Reelin protein in Fragile X syndrome

Reelin and Fragile X Syndrome

['FUNDING_R21'] · UNIVERSITY OF SOUTH FLORIDA · NIH-11253286

The team is testing whether boosting a brain protein called Reelin can improve brain connections and help people with Fragile X syndrome.

Quick facts

Phase['FUNDING_R21']
Study typeNih_funding
SexAll
SponsorUNIVERSITY OF SOUTH FLORIDA (nih funded)
Locations1 site (TAMPA, UNITED STATES)
Trial IDNIH-11253286 on ClinicalTrials.gov

What this research studies

If you or a loved one has Fragile X syndrome, this project looks at whether adding or increasing Reelin can fix the disrupted brain signaling that underlies learning, anxiety, and hyperactivity. Researchers will use viral vectors and laboratory models to deliver Reelin and then measure changes in brain synapses and behavior that relate to cognition and social interactions. The effort follows earlier gene-therapy work that restored missing FMRP but often did not correct behavior, so this approach targets synaptic function as an alternative path toward symptom improvement. Results would guide whether Reelin-based therapies should move toward human testing.

Who could benefit from this research

Good fit: People with a confirmed diagnosis of Fragile X syndrome (FMR1 mutation) or caregivers of such individuals would be the primary group most likely considered for related future clinical efforts.

Not a fit: Individuals without Fragile X syndrome or whose symptoms are due to other genetic or acquired conditions are unlikely to benefit from this specific approach.

Why it matters

Potential benefit: If successful, this work could lead to a new approach that improves learning, social behavior, and other core symptoms in people with Fragile X syndrome.

How similar studies have performed: Previous gene therapies that restored FMRP often failed to rescue behavior, and Reelin-based strategies are relatively new with encouraging preclinical signs but no proven benefit in humans yet.

Where this research is happening

TAMPA, UNITED STATES

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.

View on NIH RePORTER →

Conditions: Alzheimer disease dementia, Alzheimer syndrome, Alzheimer's Disease

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.