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临床试验/NCT03040492
NCT03040492已完成不适用

Vitamin D Receptor Polymorphisms and Non-Melanoma Skin Cancer Risks in Alabama Population

University of Alabama at Birmingham1 个研究点 分布在 1 个国家目标入组 200 人开始时间: 2012年10月31日最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
200
试验地点
1
主要终点
SIngle nucleotide polymorphisms (SNP)

研究概览

简要总结

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.

详细描述

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.

研究设计

研究类型
Observational
观察模型
Case Control
时间视角
Cross Sectional

入排标准

年龄范围
50 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • 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

排除标准

  • Age less than 50
  • Diagnosis of melanoma or other type of cancer
  • Non-English speakers

结局指标

主要结局

SIngle nucleotide polymorphisms (SNP)

时间窗: 2 years

Number of patients with the presence or absence of VDR SNP in their DNA isolated from their blood samples. PCR will be performed on the DNA samples for using specific primers for SNP, and the PCR products will be sequenced for detection of SNP.

次要结局

未报告次要终点

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Nabiha Yusuf

Principal Investigator

University of Alabama at Birmingham

研究点 (1)

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