# Breast Cancer in Poland: An Expanded Study to Assess Occupational and Environmental Factors and Interactions With Genetics

> **NCT00341458** · — · COMPLETED · sponsor: **National Cancer Institute (NCI)** · enrollment: 6086 (actual)

## Conditions studied

- Ovarian Neoplasms
- Endometrial Neoplasms
- Breast Neoplasms
- Gonadal Disorders
- Uterine Diseases

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00341458
- **Lead sponsor:** National Cancer Institute (NCI)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 1999-09-01
- **Primary completion:** 2020-04-16
- **Final completion:** 2020-04-16
- **Target enrollment:** 6086 (ACTUAL)
- **Last updated:** 2020-04-20


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00341458

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00341458, "Breast Cancer in Poland: An Expanded Study to Assess Occupational and Environmental Factors and Interactions With Genetics". Retrieved via AI Analytics 2026-07-09 from https://api.ai-analytics.org/clinical/NCT00341458. Licensed CC0.

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