Active clinical trials for "Precancerous Conditions"

A feasibility study to compare the test characteristics of three different oral cancer screening techniques performed by trained primary health care workers:1)Unaided Visual Inspection, 2)VelScope Assisted Examination, and 3) Examination after application of Toluidine Blue dye.

RATIONALE: Collecting and storing samples of bone marrow and tissue from patients to test in the laboratory may help the study of cancer. PURPOSE: This laboratory study is comparing proteases (enzymes that break down protein) in patients with prostate cancer that has spread to the bone with patients who do not have cancer that has spread to the bone.

RATIONALE: Studying samples of blood in the laboratory from patients who are at high risk of developing prostate cancer may help doctors identify biomarkers related to cancer. PURPOSE: This research study is looking at blood samples from patients at high risk of developing prostate cancer and from healthy male participants.

RATIONALE: Gathering information about human papillomavirus infection of the mouth in young men may help doctors learn more about risk factors for oropharyngeal cancer. PURPOSE: This research study is assessing human papillomavirus infection of the mouth in young men and risk factors for oropharyngeal cancer.

This natural history study is collecting health information about infants with adrenal masses found on prenatal and/or neonatal imaging. Gathering information over time from imaging and laboratory tests of infants with adrenal masses may help doctors learn more about the disease and plan the best treatment.

RATIONALE: Finding certain changes in genes may help doctors predict which patients are at risk of developing cervical intraepithelial neoplasia or invasive cervical cancer and may help the study of cancer in the future. PURPOSE: This clinical trial is studying genes that may predict which patients are at risk of developing cervical intraepithelial neoplasia or invasive cervical cancer.

RATIONALE: A study that evaluates DNA changes and other disease-related health information in patients with Barrett's esophagus, gastroesophageal reflux, or gastrointestinal bleeding may help doctors learn more about the risk factors for Barrett's esophagus. PURPOSE: This clinical trial is looking at DNA changes and other disease-related health information as risk factors for Barrett's esophagus in patients with Barrett's esophagus, gastroesophageal reflux, or gastrointestinal bleeding.

RATIONALE: Chemoprevention is the use of certain drugs to keep cancer from forming, growing, or coming back. The use of esomeprazole and aspirin may prevent esophageal cancer in patients with Barrett's metaplasia. It is not yet known whether esomeprazole is more effective with or without aspirin in preventing esophageal cancer in patients with Barrett's metaplasia. PURPOSE: This randomized phase III trial is studying esomeprazole with or without aspirin to compare how well they work in preventing esophageal cancer in patients with Barrett's metaplasia.

RATIONALE: Drugs used in chemotherapy use different ways to stop tumors from dividing so they stop growing or die. Chemoprotective drugs, such as amifostine, may protect normal cells from the side effects of chemotherapy. PURPOSE: Phase I trial to study the effectiveness of amifostine plus combination chemotherapy in treating patients with advanced cancer.

RATIONALE: Learning about young adults' knowledge and perceptions about risk factors for the human papilloma virus and cervical cancer may help doctors learn more about how to prevent human papilloma virus infection and cervical cancer in the future. PURPOSE: This clinical trial is studying knowledge and perceptions of the risk factors for human papilloma virus infection and cervical cancer in young adults.