Study to optimize the number of lymph nodes collected by sentinel lymph node biopsy

Study to optimize the number of lymph nodes collected by sentinel lymph node biopsy - Optimized the number of sentinel lymph nodes removed

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000040989

Enrollment

Registered

2020-07-03

Start date

2020-07-01

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

the ICG injection amount

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: A case of primary breast cancer with no clinically diagnosed lymph node metastasis

Exclusion criteria

Exclusion criteria: (1) Male breast cancer, (2) Patient with history of surgery on affected side breast and axilla, and normal lymphatic flow cannot be expected, (3) Iodine allergy

Design outcomes

Primary

Measure	Time frame
Percentage of cases in which the number of sentinel lymph nodes identified was 2-4	—

Secondary

Measure	Time frame
1: Proportion of cases in which the number of lymph nodes removed was 2 to 4, 2: Identification rate, 3: Relationship between the number of sentinel lymph nodes removed and clinicopathological factors	—

Countries

Japan

Contacts

Public ContactMakita Masujiro

Nippon Medical School Musashikosugi Hospital Department of breast surgery

m-makita@nms.ac.jp044-733-5181

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026