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4D-125 IVT

Phase 1

X-Linked Retinitis Pigmentosa | Monoclonal antibody | Rare Disease |4D Molecular Therapeutics, Inc.|Last Updated: Mar 21, 2025

Target and mechanism

ModalityMonoclonal antibody

Also known as 4D-125 IVT Injection

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment21

FDA Designations

No designations recorded

Clinical trial landscape

4D-125 IVT · 1 trial · 1 indication

Phase 1 1
NCT045171494D-125 in Patients With X-Linked Retinitis Pigmentosa (XLRP)X-Linked Retinitis Pigmentosa
ACTIVE NOT_RECRUITING21 Analytics
PHASE1ACTIVE NOT_RECRUITING
4D-125 in Patients With X-Linked Retinitis Pigmentosa (XLRP)
X-Linked Retinitis PigmentosaUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence and severity of TEAEs and serious adverse events (SAEs), including clinically significant changes in safety parameters
24 months to 60 Months
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
4D-125 Dose ExplorationEXPERIMENTALDose 1 and Dose 2 4D-125 will be administered at the assigned dose level as a single dose, IVT injection on Day 1. The contralateral eye may also be dosed with 4D-125 as a single dose, IVT injection provided the subject is eligible and provides consent.
4D-125 Dose ExpansionEXPERIMENTAL4D-125 will be administered at the assigned dose level as a single dose, IVT injection on Day 1 in both adults and pediatric participants. For adult participants only, the contralateral eye may also be dosed with 4D-125 as a single dose, IVT injection provided the subject is eligible and provides consent.
ObservationalOTHERNatural History

Interventions

NameTypeDescription
4D-125 IVT InjectionBIOLOGICAL4D-125 drug product developed for gene therapy, which comprises an AAV capsid variant (4D-R100) carrying a codon-optimized human Retinitis Pigmentosa GTPase Regulator transgene.
ObservationalOTHERNatural History
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Eligibility Criteria

Age Range12 Years to N/A
SexMALE
Healthy VolunteersNo
Study Sites8

Natural History Key Inclusion Criteria: * Male, ≥ 6 years of age at the time of informed consent * Hemizygous non-syndromic RPGR mutation confirmed by genetic testing Interventional Key Inclusion Criteria: * Male, ≥12 years of age * Hemizygous non-syndromic RPGR mutation confirmed by genetic test...

Countries:United States
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Frequently asked questions about 4D-125 IVT

What is 4D-125 IVT used for?

4D-125 IVT is an investigational therapy being developed for the treatment of X-Linked Retinitis Pigmentosa, a rare inherited retinal disease that primarily affects males. It is administered via intravitreal injection and is currently in Phase 1 clinical development.

What does 4D-125 IVT target?

4D-125 IVT is a monoclonal antibody designed for intravitreal delivery. It is being studied for its potential to address the underlying causes of X-Linked Retinitis Pigmentosa, though the specific molecular target has not been disclosed in available information.

Who makes 4D-125 IVT?

4D-125 IVT is being developed by 4D Molecular Therapeutics, Inc., a biopharmaceutical company listed on the NASDAQ under the ticker symbol FDMT. The company is focused on developing targeted therapies for rare diseases.

What phase is 4D-125 IVT in?

4D-125 IVT is currently in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. The ongoing Phase 1 trial is active but not recruiting participants.

What clinical trials is 4D-125 IVT in?

4D-125 IVT is being evaluated in a Phase 1 clinical trial with the identifier NCT04517149. This trial is studying the drug in patients with X-Linked Retinitis Pigmentosa in the United States, with an enrollment of 21 male participants aged 12 years and older.

Is 4D-125 IVT the same as 4D-125 IVT Injection?

Yes, 4D-125 IVT is also known as 4D-125 IVT Injection. Both names refer to the same investigational drug product being developed by 4D Molecular Therapeutics for the treatment of X-Linked Retinitis Pigmentosa.