Breast Cancer Clinical Trial
Official title:
A Prospective Multicenter Clinical Trial of Internal Mammary Sentinel Lymph Node Biopsy With Modified Injection Technique for Early Breast Cancer
Internal Mammary Lymph Node (IMLN) and Axillary Lymph Node (ALN) are regarded as "the first
station" of lymphatic drainage in breast cancer, serving as an important reference for lymph
staging and decision-making. Although the concept of Internal Mammary Sentinel Lymph Node
Biopsy (IM-SLNB) has been included in the AJCC guidelines since the 6th edition, technical
bottlenecks and clinical benefits still remained to be the main reasons limiting its clinical
application:
Technical bottlenecks: In previous clinical practice, the internal mammary visualization rate
was very low (13% on average, 0% -37%) under the guidance of the traditional radionuclide
injection technique, which became a technology bottleneck restricting the widespread of
IM-SLNB. After continuous exploration, our center invented the "modified injection technique"
of injecting the nuclide tracer into the mammary gland layer at 6 and 12 o'clock around the
areolar under the guidance of ultrasound, as well as increasing the injection volume to
increase the local tension. A high internal mammary imaging rate of 71% was obtained, which
laid a foundation for the further study and clinical application of IM-SLNB.
Clinical benefits: The IM-SLNB is a method to assess IMLN metastatic status in a minimally
invasive way, which may improve the system of regional staging and guide precise IMLN
treatment. However, based on the current IM-SLNB indication, the internal mammary metastasis
rate was only 8%-15%, and it only had little influence on treatment strategy, which led to
the controversy of its clinical application. Previous studies of extended radical mastectomy
showed that in ALN positive patients the IMLN metastasis rate was 28-52%, while in ALN
negative patients the metastasis rate was only 5-17%. Therefore, the continuation of the
previous A-SLNB indication (clinical ALN negative) to IM-SLNB is apparently not in line with
the current clinical practice, but further evaluation of internal mammary metastasis status
in clinical ALN positive patients may receive greater benefit.
This prospective multicenter study attempted to perform IM-SLNB with our modified injection
technique both in clinical ALN negative and positive patients for the first time. Through
analyzing metastasis rate of IMLN as well as the influences it had on decision making, we
hoped to develop more accurate indication for IM-SLNB and guide the individualized precise
treatment of IMLN.
Status | Recruiting |
Enrollment | 350 |
Est. completion date | December 31, 2020 |
Est. primary completion date | June 30, 2020 |
Accepts healthy volunteers | No |
Gender | Female |
Age group | 18 Years to 70 Years |
Eligibility |
Inclusion Criteria: - Patients with preoperative pathology confirmed invasive breast cancer; - Clinical T1-3 N0-3 M0 (with positive fine-needle aspiration result in their clinical or ultrasonic suspicious axillary lymph node ; no clinical or radiologic evidence of distant metastases); - Be able and willing to sign informed consent forms. Exclusion Criteria: - Patients with enlarged internal mammary nodes by imaging; - Patients who have received neoadjuvant therapy (including neoadjuvant chemotherapy and / or endocrine therapy); - Patients with a previous history of breast cancer (recurrence of breast cancer and contralateral breast cancer); - Patients with a history of other malignancies; - Patients who have had previous surgery in axillary or internal mammary; - Patients in pregnancy and lactation; - Patients participant in other clinical trials that will have an impact on the results of this study. |
Country | Name | City | State |
---|---|---|---|
China | Shandong Cancer Hospital and Institute | Jinan | Shandong |
Lead Sponsor | Collaborator |
---|---|
Shandong Cancer Hospital and Institute | Henan Cancer Hospital, The Affiliated Hospital of Qingdao University |
China,
Qiu PF, Liu JJ, Liu YB, Yang GR, Sun X, Wang YS. A modified technology could significantly improve the visualization rate of the internal mammary sentinel lymph nodes in breast cancer patients. Breast Cancer Res Treat. 2012 Nov;136(1):319-21. doi: 10.1007/s10549-012-2203-5. Epub 2012 Sep 6. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Visualization Rate | The internal mammary sentinel lymph node visualization rate with our modified injection techniques | 2 year | |
Secondary | Success rate of IM-SLNB | Success rate of IM-SLNB in the IMSLN visualization patients who receive IM-SLNB | 2 year | |
Secondary | Frequency and Severity of Complications with IM-SLNB | IM-SLNB complications in the patients who receive IM-SLNB | 2 year | |
Secondary | Metastasis Rate of IMSLN | Metastasis rate of IMSLN in clinically axillary node-negative and clinically axillary node-positive patients | 2 year | |
Secondary | Clinical Benefits | staging and treatment change rate | 2 year |
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