Intelligent Vacuum Assisted Biopsy Immediately Before Surgery As an Intra- or Pre-Operative Surrogate for Patient Response to Neoadjuvant Chemotherapy for Breast Cancer

Recruiting now · Not applicable

Conditions studied: Breast Cancer

In brief

Neoadjuvant chemotherapy (NAC) is common practice in the primary treatment of breast cancer, leading to a complete pathologic remission (pCR) of the tumor in more than 50% in aggressive tumor types. As NAC induces different response patterns, radiologic imaging is not sufficiently accurate in predicting residual disease. Because of this uncertainty, surgery is so far the only valid option to either ascertain complete response or to remove the complete residual disease. Vacuum-assisted biopsy (VAB) with the possibility of obtaining tissue of the former tumor center could contribute more reliably to detect any residual tumor or respectively, rule out residual disease. Ultrasound (US) or mammographically (MG) guided VAB will be used in this trial in order to detect residual tumor lesions in patients with radiological complete response (rCR) after NAC. The investigators will evaluate the diagnostic accuracy of the post-NAC VAB sample in comparison to the sample obtained in open surgery.

Key facts

Study ID

NCT04289935

Run by

Klinik Hirslanden, Zurich

People needed

420

Starts

2020-08-17

Expected to finish

2025-06-01

Last updated by the study team

2024-10-23

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Written informed consent according to ICH/GCP regulations before registration and prior to any trial specific procedures
• unifocal, histologically confirmed invasive breast cancer with IHC luminal B (with or without overexpression or amplification of the HER2 receptor) and all ER negative (ER < 10%) breast cancers
• Initial tumor size larger than 1 and less than 5 cm (cT1c to cT2), any N, M0
• Clipping of the primary tumor center prior to the start of neo-adjuvant chemotherapy
• Neo-adjuvant chemotherapy resulting in a radiological complete response or near complete response on MR-Imaging (confirmed within 28 days before or on registration) as described in the trial specific MR-Imaging instructions (available on the welcome page of the study specific SecuTrial link). MRI is strongly recommended, alternative ultrasound
• Former tumor bed must be accessible for biopsy
• Female or male aged ≥ 18 years
• Adequate condition for breast cancer surgery
• Patients with a previously treated malignancy are eligible, when the risk of the prior malignancy interfering with either safety or efficacy endpoints is very low

You may not qualify if…

• Metastatic breast cancer
• Multifocal/Multicentric breast cancer
• Inflammatory breast cancer
• Luminal-A types of breast cancers (ER ≥ 10% and PgR ≥ 10 % and G1 or 2, and/or Ki-67 ≤ 20%, HER2 negative) or low risk if assessed by a validated genomic prognostic test (e.g. Mammaprint, Endopredict, Oncotype or Nanostring)
• Distinct radiological sign of residual disease in the breast after neo-adjuvant chemotherapy by imaging
• Intra-/peritumoral microcalcifications larger than 2 cm at time of diagnosis
• Any local therapy (irradiation or surgery) to the currently treated breast prior to the trial intervention
• Any other serious underlying medical, psychiatric, psychological, familial or geographical condition, which in the judgment of the investigator may interfere with the planned staging, trial intervention and follow-up, affect patient compliance or place the patient at high risk from trial intervention-related complications

Where it is running

• Mediclinic City Hospital Dubai — Dubai, United Arab Emirates (enrolling)
• Brustzentrum Schwaz — Schwaz, Austria (enrolling)
• St. Josef Krankenhaus Wien — Vienna, Austria (enrolling)
• Agaplesion Markus Krankenhaus — Frankfurt, Germany (enrolling)
• Brustzentrum Heidelberg — Heidelberg, Germany (enrolling)
• UFK Klinikum Südstadt Rostock — Rostock, Germany (enrolling)
• Helios Universitätsklinikum Wuppertal — Wuppertal, Germany (enrolling)
• Tumor Zentrum Aarau — Aarau, Switzerland (enrolling)
• Kantonsspital Baden — Baden, Switzerland (enrolling)
• Universitätsspital Basel — Basel, Switzerland (enrolling)
• Bethesda Spital — Basel, Switzerland (enrolling)
• St. Claraspital — Basel, Switzerland (enrolling)
• Hirslanden Brustzentrum Bern Biel — Bern, Switzerland (enrolling)
• Kantonsspital Graubünden — Chur, Switzerland (enrolling)
• Spital Thurgau AG Frauenfeld und Münsterlingen — Frauenfeld, Switzerland (enrolling)
• Clinique de Genolier — Genolier, Switzerland (enrolling)
• Luzerner Kantonsspital — Lucerne, Switzerland (enrolling)
• Hirslanden Klinik St. Anna — Lucerne, Switzerland (enrolling)
• Ente Ospedaliero Cantonale, Dipartimento di ginecologia e ostretricia — Lugano, Switzerland (enrolling)
• Brustzentrum Rheinfelden — Rheinfelden, Switzerland (enrolling)
• Kantonsspital St. Gallen — Sankt Gallen, Switzerland (enrolling)
• Tumor- und BrustZentrum Ostschweiz — Sankt Gallen, Switzerland (enrolling)
• Kantonsspital Winterthur — Winterthur, Switzerland (enrolling)
• Brust-Zentrum Seefeld — Zurich, Switzerland (enrolling)
• Universitäts Spital Zürich — Zurich, Switzerland (enrolling)

Full record on ClinicalTrials.gov

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