies appear to have exacted their maximum benefits and for the developing nations where this ancient scourge remains rampant. This book will provide an impetus for authorities and organisations devoted to the development of new drugs to address the aforementioned growing problems of TB world-wide.

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