# A Study to Describe Treatment Patterns of Advanced Breast Cancer in Poland in the Real-world Data Setting

> **NCT05478590** · — · COMPLETED · sponsor: **Pfizer** · enrollment: 440 (actual)

## Conditions studied

- Breast Neoplasms

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT05478590
- **Lead sponsor:** Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2021-11-22
- **Primary completion:** 2022-09-30
- **Final completion:** 2022-09-30
- **Target enrollment:** 440 (ACTUAL)
- **Last updated:** 2026-04-03


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05478590

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05478590, "A Study to Describe Treatment Patterns of Advanced Breast Cancer in Poland in the Real-world Data Setting". Retrieved via AI Analytics 2026-07-03 from https://api.ai-analytics.org/clinical/NCT05478590. Licensed CC0.

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