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Eladocagene Exuparvovec

Phase 2

AADC Deficiency | Gene therapy | Rare Disease |PTC Therapeutics, Inc.|Last Updated: Apr 24, 2026

Target and mechanism

Molecular targetDDC
Target classExogenous Gene
ModalityGene therapy

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMC
Total Trials1
Total Enrollment13

FDA Designations

No designations recorded

Clinical trial landscape

Eladocagene Exuparvovec · 1 trial · 1 indication

Phase 2 1
NCT04903288A Study of SmartFlow Magnetic Resonance (MR) Compatible Ventricular Cannula for Administering Eladocagene Exuparvovec to Pediatric ParticipantsAADC Deficiency
ACTIVE NOT_RECRUITING13 Analytics
PHASE2ACTIVE NOT_RECRUITING
A Study of SmartFlow Magnetic Resonance (MR) Compatible Ventricular Cannula for Administering Eladocagene Exuparvovec to Pediatric Participants
AADC DeficiencyUnlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline in HVA Metabolite Level at the End of the Trial Phase
Baseline (Day 1), Week 8

HVA is a main metabolite of dopamine and HVA CSF levels are recognized as a proxy for dopamine levels in the brain.

Number of Participants With Adverse Events (AEs) Associated With the Surgical Administration of Eladocagene Exuparvovec Using the SmartFlow® MR-Compatible Ventricular Cannula
Baseline (Day 1) up to Week 8

An AE is any untoward medical occurrence associated with the use of a drug in humans, whether or not it is considered related to the drug. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease in a study participant who was administered gene therapy in this study. Number of participants with AEs related to the SmartFlow MR-compatible ventricular cannula used to administer eladocagene exuparvovec to pediatric participants at the end of Trial Phase (8 weeks after administration) are reported. A summary of serious and all other non-serious adverse events regardless of causality is located in the Reported Adverse Events module."

Secondary Endpoints

Change From Baseline in Neurotransmitter Cerebrospinal Fluid (CSF) Metabolite HVA at Week 48
Baseline (Day 1), Week 48
Change From Baseline in Positron Emission Tomography (PET) Imaging of Putaminal-Specific L-6-[18F] Fluoro-3,4-Dihydroxyphenylalnine (18F-DOPA) PET Uptake at the End of the Trial Phase (Week 8) and the Extension Phase (Week 48)
Baseline (Day 1), Week 8, Week 48
Change From Baseline in Neurotransmitter CSF Metabolites 5-hydroxyindoleacetic Acid (5-HIAA), and 3-O-methyldopa (3-OMD) at Weeks 8 and 48
Baseline (Day 1), Weeks 8 and 48
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Eladocagene ExuparvovecEXPERIMENTALParticipants will receive eladocagene exuparvovec intraoperatively at 1.8×10\^11 vector genomes (vg) via SmartFlow® MR Compatible Ventricular Cannula in a single operative session. Participants will receive standard of care for their AADC deficiency during the study.

Interventions

NameTypeDescription
Eladocagene ExuparvovecGENETICFour 0.08 milliliters (mL) infusions at a dose of 0.45×10\^11 vg and a volume of 80 microliters (μl) per site to 4 sites (2 per putamen), for the total dose of 1.8×10\^11 vg and a total volume of 320 μl per participant.
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Eligibility Criteria

Age Range1 Year to 17 Years
SexALL
Healthy VolunteersNo
Study Sites6

Inclusion Criteria: * Pediatric participants must have genetically-confirmed AADC deficiency with typical clinical characteristics and decreased AADC enzyme activity in plasma. * Cranium sufficiently developed to allow placement of ClearPoint® system for stereotactic surgery. * Persistent neurologi...

Countries:United StatesIsraelTaiwan
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Frequently asked questions about Eladocagene Exuparvovec

What is Eladocagene Exuparvovec used for?

Eladocagene Exuparvovec is an investigational gene therapy being developed for the treatment of AADC deficiency, a rare genetic disorder. It is currently in Phase 2 clinical development and has not been approved by regulatory authorities.

What does Eladocagene Exuparvovec target?

Eladocagene Exuparvovec is a gene therapy that belongs to the gene therapy class of treatments. It is designed to address the underlying genetic cause of AADC deficiency by delivering a functional gene to affected cells.

Who is developing Eladocagene Exuparvovec?

Eladocagene Exuparvovec is being developed by PTC Therapeutics, Inc., a biopharmaceutical company. The company is conducting clinical trials to evaluate the safety and efficacy of this investigational gene therapy for AADC deficiency.

What phase is Eladocagene Exuparvovec in?

Eladocagene Exuparvovec is currently in Phase 2 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory agencies and is still being studied in clinical trials.

What clinical trials is Eladocagene Exuparvovec in?

Eladocagene Exuparvovec is being studied in a Phase 2 clinical trial identified as NCT04903288. This trial is evaluating the use of a SmartFlow Magnetic Resonance compatible ventricular cannula for administering the drug to pediatric participants with AADC deficiency.

Is Eladocagene Exuparvovec the same as any other drug?

Eladocagene Exuparvovec is a distinct investigational gene therapy developed by PTC Therapeutics. It is not known to be the same as any other approved or marketed drug, and it is being studied specifically for AADC deficiency.