# TT420C2308 /  FIRST-308

> TT420C2308 /  FIRST-308 (iPhone/iPad app by ERT, INC.)

- Source: https://appshunter.io/ios/app/tt420c2308-first-308/id6448976706 (this page in markdown: same URL + `.md`)
- Developer: [ERT, INC](https://appshunter.io/developer/1160214546)
- Category: Medical, Health & Fitness
- Price: Free
- Age rating: 12+
- Requires: iOS 12.0 · 69 MB
- Languages: English
- Released: 2023-10-18
- Data updated: 2026-06-21
- User reviews in markdown: https://appshunter.io/ios/app/tt420c2308-first-308/id6448976706/reviews.md

## What is TT420C2308 /  FIRST?

You are invited to participate in the TransThera Sciences TT420C2308 study. The TransThera Sciences eCOA App is intended for collection of patient-reported outcomes and the completion of patient diaries relating to the TT420C2308 clinical trial. Patients must be given accounts by a participating site in order to log in to the app.


## Version history (last 5 releases)

### 2.14.0 (55) — 2026-06-06

Report updates

### 2.13.9 (50) — 2025-12-11

Language Update

### 2.13.8 (45) — 2025-06-14

Update availability window of QLQ-C30 and QLQ-BIL21 assessments

### 2.13.7 (40) — 2025-01-28

Update to device seed code

### 2.13.7 (40) — 2025-01-28

Update to device seed code

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All apps by ERT, INC: https://appshunter.io/developer/1160214546

## Related topics

[ert n](https://appshunter.io/ios/topics/ert-n)

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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 2026-06-21.*