# ASXL-Related Disorders Natural History Study

> **NCT03303716** · — · RECRUITING · sponsor: **University of California, Los Angeles** · enrollment: 200 (estimated)

## Conditions studied

- Bohring-Opitz Syndrome
- ASXL1 Gene Mutation
- Shashi-Pena Syndrome
- ASXL2 Gene Mutation
- Bainbridge-Ropers Syndrome
- ASXL3 Gene Mutation

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT03303716
- **Lead sponsor:** University of California, Los Angeles
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2017-09-20
- **Primary completion:** 2037-09
- **Final completion:** 2037-09
- **Target enrollment:** 200 (ESTIMATED)
- **Last updated:** 2025-12-26

## Collaborators

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- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03303716

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03303716, "ASXL-Related Disorders Natural History Study". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT03303716. Licensed CC0.

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