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Vosoritide for Selected Genetic Causes of Short Stature
Plain-language guide to NCT04219007: phase 2 interventional trial of Vosoritide, 56 participants. Who took part, design and what was measured.
Key Facts
- Registry ID
- NCT04219007
- Phase
- phase 2
- Status
- active, not recruiting
- Start
- 2020-08-04
- Completion (planned or actual)
- 2025-08-14
- Participants
- 56 (actual)
- Design
- na, open label (everyone knows who gets what), treatment
- Conditions studied
- Short Stature
- Results posted
- not yet
What This Study Did, in Plain Language
What Was Tested
This registered phase 2 trial tested Vosoritide.
Short stature can be caused by a number of genetic etiologies, many of which directly affect the growth plate.
The FGFR3/CNP pathway is central to growth of the chondrocyte.
It had 1 arm (groups): Genetic Short Stature (experimental).
The registry classes the interventions as drug.
Who Took Part
56 actual participants took part.
It was open to people of any sex aged from 3 years up to 10 years.
Healthy volunteers were not accepted; participants needed the condition being studied.
The full record lists 11 inclusion and 9 exclusion criteria; among the exclusions: prior treatment with a gnrh analog, aromatase inhibitor or oxandrolone; history of any type of malignancy; chronic medical condition known to affect growth including but not limited to:.
How the Study Was Run
The set-up was single-group and open-label.
Being open-label, the Vosoritide study did not mask who received what.
Everyone received the same intervention, so there was no separate comparison group inside the trial.
It started in 2020-08-04 with completion listed for 2025-08-14.
It ran at 1 site in United States.
Its stated primary purpose is treatment.
What Was Measured
Researchers chose this as the main measure: Incidence of Treatment Emergent Adverse Events [Safety and Tolerability] (time frame: 12 months). Incidence of Symptomatic Hypotension events [Safety and Tolerability] (time frame: 12 months). Change from Baseline in annualized growth velocity (time frame: 12 months).
It also tracked 3 secondary outcomes, for example Changes in the seated height ratio as a measure of body proportions, Changes in the difference between arm span and height from baseline and Changes from Baseline in bone age/chronological age.
What This Means in Plain Language
Put simply, this is a phase 2 trial of Vosoritide in 56 people.
Its status is active not recruiting; no results are posted to the registry yet, so nothing here describes outcomes.
More context: the Vosoritide compound page, all human trials.
Our Notes on the Compound
Vosoritide: A 39-amino-acid analog of C-type natriuretic peptide (Voxzogo) studied in achondroplasia.
Related Pages
Source: ClinicalTrials.gov record. This explanation is written by PeptideWhiz from the public record. For research and education only. Not medical advice; no dosing information is given.