Evaluating Genetic Modifiers of Cutaneous Neurofibromas in Adults With Neurofibromatosis Type 1
Public ClinicalTrials.gov record NCT04941027. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The main goal of this protocol is to develop a well-phenotyped genetic biobank to identify genetic variants associated with the heterogeneous clinical presentations of Neurofibromatosis Type 1 (NF1). This will allow for improve understanding of NF1 pathogenesis and more personalized disease management. The investigators will conduct a GWAS analysis to identify common genetic risk variants associated with the development of cutaneous neurofibromas.
Study identification
- NCT ID
- NCT04941027
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 1,046 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 40 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- May 6, 2021
- Primary completion
- Sep 29, 2025
- Completion
- Nov 23, 2025
- Last update posted
- Dec 1, 2025
2021 – 2025
United States locations
- U.S. sites
- 2
- U.S. states
- 1
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Johns Hopkins University School of Medicine | Baltimore | California | 21218 | — |
| Stanford University | Redwood City | California | 94063 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04941027, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 1, 2025 · Synced Sep 13, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04941027 live on ClinicalTrials.gov.