Treatment of Triple-negative Breast Cancer With Albumin-bound Paclitaxel as Neoadjuvant Therapy: a Prospective RCT
- Conditions
- Breast Cancer
- Interventions
- Drug: nab-Paclitaxel+carboplatinDrug: Paclitaxel+carboplatin
- Registration Number
- NCT04137653
- Lead Sponsor
- Shengjing Hospital
- Brief Summary
Triple-negative breast cancer (TNBC) accounts for about 20% of clinical breast cancer. Clinical characteristics include early onset, high malignancy and heterogeneity. There is no effective drug target for TNBC, resulting in poor outcomes, high relapse rate and distant metastasis. So, further research on TNBC pathological features is particularly important.
Compared with the solvent-based paclitaxel, albumin-bound paclitaxel (nab-P) demonstrates a stronger therapeutic effect. With albumin nanoparticles as a carrier, nab-P increases the concentration of extra-tumor drugs by passing through the albumin receptor (Gp60) transmembrane pathway and the secreted protein acidic and rich in cysteine (SPARC) approach that binds to the extracellular matrix of the tumor. Numerous clinical trials have found that nab-P is superior to the solvent-based paclitaxel in the treatment of breast cancer, especially in breast cancer with poor prognosis. However, the current efficacy of nab-P in the treatment of TNBC has not been fully verified. The mechanism underlying the killing effect of nab-P on TNBC breast cancer cells remains unclear yet. This trial will compare the therapeutic effect of nab-P with solvent-based paclitaxel in TNBC patients, and seek for important scientific clues, scientific evidence, and clinical data for nab-P in the treatment of TNBC.
- Detailed Description
Breast cancer has been one of the most common malignant tumors with highest morbidity and mortality that threatens women's health worldwide. Among US women, there were 250,000 new invasive breast cancers and 40,000 breast cancer deaths in 2017. In the US, 12.4% women develop breast cancer in their lifetime, and the incidence of breast cancer in women over 50 years of age has increased significantly. Although the development of molecular typing and comprehensive treatments have significantly improved the prognosis of breast cancer patients, the recurrence and metastasis of breast cancer is still the main cause of death in breast cancer patients.
TNBC accounts for about 20% of clinical breast cancer. Clinical characteristics include early onset, high malignancy and heterogeneity. There is no effective drug target for TNBC, resulting in poor outcomes, high relapse rate and distant metastasis. So, further research on TNBC pathological features is particularly important.
Paclitaxel is a natural secondary metabolite isolated and purified from the bark of Taxus chinensis. It has been clinically proven to have a good anti-tumor effect. However, polyoxyethylene castor oil/ethanol is often used as a solvent for paclitaxel in clinical practice, and this solvent-based paclitaxel is prone to causing severe allergic reactions, even aggravating myelosuppression and neurotoxicity. In addition, the solvent-based paclitaxel can also influence the efficacy of other drugs by inhibiting albumin-mediated drug delivery. nab-P is a novel paclitaxel that can compensate for the adverse effects of solvent-based paclitaxel and have good efficacy and safety. Compared with the solvent-based paclitaxel, nab-P demonstrates a stronger therapeutic effect. With albumin nanoparticles as a carrier, nab-P increases the concentration of extra-tumor drugs by passing through the albumin receptor (Gp60) transmembrane pathway and the secreted protein acidic and rich in cysteine (SPARC) approach that binds to the extracellular matrix of the tumor. Numerous clinical trials have found that nab-P is superior to the solvent-based paclitaxel in the treatment of breast cancer, especially in breast cancer with poor prognosis. However, the current efficacy of nab-P in the treatment of TNBC has not been fully verified. The mechanism underlying the killing effect of nab-P on TNBC breast cancer cells remains unclear yet.
This trial will compare the therapeutic effect of nab-P with solvent-based paclitaxel in TNBC patients, and seek for important scientific clues, scientific evidence, and clinical data for nab-P in the treatment of TNBC.
Recruitment & Eligibility
- Status
- RECRUITING
- Sex
- Female
- Target Recruitment
- 1498
- breast cancer is confirmed by the mammography, and the immunohistochemical results of cancer tissues are negative for estrogen receptor, progesterone receptor and anti-human epidermal growth factor receptor 2;
- positive for axillary lymph node metastasis;
- 18-70 years of age, female;
- patients have good compliance with the planned treatment, who are volunteer to participate in the study, are willing to be treated with solvent-based paclitaxel or nab-P at random, and provide written informed consent with the premise of fully understanding the study protocol.
- pregnant and lactating women;
- distant metastasis;
- patients with a history of other cancers or who have received radiotherapy on the chest;
- abnormalities in blood tests or presence of other symptoms of infection;
- allergy to paclitaxel;
- patients who have psychotropic drug abuse until now or those with a history of mental disorders;
- abnormalities in important organs such as the heart, lung, liver and kidney;
- patients who have participated in other clinical trials.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description nab-Paclitaxel group nab-Paclitaxel+carboplatin 749 patients will be assigned into nab-Paclitaxel group. paclitaxel group Paclitaxel+carboplatin 749 patients will be assigned into paclitaxel group
- Primary Outcome Measures
Name Time Method Pathologic complete response (PCR) At 5 years of treatment Pathologic complete remission refers to no invasive tumor cell remnants in the pathological examination of the primary mammary gland and axillary lymph nodes surgically removed. The PCR indicates the proportion of the patients with pathological complete remission to the total number of patients.
- Secondary Outcome Measures
Name Time Method Progression-free survival (PFS) Within 5 years of follow-up PFS refers to the time from random enrollment to disease progression or death for any reason indicated by imaging findings. PFS will be recorded within 5 years of follow-up.
Overall survival (OS) Within 5 years of follow-up OS refers to the time from enrollment to death
Adverse events in 5 years Any untoward medical occurrence in a patient and which does not necessarily have a causal relationship with this treatment.
Proportion of tumor stem cells in the lesion At 9 and 18 weeks of treatment The CD44/CD24 expression in the breast tissues will be detected by immunohistochemistry before treatment and at 9 and 18 weeks of treatment, to determine the proportion of tumor stem cells in the lesion.
Trial Locations
- Locations (1)
Shengjing Hospital of China Medical University
🇨🇳Shenyang, Liaoning, China