Hot COVID-19
Home > News > Athenex Announces Additional Licensing Agreements for Tirbanibulin
Industry Updates New Products Supplier News Upcoming Events business web

Athenex Announces Additional Licensing Agreements for Tirbanibulin

Hits:70   Date: 7/27/2021
Athenex expands its international commercial partnerships for tirbanibulin in Australia, New Zealand and Canada
BUFFALO, N.Y., July 26, 2021 (GLOBE NEWSWIRE) -- Athenex, Inc., (NASDAQ: ATNX), a global biopharmaceutical company dedicated to the discovery, development, and commercialization of novel therapies for the treatment of cancer and related conditions, announced today that the Company has entered into licensing agreements and strategic partnerships with Seqirus Pty Ltd (“Seqirus”), a subsidiary of CSL Limited, and AVIR Pharma Inc. (“AVIR”) for tirbanibulin.

Under the terms of the agreements, Seqirus will have an exclusive license to commercialize tirbanibulin in Australia and New Zealand, and AVIR will have an exclusive license to commercialize tirbanibulin in Canada.
The addition of these territories enhances the global coverage of the marketing and sales of Klisyri® (tirbanibulin ointment) for the treatment of actinic keratosis (AK). Athenex currently has strategic partnerships for tirbanibulin in the U.S., Europe, China, Taiwan, Japan and now also Australia, New Zealand and Canada, among several other territories. In addition to upfront payments and milestone payments, the royalty/transfer prices generally range from 15% to 30% of annual sales across different territories.
“These new partnerships with Seqirus and AVIR will expand tirbanibulin access to more patients around the world,” said Dr. Johnson Lau, Chairman and Chief Executive Officer of Athenex. “Tirbanibulin, or Klisyri®, is approved and launched in the United States for the treatment of actinic keratosis of the face or scalp, and is a significant step forward because of its short treatment protocol, proven efficacy, and favorable safety profile. Klisyri has recently also received approval for marketing by the European Commission. The expansion of our international partnerships represents an important step in Athenex’s strategy to optimize the potential value of this important drug and create value for our stakeholders.”

Tirbanibulin is a novel, topical first-in-class microtubule inhibitor with a selective antiproliferative mechanism of action. Athenex received approval from the U.S. Food and Drug Administration for the commercialization of tirbanibulin, under the brand name Klisyri®, for the topical treatment of AK of the face or scalp. Klisyri was launched in the U.S. in February 2021, led by the Company’s partner, Almirall. In July, Almirall received European Commission approval of Klisyri (tirbanibulin) for the topical treatment of AK of the face or scalp, which followed a positive opinion from the Committee for Medicinal Products for Human Use of the European Medicines Agency in May.
“We are delighted to collaborate with Athenex to commercialize KlisyriTM in Australia and New Zealand,” said Dani Dowell, Seqirus Head of Commercial Australia and New Zealand. “This is an exciting opportunity, building on Seqirus’ strong presence as a successful in-license partner in Australia and New Zealand. The addition of Klisyri will broaden our portfolio and is another example of our work to deliver innovative offerings to meet unmet patient need.”
Actinic keratosis is one of the most common diagnoses in dermatology practices.[1] Australia has one of the highest prevalence of AK, with an estimated prevalence of 40-50% in the Australian Caucasian population over 40 years of age.[2] Treatment is a critical aspect in the management of the disease as it may progress to invasive skin squamous cell carcinoma.
About Athenex, Inc.
Founded in 2003, Athenex, Inc. is a global clinical stage biopharmaceutical company dedicated to becoming a leader in the discovery, development, and commercialization of next generation drugs for the treatment of cancer. Athenex is organized around three platforms, including an Oncology Innovation Platform, a Commercial Platform, and a Global Supply Chain Platform. The Company’s current clinical pipeline is derived from four different technologies: (1) Orascovery, based on P-glycoprotein inhibitor, (2) Src kinase inhibition, (3) Cell therapy, and (4) Arginine deprivation therapy. Athenex’s employees worldwide are dedicated to improving the lives of cancer patients by creating more active and tolerable treatments. For more information, please visit
About Seqirus Pty Ltd
In Australia and New Zealand, Seqirus is a fully integrated pharmaceutical company operating with expertise in specialty and primary care pharmaceuticals and vaccines. Globally, Seqirus is the world’s largest influenza vaccine manufacturer. With extensive research and production expertise and manufacturing plants in the US, UK and Australia, Seqirus is a transcontinental partner in pandemic preparedness and a major contributor to the prevention of control of influenza globally. Seqirus has a workforce of over 3000 employees and a presence in 20 countries.
About AVIR Pharma Inc.
Avir Pharma Inc. is a wholly-owned, privately-held Canadian pharmaceutical company whose mission is to enhance the lives of Canadians through the acquisition, in-licensing and co-development of innovative, specialty pharmaceutical products. AVIR specializes in anti-infectives, gastroenterology, dermatology and pain management. Located in Blainville, Quebec, Avir Pharma Inc. is an affiliate of the Laboratoire Riva Group, an established company with over 40 years of experience in manufacturing, distributing and promoting pharmaceutical products in the Canadian marketplace. For more information, please visit the company’s web site at

Athenex Contacts
Daniel Lang, MD
Athenex, Inc.
Tim McCarthy
LifeSci Advisors, LLC