TOPS

Identification of high-risk groups for ipsilateral breast tumor recurrence among candidates for omission of breast surgery - Identification of high-risk groups for ipsilateral breast tumor recurrence

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000037067

Enrollment

200

Registered

2019-06-14

Start date

2019-01-04

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

breast cancer

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Triple-negative or HER2-positive breast cancer patients who received NAC and BCT and obtained pCR

Exclusion criteria

Exclusion criteria: Stage 4 breast cancer patients Patients who had tumorectomy before NAC

Design outcomes

Primary

Measure	Time frame
IBTR rate	—

Secondary

Measure	Time frame
Identification of high- or low-risk groups of IBTR	—

Countries

Japan

Contacts

Public ContactMakoto Ishitobi

Osaka International Cancer Institute Departments of Breast and Endocrine Surgery

isitobi-ma@mc.pref.osaka.jp0669451181

Outcome results