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Completed Not applicable Interventional

Family-Based Intervention Study of the Effects of Environmental Exposures on Breast Tissue Composition

ClinicalTrials.gov ID: NCT04265547

Public ClinicalTrials.gov record NCT04265547. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 5, 2026, 1:32 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This research study is being conducted to find out whether changes in household and personal behavior aimed at reducing exposure to environmental chemicals in dust (increased house dust removal efforts/cleaning and hand washing) and consumer products (increased us of personal care and beauty products that are free of chemicals including phthalates, parabens, and phenols) results in lower exposure to environmental chemicals including polycyclic aromatic hydrocarbons (PAHs) and endocrine disrupting chemicals including phthalates, parabens and phenols. These chemicals may have harmful health effects, as they can interfere with normal functions of the body. This study will also assess changes in breast tissue composition to understand the role of environmental exposures in breast cancer risk.

Study identification

NCT ID
NCT04265547
Recruitment status
Completed
Study type
Interventional
Phase
Not applicable
Lead sponsor
Columbia University
Other
Enrollment
32 participants

Conditions and interventions

Eligibility (public fields only)

Age range
10 Years to 65 Years
Sex
Female
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jan 24, 2020
Primary completion
Nov 20, 2020
Completion
Nov 20, 2020
Last update posted
Sep 22, 2025

2020

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Columbia University Mailman School of Public Health New York New York 10032

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04265547, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Sep 22, 2025 · Synced Sep 5, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04265547 live on ClinicalTrials.gov.

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