Vitamin D Receptor Polymorphisms and Non-Melanoma Skin Cancer Risk

NCT ID: NCT03040492

Last Updated: 2025-09-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

200 participants

Study Classification

OBSERVATIONAL

Study Start Date

2012-10-31

Study Completion Date

2017-06-30

Brief Summary

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The purpose of this study is to discover whether certain Vitamin D Receptor (VDR) gene polymorphisms are associated with an increased risk of cutaneous basal cell carcinoma (BCC) and/or cutaneous squamous cell carcinoma (SCC) in an Alabama population. Participant demographic information such as physical characteristics (e.g., ethnicity), family history, and cancer diagnosis will be collected in order to determine if there are relationships between the gene polymorphisms, cancer diagnosis, and these characteristics.

Detailed Description

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The purpose of this study is to discover whether certain Vitamin D Receptor (VDR) gene polymorphisms are associated with an increased risk of cutaneous basal cell carcinoma (BCC) and/or cutaneous squamous cell carcinoma (SCC) in an Alabama population. Participant demographic information such as physical characteristics (e.g., ethnicity), family history, and cancer diagnosis will be collected in order to determine if there are relationships between the gene polymorphisms, cancer diagnosis, and these characteristics. By identifying the VDR polymorphisms for the Apa1, Taq1, Bsm1, and Fok1 genes within the participant population and comparing the genotypes to controls, the investigators hope to demonstrate which gene polymorphisms indicate an increased risk for SCC or BCC.

Inclusion- patients with a non-melanoma skin cancer. Participants must be 50 years old or older. Controls- patients without non-melanoma skin cancer and who have no family history of skin cancer. They must also be 50 years old or older; Inclusion for both groups- English speakers and patients at the Kirklin Clinic during the months of our data collection. Exclusion criteria will be patients younger than 50 years old or who have a diagnosis of melanoma or other type of cancer, or who are non-English speakers.

Conditions

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Skin Cancer, Non-Melanoma

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Eligibility Criteria

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Inclusion Criteria

* Patients with non-melanoma skin cancer (cases)
* Patients without non-melanoma skin cancer or history of non-melanoma skin cancer (controls)
* Age 50 and older
* Native English speakers
* Patients at Kirklin Clinic

Exclusion Criteria

* Age less than 50
* Diagnosis of melanoma or other type of cancer
* Non-English speakers
Minimum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Alabama at Birmingham

OTHER

Sponsor Role lead

Responsible Party

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Nabiha Yusuf

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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The Kirklin Clinic

Birmingham, Alabama, United States

Site Status

Countries

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United States

Other Identifiers

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X120713008

Identifier Type: -

Identifier Source: org_study_id

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