# Registry Study of Pregnancy and Breast Cancer

> **NCT04603820** · — · ACTIVE_NOT_RECRUITING · sponsor: **Spanish Breast Cancer Research Group** · enrollment: 866 (actual)

## Conditions studied

- Breast Cancer and Pregnancy

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT04603820
- **Lead sponsor:** Spanish Breast Cancer Research Group
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2019-11-18
- **Primary completion:** 2030-01
- **Final completion:** 2030-01
- **Target enrollment:** 866 (ACTUAL)
- **Last updated:** 2025-12-18


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04603820

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04603820, "Registry Study of Pregnancy and Breast Cancer". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT04603820. Licensed CC0.

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