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Clinical Trial Summary

This is a Phase 1/2, open-label, single arm, multicenter, safety and dose finding study of DTX301 in adults with late-onset OTC deficiency. The primary objective of the study is to determine the safety of single intravenous (IV) doses of DTX301.


Clinical Trial Description

Eligible participants will receive a single IV infusion of DTX301. Dose escalation will be conducted according to a model that uses the collected data to predict the safety profile of the dose in order to determine the optimal biological dose (OBD). The decision to proceed to the next dose cohort will be made after the data monitoring committee (DMC) has evaluated the safety data for all participants in a dosing cohort. Participants will be followed for 52 weeks after dosing. After completion of this study, participants will be asked to enroll in a 4-year extension study to evaluate the long term (a total of 5 years) safety and efficacy of DTX301. This study was previously posted by Dimension Therapeutics, which has been acquired by Ultragenyx. ;


Study Design


Related Conditions & MeSH terms

  • Ornithine Transcarbamylase (OTC) Deficiency

NCT number NCT02991144
Study type Interventional
Source Ultragenyx Pharmaceutical Inc
Contact
Status Completed
Phase Phase 1/Phase 2
Start date July 31, 2017
Completion date December 16, 2021

See also
  Status Clinical Trial Phase
Active, not recruiting NCT03636438 - Long Term Follow Up to Evaluate DTX301 in Adults With Late-Onset OTC Deficiency