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Histology VABB-Histology Post Surgery Pilot Project (BETTY Trial)

Comparison Between Histological VABB and Histological Post-surgery in Patient With Complete Pathological Response After Neoadjuvant Systemic Treatment: Pilot Study

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04365803
Acronym
BETTY
Enrollment
22
Registered
2020-04-28
Start date
2018-06-01
Completion date
2023-12-31
Last updated
2023-06-28

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

Conditions

Breast Cancer

Keywords

breast cancer, vacuum assisted breast biopsy

Brief summary

Pilot study on patients with invasive ductal breast cancer triple negative or receptor tyrosine-protein kinase erbB-2 (HER2) overexpressed, any axillary lymphnodes status (any cN), candidates to neoadjuvant chemotherapy. The principal endpoint of the study will be the accuracy of the result of the histological examination of the Vacuum- Assisted Breast Biopsy (VABB) performed pre-surgery in comparison to the result of the histological examination of the definitive surgical intervention in patients with radiological complete response at Magnetic resonance imaging (MRI) done after the end of neoadjuvant chemotherapy.

Detailed description

The study articulates in five phases: Phase one: acquisition of the informed consent followed by positioning a clip into the cancer bed (by radiologist) if not already present; Phase two: after radiological confirmation of pathological Complete Response (pCR) done performing breast ultrasound, MRI and 18F-2-fluoro-2-deoxy-D-glucose fluorodeoxyglucose positron emission tomography (18-FDG-PET) after neoadjuvant chemotherapy the patient becomes candidate to VABB pre surgery. Phase three: the patient has VABB within 15 day from the term of neoadjuvant chemotherapy Phase four: definitive surgical intervention within 30 days from the end of the neoadjuvant chemotherapy Phase five: verification of correspondence between histology of VABB and definitive histology. The study hypothesis is that VABB could be used in the patients with pCR to the imaging post-neoadjuvant chemotherapy to confirm sensibility and specificity of 18 FDG TC PET and breast MRI to show the absence of breast cancer. The use of VABB with negative histology result could bring to a therapeutic gold standard without over surgical treatment

Interventions

patient with radiological complete response after neoadjuvant chemotherapy undergo to vacuum assisted breast biopsy and the to definitive surgery

Sponsors

European Institute of Oncology
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* age ≥ 18 aa; * histological diagnosis done at European Institute of Oncology (if not, to does revision of pathological material); * invasive ductal breast cancer triple negative or HER2 overexpressed, any cN; * neoadjuvant standard systemic treatment after surgery +/- trastuzumab; * propose of conservative or demolitive surgery; * M0 * cancer bed identified pre neoadjuvant chemotherapy by clip

Exclusion criteria

* multicentric or bilateral breast cancer * mammography microcalcifications * in situ breast carcinoma * positive anamnesis for previous breast cancer * positive anamnesis for medical or psychological conditions that prevent membership study

Design outcomes

Primary

MeasureTime frameDescription
Evaluation of the accuracy of histological examination of the VABB performed pre-surgery45 daysIdentification of percentage of cases with correspondence between histology of VABB presurgery and histology of definitive surgery in patients with complete radiological response after neoadjuvant chemotherapy

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026