NIH-funded research R01 grant

CRISPR-based exon-skipping to treat Usher syndrome deafness

Official title: Development of CRISPR/Cas9-based exon-skipping strategies for the treatment of USH-associated deafness

Funded at University of Miami School of Medicine · NIH-11125786 · Data updated 2026-11-12

A gene-editing approach using CRISPR techniques to fix faulty exon regions in Usher syndrome patients to protect hearing and balance functions.

More Deafness research and trials

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Miami School of Medicine
NIH-funded
Lab location1 site (Coral Gables, United States)
Project startAugust 22, 2022
Project endJune 30, 2028
Funding year2026
Award (this year)$666,228
NIH project number5R01DC019404-04
Project IDNIH-11125786 on NIH RePORTER

Who could benefit from this research

Could help

Individuals with Usher syndrome or those carrying USH gene mutations who could provide patient-derived cells for organoid models or be considered for future trials.

Less likely to help

Patients without USH-related genetic mutations or those not eligible for gene-editing approaches may not benefit.

What this research studies

This project aims to develop genome-editing strategies using CRISPR to skip faulty exons in USH genes, tested first in human hair cells grown from patient-derived induced pluripotent stem cells and in USH mouse models. Researchers will assess safety and effectiveness of the edits in restoring normal gene function and improving cell health in the inner ear. The work includes creating organoid models of the human inner ear to study how edits affect hair cells and hearing-related biology. If successful, this work could lay the groundwork for future therapies that could help people with Usher syndrome maintain hearing and reduce progression of deaf-blindness.

Why it matters

Potential benefit: If successful, the therapy could preserve or restore hearing in people with Usher syndrome and slow progression toward blindness.

How similar studies have gone: Prior studies show promise for genome editing in hearing cells, but applying CRISPR to Usher-related genes in human inner-ear models is still early-stage.

Where this research is happening

  • University of Miami School of Medicine
    Coral Gables, United States
    Active

Researchers

  • Principal investigator: Blanton, Susan Halloran — University of Miami School of Medicine
  • Study coordinator: Blanton, Susan Halloran

Related research

Other NIH-funded projects on the same topics.

  • How microtubules help inner-ear hair cells develop and prevent deafness

    Researchers are looking at how a gene called Cep85l helps inner-ear hair cells build the tiny bundles needed for hearing, which could explain some inherited hearing loss.

    NIH research University of Virginia · Charlottesville, United States · NIH-11390842

  • Gene therapy approach to Usher syndrome type 1F using compact PCDH15 in the inner ear

    A researcher team is developing a compact gene therapy using specially designed PCDH15 pieces delivered by AAV to the inner ear to help people with Usher syndrome type 1F.

    NIH research Massachusetts Eye and Ear Infirmary · Boston, United States · NIH-11370142

  • New genes for early-onset hearing loss and precision medicine

    Researchers are trying to identify genetic causes of hearing loss present at birth or in early childhood to enable earlier, DNA-based diagnoses and future gene-based therapies.

    NIH research University of Miami School of Medicine · Coral Gables, United States · NIH-11366340

  • Optimizing how CI users hear in busy real-world environments

    This grant studies how to improve speech understanding and spatial hearing for people using cochlear implants, especially those with implants in both ears or with single-sided deafness.

    NIH research Univ of Maryland, College Park · College Park, United States · NIH-11336385

  • Improving genetic testing for hearing loss

    This project works to make genetic test results clearer and more useful for people with inherited hearing loss.

    NIH research University of Iowa · Iowa City, United States · NIH-11287856

  • How Usher-1 proteins in inner-ear hair cells affect hearing

    This project looks at how key Usher-1 proteins help tiny hair cells in the inner ear work and how problems in these proteins lead to inherited hearing and vision loss for people with Usher syndrome.

    NIH research West Virginia University · Morgantown, United States · NIH-11233313

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.
Last reviewed 2026-11-14 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.