# [99mTc]Tc-DB8 Accumulation in Primary Tumor in Breast Cancer With Positive and Negative Estrogen Receptor Expression

> **NCT07275463** · PHASE2 · ENROLLING_BY_INVITATION · sponsor: **Tomsk National Research Medical Center of the Russian Academy of Sciences** · enrollment: 40 (estimated)

## Conditions studied

- Primary Breast Cancer

## Interventions

- **DRUG:** [99mTc]Tc-DB8

## Key facts

- **NCT ID:** NCT07275463
- **Lead sponsor:** Tomsk National Research Medical Center of the Russian Academy of Sciences
- **Sponsor class:** OTHER
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** ENROLLING_BY_INVITATION
- **Start date:** 2025-10-01
- **Primary completion:** 2026-12-31
- **Final completion:** 2026-12-31
- **Target enrollment:** 40 (ESTIMATED)
- **Last updated:** 2025-12-22

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07275463

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07275463, "[99mTc]Tc-DB8 Accumulation in Primary Tumor in Breast Cancer With Positive and Negative Estrogen Receptor Expression". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT07275463. Licensed CC0.

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