# A Study to Assess Plasma Ammonia Time-Normalized Area Under the Curve and Rate of Ureagenesis in Healthy Adult Subjects

> **NCT04269122** · — · COMPLETED · sponsor: **Ultragenyx Pharmaceutical Inc** · enrollment: 120 (actual)

## Conditions studied

- Ornithine Transcarbamylase Deficiency

## Interventions

- **OTHER:** No Intervention

## Key facts

- **NCT ID:** NCT04269122
- **Lead sponsor:** Ultragenyx Pharmaceutical Inc
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2019-08-02
- **Primary completion:** 2020-02-20
- **Final completion:** 2020-02-20
- **Target enrollment:** 120 (ACTUAL)
- **Last updated:** 2020-03-30


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04269122

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04269122, "A Study to Assess Plasma Ammonia Time-Normalized Area Under the Curve and Rate of Ureagenesis in Healthy Adult Subjects". Retrieved via AI Analytics 2026-06-12 from https://api.ai-analytics.org/clinical/NCT04269122. Licensed CC0.

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