• As Chief Commercial Officer Simon Jose will join the Idorsia Executive Committee
• Simon's first priority will be to establish a commercial organization

Allschwil, Switzerland -  October 23, 2018
Idorsia Ltd (SIX: IDIA) today announced that Simon Jose will join the company as Chief Commercial Officer on December 1, 2018. Mr. Jose will also be a member of the Idorsia Executive Committee.

Jean-Paul Clozel, M.D. and Chief Executive Officer of Idorsia commented:
"I am very pleased and honored that Simon Jose has joined the team at Idorsia. Simon will be key to realizing the full potential of our assets and making strategic decisions on how to commercialize them. Simon brings a wealth of experience and broad expertise covering the General Practitioner market as well as specialty care. He also brings the necessary understanding of the US environment. I look forward to working with Simon as he creates and builds our commercial organization to deliver our innovative therapies to patients."

Simon Jose commented:
"I was attracted to Idorsia by the quality and breadth of the pipeline. It has great potential across a number of different medical settings, which from a commercial perspective, is incredibly exciting and challenging. As I have learned more about Idorsia and the people working there, it is clear that the pipeline is borne from a focus on quality science and a commitment to patients, two attributes which personally drive me. I have been struck by the enthusiasm and passion I have experienced at Idorsia and relish the opportunity to build a successful commercial organization from the ground up."

About Simon Jose
Simon Jose is a British national with over 30 years of experience in the pharmaceutical industry, including 7 years in the US. In that time, he has held various commercial roles of growing responsibility, gaining experience in sales, managing and launching multi-billion dollar products, developing global strategies, and working with R&D to develop competitive pipelines. In 2008, Simon was appointed as General Manager of GSK's home market in the UK. In 2012, Simon was appointed President of Stiefel, a global specialty dermatology company recently acquired by GSK. In this role Simon led the Global Executive Team, managing an organization of 3'000 people, through a period of significant change. From 2015 and immediately prior to Idorsia, Simon was the Senior Vice President, Head Global Franchises & Platforms at GSK where he led combined commercial and medical teams for Respiratory, Immuno-Inflammation, Oncology, and Infectious Diseases.

About Idorsia
Idorsia Ltd is reaching out for more - We have more ideas, we see more opportunities and we want to help more patients. In order to achieve this, we will develop Idorsia into one of Europe's leading biopharmaceutical companies, with a strong scientific core.

Headquartered in Switzerland - a biotech-hub of Europe - Idorsia is specialized in the discovery and development of small molecules, to transform the horizon of therapeutic options. Idorsia has a broad portfolio of innovative drugs in the pipeline, an experienced team, a fully-functional research center, and a strong balance sheet - the ideal constellation to bringing R&D efforts to business success.

Idorsia was listed on the SIX Swiss Exchange (ticker symbol: IDIA) in June 2017 and has over 700 highly qualified specialists dedicated to realizing our ambitious targets.

For further information, please contact
Andrew C. Weiss
Senior Vice President, Head of Investor Relations & Corporate Communications
Idorsia Pharmaceuticals Ltd, Hegenheimermattweg 91, CH-4123 Allschwil
+41 (0) 58 844 10 10
www.idorsia.com

The above information contains certain "forward-looking statements", relating to the company's business, which can be identified by the use of forward-looking terminology such as "estimates", "believes", "expects", "may", "are expected to", "will", "will continue", "should", "would be", "seeks", "pending" or "anticipates" or similar expressions, or by discussions of strategy, plans or intentions. Such statements include descriptions of the company's investment and research and development programs and anticipated expenditures in connection therewith, descriptions of new products expected to be introduced by the company and anticipated customer demand for such products and products in the company's existing portfolio. Such statements reflect the current views of the company with respect to future events and are subject to certain risks, uncertainties and assumptions. Many factors could cause the actual results, performance or achievements of the company to be materially different from any future results, performances or achievements that may be expressed or implied by such forward-looking statements. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described herein as anticipated, believed, estimated or expected.