Clinical Trials

NCL SubtypeSponsorInterventionStatusLink to Trial Info
CLN1JCR PharmaceuticalsAGT-194 enzyme replacement IVInvestigator-led study – 1 patient treated (Germany). Study no longer active. R&D actively continues into J-Brain Cargo® for treatment of NCLs and other rare CNS diseases.

Seeking to initiate collaborative CLN1 natural history study.
CLN1Taysha Gene Therapies/Rush University Medical CenterTSH-118 Gene therapy (AAV9; CNS)Ph 1/2 paused (since early 2022)
Continuing to explore partnership opportunities

Single patient dosed under investigator-initiated study at Rush University Medical Center, Chicago IL. Joint Statement to the Global Batten Disease Community (Feb. 2024).
For information on the ongoing Investigator-initiated study, contact Rush University Medical Center, a Batten Disease Clinical Center of Excellence Affiliate: https://bdsrafoundation.org/batten-disease-centers-of-excellence/
CLN2BioMarinCerliponase alfa - enzyme replacement; CNSNCT04476862 Ph 4 -Observational/safety, ongoing (USA)https://clinicaltrials.gov/study/NCT04476862
CLN2BioMarinCerliponase alfa - OcularNCT05152914 Ph 1/2 - Active, not recruiting (USA)https://clinicaltrials.gov/study/NCT05152914
CLN2Latus BioLTS-101 Gene therapy (AAV-Ep+ capsid; CNS)Latus Bio Announces IND Clearance of LTS-101 for CLN2 Disease and Receipt of Fast Track, Orphan Drug, and Rare Pediatric Disease Designations (December 2, 2025)https://www.latusbio.com/
CLN2Tern TherapeuticsTTX-381 Gene therapy (AAV9; ocular)U.K. MHRA Awards Tern Therapeutics Innovation Passport for TTX-381 to Accelerate Gene Therapy for the Treatment of the Ocular Manifestations of CLN2 Disease (July 2025)

Tern Therapeutics chosen for US FDA CDRP Program to accelerate TTX-381 CLN2 ocular gene therapy (December 2025)
https://www.terntx.com/
CLN2Tern TherapeuticsTTX-181 Gene therapy (AAV9; CNS)https://www.terntx.com/
CLN3University of North Carolina (UNC) Hospitals/ForeBatten FoundationFBF-001 (Zebronkysen); Antisense Oligonucleotide (ASO)N-of-2 study currently active. (Commenced Sept. 2024)

One-Year Update (July 2025)
CLN3Alcyone TherapeuticsCLN-301 Gene therapy (AAV9; CNS)Formerly licenced to Amicus Therapeutics (until February 2024).

*APRIL 2025 UPDATE* Alcyone Therapeutics Advances Pipeline for CLN-301 Gene Therapy for CLN3 Batten Disease
https://clinicaltrials.gov/study/NCT03770572
CLN3Beyond Batten Disease Foundation/TheranexusBatten-1 (miglustat)NCT05174039 Ph 1/2 - complete (USA)

THX Pharma and BBDF announce almost €8mn capital increase to advance Batten-1 program for CLN3 disease (December 2025)

Theranexus and BBDF Share Strong Positive Real-World Data Supporting Batten-1 Efficacy for the Treatment of CLN3 Disease (May 2025)
https://clinicaltrials.gov/study/NCT05174039
CLN3Polaryx TherapeuticsPLX-200 (gemfibrozil)NCT04637282 Ph 3 - not yet recruiting
(no movement since Nov 2020) - No update at this time
https://clinicaltrials.gov/study/NCT04637282
CLN5NeurogeneNGN-101 Gene therapy (AAV9; CNS & ocular)NCT05228145 Ph 1/2 Active; not recruiting (USA & UK)

FDA RMAT Application denied, Neurogene evaluating best path forward for the program
(Nov. 2024)

Neurogene continues to evaluate best path forward for NGN-101 program (July 2025 - BDSRA Annual Family Conference)
https://clinicaltrials.gov/study/NCT05228145
CLN6Charlotte & Gwenyth Gray Foundation/ Children's Hospital of Orange County (CHOC)AT-GTX-501 Gene therapy (AAV9; CNS)NCT04273243 - Long-Term Follow Up of CLN6 Batten Disease Subjects Following Gene Transfer; Active, not recruiting.

(Program formerly with Amicus Therapeutics/Nationwide Children’s Hospital, Columbus OH).

Gray Foundation and Children's Hospital of Orange County (CHOC) Announce the Relaunch of CLN6 Gene Therapy Program (May 2025)
https://clinicaltrials.gov/study/NCT04273243
CLN7UT Southwestern/Elpida TherapeuticsGene therapy (AAV9; CNS) Elpida TherapeuticsNCT04737460 Ph1 active; not recruiting (USA)
Assessments ongoing;

Planning underway to move to Phase 2 (Elpida Therapeutics).

First-in-human high dose AAV9 intrathecal gene therapy for paediatric CLN7 disease: Phase 1 clinical trial results published (December 2025)
https://clinicaltrials.gov/study/NCT04737460

Natural History Studies

NCL SubtypeSponsorInterventionStatusLink to Trial Info
Natural History Study - all NCL typesUniversity of Rochester, NYAll NCL typesNCT01873924 recruiting international patients – in-person and/or virtual visits
Natural History Study - CLN3 onlyNational Institutes of Health (NIH)CLN3; biomarker studyNCT03307304 recruiting international patients – in-person visits (+ virtual visits)
Natural History Study - all NCL typesUKE Hamburg-Eppendorf, GermanyAll NCL typesNCT04613089 recruiting international patients – in-person and/or virtual visits