Japan Pharma Regulatory Brief

A weekly brief · In English · Free during launch

Japan regulates
in Japanese.
Read it in English.

Approvals, safety revisions, guidance and public-comment calls from MHLW and PMDA. We read them every week, keep what matters to drug and device companies, and link every line to the source.

One email a week · Ten minutes to read · Unsubscribe anytime

New in Japan16 SEPEptinezumab16 SEPInsulin efsitora alfaEli Lilly Japan16 SEPPitolisant hydrochloride16 SEPEmapalumabSwedish Orphan Biovitrum Japan16 SEPDordaviprone hydrochlorideOhara Pharmaceutical16 SEPIcotrokinra hydrochlorideJanssen Pharmaceutical16 SEPAnselamimabAlexion Pharma GK16 SEPCenobamateOno Pharmaceutical16 SEPGefurulimabAlexion Pharma GK16 SEPPembrolizumab, verahydaluronidase alfaMSD16 SEPMirvetuximab soravtansineTakeda Pharmaceutical Company Limi16 SEPTovorafenibIpsen24 AUGBepirovirsen sodiumGlaxoSmithKline24 AUGSetmelanotideNew in Japan16 SEPEptinezumab16 SEPInsulin efsitora alfaEli Lilly Japan16 SEPPitolisant hydrochloride16 SEPEmapalumabSwedish Orphan Biovitrum Japan16 SEPDordaviprone hydrochlorideOhara Pharmaceutical16 SEPIcotrokinra hydrochlorideJanssen Pharmaceutical16 SEPAnselamimabAlexion Pharma GK16 SEPCenobamateOno Pharmaceutical16 SEPGefurulimabAlexion Pharma GK16 SEPPembrolizumab, verahydaluronidase alfaMSD16 SEPMirvetuximab soravtansineTakeda Pharmaceutical Company Limi16 SEPTovorafenibIpsen24 AUGBepirovirsen sodiumGlaxoSmithKline24 AUGSetmelanotide
897days

Median wait for a new drug in Japan after its first FDA approval

PMDA · Drugs@FDA · n=96

369

Japanese drug approvals, every one translated and linked

FY2024 – FY2026

1,912

Prescription products on limited or suspended shipment right now

MHLW file · 2026-09-25

630

Drug and device recalls in Japan over the last twelve months

PMDA recall notices

01 — Inside every issue

Seven things you will not have to dig for.

  1. 01承認

    Approvals

    New active ingredients, indications and routes, with sponsors and orphan or conditional status.

  2. 02安全

    Safety

    Label revisions, risk-management changes, nitrosamine notices and recalls.

  3. 03指針

    Guidance & review

    PMDA early considerations, draft review points and consultation windows.

  4. 04意見

    Public comments

    What is open, the deadline, where to send it, and whether it must be in Japanese.

  5. 05品質

    Quality & GMP

    GMP non-conformity updates, foreign manufacturer registrations and Japanese Pharmacopoeia drafts.

  6. 06機器

    Devices & SaMD

    Device notices, AI and SaMD review points, reimbursement, and a monthly English list of new device approvals.

  7. 07予定

    Coming up

    Effective dates, council meetings and deadlines, plus a short “who should care” on every main item.

02 — Who reads it

Written for people who answer for Japan.

A

Regulatory affairs

Foreign pharma, biotech and medtech teams with products in Japan, or planning to file.

B

Japan-entry consultants

Who need new notices, deadlines and review guidance early, for their clients.

C

Safety & quality

PV, CMC and GMP teams tracking label revisions, nitrosamines, recalls and inspections.

D

DMAHs & SaMD teams

Designated MAHs briefing overseas clients; US, EU, Korean and Israeli SaMD startups.

E

Investors & analysts

Following Japanese approvals, conditional approvals and policy shifts for the names they cover.

A small white wearable medical sensor resting on washi paper
Section 06 — Devices & SaMD
03 — Medical devices & SaMD

PMDA's device lists are in Japanese. Ours aren't.

For device and IVD makers, SaMD and AI startups, DMAHs and Japan-entry consultants. PMDA's English output for devices is thin and its product search is Japanese-only. We work from the Japanese originals.

  • New approvals, in English. A monthly table of new and improved devices: date, product, class, applicant, source.
  • SaMD & AI. DASH for SaMD, one-stop consultations, and review points for AI, DTx and generative-AI software.
  • Reimbursement. Insurance listings, special-materials pricing and how SaMD is priced at Chuikyo.
  • QMS, labelling & safety. Certification standards, e-labelling, device recalls and council meetings.
04 — From a recent issue

This is what lands in your inbox.

Japan Pharma Regulatory BriefWeek of Sep 8–14, 2026
Shortened excerpt
Safety

Nitrosamines: three atomoxetine generics now ship under an interim limit

On Sep 10, PMDA posted notices from three generic makers of atomoxetine tablets (Daiichi Sankyo Espha, Nipro, Towa). All three found N-nitroso-atomoxetine in their products.

  • Interim control limit agreed with MHLW: 5.583 ppm. Only lots below it are shipped.
  • Acceptable intake 100 ng/day, which corresponds to a final limit of 0.83 ppm. Reformulation is under way.
  • Under MHLW's July 2025 notice, a finding in another company's product with the same API can in principle require you to set a specification too.

Who should care: anyone filing atomoxetine in Japan should expect questions on NDSRI control.

Source → pmda.go.jp/safety/info-services/drugs/0371.html

Devices

PMDA drafts review points for generative-AI medical software

PMDA published draft review points for five types of software as a medical device, including programs using generative AI. Comments on the generative-AI draft are open until Mar 17, 2027. Few regulators have published review criteria for generative-AI medical devices yet.

Source → pmda.go.jp/review-services/drug-reviews/about-reviews/devices/0058.html

06 — How we work

Official documents. Nothing else.

i.

Primary sources only

We work from MHLW and PMDA documents and companies' own public notices. We never rewrite other publications' articles.

ii.

Every line linked

Each item links to the original Japanese document, so you can check it or forward it to your Japan team.

iii.

Checked before sending

Numbers, names and dates are checked against the original. If we can't confirm something, it doesn't go out.

07 — How it compares

When you need what changed, not everything.

Japan regulatory news in English has mostly come through trade-press subscriptions that cost thousands per seat a year. They cover much more: industry news, interviews, pricing. If you mainly need to know what the regulators published this week, you may not need all of that.

This briefTrade-press subscriptions
PriceFree during launchOften thousands per seat per year
FocusOfficial MHLW / PMDA outputBroad industry news and analysis
SourcesEvery item linked to the originalVaries
FormatOne email a week, about ten minutesDaily news site and archive
Best forKeeping up with changes and deadlinesComprehensive market coverage
08 — Questions

Fair questions.

Is it really free?

Yes, during the launch period. We may add a paid tier later. If we do, we'll tell you in advance, and early subscribers get a founding-member discount. You will never be charged without choosing to upgrade.

How often will I get emails?

Once a week. No daily email, no promotional mail.

Who writes it?

An independent publisher based in Japan who reads the Japanese originals. Software collects new notices every day and helps draft summaries. Every item is checked against the source before sending.

Do you cover devices and regenerative medicine?

Yes. Medical devices and SaMD have their own section every week, plus a monthly English table of new device approvals. Regenerative medical products are covered when MHLW or PMDA publish on them.

We're a DMAH or consultancy. Can we share it with clients?

Forwarding within your own team is fine. For passing updates on to client companies, a partner licence will come with paid plans. Write to us and we'll share the terms.

Do you cover NHI drug pricing?

We note upcoming listings and major pricing-policy steps when they appear in official documents. Detailed pricing analysis is not the focus.

Is this legal or regulatory advice?

No. It is an information summary of public government documents. For decisions, check the original Japanese text and your own advisers.

Next issue — Friday

Japan, decoded every week.

MHLW and PMDA updates in plain English, with a link to every source. Free while we launch.

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