Banned serological tests being replaced by IGRAs

Treatment Action Group (TAG) and members of the Global TB Community Advisory Board (TB CAB) as well as civil society in India have expressed concern on reports citing blood-based interferon gamma release assays (IGRAs) being used to detect active tuberculosis

igra-test

IGRAs as an alternative: Easy way to make quick bucks!

Following a negative policy by the World Health Organization about serodiagnostic antibody based tests, the Indian government banned their usage for tuberculosis (TB) in 2012.

However, more recently few reports have emerged revealing that blood-based interferon gamma release assays (IGRAs) are being used to detect active tuberculosis (TB) disease in the private sector, where serology
use was rampant. Taking serious view on that, the Treatment Action Group (TAG) and members of the Global TB Community Advisory Board (TB CAB) as well as civil society in India have expressed concerns.

The group in its letter addressed to Mr Manoj Monga, director, Immunoshop India, has pointed out towards the company's product, 'Immucheck TB Platinum' being used as an alternative to the banned serological tests for active TB in India and high TB burden countries.

Also referring to its earlier letter written to Qiagen, TAG mentioned about the void created by the serologicals ban and that being filled with tests such as TB Gold  from Qiagen.

"We are concerned that your test, which is indicated only for latent TB infection (LTBI) detection, is being or will be used in an off-label manner, and are worried about the implications for individuals with suspected TB in India. In fact, your advertisement (http://immunoshop.in/news/immucheck-tb-platinum-igra/) explicitly markets your
product as: "Immucheck TB Platinum - The IGRA test method will be a boon for detection of active TB and LTBI and thus for containment of its transmission!!!!!" This is clearly not consistent with the WHO policy that discourages use of IGRAs for active TB diagnosis in low and middle income countries, and is also not in line with the Indian Revised National TB Control Programme (RNTCP)'s advertisements(published in several newspapers) which discourage use of IGRAs for diagnosing TB disease in India, said the TAG.

 

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