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4D-310

Phase 1

Fabry Disease | Monoclonal antibody | Metabolic |4D Molecular Therapeutics, Inc.|Last Updated: Feb 21, 2025

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
CONTROLLEDBiomarker
Total Trials2
Total Enrollment36
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT056295594D-310 in Adults With Fabry Disease and Cardiac InvolvementPHASE1 RECRUITING 18Oct 16, 2022Jun 1, 2030Feb 21, 20254 Australia, Taiwan
NCT04519749An Open-label, Phase 1/2 Trial of Gene Therapy 4D-310 in Adults With Fabry DiseasePHASE1 ACTIVE NOT_RECRUITING 18Sep 1, 2020Jun 1, 2030Apr 8, 20244 United States
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Study Endpoints
Primary Endpoints
Incidence and severity of adverse events
1 year

Incidence and severity of adverse events following a single IV dose of 4D-310intravenous (IV) dose

Secondary Endpoints
Change from baseline in serum AGA activity
1 year
Change from baseline serum globotriaosylsphingosine (lysoGb3)
1 year
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
4D-310 Dose Level -1EXPERIMENTALSingle IV administration of 4D-310 Dose Level -1
4D-310 Dose Level 2EXPERIMENTALSingle IV administration of 4D-310 Dose Level 2
4D-310 Dose Level 3EXPERIMENTALSingle IV administration of 4D-310 at Dose Level 3
4D-310 Dose Level 1 (No longer enrolling)EXPERIMENTALNo longer enrolling - Single IV administration of 4D-310 at Dose Level 1
4D-310 Dose Level 1 - AAV Neutralizing Antibody (NAb) Group AEXPERIMENTALSingle IV administration of 4D-310 Dose Level 1 - AAV NAb Titer Group A patients
4D-310 Dose Level 1 - AAV NAb Titer Group BEXPERIMENTALSingle IV administration of 4D-310 Dose Level 1 - AAV NAb titer Group B patients
4D-310 Dose Level 2 - AAV NAb Titer Group A and/or BEXPERIMENTALSingle IV administration of 4D-310 at Dose Level 2 in AAV NAb titer Group A and/or B patients
4D-310 Dose ExpansionEXPERIMENTALDose expansion cohort of single IV administration of 4D-310 at the selected dose and selected AAV Nab titer group(s) patients
Interventions
NameTypeDescription
4D-310BIOLOGICALSingle IV administration of 4D-310
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersNo
Study Sites4

Inclusion Criteria: 1. Male or female ≥ 18 to ≤65 years of age 2. Pathogenic GLA mutation consistent with Fabry Disease 3. Confirmed diagnosis of classic or late-onset Fabry disease with cardiac involvement 4. Intolerant of ERT, unable or unwilling to receive ERT, or progressive disease despite ERT...

Countries:AustraliaTaiwanUnited States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT05629559primaryCompletionDate: changed
LOWMay 26, 2026NCT04519749primaryCompletionDate: changed
LOWMay 24, 2026NCT05629559studyFirstPostDate: changed
LOWMay 24, 2026NCT04519749studyFirstPostDate: changed