Press Release
Nippon Shinyaku Co., Ltd.
Eli Lilly Japan K.K.

March 25, 2024

Announcement of Alliance Agreement for Pirtobrutinib,a Reversible Non-Covalent BTK Inhibitor in Japan

Nippon Shinyaku Co., Ltd. (Nippon Shinyaku; Headquarters: Kyoto; President: Toru Nakai) and Eli Lilly
Japan K.K. (Eli Lilly Japan; Headquarters: Kobe; President and Representative Director: Simone Thomsen) announced today that we have entered into an alliance agreement in Japan for pirtobrutinib, which
Eli Lilly Japan is developing for the following indications: Mantle cell lymphoma (MCL) Chronic lymphocytic leukemia (CLL)
Based on this alliance agreement, in Japan, Eli Lilly Japan will be responsible for the supply of pirtobrutinib after obtaining the manufacturing and marketing approval, while Nippon Shinyaku will be responsiblefor distribution and sales, as well as information provision activities.
In signing the alliance agreement, as Nippon Shinyaku offers several hematological cancer drugs, it isexpected that the addition of pirtobrutinib to its lineup will expand the treatment options for MCL and CLL,and strengthen the hematologic oncology field. Eli Lilly Japan believes that by collaborating with Nippon
Shinyaku, which has experience in the field of hematological cancers, we will be able to contribute to thepromotion of the proper use of pirtobrutinib by reliably providing information to healthcare professionals,
and meet the unmet needs of more patients with MCL and CLL.
Nippon Shinyaku and Eli Lilly Japan will work closely together through the alliance agreement for pirtobrutinib to contribute to providing a new treatment option for patients with MCL and CLL in Japan.
About pirtobrutinib
Pirtobrutinib is a highly selective, non-covalent (reversible) inhibitor of the enzyme Bruton’s tyrosine kinase (BTK). BTK is a validated molecular target found across numerous B-cell leukemias and lymphomas
including mantle cell lymphoma (MCL) and chronic lymphocytic leukemia (CLL).1,2
About Mantle Cell Lymphoma
MCL is a rare blood cancer and a form of non-Hodgkin lymphoma. MCL arises in B lymphocytes, a typeof white blood cell. MCL frequently begins in B cells located in the mantle zone of the outer edge of lymphnodes. As the cancer progresses, it can spread to bone marrow, the spleen, the liver, or the digestive
tract.3 Annually, about one in 200,000 people worldwide develop MCL3.
About Chronic Lymphocytic Leukemia
CLL is a form of slow-growing B-cell leukemia4,5. In CLL, the cancer cells are present in the blood4.
About Nippon Shinyaku
Based on Nippon Shinyaku’s business philosophy, “Helping people lead healthier, happier lives,” we aim
to be an organization trusted by the community through creating unique medicines that will bring hope topatients and families suffering from illness. Please visit our website (https://www.nipponshinyaku.co.jp/english/) for products or detailed information.

1/2

About Eli Lilly Japan
Eli Lilly Japan K.K. is a subsidiary of US-based Eli Lilly and Company. It contributes to medical treatment
in Japan through the development, manufacture, import and sale of innovative pharmaceutical productsthat enable people to live longer, healthier, and more fulfilling lives, focusing on the therapeutic areas
such as cancer, diabetes, musculoskeletal diseases, central nervous system diseases, autoimmune diseases, growth disorder, and pain. For more information, visit our website: http://www.lilly.com/jp###

1. Hanel W, Epperla N. Emerging therapies in mantle cell lymphoma. J Hematol Oncol. 2020;13(1):79.
Published 2020 Jun 17. doi:10.1186/s13045-020-00914-1
2. Gu D, Tang H, Wu J, Li J, Miao Y. Targeting Bruton tyrosine kinase using non-covalent inhibitors inB cell malignancies. J Hematol Oncol. 2021;14(1):40. Published 2021 Mar 6. doi:10.1186/s13045021-01049-7
3. National Organization for Rare Disorders. Mantle cell lymphoma. Accessed 26 October 2022.
https://rarediseases.org/rare-diseases/mantle-cell-lymphoma
4. Mukkamalla SKR, Taneja A, Malipeddi D, et al. Chronic Lymphocytic Leukemia. [Updated 2023 Feb18]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from:https://www.ncbi.nlm.nih.gov/books/NBK470433/
5. The Leukemia and Lymphoma Society. NHL Subtypes. Access here: https://www.lls.org/lymphoma/non-hodgkin-lymphoma/nhl-subtypes. Accessed on October 25, 2023.
ContactCorporate Communications Dept., Nippon Shinyaku Co., Ltd.
FAX: +81-75-321-9128

2/2