# CTCAE v5.0 (EN/JA) Edition — CTCAE v5.0 Viewer

> CTCAE v5.0 Viewer (iPhone/iPad app by TAKAFUMI MIZUGUCHI.)

- Source: https://appshunter.io/ios/app/ctcae-v50-enja-edition/id1505294578 (this page in markdown: same URL + `.md`)
- Developer: [TAKAFUMI MIZUGUCHI](https://appshunter.io/developer/400743346)
- Category: Medical, Reference
- Price: Free
- Age rating: 17+
- Requires: iOS 17.6 · 13 MB
- Languages: American English, Japanese
- Released: 2025-10-17
- Data updated: 2026-07-07
- User reviews in markdown: https://appshunter.io/ios/app/ctcae-v50-enja-edition/id1505294578/reviews.md

## What is CTCAE v5.0 (EN/JA) Edition?

The most advanced CTCAE v5.0 JCOG viewer app for healthcare professionals.
  Quickly and intuitively search and browse the Japanese (JCOG) and English versions of the Common Terminology Criteria for Adverse Events (CTCAE) v5.0, frequently referenced in clinical
  trials and daily practice.

  【Key Features】
   - Full Offline Access: Use all features even without an internet connection.
   - High-Speed Bilingual Search: Instantly search by adverse event term or SOC in both Japanese and English.
   - iCloud Sync Bookmarks: Favorite items are automatically synced across your iPhone, iPad, and Apple Watch.
   - Convenient Export: Export bookmarked items to CSV or PDF format, perfect for creating conference materials or sharing.
   - Study Mode: Displays random adverse events on the home screen to help you test your knowledge.

  【Premium Feature: Apple Watch Support】
  Unlock the Apple Watch app via in-app purchase for these features:
   - Standalone Operation: Search and view all adverse events on your Apple Watch, even without your iPhone.
   - Quick Reference on Your Wrist: Check grade classifications faster in a clinical setting.
   - Voice Search: Use Siri for hands-free searching.
   - Real-Time Sync: Bookmarks from your iPhone instantly appear on your Apple Watch.

  【About the Data】
  The data in this app is based on CTCAE v5.0 published by the NCI (National Cancer Institute) and the Japanese version translated by JCOG (Japan Clinical Oncology Group).

  【Disclaimer】
  This application is intended for reference purposes only and is not a substitute for professional medical judgment. For actual diagnosis and treatment, always refer to the latest official
  documentation and follow the judgment of qualified healthcare professionals.

Illustrations by Storyset


## Version history (last 4 releases)

### 1.3.6 — 2025-10-22

We have fixed the issue preventing in-app reviews.
We would greatly appreciate it if you could leave a review for the app.

### 1.3.5 — 2025-10-19

・We've made the "Bookmarks & Notes" section permanently visible on iPad.
・We've updated the acknowledgments section.

### 1.3.4 — 2025-10-18

Accessibility has been improved.

### 1.3.3 — 2025-10-17

No release notes.

## Apps similar to CTCAE v5.0 (EN/JA) Edition

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [CTCAE 6 Pro](https://appshunter.io/ios/app/ctcae-6-pro/id1625560237) | 5.0 (6) | Free | Medical |
| [OpiRecipe](https://appshunter.io/ios/app/opirecipe/id6449662345) | — | Free | Medical |
| [IQVIA Patient Portal](https://appshunter.io/ios/app/iqvia-patient-portal/id6470056340) | 3.0 (2) | Free | Medical |
| [Bethesda Clinical Oncology](https://appshunter.io/ios/app/bethesda-clinical-oncology/id6748145969) | — | Free | Medical |
| [TNMCalc8](https://appshunter.io/ios/app/tnmcalc8/id1555191660) | — | $6.99 | Medical |
| [CTCAE 6 GO](https://appshunter.io/ios/app/ctcae-6-go/id6749604539) | 5.0 (3) | Free | Medical |

## More apps by TAKAFUMI MIZUGUCHI

- [調剤電卓](https://appshunter.io/ios/app/id400743343)
- [CTCAE v4.0 (EN/JA) Edition](https://appshunter.io/ios/app/ctcae-v40-enja-edition/id576215567)

All apps by TAKAFUMI MIZUGUCHI: https://appshunter.io/developer/400743346

## Related topics

[ctcae 5 pro](https://appshunter.io/ios/topics/ctcae-5-pro) · [ctcae](https://appshunter.io/ios/topics/ctcae)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-07.*