March 31, 2022
EA Pharma Co., Ltd.
Kissei Pharmaceutical Co., Ltd.
(Code 4547, Tokyo Stock Exchange 1st Section)

Results of Phase III Clinical Study of “CAROGRAⓇ Tablets”
Conducted in Japan for Treatment of Ulcerative Colitis (AJM300/CT3)
Published in The Lancet Gastroenterology & Hepatology
EA Pharma Co., Ltd. (President, Hidenori Yabune; Headquarters, Chuo-ku, Tokyo, Japan; “EAPharma”) and Kissei Pharmaceutical Co., Ltd. (Head Office: Matsumoto, Nagano; Chairman andCEO: Mutsuo Kanzawa; "Kissei") announced that results of Phase III clinical study(AJM300/CT3) conducted in Japan for CAROGRAⓇ(nonproprietary name, carotegrast methyl;development code AJM300; hereinafter “CAROGRA Ⓡ ”), of which EA Pharma obtained themanufacturing and marketing approval as of March 28, 2022 indicated for treatment of ulcerative
colitis, published in The Lancet Gastroenterology & Hepatology*, a sister journal of The Lancet.
The Lancet is one of the most influential medical journals in the world.
This study was a randomized, double-blind, placebo-controlled study in 203 patients withmoderate active ulcerative colitis who had inadequate response or intolerance to the standard
treatment with 5-aminosalicylic acid in 82 medical facilities in Japan. The patients wererandomized to the groups treated with CAROGRAⓇ or placebo and received oral administration
3 times daily for 8 weeks to investigate the efficacy and safety of CAROGRAⓇ. As a result of thestudy, in clinical response rate by Mayo Score at 8 weeks of administration (the primaryendpoint), the superiority of CAROGRAⓇ group to placebo group was demonstrated. In addition,
statistically significant improvements were observed in the secondary endpoints including
endoscopic remission rate. The adverse event incidences were similar between CAROGRAⓇ
group and placebo group. The major adverse events observed in CAROGRA Ⓡ group werenasopharyngitis, headache and nausea.
CAROGRA Ⓡ is a small molecule that was originated by EA Pharma (formerly known as
Ajinomoto Pharmaceuticals Co., Ltd.) and is the world-first orally available α4-integrin antagonist.
In Japan, Kissei distributes CAROGRA Ⓡ with copromotion by EA Pharma. EA Pharma andKissei strive to increase treatment options for ulcerative colitis to contribute to QOL (Quality ofLife) of patients and their families.
* Katsuyoshi Matsuoka et al. AJM300 (carotegrast methyl), an oral antagonist of α4integrin, as induction therapy for patients with moderately active ulcerative colitis: amulticentre, randomised, double-blind, placebo-controlled phase 3 study
The Lancet Gastroenterology & Hepatology, Published: March 30, 2022
https://www.thelancet.com/journals/langas/onlineFirstMedia Inquiries
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《More Information》
1．About EA Pharma Co., Ltd.
EA Pharma Co., Ltd., a subsidiary of Eisai Co., Ltd. for gastrointestinal disease area, wasestablished in April 2016 by integration of the gastrointestinal business unit with more than 60 year’s
history of the Eisai Group and the gastrointestinal business unit of the Ajinomoto Group having
amino acid as its business core. EA Pharma Co., Ltd., is a gastrointestinal specialty pharmaceuticalcompany with a full value chain covering R&D, production & logistics and sales & marketing.
For further information on EA Pharma Co., Ltd., please visit https://www.eapharma.co.jp/en/
2．About Kissei Pharmaceutical Co., Ltd.
Under the management philosophy “contribute to society through high-quality, innovative
pharmaceutical products” and “serve society through our employees”, Kissei PharmaceuticalCo., Ltd. provides unique innovative pharmaceutical products as a drug discovery and R&Doriented company for patients in the world with a special focus on urology, nephrology, dialysis,diabetes, gastroenterology and rare diseases.
For more details about Kissei Pharmaceutical Co., Ltd., please visit https://www.kissei.co.jp/
3．About CAROGRAⓇ (nonproprietary name: carotegrast methyl)
CAROGRAⓇ is an orally available small molecule α4-integrin antagonist that was originated by
EA Pharma (formerly known as Ajinomoto Pharmaceuticals Co., Ltd.). CAROGRAⓇ acts on
both α4β1 and α4β7 integrins expressed on the surface of inflammatory cells to exert an antiinflammatory effect by inhibiting the cell adhesion and suppressing excessive aggregation andinvasion of inflammatory cells into the inflamed site in the colonic mucosa in ulcerative colitis.
4．About Ulcerative Colitis
Ulcerative colitis is an inflammatory disease that causes ulcers and erosions in the colonicmucosa. The major symptoms are abdominal pain, diarrhea, bloody stools and so on. In manycases, the “remission” stage where the symptoms improve and the “relapse” stage where thesymptoms deteriorate repeat over time, and patients suffer from the decline of QOL. The
mechanism of onset is unknown up to the present. In Japan, ulcerative colitis is one of the“designated intractable disease” by Ministry of Health, Labour and Welfare. The registeredpatient number in Japan was nearly 220,000 in 2019, and the patient number has a tendency toincrease in recent years.1)
1) Basic treatment guidance for patients with ulcerative colitis” (revised March 2020), Research group for intractable inflammatory bowel
diseases, Research project on rare and intractable diseases, Health and Labour Sciences Research Grants.

5．About Mayo Score
Mayo Score is a disease activity index to rate the activity level of ulcerative colitis most frequently
used in clinical study in these years. Mayo Score comprises of 4 sub-scores (stool frequency,
rectal bleeding, mucosal appearance at endoscopy and physician’s global assessment). Eachscore ranges between 0 to 3 points, and the disease activity is rated by the total of the points(0-12 points). The disease activity is regarded mild with the points between 3-5, moderate
between 6-10 and severe between 11-12.

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