Study to Evaluate the Efficacy and Safety of BMN 333 Versus Vosoritide in Children With Achondroplasia

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Trial Status Recruiting

Trial Identifier

NCT07441876

Condition

Achondroplasia

The below information is taken directly from public registry websites such as ClinicalTrials.gov, EuClinicalTrials.eu, ISRCTN.com, etc. and has not been edited.

Trial Summary

This is a multicenter, multinational, randomized, active-controlled, operationally seamless Phase 2/3 study of BMN 333 in treatment-naïve pediatric participants with achondroplasia (ACH). The study consists of a Phase 2 part and a Phase 3 part.

Eligibility Criteria

Birth Sex

All

Age

2 Years to 17 Years

Healthy Volunteers

No

Drug/Treatment:

BMN 333, Vosoritide Injection [Voxzogo]

Phase:

Phase 2/Phase 3

Study Type:

Interventional

Number of Participants:

160

Study Started:

2026-04-20

Study Updated:

2026-08-21

Trial Locations

  • UCSF Benioff Children's Hospital Oakland

    Oakland, California, United States

    Trial Status Recruiting

    Contact

    Hind Al-Saif

  • Nemours Children's Health

    Wilmington, Delaware, United States

    Trial Status Not yet recruiting

    Contact

    Mahim Jain

  • Ann & Robert H. Lurie Children's Hospital of Chicago

    Chicago, Illinois, United States

    Trial Status Recruiting

    Contact

    Carlos Prada

  • Johns Hopkins Medicine

    Baltimore, Maryland, United States

    Trial Status Recruiting

    Contact

    Julie Hoover-Fong

  • Cincinnati Children's Hospital Medical Center

    Cincinnati, Ohio, United States

    Trial Status Recruiting

    Contact

    Benjamin Cocanougher

  • Children's Hospital of Philadelphia

    Philadelphia, Pennsylvania, United States

    Trial Status Not yet recruiting

    Contact

    David Weber

  • University of Texas Southwestern Medical Center

    Dallas, Texas, United States

    Trial Status Not yet recruiting

    Contact

    Nadia Merchant

  • Texas Children Hospital, Baylor College of Medicine

    Houston, Texas, United States

    Trial Status Recruiting

    Contact

    Carlos Bacino

  • Consano Clinical Research, LLC

    San Antonio, Texas, United States

    Trial Status Recruiting

    Contact

    Daniel Katselnik

  • Murdoch Children's Research Institute

    Parkville, Victoria, Australia

    Trial Status Recruiting

    Contact

    Ravi Savarirayan

  • Universite de Montreal - Centre Hospitalier Universitaire Sainte-Justine

    Montreal, Quebec, Canada

    Trial Status Not yet recruiting

    Contact

    Philippe Campeau

  • Irccs Ospedale Gaslini Di Genova

    Genova, Italy

    Trial Status Not yet recruiting

    Contact

    Mohamed Maghnie

  • Hokkaido University Hospital

    Hokkaido, Japan

    Trial Status Not yet recruiting

    Contact

    Shuntaro Morikawa

  • Osaka City General Hospital

    Osaka, Japan

    Trial Status Recruiting

    Contact

    Jun Mori

  • National Center for Child Health and Development

    Tokyo, Japan

    Trial Status Recruiting

    Contact

    Kenichi Kashimada

  • Uniwersytecki Szpital Kliniczny im. J. Mikulicza-Radeckiego we Wroclawiu Klinika Pediatrii i Chorob Infekcyjnych

    Wroclaw, Poland

    Trial Status Not yet recruiting

    Contact

    Robert Shanislaw Smigiel

  • Institutul National de Endocrinologie C.I.Parhon

    Bucharest, Romania

    Trial Status Not yet recruiting

    Contact

    Iuliana Gherlan

  • Craiova Emergency Clinical County

    Craiova, Romania

    Trial Status Not yet recruiting

    Contact

    Ioana Streata

  • Seoul National University Hospital

    Seoul, South Korea

    Trial Status Recruiting

    Contact

    Jung Min Ko

  • Pusan National University Yangsan Hospital

    Yangsan, South Korea

    Trial Status Not yet recruiting

    Contact

    Chong-Kun Cheon

  • University Hospitals Bristol NHS Foundation Trust - Bristol Royal Hospital for Children

    Bristol, United Kingdom

    Trial Status Recruiting

    Contact

    Toby Candler

  • Queen Elizabeth University Hospital

    Glasgow, United Kingdom

    Trial Status Recruiting

    Contact

    Helen McDevitt

  • Alder Hey Childrens NHS Foundation Trust

    Liverpool, United Kingdom

    Trial Status Recruiting

    Contact

    Sharanya Ramakrishnan

  • Great Ormond Street Hospital

    London, United Kingdom

    Trial Status Not yet recruiting

    Contact

    Moira Cheung

  • University NHS Foundation Trust NIHR Wellcome Trust Clinical Research Facility

    Manchester, United Kingdom

    Trial Status Recruiting

    Contact

    Mars Skae

Inclusion Criteria

1. Participants must be aged ≥ 2 to < 11 years (Phase 2) or ≥ 2 to < 18 years (Phase 3), at the time of signing the informed consent 2. Participants must have ACH (confirmed by documented genetic testing) and open epiphyses 3. Are Tanner Stage I (Phase 2) or any Tanner stage (Phase 3) 4. Are ambulatory and able to stand without assistance

Exclusion Criteria

1. Have any short stature condition other than ACH (eg, hypochondroplasia, trisomy 21, pseudoachondroplasia, GH deficiency)
2. Have any of the following disorders: Hypothyroidism or hyperthyroidism, unless treated with evidence of normalized thyroid-stimulating hormone (TSH) levels, diabetes mellitus, unless considered well-controlled, autoimmune inflammatory disease, inflammatory bowel disease, autonomic neuropathy, anemia defined as hemoglobin < 10 g/dL, vitamin D deficiency, significant hip pathology. 3. Have history of any renal insufficiency or cardiac/ cardiovascular disease that places the participant at increased risk of an adverse cardiac outcome in the setting of hypotension. 4. Have had bone fractures of the long bones or spine within 6 months prior to screening. 5. Have used vosoritide, any other approved product (except GH, as detailed below), investigational product, or investigational medical device for the treatment of ACH or short stature at any time 6. Have been treated with GH, insulin-like growth factor 1, or anabolic steroids in the 6 months prior to treatment start

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