Study of risk reducing contralateral mastectomy (RRM) for Japanese BRCA1/2 mutation carriers

Study of risk reducing contralateral mastectomy (RRM) for Japanese BRCA1/2 mutation carriers - Study of RRM for BRCA1/2 mutation carries

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000031603

Enrollment

Registered

2018-03-06

Start date

2017-12-01

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

hereditary breast and ovarian cancer

Interventions

risk reducing contralateral mastectomy

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: 1.Breast cancer patient with BRCA1/2 mutation 2.Informed consent 3.Women who can visit our hospital to take follw-up survey after RRM

Exclusion criteria

Exclusion criteria: 1.Intrelance to RRM for other disease 2.Women with breast cancer of contralateral breast

Design outcomes

Primary

Measure	Time frame
Incidence and mortality rate of the breast cancer on BRCA1/2 mutation carrier performed risk reduction contralateral mastectomy	—

Secondary

Measure	Time frame
Adverse event related to RRM	—

Countries

Japan

Contacts

Public ContactMitsue Saito

Juntendo University Department of Breast Oncology

mitsue@juntendo.ac.jp03-3813-3111

Outcome results

None listed

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