Observational study of achondroplasia in the US

VIrtual STudy in Achondroplasia for the US (VISTA)

BioMarin Pharmaceutical · NCT06168201

This study looks at children in the U.S. with achondroplasia to see how they are doing with and without the treatment VOXZOGO™ over at least five years.

Quick facts

Study typeObservational
Enrollment170 (estimated)
Ages0 Months to 18 Years
SexAll
SponsorBioMarin Pharmaceutical (industry)
Locations7 sites (Oakland, California and 6 other locations)
Trial IDNCT06168201 on ClinicalTrials.gov

What this trial studies

This observational study focuses on individuals with achondroplasia in the United States, particularly pediatric patients treated and untreated with VOXZOGO™. It aims to collect data over a minimum of five years through participant-mediated access to electronic health records and clinical outcome assessments. The study will gather both retrospective and prospective data to reflect real-life treatment use and clinical care. Enrollment began in February 2023, and the study may be extended based on sponsor decisions.

Who should consider this trial

Good fit: Ideal candidates include individuals diagnosed with achondroplasia, aged 13 years or younger, receiving medical care in the United States.

Not a fit: Patients without any medical records will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into the real-world effectiveness and safety of treatments for achondroplasia.

How similar studies have performed: While this study is observational, similar studies have shown success in understanding treatment impacts in rare conditions, making this approach promising.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Physician diagnosis of achondroplasia
* Age at time of enrollment:

Primary Pediatric Cohort: ≤13 years old Secondary Adolescent and Adult Cohort: ≥14 years old

* Receiving medical care in the United States
* Complete PicnicHealth's onboarding process, including signing informed consent and authorization for medical record retrieval

Exclusion Criteria:

* Lack of any medical records

Where this trial is running

Oakland, California and 6 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Achondroplasia

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.