Observational study of axilla treatment for breast cancer patients with micrometastases or 1 to 3-positive macrometastases in sentinel lymph nodes

Observational study of axilla treatment for breast cancer patients with micrometastases or 1 to 3-positive macrometastases in sentinel lymph nodes - Observational study of axilla treatment for breast cancer patients with positive sentinel lymph nodes

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000011782

Enrollment

250

Registered

2013-09-18

Start date

2013-09-18

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

Female

Inclusion criteria

Inclusion criteria: cases with T1-3N0-1M0 breast cancer (UICC 8th ver.) Invasive cancer proven by breast tissue biopsy pN1mi(sn) or pN1(sn) diagnosed by sentinel node biopsy treatment planned from January 2012 eligible for any case with relapse or no relapse

Exclusion criteria

Exclusion criteria: cases with T4 or distant metastasis cases with pN0(sn) or pN0(i+)(sn) cases with more than 3 of micrometastases or macromestastases in sentinel lymph nodes cases with pregnancy or breast-feeding cases with bilateral breast cancer cases with past history of any kind of invasive cancer treated within 5 years

Design outcomes

Primary

Measure	Time frame
regional recurrence rate in patients treated with no axillary lymph node dissection	—

Secondary

Measure	Time frame
5-year overall survival of patients after primary therapy	—

Countries

Japan

Contacts

Public ContactSatomi Yana

Japanese Society for Sentinel Node Navigation Surgery office

yanas@z7.keio.jp03-3353-6440

Outcome results