NCT06705127

Radiotherapy Followed by Chemotherapy Combined With Toripalimab in Local Advanced HR-positive,HER2-negative BC.

A Phase II,Single-arm,Multicenter Study of Radiotherapy Followed by Chemotherapy Combined With Toripalimab Immunotherapy in Local Advanced HR-positive,HER2-negative Breast Cancer.

• Status: Recruiting
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 30 (estimated)
• Sponsor: First Affiliated Hospital of Zhejiang University · Academic / Other
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Not accepted

Summary

This study is the first to explore the clinical study of neoadjuvant radiotherapy followed by chemotherapy combined with terriplizumab in breast cancer. Participants with locally advanced (T1c-T2(≥2cm) N1-2M0 or T3-4cN0-2M0) HR-positive and HER2-negative breast cancer were enrolled to evaluate the efficacy and safety of neoadjuvant radiotherapy followed by chemotherapy combined with triplimab in the treatment of locally advanced HR-positive and HER2-negative breast cancer. About 30 participants are planned to participate in this clinical study.

Detailed description

Breast cancer is the first malignant tumor in women worldwide, and its incidence is still increasing year by year. Compared with developed countries in Europe and the United States, although the incidence of breast cancer in China is low, it is showing a rapid growth trend, and due to practical factors such as large population base and unbalanced distribution of medical resources, the overall stage of initial diagnosis of breast cancer patients in China is later than that in developed countries in Europe and the United States, and the proportion of local advanced and advanced breast cancer patients is higher. As the overall prognosis of early breast cancer patients is good, how to further improve the therapeutic effect of locally advanced and advanced breast cancer patients has become the main pass to improve the overall prognosis of breast cancer. In the comprehensive treatment strategy of breast cancer, radiotherapy is an indispensable part of local treatment. In the past, the understanding of the antitumor effect of radiotherapy was mainly limited to the dormancy or lytic death of tumor cells caused by DNA damage in tumor cells caused by X-ray. However, in recent years, with the deepening of research on tumor microenvironment and immunotherapy, researchers have gradually revealed the remodeling effect of radiotherapy on tumor microenvironment. We designed this clinical study of neoadjuvant radiotherapy sequential chemotherapy combined with terriplizumab immunotherapy to explore the effect of neoadjuvant radiotherapy sequential chemotherapy combined with terriplizumab on postoperative pCR rate and prognosis of patients with locally advanced HR-positive and HER2-negative breast cancer.

Conditions

• HR-positive,HER2-negative Breast Cancer

Interventions

Type	Name	Description
DRUG	TORIPALIMAB INJECTION(JS001 )	Drug A: 240mg intravenous infusion of Toripalimab, once every 3 weeks, the first dosing date was C1D1, followed by the first day of each course for 18 cycles, a total of 1 year. Drugs B and C: Epirubicin was administered intravenously after the dosage was calculated at 90mg/m2 body surface area, cyclophosphamide was calculated at 600mg/m2 body surface area by intravenous micropump, both drugs were administered every 3 weeks, the first administration date was C1D1, and then the first day of each course was administered for 4 cycles. Drug D:albumin paclitaxel was given intravenatically at a dose of 125mg/m2 body surface area, once a week, with the first administration date of C5D1, and then on the first day of each course for 12 cycles.
RADIATION	Stereotactic Body Radiation Therapy (SBRT)	Local radiotherapy: Subjects received stereotactic radiotherapy for the primary breast cancer lesion at 8Gy each time for 3 consecutive days, once a day, 2 weeks before the start of systemic therapy

Timeline

• Start date: 2024-07-01
• Primary completion: 2025-07-01
• Completion: 2028-07-01
• First posted: 2024-11-26
• Last updated: 2024-11-26

Locations

1 site across 1 country: China