De-escalation of Axillary Dissection for Node-positive Breast Cancer
Feasibility of De-escalation of Axillary Surgery in ycN0 Breast Cancer Patients Post NAC for cN2, cN3 Disease: Evaluating the Concordance Between ypN Status From TAD and ALND
Recent studies have demonstrated the safety of de-escalation of nodal surgery for clinically node-positive breast cancer patients after a favorable response to neoadjuvant systemic therapy (NST). These studies excluded patients with clinically node-positive stage 2 or 3 (cN2, cN3) disease. Consequently, the current guidelines recommend axillary lymph node dissection (ALND) for patients with cN2/cN3 breast cancer, even after a favorable response to NST. Many cN2/cN3 patients achieve nodal pathologic complete response (pCR) after NST, and this has raised interest in less invasive surgical approaches for the management of the axilla in this setting. We aim to evaluate the pathologic concordance between lymph node status post neoadjuvant therapy (ypN) derived from targeted axillary dissection (TAD) and ALND performed sequentially under the same anesthesia in patients with cN2/cN3 who convert to clinically node-negative (ycN0) following completion of NST. If a high level of concordance is determined between the ypN status determined from the TAD and the ALND, our next step would be to expand the trial to include a larger number of patients, making it multi-institutional, in order to power the study for more meaningful analysis.
調査の概要
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究連絡先
- 名前：IIT Office, MA
- 電話番号：402-559-4596
- メール：IITOffice@unmc.edu
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Females
- Aged ≥ 19 years old at time of study entry.
- Patient must be able to provide study-specific informed consent prior to study enrolment.
- Histological confirmation of breast cancer diagnosis on core needle biopsy. Pathology will be confirmed by internal UNMC review if the biopsy was completed at an outside institution.
- Clinical and/or radiographic cT1-T4 N2-3 M0 disease.
- Patients must complete NST. Patients who complete all recommended cycles of NST, regardless of dose reductions, are eligible.
- Clinical and radiographic (breast MRI with and without contrast) re-evaluation following completion of NST.
- Achievement of a complete clinical and radiographic nodal response (ycN0).
Exclusion Criteria:
- Patients with metastatic disease at presentation.
- Patients unable to complete the recommended NST.
- Patients who are pregnant.
- Patients with a known allergic reaction to injectable blue dye.
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：支持療法
- 割り当て：なし
- 介入モデル：単一グループの割り当て
- マスキング：なし（オープンラベル）
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的：Treatment
TAD + ALND |
do alnd after tad |
この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
To evaluate the pathologic concordance between pathologic nodal status (ypN) derived from targeted axillary dissection (TAD) and axillary lymph node dissection (ALND.)
時間枠：1 month
|
Pathologic concordance between pathologic nodal status derived from TAD and ALND will be determined based on the pathological results of the two specimens collected. |
1 month
|
協力者と研究者
スポンサー
捜査官
- 主任研究者：Janelle-Cheri Millen, MBBS、University of Nebraska
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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