# Carbon Suspension vs. Metallic Marker for Axillary Lymph Node Marking in Breast Cancer After Neoadjuvant Therapy

> **NCT07106112** · NA · RECRUITING · sponsor: **Saint Petersburg State University, Russia** · enrollment: 110 (estimated)

## Conditions studied

- Breast Cancer

## Interventions

- **PROCEDURE:** Ultrasound-guided carbon suspension (Black Eye) injection
- **PROCEDURE:** Ultrasound-guided metallic marker (TWIRL ULTRACOR) placement

## Key facts

- **NCT ID:** NCT07106112
- **Lead sponsor:** Saint Petersburg State University, Russia
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2025-05-15
- **Primary completion:** 2026-05-15
- **Final completion:** 2026-12-31
- **Target enrollment:** 110 (ESTIMATED)
- **Last updated:** 2025-08-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07106112

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07106112, "Carbon Suspension vs. Metallic Marker for Axillary Lymph Node Marking in Breast Cancer After Neoadjuvant Therapy". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT07106112. Licensed CC0.

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