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Peptide

Vosoritide (Voxzogo)

Vosoritide is a 39-amino acid C-type natriuretic peptide (CNP) analog for achondroplasia. FDA-approved November 2021 - first pharmacological treatment for achondroplasia. Phase 3 trial (n=121): Significant increase in annualized growth velocity vs placebo at 52 weeks. Daily SC injection promotes endochondral bone growth by antagonizing FGFR3 downstream signaling. Approved for children 5+ years with open epiphyses.

Research notice. This page is for education and research. Peptides may not be FDA-approved for human use and may only be legally available for research. Talk to a qualified clinician before considering any peptide.

Best evidence
Grade A
Conditions studied
1
Outcomes
6
Graded outcomes
3102

Evidence by condition

  • Strong
  • Moderate
  • Limited
  • Very limited

1 condition, plus general outcomes

Achondroplasia: outcomes studied for Vosoritide (Voxzogo)
GradeOutcomeEffectSizeStudiesPeopleStudies list
Annualized Growth Velocity

Phase 3 trial (n=121, ages 5-14): Vosoritide significantly increased annualized growth velocity vs placebo at 52 weeks. First disease-modifying treatment for achondroplasia. Led to FDA accelerated approval Nov 2021.

Improves (the measure goes up)Moderate effect16 studies

Studies that measured annualized growth velocity

and 6 more in the citations list

Height Z-Score Improvement

Phase 3 trial: Significant improvement in height Z-scores vs placebo over 52 weeks. Increases in growth velocity sustained over treatment period. EMA approved for ages 2+ with open epiphyses.

Improves (the measure goes up)Moderate effect14 studies

Studies that measured height z-score improvement

and 4 more in the citations list

Safety and Tolerability

Phase 3 trial: Well tolerated with manageable adverse events. Most common: injection site reactions, transient blood pressure decreases. No serious safety signals. Approved via accelerated pathway.

Improves (the measure goes up)Moderate effect14 studies

Studies that measured safety and tolerability

and 4 more in the citations list

Long-Term Growth (Extension)

Open-label extension studies: Sustained growth velocity improvements over multiple years of treatment. Real-world data from multiple centers confirms efficacy. Treatment continues until epiphyseal closure.

Improves (the measure goes up)Moderate effect17 studies

Studies that measured long-term growth (extension)

and 7 more in the citations list

General

General: outcomes studied for Vosoritide (Voxzogo)
GradeOutcomeEffectSizeStudiesPeopleStudies list
Anti-Aging

2 preclinical studies support this finding. Primarily preclinical evidence.

Improves (the measure goes up)Small effect14 studies

Studies that measured anti-aging

and 4 more in the citations list

Hormone Levels

2 preclinical studies support this finding. Primarily preclinical evidence.

Improves (the measure goes up)Small effect14 studies

Studies that measured hormone levels

and 4 more in the citations list

Key findings

  • Annualized Growth VelocityAchondroplasiaImproves (the measure goes up)
  • Height Z-Score ImprovementAchondroplasiaImproves (the measure goes up)
  • Safety and TolerabilityAchondroplasiaImproves (the measure goes up)

Safety notes in the studies

  • Phase 3 trial: Well tolerated with manageable adverse events.

Studies cited

26 studies from PubMed

  1. Real-world safety and age-dependent effectiveness of vosoritide in achondroplasia: A single-center retrospective analysis of transition from growth hormone to vosoritide.Bone, 2026 · PMID 41232919
  2. Exploring adverse events associated with vosoritide monotherapy: Insights from the FDA Adverse Event Reporting System.PloS one, 2026 · PMID 41610120
  3. Phase 2 Trial of Vosoritide Use in Patients with Hypochondroplasia: A Pharmacokinetic/Pharmacodynamic Analysis.Hormone research in paediatrics, 2026 · PMID 39427650
  4. Real-World Safety and Effectiveness of Vosoritide in Children with Achondroplasia: French Early Access Program.Hormone research in paediatrics, 2025 · PMID 39864410
  5. Real-World Safety and Effectiveness of Vosoritide in Achondroplasia: Results from a Single Center in Portugal.Advances in therapy, 2025 · PMID 40471380
  6. Three-dimensional craniofacial imaging in children with achondroplasia treated with vosoritide.Genetics in medicine open, 2025 · PMID 41340868
  7. Effect of Vosoritide therapy on IGF-I and Endogenous C-type Natriuretic Peptide in Hypochondroplasia.The Journal of clinical endocrinology and metabolism, 2025 · PMID 41157964
  8. Sustained growth-promoting effects of vosoritide in children with achondroplasia from an ongoing phase 3 extension study.Med (New York, N.Y.), 2025 · PMID 39740666
  9. [An update review of advances in the treatment of achondroplasia].Zhonghua er ke za zhi = Chinese journal of pediatrics, 2025 · PMID 40518168
  10. Sleep-disordered breathing in children with achondroplasia assessed by polysomnography: a retrospective chart review.Archives of disease in childhood, 2025 · PMID 40675782
  11. Vosoritide (Voxzogo) for Achondroplasia: A Review of Clinical and Real-World Evidence.Cureus, 2025 · PMID 40821249
  12. Real-world outcomes of vosoritide in achondroplasia: A systematic review and meta-analysis of multinational clinical evidence.Genetics in medicine : official journal of the American College of Medical Genetics, 2025 · PMID 41424367
  13. Two Cases of Cardiovascular Adverse Events Following Subcutaneous Vosoritide Injection in Early Infancy.Cureus, 2024 · PMID 38841012
  14. Progress in managing children with achondroplasia.Expert review of endocrinology & metabolism, 2024 · PMID 39132812
  15. Vosoritide therapy in children with achondroplasia aged 3-59 months: a multinational, randomised, double-blind, placebo-controlled, phase 2 trial.The Lancet. Child & adolescent health, 2024 · PMID 37984383
  16. Clinical outcomes and medical management of achondroplasia in Japanese children: A retrospective medical record review of clinical data.American journal of medical genetics. Part A, 2024 · PMID 38554024
  17. Vosoritide treatment for children with hypochondroplasia: a phase 2 trial.EClinicalMedicine, 2024 · PMID 38813446
  18. Assessment of the efficacy of vosoritide therapy in children with achondroplasia in clinical trials.Translational pediatrics, 2024 · PMID 39399715
  19. Burden and Treatment of Achondroplasia: A Systematic Literature Review.Advances in therapy, 2023 · PMID 37382866
  20. Literature review and expert opinion on the impact of achondroplasia on medical complications and health-related quality of life and expectations for long-term impact of vosoritide: a modified Delphi study.Orphanet journal of rare diseases, 2022 · PMID 35698202
  21. 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.Science progress, 2021 · PMID 33761804
  22. Advantages and Disadvantages of Different Treatment Methods in Achondroplasia: A Review.International journal of molecular sciences, 2021 · PMID 34070375
  23. Safe and persistent growth-promoting effects of vosoritide in children with achondroplasia: 2-year results from an open-label, phase 3 extension study.Genetics in medicine : official journal of the American College of Medical Genetics, 2021 · PMID 34341520
  24. Once-daily, subcutaneous vosoritide therapy in children with achondroplasia: a randomised, double-blind, phase 3, placebo-controlled, multicentre trial.Lancet (London, England), 2020 · PMID 32891212
  25. C-Type Natriuretic Peptide Analogue Therapy in Children with AchondroplasiaN Engl J Med, 2019 · PMID 31269546
  26. Evaluation of the therapeutic potential of a CNP analog in a Fgfr3 mouse model recapitulating achondroplasiaAm J Hum Genet, 2012 · PMID 23200862