Case-Control Study of Renal Cell Cancer Among Caucasions and African Americans in the United States

December 30, 2020 updated by: National Cancer Institute (NCI)

Case-Control Study of Renal Cell Cancer Among Caucasians and African Americans in the United States

Incidence rates of renal cell cancer have increased rapidly in the U.S. and other countries. In particular, rates among African Americans have risen more sharply than any other cancer site. We propose to conduct a population-based case-control study of renal cell cancer in areas of the U.S. with a high proportion of African American residents. We will include two study centers and one data coordinating center and will recruit study participants over a period of four years. We plan to conduct in-person interviews with 2,100 cases (1,400 whites and 700 blacks) and 2,800 controls (1,400 each of whites and blacks) to elicit information on demographic background and history of exposures. A 40 ml blood sample will be collected from living cases and controls to measure certain environmental exposures and for genetic analyses. Two buccal cell samples will be collected from living cases and controls for genetic analyses. Tumor tissue blocks will be collected from as many cases as possible for assays of tumor mutations. Diagnostic slides will be collected for standardized reclassification of tumors into clear cell, papillary, and other histologic subtypes. Medical records for all cases will be reviewed for health insurance coverage, concomitant conditions, presenting symptoms, tumor stage, size and grade, and methods leading to diagnosis of renal cell cancer.

Study Overview

Status

Completed

Conditions

Detailed Description

Incidence rates of renal cell cancer have increased rapidly in the U.S. and other countries. In particular, rates among African Americans have risen more sharply than any other cancer site. We propose to conduct a population-based case-control study of renal cell cancer two areas of the U.S. with a high proportion of African American residents: Detroit, Michigan (Wayne State University), and Chicago, Illinois (University of Illinois at Chicago). Westat, Inc. is the coordinating center. Participants are being recruited over a period of four years. A total of 2,100 cases (1,400 Caucasian Americans and 700 African Americans) and 2,800 controls (1,400 each of Caucasian and African Americans) will be recruited. In-person interviews are conducted with cases and controls to elicit information on demographic background and history of exposures. A 40 ml blood sample and a buccal cell sample are collected from cases and controls for genetic analyses. Tumor tissue blocks will be collected from as many cases as possible for assays of tumor mutations. Diagnostic slides will be collected for standardized reclassification of tumors into clear cell, papillary, and other histologic subtypes. Medical records for all cases will be reviewed for presenting symptoms, tumor stage, size and grade, and methods leading to diagnosis of renal cell cancer. Telephone interviews are conducted with the nest-of-kin of eligible cases who died before we could interview them. Permission is being sought from the next-of-kin to assess the case's medical records and obtain tumor tissue samples.

Study Type

Observational

Enrollment (Actual)

2424

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Illinois
      • Chicago, Illinois, United States, 60612
        • University of Illinois at Chicago
    • Michigan
      • Detroit, Michigan, United States, 48201
        • Wayne State University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 79 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Cases and controls are residents of Chicago (Cook County), IL and Detroit (Wayne, Oakland, Macomb Counties), MI.

Description

  • INCLUSION CRITERIA - CASES:

Residents of the study areas who are diagnosed with histologically confirmed renal cell carcinoma at ages 20 to 79 years over a four year study will be potentially eligible for the study.

In addition, only eligible patients who are mentally/physically able to provide informed consent and undergo interviews will be approached for participation.

INCLUSION CRITERIA - CONTROLS:

Population-based controls will be frequency-matched to the cases by study center, race, age and sex, at the ratio of one control per case for non-African Americans and two controls per case for African Americans.

Controls aged 65 years and older will be identified from Health Care Financing Administration (HCFA) files.

Controls under age 65 years will be identified from residents of the study areas by random telephone digit dialing (RDD).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Cases
African American patients with renal cancer from two geographic areas of the US
Controls
African American participants without renal cancer from two geographic areas of the US

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

National Cancer Institute (NCI)

Investigators

  • Principal Investigator: Mark P Purdue, M.D., National Cancer Institute (NCI)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

November 16, 2001

Primary Completion (Actual)

January 31, 2007

Study Completion (Actual)

January 1, 2016

Study Registration Dates

First Submitted

June 19, 2006

First Submitted That Met QC Criteria

June 19, 2006

First Posted (Estimate)

June 21, 2006

Study Record Updates

Last Update Posted (Actual)

December 31, 2020

Last Update Submitted That Met QC Criteria

December 30, 2020

Last Verified

December 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 999902051
  • 02-C-N051

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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