# Characterizing Rate of Progression in USHer Syndrome (CRUSH) Study

> **NCT04820244** · — · UNKNOWN · sponsor: **Radboud University Medical Center** · enrollment: 36 (actual)

## Conditions studied

- Usher Syndrome, Type 2A
- Retinitis Pigmentosa
- USH2A

## Interventions

- **OTHER:** No intervention

## Key facts

- **NCT ID:** NCT04820244
- **Lead sponsor:** Radboud University Medical Center
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2019-02-11
- **Primary completion:** 2024-03-02
- **Final completion:** 2024-03-02
- **Target enrollment:** 36 (ACTUAL)
- **Last updated:** 2022-04-29

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04820244

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04820244, "Characterizing Rate of Progression in USHer Syndrome (CRUSH) Study". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT04820244. Licensed CC0.

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