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A Clinical Trial to Evaluate Safety of Vosoritide in At-risk Infants With Achondroplasia

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ClinicalTrials.gov Identifier: NCT04554940
Recruitment Status : Active, not recruiting
First Posted : September 18, 2020
Last Update Posted : July 28, 2022
Information provided by (Responsible Party):
BioMarin Pharmaceutical

Tracking Information
First Submitted Date  ICMJE September 14, 2020
First Posted Date  ICMJE September 18, 2020
Last Update Posted Date July 28, 2022
Actual Study Start Date  ICMJE October 10, 2020
Estimated Primary Completion Date December 2026   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: September 17, 2020)
Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability] [ Time Frame: Through Week 260 ]
Original Primary Outcome Measures  ICMJE Same as current
Change History
Current Secondary Outcome Measures  ICMJE
 (submitted: September 17, 2020)
Evaluate the effect of Vosoritide on total foramen magnum volume (in cm3) by MRI volumetric measurement software [ Time Frame: Through Week 260 ]
Original Secondary Outcome Measures  ICMJE Same as current
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
Descriptive Information
Brief Title  ICMJE A Clinical Trial to Evaluate Safety of Vosoritide in At-risk Infants With Achondroplasia
Official Title  ICMJE A Randomized, Controlled, Open-label Clinical Trial With an Open-label Extension to Investigate the Safety of Vosoritide in Infants and Young Children With Achondroplasia at Risk of Requiring Cervicomedullary Decompression Surgery
Brief Summary Study 111-209 is a Phase 2 randomized, open-label clinical trial of BMN 111 in infants and young children with a diagnosis of Achondroplasia at a heightened risk of requiring cervicomedullary decompression surgery
Detailed Description Not Provided
Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 2
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Condition  ICMJE Achondroplasia
Intervention  ICMJE Biological: vosoritide
Subcutaneous injection of recommended dose of BMN 111 based on weight-band dosing once daily.
Study Arms  ICMJE
  • Experimental: Vosoritide + Standard of Care
    Standard of Care treatment for cervicomedullary compression and once daily subcutaneous injection of recommended dose of vosoritide based on weight-band dosing.
    Intervention: Biological: vosoritide
  • No Intervention: Standard of Care Alone
    Institutional standard of care monitoring and treatment for cervicomedullary compression
Publications * Savarirayan R, Irving M, Maixner W, Thompson D, Offiah AC, Connolly DJ, Raghavan A, Powell J, Kronhardt M, Jeha G, Ghani S, Fisheleva E, Day JR. Rationale, design, and methods of a randomized, controlled, open-label clinical trial with open-label extension to investigate the safety of vosoritide in infants, and young children with achondroplasia at risk of requiring cervicomedullary decompression surgery. Sci Prog. 2021 Jan-Mar;104(1):368504211003782. doi: 10.1177/00368504211003782.

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
Recruitment Information
Recruitment Status  ICMJE Active, not recruiting
Actual Enrollment  ICMJE
 (submitted: September 17, 2020)
Original Estimated Enrollment  ICMJE Same as current
Estimated Study Completion Date  ICMJE December 2026
Estimated Primary Completion Date December 2026   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • Parent(s) or guardian(s) willing and able to provide signed informed consent after the nature of the study has been explained and prior to performance of any research related procedure.
  • Have ACH, documented by genetic testing.
  • Are willing and able to perform all study procedures as physically possible.
  • Age 0 to ≤ 12 months, at study entry (Day 1). Given that any potential impact of vosoritide therapy on the foramen magnum is dependent on treating as early as possible and as long as possible while the synchondroses at the base of the skull are still open. For subjects > 6 months of age at enrollment, a discussion between the investigator and the Medical Monitor should occur with the goal of limiting the number of subjects in the range of > 6 months to ≤ 12 months of age.
  • Parent(s) or caregiver(s) are willing to administer daily injections to the subject and complete the required training.
  • Have evidence of CMC that "may" require surgical intervention

Exclusion Criteria:

  • Have hypochondroplasia or short-stature condition other than achondroplasia (eg, trisomy 21, pseudoachondroplasia, etc).
  • Have CMC that either does not require surgical intervention (for example foramen magnum narrowing with preservation of the cerebrospinal fluid space) or does require immediate surgical intervention .
  • Have any of the following: Untreated congenital hypothyroidism or maternal history of hyperthyroidism, Insulin-requiring neonatal diabetes mellitus, Autoimmune inflammatory disease, Inflammatory bowel disease, Autonomic neuropathy.
  • Have a history of any of the following:Renal insufficiency, Chronic anemia,Baseline systolic blood pressure below age and gender specified normal range or recurrent symptomatic hypotension (defined as episodes of low blood pressure generally accompanied by symptoms eg, pallor, cyanosis, irritability, poor feeding) and Cardiac or vascular disease.
  • Have a clinically significant finding or arrhythmia that indicates abnormal cardiac function or conduction or QTc-F ≥ 450 msec on screening ECG.
  • Have been treated with growth hormone, insulin-like growth factor 1, or anabolic steroids in the 6 months prior to Screening, or long-term treatment (> 3 months) at any time.
  • Have ever had prior cervicomedullary decompression surgery.
  • Have had a fracture of the long bones or spine within 6 months prior to Screening.
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 0 Months to 12 Months   (Child)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Australia,   United Kingdom
Removed Location Countries  
Administrative Information
NCT Number  ICMJE NCT04554940
Other Study ID Numbers  ICMJE 111-209
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Product Manufactured in and Exported from the U.S.: Yes
IPD Sharing Statement  ICMJE Not Provided
Current Responsible Party BioMarin Pharmaceutical
Original Responsible Party Same as current
Current Study Sponsor  ICMJE BioMarin Pharmaceutical
Original Study Sponsor  ICMJE Same as current
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Study Director: Medical Director, MD BioMarin Pharmaceutical
PRS Account BioMarin Pharmaceutical
Verification Date July 2022

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP