In India, the drug Nexavar is patented (Indian
patent #: 215758; available at our patent office website) by Bayer Inc.,
USA. NATCO filed the application under section 84(1). The patent in India claims priority to PCT
application number PCT/US00/00648
and has a priority date of 01/13/1999. Interestingly,
the PCT site for this application under the ‘National Phase’ tab shows that
Korea has in one family member of this patent refused to grant a patent.
At the same time, two other family members also exist and one of which
is published and the other granted.
The Indian CL application: NATCO’s CL application starts by stating its
capability, experience and expertise in manufacturing and development of
anti-cancer drugs. The CL application
then describes that the patent 215758 covers an active ingredient ‘Sorafenib’. Bayer manufactures Sorafenib under the brand
Nexavar and that Nexavar is used to treat primary kidney and advanced primary
liver cancer. The Nexavar cost of therapy
is stated to be Rs. 280428.00 per month. The CL application then details facts
about Hepatocellular Carcinoma (stats related to occurrence and survival rate);
and facts related to renal cell carcinoma.
There are at least 100000 patients in India suffering from different
forms of renal cell and hepatic cell carcinoma and 30000 patients are added to
the patient pool every year. Over 24000
patients die in India every year on account of these diseases. Various treatment options are then described
including the treatment by Sorafenib.
Physicians prescribe Sorafenib @800mg per day which translates to 4
tablets per day (400mg tabletsX2) at a cost of Rs. 280428.00 per month and that
the patient has to pay the entire amount from his pocket.
NATCO then argues that Sorafenib had a limited
availability in India as it was entirely imported and it was only available in
major cities (Delhi, Mumbai, Kolkata, Chennai) at pharmacies attached to large
hospitals. The distributors of Sorafenib
were in Delhi, UP, Punjab, Gujarat, West Bengal, Bihar, Kerala and Tamil Nadu
to the exclusion of all other states and territories. The
applicant specifically stated that Sorafenib reaches less than 1% of the patients
and that 99% of the patients who are unable to afford the drug are left to die (because
of the non-availability). NATCO has also
stated in the application that the drug is considered to be expensive even by
US ($4300/month) and UK
(GBP2900) standards.
The application then stated that the requirements
of section 84 had been met: More than 3 years have elapsed since the grant of
the patent (03/03/2008) and yet Bayer had not taken adequate steps to manufacture
the invention in India; and that a prima facie case of reasonable requirements
of the public not being met is made because of unavailability (access and
price).
The application concludes by stating that NATCO
has existing capability to manufacture Sorafenib; NATCO has approval from Drug
Controller General of India for manufacturing and marketing Sorafenib; efforts
to secure a voluntary license had failed; and NATCO also had a patent on the
process of manufacturing Sorafenib.
NATCO’s stated capability is 2Million tablets a day whereas there was a
requirement of 480K/month and that NATCO could supply the tablet @Rs.74/tablet working out to
Rs.8800.00/month and that NATCO was willing to provide the tablet free of cost
to patients who could not even afford the proposed price (74/tablet). NATCO
has also specifically stated that in case a CL is granted, it would not export
Sorafenib to other countries and that the CL would be limited to India.
Conclusion: In my opinion, this is a textbook case for grant
of a CL. But that said it also reasons that Bayer may itself reduce the prices
of Nexavar rendering the issue of nonavailability moot. It may even grant a
license to another generic manufacturer in India to produce Sorafenib thereby
addressing the concerns in NATCO's CL application.

2 comments:
Dear Rajiv,
I would like to correct you the priority date of this application is Jan 13th 1999 instead of Jan 12th 2000.
Actually Jan 12th 2000 is filing date of PCT application.
Asved
Anonymous@1:53: Thank you for pointing out the error and I have updated it to the correct priority date.
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