# The PORTRAIT Study

> **NCT04222452** · — · UNKNOWN · sponsor: **Sheffield Teaching Hospitals NHS Foundation Trust** · enrollment: 14 (actual)

## Conditions studied

- Hypophosphatasia

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT04222452
- **Lead sponsor:** Sheffield Teaching Hospitals NHS Foundation Trust
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2021-07-12
- **Primary completion:** 2023-02-28
- **Final completion:** 2023-02-28
- **Target enrollment:** 14 (ACTUAL)
- **Last updated:** 2022-11-02

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04222452

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04222452, "The PORTRAIT Study". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04222452. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*