# Study of Glycerol Phenylbutyrate & Sodium Phenylbutyrate in Phenylbutyrate Naïve Patients With Urea Cycle Disorders (UCDs)

> **NCT03335488** · PHASE4 · COMPLETED · sponsor: **Amgen** · enrollment: 16 (actual)

## Conditions studied

- Urea Cycle Disorder

## Interventions

- **DRUG:** RAVICTI
- **DRUG:** NaPBA

## Key facts

- **NCT ID:** NCT03335488
- **Lead sponsor:** Amgen
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2018-02-20
- **Primary completion:** 2022-07-05
- **Final completion:** 2022-12-20
- **Target enrollment:** 16 (ACTUAL)
- **Last updated:** 2024-07-01


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03335488

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03335488, "Study of Glycerol Phenylbutyrate & Sodium Phenylbutyrate in Phenylbutyrate Naïve Patients With Urea Cycle Disorders (UCDs)". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT03335488. Licensed CC0.

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