Chugai files for additional indication of Enspryng in Japan

1 August 2026

Japanese drugmaker Chugai (TYO: 4519) announced that it filed a regulatory application with the Ministry of Health, Labor and Welfare (MHLW) for an additional indication of “prevention of relapse in myelin oligodendrocyte glycoprotein (MOG) antibody-associated disease” for Enspryng (satralizumab [genetical recombination)], a pH-dependent binding humanized anti-interleukin (IL)-6 receptor monoclonal antibody (MAb).

“MOG antibody-associated disease (MOGAD) is a rare autoimmune disease in which repeated relapses may leave neurological symptoms, such as visual field and vision impairment, as well as paralysis, causing long-term impacts on patients’ lives. In a global Phase III study, Enspryng reduced the risk of relapse by 68% compared with placebo. We will work closely with the regulatory authority so that we can deliver Enspryng to patients with this disease, for which there are currently no approved treatments, as soon as possible,” said Chugai’s president and chief executive, Dr Osamu Okuda.

This article is accessible to registered users, to continue reading please register for free.  A free trial will give you access to exclusive features, interviews, round-ups and commentary from the sharpest minds in the pharmaceutical and biotechnology space for a week. If you are already a registered user please login. If your trial has come to an end, you can subscribe here.

Login to your account

Become a subscriber

 

£820

Or £77 per month

Subscribe Now
  • Unfettered access to industry-leading news, commentary and analysis in pharma and biotech.
  • Updates from clinical trials, conferences, M&A, licensing, financing, regulation, patents & legal, executive appointments, commercial strategy and financial results.
  • Daily roundup of key events in pharma and biotech.
  • Monthly in-depth briefings on Boardroom appointments and M&A news.
  • Choose from a cost-effective annual package or a flexible monthly subscription
The Pharma Letter is an extremely useful and valuable Life Sciences service that brings together a daily update on performance people and products. It’s part of the key information for keeping me informed

Chairman, Sanofi Aventis UK

Company News Directory



Companies featured in this story

More ones to watch >






Company Spotlight



More Features in Biotechnology