Novartis announces exclusive option, collaboration and license agreement with Conatus to develop new oral treatments for chronic liver diseases

NovartisNovartis announced today the signing of an exclusive option, collaboration and license agreement with Conatus Pharmaceuticals Inc., a biotechnology company focused on the development of novel medicines to treat liver disease. This agreement will enable Novartis and Conatus to jointly develop emricasan. Emricasan is an investigational, first-in-class, oral, pan-caspase inhibitor for the treatment of non-alcoholic steatohepatitis (NASH) with advanced fibrosis (scarring) and cirrhosis. This collaboration has the potential to expand treatment options for people in various stages of fatty liver disease, where no approved medicines currently exist.

Under the terms of this agreement, Novartis will make an upfront payment to Conatus of USD 50 million. Any additional exercise fee will be paid to Conatus following achievement of certain criteria as defined in the option, collaboration and license agreement, including required anti-trust approvals.

"Our collaboration with Conatus is a major step forward to delivering innovative oral treatments for NASH patients, who are in urgent need of new approved options," said Vasant Narasimhan, Global Head, Drug Development and Chief Medical Officer, Novartis. "Emricasan shows great promise as a single agent and in potential combination with our internal FXR agonists as a treatment for NASH patients."

Novartis is developing Farnesoid X receptor (FXR) agonists for the treatment of chronic liver diseases. As part of this collaboration, Conatus will conduct multiple Phase 2b clinical trials with emricasan in NASH. If concluded positively, Novartis would then conduct Phase 3 studies of emricasan as a single treatment and start development of combination therapies with an FXR agonist.

FXR agonists have been shown to address three of the most important aspects of NASH progression by reducing fat, inflammation and fibrosis in the liver. The most advanced Novartis investigational compound, a potent, non-bile acid FXR agonist, has recently received Fast Track designation from the US Food and Drug Administration (FDA) for NASH with liver fibrosis and is in a Phase 2 clinical trial.

NASH is a common, often silent liver disease; the major feature of which is fat in the liver, along with inflammation and scarring. Around 3-5% of the US population is affected with NASH[2], which is set to become the leading cause of liver transplants in the US by 2020[1].

About emricasan
Emricasan is a first-in-class, oral, pan-caspase inhibitor for the treatment of NASH fibrosis and cirrhosis. To date, emricasan has been studied in over 650 patients in sixteen clinical trials across a broad range of liver diseases. In multiple clinical Phase 2 trials conducted by Conatus, emricasan has demonstrated significant, rapid and sustained reductions in elevated levels of key biomarkers of inflammation and cell death, which play a role in the severity and progression of liver disease. The FDA has granted Fast Track designation for the development of emricasan in patients with NASH cirrhosis.

About Novartis FXR agonists
Novartis scientists began to develop leads for the FXR agonism program in 2007. Through this effort, several non-bile acid FXR agonists have been identified and pre-clinical data demonstrates that these compounds are very selective with differentiated biological profiles. First-in-human studies have continued to support their differentiated profiles and their potential for further development. Two Novartis FXR agonists are now in worldwide clinical studies in NASH patients.

About Non-Alcoholic Steatohepatitis (NASH)
NASH is a chronic, progressive form of non-alcoholic fatty liver disease and it is estimated to affect 3% to 5% of the US population alone[2]. As fat builds up in the liver, it triggers a vicious cycle of chronic inflammation and liver scarring called fibrosis. Over time, liver inflammation and fibrosis may progress to cirrhosis, which can lead to liver failure and, barring a transplant, death. NASH is expected to be the principal cause of liver transplantation in the US by 2020[1]. Currently, there are no approved treatment options for people living with the varying stages of NASH.

About Novartis
Novartis provides innovative healthcare solutions that address the evolving needs of patients and societies. Headquartered in Basel, Switzerland, Novartis offers a diversified portfolio to best meet these needs: innovative medicines, eye care and cost-saving generic pharmaceuticals. Novartis is the only global company with leading positions in these areas. In 2015, the Group achieved net sales of USD 49.4 billion, while R&D throughout the Group amounted to approximately USD 8.9 billion (USD 8.7 billion excluding impairment and amortization charges). Novartis Group companies employ approximately 118,000 full-time-equivalent associates. Novartis products are available in more than 180 countries around the world.

1. Charlton MR, Burns JM, Pedersen RA, Watt KD, Heimbach JK, Dierkhising RA. Frequency and Outcomes of Liver Transplantation for Nonalcoholic Steatohepatitis in the United States. Gastroenterology; 2011:141 (4):e22-e23.
2. Vernon G, Baranova A, Younossi ZM. Systematic review: the epidemiology and natural history of non-alcoholic fatty liver disease and non-alcoholic steatohepatitis in adults. Aliment Pharmacol Ther. 2011;34(3):274-85.

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