Japan Pharma Regulatory Brief

PMDA · MHLW · monthly list

Japan New Drug Approvals: December 2025

All drugs approved in Japan in December 2025, in English.

Last updated: 2026-10-02 · 22 approvals

Japan approved 22 drugs in December 2025 (approval date: 2025-12-22): 12 new active ingredient, 3 new indication, 2 new route, 2 new dosage, 1 biosimilar, 1 new combination, 1 new dosage form. Median lag vs FDA for this month: 2.4 years (871 days) (n=9).

ApprovedBrandGeneric (INN)CompanyIndicationApproval typeFDA dateEMA dateLag vs FDALag vs EMASource
2025-12-22Zynyz
ジニイズ
Retifanlimab
レチファンリマブ(遺伝子組換え)
Orphan
Incyte Biosciences Japan G.K.
インサイト・バイオサイエンシズ・ジャパン(同)
Treatment of unresectable advanced or recurrent squamous cell carcinoma of the anal canal
切除不能な進行・再発の肛門管扁平上皮癌
New active ingredient
orphanpriority
2023-03-222024-04-191,006 d
2.8 y
612 d
1.7 y
[1] [2] [3] [4] [5]
2025-12-22Zurzuvae
ザズベイ
Zuranolone
ズラノロン
Shionogi & Co., Ltd.
塩野義製薬(株)
Treatment of depression
うつ病・うつ状態
New active ingredient
standard
2023-08-04—871 d
2.4 y
—[1] [2] [3] [4]
2025-12-22Yselty
イセルティ
Linzagolix choline
リンザゴリクスコリン
Kissei Pharmaceutical Co., Ltd.
キッセイ薬品工業(株)
Alleviation of menorrhagia, lower abdominal pain, backache, and anemia that are associated with uterine fibroids
子宮筋腫に基づく下記諸症状の改善 過多月経、下腹痛、腰痛、貧血
New active ingredient
standard
—2022-06-14—1,287 d
3.5 y
[1] [2] [3] [4]
2025-12-22Ustekinumab BS
ウステキヌマブBS
Ustekinumab [Ustekinumab biosimilar 4]
ウステキヌマブ(遺伝子組換え)[ウステキヌマブ後続4]
Nipro Corporation
ニプロ(株)
A biosimilar indicated for the treatment of the following diseases in patients who have not sufficiently responded to conventional therapies: plaque psoriasis and psoriatic arthritis
既存治療で効果不十分な下記疾患 尋常性乾癬、乾癬性関節炎
Biosimilar
standard
————[1] [2] [3]
2025-12-22Upneeq Mini
アップニークミニ
Oxymetazoline hydrochloride
オキシメタゾリン塩酸塩
Santen Pharmaceutical Co., Ltd.
参天製薬(株)
Treatment of acquired blepharoptosis
後天性眼瞼下垂
New indication
standard
————[1] [2] [3]
2025-12-22Tecentriq
テセントリク
Atezolizumab
アテゾリズマブ(遺伝子組換え)
Orphan
Chugai Pharmaceutical Co., Ltd.
中外製薬(株)
Treatment of unresectable thymic carcinoma
切除不能な胸腺癌
New indication
orphanpriority
————[1] [2] [3]
2025-12-22Sephience
セピエンス
Sepiapterin
セピアプテリン
PTC Therapeutics K.K.
PTC セラピューティクス(株)
Treatment of phenylketonuria
フェニルケトン尿症
New active ingredient
orphanpriority
2025-07-282025-06-19147 d
0.4 y
186 d
0.5 y
[1] [2] [3] [4] [5]
2025-12-22Rybrofaz
リブロファズ
Amivantamab/ Vorhyaluronidase alfa
アミバンタマブ(遺伝子組換え)/ボルヒアルロニダーゼ アルファ(遺伝子組換え)
Janssen Pharmaceutical K.K.
ヤンセンファーマ(株)
Treatment of unresectable advanced or recurrent epidermal growth factor receptor (EGFR) gene exon 20 insertion mutation-positive non-small cell lung cancer and unresectable advanced or recurrent epidermal growth factor receptor (EGFR) gene mutation-positive non-small cell lung cancer
EGFR遺伝子エクソン20挿入変異陽性の切除不能な進行・再発の非小細胞肺癌およびEGFR遺伝子変異陽性の切除不能な進行・再発の非小細胞肺癌
New combination
standard
————[1] [2] [3]
2025-12-22Ravicti
ラヴィクティ
Glycerol phenylbutyrate
フェニル酪酸グリセロール
Orphan
OrphanPacific, Inc.
(株)オーファンパシフィック
Treatment of urea cycle disorders
尿素サイクル異常症
New active ingredient
orphanpriority
2013-02-012015-11-264,707 d
12.9 y
3,679 d
10.1 y
[1] [2] [3] [4] [5]
2025-12-22PreemieFort Enteral
プリミーフォート経腸用
(1) (2) Human milk/ Calcium glycerophosphate/ Calcium gluconate hydrate/Calcium chloride hydrate/Anhydrous Sodium Citrate/Potassium citrate/Magnesium monohydrogen phosphate/Zinc sulfate hydrate/Sodium chloride/Copper sulfate (3) Human milk
12人乳/グリセロリン酸カルシウム/グルコン酸カルシウム水和物/塩化カルシウム水和物/無水クエン酸ナトリウム/クエン酸カリウム/リン酸一水素マグネシウム/硫酸亜鉛水和物/塩化ナトリウム/硫酸銅 3人乳
Clinigen K.K.
クリニジェン(株)
Nutritional management of neonates and infants with failure to thrive, such as very low birth weight infants. (3) A drug with a new active ingredient indicated for the nutritional management of neonates and infants with failure to thrive, such as very low birth weight infants
(1) (2) 極低出生体重児等の体重増加不全を呈する新生児及び乳児の栄養管理 (3) 極低出生体重児等の体重増加不全を呈する新生児及び乳児の栄養管理
New active ingredient
standard
————[1] [2] [3]
2025-12-22Opsumit
オプスミット小児用分
Macitentan
マシテンタン
Orphan
Janssen Pharmaceutical K.K.
ヤンセンファーマ(株)
Treatment of pulmonary arterial hypertension. (3) A drug with a new additional pediatric dosage indicated for the treatment of pulmonary arterial hypertension
肺動脈性肺高血圧症
New dosage form
orphanspecific-usepriority
————[1] [2] [3]
2025-12-22Minjuvi
ミンジュビ
Tafasitamab
タファシタマブ(遺伝子組換え)
Orphan
Incyte Biosciences Japan G.K.
インサイト・バイオサイエンシズ・ジャパン(同)
Treatment of relapsed or refractory follicular lymphoma
再発又は難治性の濾胞性リンパ腫
New active ingredient
orphanpriority
2020-07-312021-08-261,970 d
5.4 y
1,579 d
4.3 y
[1] [2] [3] [4] [5]
2025-12-22Lunsumio
ルンスミオ
Mosunetuzumab
モスネツズマブ(遺伝子組換え)
Chugai Pharmaceutical Co., Ltd.
中外製薬(株)
Treatment of relapsed or refractory follicular lymphoma
再発又は難治性の濾胞性リンパ腫
New route
standard
————[1] [2] [3]
2025-12-22Kerendia
ケレンディア
Finerenone
フィネレノン
Bayer Yakuhin, Ltd.
バイエル薬品(株)
Treatment of chronic heart failure (for use only in patients receiving standard treatment of chronic heart failure)
慢性心不全 ただし、慢性心不全の標準的な治療を受けている患者に限る。
New indication
standard
————[1] [2] [3]
2025-12-22Inluriyo
イムルリオ
Imlunestrant tosilate
イムルネストラントトシル酸塩
Eli Lilly Japan K.K.
日本イーライリリー(株)
Treatment of hormone receptor (HR)-positive and human epidermal growth factor receptor 2 (HER2)-negative inoperable or recurrent breast cancer with ESR1 mutation that has progressed after endocrine therapy
内分泌療法後に増悪したESR1遺伝子変異を有するホルモン受容体陽性かつHER2 陰性の手術不能又は再発乳癌
New active ingredient
standard
2025-09-252026-01-0988 d
0.2 y
18 d earlier
Japan first
[1] [2] [3] [4] [5]
2025-12-22Exdensur
エキシデンサー
Depemokimab
デペモキマブ(遺伝子組換え)
GlaxoSmithKline K.K.
グラクソ・スミスクライン(株)
Treatment of bronchial asthma (for use only in patients with severe or intractable bronchial asthma whose asthmatic responses are uncontrollable with conventional therapies) and chronic rhinosinusitis with nasal polyps (for use only in patients who have not responded sufficiently to conventional treatments)
○気管支喘息(既存治療によっても喘息症状をコントロールできない重症又は難治の患者に限る) ○鼻茸を伴う慢性副鼻腔炎(既存治療で効果不十分な患者に限る)
New active ingredient
standard
2025-12-162026-02-126 d
0.0 y
52 d earlier
Japan first
[1] [2] [3] [4] [5]
2025-12-22Elzonris I.V.
エルゾンリス
Tagraxofusp
タグラキソフスプ(遺伝子組換え)
Nippon Shinyaku Co., Ltd.
日本新薬(株)
Treatment of blastic plasmacytoid dendritic cell neoplasm
芽球性形質細胞様樹状細胞腫瘍
New active ingredient
orphanpriority
2018-12-212021-01-072,558 d
7.0 y
1,810 d
5.0 y
[1] [2] [3] [4] [5]
2025-12-22Ekterly
エクテリー
Sebetralstat
セベトラルスタット
Orphan
KalVista Pharmaceuticals Ltd.Treatment of acute attacks of hereditary angioedema
遺伝性血管性浮腫の急性発作
New active ingredient
orphanpriority
2025-07-032025-09-17172 d
0.5 y
96 d
0.3 y
[1] [2] [3] [4] [5]
2025-12-22Dupixent
デュピクセント
Dupilumab
デュピルマブ(遺伝子組換え)
Sanofi K.K.
サノフィ(株)
Treatment of bronchial asthma (for use only in patients with severe or intractable bronchial asthma whose asthmatic responses are uncontrollable with conventional therapies)
気管支喘息(既存治療によっても喘息症状をコントロールできない重症又は難治の患者に限る)
New dosage
standard
————[1] [2] [3]
2025-12-22Carboplatin
カルボプラチン
Carboplatin
カルボプラチン
Viatris Healthcare G.K.
ヴィアトリス・ヘルスケア(同)
Treatment of ovarian cancer
卵巣癌
New route
standard
————[1] [2] [3]
2025-12-22Avarept
アバレプト
Motugivatrep
モツギバトレプ
Senju Pharmaceutical Co., Ltd.
千寿製薬(株)
Treatment of dry eye
ドライアイ
New active ingredient
standard
————[1] [2] [3]
2025-12-22Adzynma
アジンマ
Apadamtase alfa/ Cinaxadamtase alfa
アパダムターゼ アルファ(遺伝子組換え)/シナキサダムターゼ アルファ(遺伝子組換え)
Takeda Pharmaceutical Company Limited
武田薬品工業(株)
Treatment of congenital thrombotic thrombocytopenic purpura
先天性血栓性血小板減少性紫斑病
New dosage
orphanpriority
————[1] [2] [3]

Click a column header to sort. Lag = days between the FDA (or EMA) approval and the Japanese approval of the same active ingredient; “Japan first” means Japan approved it earlier. Lag is shown only when a matching foreign approval was found. = no English name found; Japanese kept.

Source: PMDA / MHLW (PDL1.0). Unofficial English translation, edited by Japan Pharma Regulatory Brief.

Methodology & sources

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