R&D Products
For Print November 13, 2026
TOKYO and CAMBRIDGE, Mass., November 13, 2026 — Eisai Co., Ltd. and Biogen Inc. (Nasdaq: BIIB) announced today that “LEQEMBI® Pen”, the subcutaneous (SC) formulation of “LEQEMBI®” (generic name: lecanemab) has been launched in Japan.
LEQEMBI Pen was approved as a new route of administration in Japan on September 16, 2026, and was published in Japan’s National Health Insurance (NHI) Drug Price List today. Following the United States, Japan is the second co