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BMN 333

Phase 2

Achondroplasia | Small molecule | Other |BioMarin Pharmaceutical Inc.|Last Updated: May 29, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment160
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07441876Study to Evaluate the Efficacy and Safety of BMN 333 Versus Vosoritide in Children With AchondroplasiaPHASE2 RECRUITING 160Apr 1, 2026Sep 1, 2029May 29, 202610 United States, Australia +4
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Study Endpoints
Primary Endpoints
Phase 2: Predicted Annualized Growth Velocity (AGV) at Week 52 (based on AGV at Weeks 26, 39, and 52 [available cumulative data]
52 weeks
Phase 3: Annualized Growth Velocity (AGV) at Week 52
52 weeks
Secondary Endpoints
Phase 2: AGV at Weeks 26 and 52
26 and 52 weeks
Phase 2: Change from Baseline in standing height
26 and 52 weeks
Phase 2: Change from Baseline in height Z-score
26 and 52 weeks
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Study Design & Arms
AllocationRANDOMIZED
MaskingSINGLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Phase 2: Low DoseEXPERIMENTALParticipants will be randomized to receive different dose levels of BMN 333
Phase 2: Medium DoseEXPERIMENTALParticipants will be randomized to receive different dose levels of BMN 333
Phase 2: High DoseEXPERIMENTALParticipants will be randomized to receive different dose levels of BMN 333
Phase 2: VosoritideACTIVE_COMPARATORweight band dosing, Modified recombinant human C-type natriuretic peptide Vosoritide
Phase 3: BMN 333 at selected dose after Phase 2EXPERIMENTAL -
Phase 3: VosoritideACTIVE_COMPARATORweight band dosing, Modified recombinant human C-type natriuretic peptide Vosoritide
Interventions
NameTypeDescription
BMN 333DRUGAdministration: Weekly subcutaneous injection
Vosoritide Injection [Voxzogo]DRUGAdministration: Daily subcutaneous injection
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Eligibility Criteria
Age Range2 Years — 17 Years
SexALL
Healthy VolunteersNo
Study Sites10

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 (...

Countries:United StatesAustraliaItalyRomaniaSouth KoreaUnited Kingdom
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Recent Changes (Last 90 Days)
LOWMay 29, 2026NCT07441876lastUpdatePostDate: changed
LOWMay 29, 2026NCT07441876lastUpdatePostDate: changed
LOWMay 29, 2026NCT07441876lastUpdatePostDate: changed
LOWMay 26, 2026NCT07441876Status: NOT_YET_RECRUITING → RECRUITING
LOWMay 24, 2026NCT07441876studyFirstPostDate: changed