Minimal Invasive Axillary Staging and Treatment After Neoadjuvant Systemic Therapy in Node Positive Breast Cancer — MINIMAX

Breast Cancer Clinical Trial

Official title:
Minimal Invasive Axillary Staging and Treatment After Neoadjuvant Systemic Therapy in Node Positive Breast Cancer (MINIMAX): a Dutch Multicenter Observational Study to Gain Insight in Less and More Invasive Axillary Staging and Treatment in Relation to Oncologic Safety and Quality of Life to Develop Evidence-based Guidelines.

Status Recruiting

Clinical Trial Summary

Today, the majority of clinically node positive (cN+) breast cancer patients is treated with neoadjuvant systemic therapy (NST). Axillary staging and treatment after NST in cN+ patients are areas of controversy. Patients with a pathological complete response (pCR) of the axillary lymph nodes are not expected to benefit from axillary lymph node dissection (ALND). Hence, less invasive axillary staging procedures are being introduced to avoid unnecessary ALND. However, evidence supporting the safety of replacing ALND by less invasive techniques in terms of oncologic safety and impact on quality of life (QoL) is lacking.

Clinical Trial Description

The MINIMAX is a multicenter registry study that includes node positive breast cancer patients, who are treated with NST (chemotherapy and ± immunotherapy), in order to gain insight in the oncologic safety and impact on QoL of less and more invasive axillary staging and treatment strategies. Patients who are included in this study will complete Patient Reported Outcome Measures (PROMs) at baseline (time of diagnosis), and 1 and 5 years after diagnosis to assess impact on QoL. A database will be built by the Netherlands Cancer Registry. Data on patient-, tumor-, pre-NST staging-, post-NST staging- and treatment-characteristics will be retrieved from patients' records by trained data registrars of the Netherlands Comprehensive Cancer Organisation (IKNL) using electronic case report forms (eCRFs). Five-year survival and recurrence will be evaluated to determine oncologic safety. The results will be incorporated in the national guidelines. In case of an equilibrium between less and more invasive strategies, the data of this study will at least be extremely suitable to be used in the shared decision making process. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04486495
Study type	Observational [Patient Registry]
Source	Maastricht University Medical Center
Contact	Sabine de Wild, MD
Phone	+31433881574
Email	s.dewild@maastrichtuniversity.nl
Status	Recruiting
Phase
Start date	July 16, 2020
Completion date	July 1, 2027

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.