A Study of Vosoritide Versus Placebo in Children With Hypochondroplasia Aged 0 to < 36 Months

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age0-36
SponsorBioMarin Pharmaceutical

About this trial

The purpose of this study is to evaluate the safety and efficacy of daily administration of vosoritide in participants with HCH aged 0 to \< 36 months over a 52-week period.

Eligibility criteria

Qualifiers

Participants must be 0 to < 36 months of age at randomization.

Participants must have a confirmed genetic diagnosis of HCH (obtained via whole genome sequencing; presence of a FGFR3 pathogenic variant associated with HCH).

Participants aged 0 to < 12 months must have a height Z-score of ≤ -1.0 SDS andparticipants aged ≥ 12 to < 36 months must have a height Z-score of ≤ -2.0 SDS in reference to the average stature of the same sex and age, as calculated using the Center for Disease Control and Prevention (CDC) growth charts.

Participant's weight at the Day 1 visit (pre-treatment) must be ≥ 3 kg.

Disqualifiers

Short stature condition other than HCH (eg, ACH, trisomy 21, pseudoachondroplasia).

Have an unstable medical condition likely to require surgical intervention during the study period.

Taking any of the prohibited medications.

Have been treated with growth hormone, insulin-like growth factor 1 (IGF-1), or anabolic steroids in the 6 months prior to Screening, or long-term treatment (> 3 months) at any time.

Trial design

Treatments tested in this trial

  • Vosoritide
  • Placebo

Treatment groups

60 Participants
are divided into 2 treatment groups

Sponsors and collaborators

BioMarin Pharmaceutical

Lead sponsor

ICON Clinical Research

Collaborator