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Diindolylmethane in Treating Patients With Abnormal Cervical Cells

2014-08-27 03:39:02 | BioPortfolio

Summary

RATIONALE: Chemoprevention is the use of certain drugs to keep cancer from forming. The use of diindolylmethane, a substance found in cruciferous vegetables, may keep cervical intraepithelial neoplasia or cervical cancer from forming.

PURPOSE: This randomized phase III trial is studying diindolylmethane to see how well it works compared to a placebo in treating patients with abnormal cervical cells.

Description

OBJECTIVES:

- Compare the effect of diindolylmethane vs placebo in reducing the prevalence of histologically proven high-grade cervical intraepithelial neoplasia in patients with low-grade cervical cytological abnormalities.

- Compare the effect of these regimens in reducing the prevalence of cytological abnormalities in these patients.

- Compare the effect of these regimens in changing the clinical appearance of the cervix in these patients.

- Determine if diindolylmethane offers benefits in relation to human papillomavirus (HPV) status, including HPV type, viral load, and integration.

- Determine the side effects of supplementation with diindolylmethane.

- Determine the effects of this drug on migraine, mastalgia, weight, and premenstrual syndrome (PMS).

OUTLINE: This is a double-blind, randomized, placebo-controlled, multicenter study. Patients are randomized to 1 of 2 treatment arms.

- Arm I: Patients receive oral diindolylmethane once daily for 6 months.

- Arm II: Patients receive oral placebo once daily for 6 months. Patients undergo cervical sampling at baseline and at 6 months for Pap testing by liquid based cytology and human papillomavirus (HPV) testing by polymerase chain reaction. Some patients also undergo urine and hair sample collection at baseline and at 3 and 6 months. Samples are analyzed for estrogen and diindolylmethane metabolites, to monitor patient compliance and response to treatment. Some patients have a cervical photograph taken using a colposcope at baseline and at 6 months. All patients undergo colposcopy at 6 months.

Patients complete a questionnaire at baseline (i.e., for reproductive history, diet, smoking, and premenstrual symptoms) and at 6 months (i.e., for side effects, compliance, changes in smoking, and contraception use). Patients with moderate to severe premenstrual syndrome (PMS) also complete PMS questionnaires once monthly during months 1-6 and 4 months following completion of study therapy. All patients are instructed to maintain current diet and to keep cruciferous vegetables and soy products constant during study course.

After completion of study treatment, patients are followed periodically for up to 7 years.

PROJECTED ACCRUAL: A total of 3,000 patients will be accrued for this study.

Study Design

Allocation: Randomized, Control: Placebo Control, Masking: Double-Blind, Primary Purpose: Prevention

Conditions

Cervical Cancer

Intervention

oral microencapsulated diindolylmethane, polymerase chain reaction, cervical Papanicolaou test, cytology specimen collection procedure, colposcopic biopsy

Location

Barts and the London School of Medicine
London
England
United Kingdom
EC1M 6BQ

Status

Recruiting

Source

National Cancer Institute (NCI)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:39:02-0400

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A technique that labels specific sequences in whole chromosomes by in situ DNA chain elongation or PCR (polymerase chain reaction).

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