# Pre-analytical Factors Affecting ctDNA Analysis in Early and Locally Advanced Breast Cancer

> **NCT05945290** · — · COMPLETED · sponsor: **Mayo Clinic** · enrollment: 114 (actual)

## Conditions studied

- Anatomic Stage I Breast Cancer AJCC v8
- Anatomic Stage II Breast Cancer AJCC v8
- Anatomic Stage III Breast Cancer AJCC v8
- Early Stage Breast Carcinoma
- Locally Advanced Breast Carcinoma

## Interventions

- **PROCEDURE:** Biospecimen Collection
- **OTHER:** Electronic Health Record Review

## Key facts

- **NCT ID:** NCT05945290
- **Lead sponsor:** Mayo Clinic
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2022-07-07
- **Primary completion:** 2025-06-16
- **Final completion:** 2025-06-16
- **Target enrollment:** 114 (ACTUAL)
- **Last updated:** 2025-09-09

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05945290

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05945290, "Pre-analytical Factors Affecting ctDNA Analysis in Early and Locally Advanced Breast Cancer". Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/clinical/NCT05945290. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*