Active clinical trials for "Precancerous Conditions"

RATIONALE: Vaccines made from protein and DNA may help the body build an effective immune response to kill abnormal cells in the cervix. The use of vaccine therapy may prevent cervical cancer. PURPOSE: This phase I/II trial is studying the side effects and best dose of vaccine therapy and to see how well it works in preventing cervical cancer in patients with cervical intraepithelial neoplasia and human papillomavirus.

RATIONALE: Chemoprevention therapy is the use of certain substances to try to prevent the development or recurrence of cancer. Vitamin E, selenium, and soy protein may be effective in preventing the development of prostate cancer. PURPOSE: Randomized phase III trial to study the effectiveness of combining vitamin E, selenium, and soy protein in preventing prostate cancer in patients who have high-grade prostate neoplasia.

RATIONALE: Vaccines made from a gene-modified virus may help the body build an effective immune response to prevent viral infection. PURPOSE: This phase II trial is studying how well vaccine therapy works in preventing human papillomavirus (HPV) infection in young HIV-positive male patients who have sex with males.

Precancerous lesions of the cervix occur frequently and are treatable. This justifies a population-based screening program. Following an abnormal Pap smear, patients are referred for a colposcopic exam to confirm the presence/stage of disease and select appropriate treatments. Unfortunately, these approaches do not detect all lesions or can sometimes give 'false positive' results (resulting in overtreatment). We are testing a device called a 'multispectral digital colposcope' to determine whether it is more effective at detecting precancerous cervical lesions than existing tools. Success in our study will make diagnoses more accurate and reduce the costs associated with unnecessary treatments.

This randomized phase II trial studies how well vandetanib works in preventing head and neck cancer in patients with precancerous head and neck lesions. Chemoprevention is the use of certain drugs to keep cancer from forming. The use of vandetanib may keep cancer from forming in patients with premalignant lesions

The purpose of this study is to determine whether endomicroscopy can improve the detection of Early Gastric Cancers (EGC).

RATIONALE: New diagnostic procedures, such as optical coherence tomography, may be effective in finding tumor cells. PURPOSE: This clinical trial is studying optical coherence tomography in tissue samples from women undergoing mastectomy for the treatment or prevention of breast ductal intraepithelial neoplasia.

RATIONALE: Supplements, such as folic acid, may stop or delay the development of cervical cancer in women infected with human papillomavirus. PURPOSE: This phase II trial is studying how well folic acid supplements work in preventing cancer in women infected with human papillomavirus.

The use of lovastatin may slow disease progression in patients at high risk of melanoma. It is not yet known whether lovastatin is more effective than a placebo in treating patients at high risk of melanoma. This randomized phase II trial studies how well giving lovastatin or placebo works in treating patients at high risk of melanoma.

The purpose of this study is to determine if toremifene citrate is effective and safe in the prevention of prostate cancer in men who have been diagnosed with high grade prostatic intraepithelial neoplasia (PIN).