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Study identifier: NCT06662188 Synced from ClinicalTrials.gov · July 30, 2026
● Recruiting

JAG201 Gene Therapy Study in Children & Adults With SHANK3 Haploinsufficiency

Condition: SHANK3 Haploinsufficiency · Phelan-McDermid Syndrome  ·  Sponsor: Jaguar Gene Therapy, LLC

PhasePhase 1/Phase 2
Planned participants6
Who can joinAll sexes, 2 Years to 9 Years
Healthy volunteersNo

About this study

This is a Phase 1/2, first in human, open-label, dose-escalation study to evaluate the safety, tolerability, and clinical activity of a single dose of JAG201 administered via intracerebroventricular (ICV) injection in pediatric and adult participants with SHANK3 haploinsufficiency resulting from SHANK3 loss of function mutations and chromosomal deletions encompassing the SHANK3 gene. Clinical data will be evaluated for safety, tolerability, and preliminary clinical activity of JAG201 in pediatric and adult participants with SHANK3 haploinsufficiency. The pediatric cohorts will start enrolling first and the enrollment for adult cohorts may be initiated at a later timepoint in the study.

This description comes directly from the study's public registry record.

Talk to the study team

Jaguar Gene Therapy  ·  224-303-0701  ·  medinfo@jaguargenetherapy.com

Always discuss trial participation with your own doctor first.

Locations (3)

Rush UniversityChicago, Illinois, United StatesRecruiting
Boston Children's HospitalBoston, Massachusetts, United StatesRecruiting
Seaver Autism Center at Mount SinaiNew York, New York, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT06662188