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Feasibility study of risk reducing mastectomy for Hereditary Breast and Ovarian cancer

Feasibility study of risk reducing mastectomy for Hereditary Breast and Ovarian cance - Feasibility study of RRM for HBOC

Status
Recruiting
Phases
Unknown
Study type
Unknown
Source
JPRN
Registry ID
JPRN-UMIN000046996
Enrollment
2
Registered
2022-03-01
Start date
2019-11-01
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

HBOC

Interventions

None listed

Sponsors

Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1 BRCA1 / 2 gene mutation-positive unilateral breast cancer patients with no suspected breast cancer in healthy breast and BRCA1 / 2 genetic mutation-positive unilateral breast cancer patients with no suspected breast cancer in contralateral healthy breast 2 The patient who has already been given genetic counseling 3 The patient who has been proven to have a BRCA1 or BRCA2 gene mutation 4 The patient with no suspicious findings of metastasis or recurrence of obvious breast cancer 5 Patients who understand risk-reducing mastectomy and wish to have risk-reducing mastectomy 7 The patient who retains the functions of major organs (bone marrow, heart, lungs, liver, kidneys, etc.) 1)White blood cells: 3000 / mm3 or more, less than 12,000 / mm3 2)Hemoglobin: 9.0 g / dl or more 3)Platelets: 100,000 / mm3 or more 4)Total bilirubin: less than 2.0 mg / dL 5)AST, ALT: Facility normal value upper limit x 2 or less 6))Serum creatinine: Within normal facility normal value x 1.5 7)ECG, vital capacity: Patients with cardiopulmonary function who can operate with general anesthesia The inspection data in 1) -7) above shall be within 60 days before the date of consent acquisition. 8) Written consent from the subject to participate in this study 9) Women who are 20 years or older on the date of consent acquisition

Exclusion criteria

Exclusion criteria: 1) The patient with cancer other than active primary early stage breast cancer (regardless of history of breast cancer or ovarian cancer) 2) Pregnant and lactating women 3) The patient with an infectious disease requiring systemic treatment 4) Bilateral breast cancer patients 5) The patient who the researcher deems inappropriate to participate in this study

Design outcomes

Primary

MeasureTime frame
Safety of Surgery

Secondary

MeasureTime frame
Confirm the presence of breast cancer lesions in the resected mammary gland

Countries

Japan

Contacts

Public ContactNoriko Maeda

Yamaguchi University Graduate School of Medicine Department of Gastroenterological, Breast and Endocrine Surgery

nsampei@yamaguchi-u.ac.jp0836222264

Outcome results

None listed

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