Register a trial

Please note the ANZCTR will be unattended from Friday 20 December 2024 for the holidays. The Registry will re-open on Tuesday 7 January 2025. Submissions and updates will not be processed during that time.

Registering a new trial?

To achieve prospective registration, we recommend submitting your trial for registration at the same time as ethics submission.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT06455059




Registration number
NCT06455059
Ethics application status
Date submitted
7/06/2024
Date registered
12/06/2024

Titles & IDs
Public title
Interventional Study of Vosoritide for the Treatment of Children With Hypochondroplasia
Scientific title
A Phase 3, Randomized, Double-Blind, Placebo-Controlled, Multicenter Study to Evaluate the Efficacy and Safety of Vosoritide in Children With Hypochondroplasia
Secondary ID [1] 0 0
111-303
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Hypochondroplasia 0 0
Condition category
Condition code
Musculoskeletal 0 0 0 0
Other muscular and skeletal disorders
Metabolic and Endocrine 0 0 0 0
Other endocrine disorders
Human Genetics and Inherited Disorders 0 0 0 0
Other human genetics and inherited disorders
Musculoskeletal 0 0 0 0
Normal musculoskeletal and cartilage development and function
Reproductive Health and Childbirth 0 0 0 0
Complications of newborn

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - Vosoritide
Treatment: Drugs - Placebo

Experimental: vosoritide injection with vial and syringe -

Placebo comparator: Placebo injection with vial and syringe -


Treatment: Drugs: Vosoritide
Subcutaneous injection of recommended dose of vosoritide based on weight-band dosing once daily.

Treatment: Drugs: Placebo
Subcutaneous injection of recommended dose of placebo
Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Change from baseline in annualized growth velocity (AGV) at Week 52 versus placebo
Timepoint [1] 0 0
At week 52
Secondary outcome [1] 0 0
Change from baseline in standing height at Week 52 versus placebo
Timepoint [1] 0 0
At week 52
Secondary outcome [2] 0 0
Change from baseline in height Z-score at Week 52 versus placebo
Timepoint [2] 0 0
At week 52

Eligibility
Key inclusion criteria
1. Participants must be = 3 to < 18 years of age at enrollment
2. A confirmed genetic diagnosis of HCH
3. A height Z score of = - 2.0 standard deviations (SDs) in reference to the general population of the same age and sex, as calculated using the Center for Disease Control and Prevention (CDC) growth charts
4. Males and females are eligible to participate in this clinical study.
5. Females = 10 years old or who have begun menses must have a negative pregnancy test at the Screening Visit and be willing to have additional pregnancy tests during the study.
6. If sexually active, participants must be willing to use a highly effective method of contraception while participating in the study.
Minimum age
3 Years
Maximum age
17 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
1. Short stature condition other than HCH
2. Have an unstable condition likely to require surgical intervention during the study.
3. Evidence of decreased growth velocity and/or growth plate closure
4. Taking any of the prohibited medications
5. Treated with growth hormone, insulin-like growth factor 1 (IGF-1), or anabolic steroids
6. Planned or expected to have limb-lengthening surgery during the study period.
7. Planned or expected bone-related surgery (ie, surgery involving disruption of bone cortex, excluding tooth extraction), during the study period
8. Require any investigational agent prior to completion of study period.
9. Received vosoritide or another investigational product or investigational medical device in the past
10. Have used any investigational product or investigational medical device for the treatment of HCH or short stature at any time, including vosoritide
11. Have current malignancy, history of malignancy, or currently under work-up for suspected malignancy.
12. Have known hypersensitivity to vosoritide or its excipients.
13. Concurrent disease or condition that, in the view of the investigator, would interfere with study participation or safety evaluations, for any reason.

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Single group
Other design features
Phase
Phase 3
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
1/06/2024
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
1/08/2026
Actual
Sample size
Target
80
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
VIC
Recruitment hospital [1] 0 0
Murdoch Children's Research Institute - Parkville
Recruitment postcode(s) [1] 0 0
3052 - Parkville
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
District of Columbia

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
BioMarin Pharmaceutical
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Medical Director, MD
Address 0 0
BioMarin Pharmaceutical
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
No/undecided IPD sharing reason/comment


What supporting documents are/will be available?

No Supporting Document Provided



Results publications and other study-related documents

No documents have been uploaded by study researchers.


Results not provided in https://clinicaltrials.gov/study/NCT06455059