Neoadjuvant Treatment of Triple-Negative Breast Cancer with Stereotactic Radiotherapy, PD-1 Monoclonal Antibody, and Chemotherapy

Trial statusNot yet recruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexFemale
Age18+
SponsorCancer Institute and Hospital, Chinese Academy of Medical Sciences

About this trial

The primary aim is to evaluate the efficacy of neoadjuvant SBRT combined with PD-1 monoclonal antibody and chemotherapy in patients with triple-negative breast cancer, with the endpoint being the pCR rate-defined as the proportion of patients with no residual invasive cancer in the breast and no axillary lymph node metastasis after treatment. This is a single-arm study. Eligible participants will receive : neoadjuvant treatment consisting of SBRT followed by Envafolimab (PD-1 inhibitor), chemotherapy and immunotherapy (Envafolimab). Surgery will be performed after the last chemotherapy cycle. Pathological evaluation will assess the treatment response. Patients will receive adjuvant immunotherapy (Envafolimab) up to 1 year post-surgery.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

None

Disqualifiers

None

Trial design

Design model

Single group

Treatments tested in this trial

  • neoadjuvant SBRT combined with PD-1 monoclonal antibody and chemotherapy

    Radiation

    Eligible participants will receive neoadjuvant treatment consisting of: SBRT: One session of 10Gy radiation to the primary tumor, followed by a 150mg subcutaneous injection of pembrolizumab (PD-1 inhibitor). Chemotherapy and Immunotherapy: One week after SBRT, participants will undergo 6 cycles of pembrolizumab (400mg), albumin-bound paclitaxel (250mg/m²), and carboplatin (AUC=5). Surgery: Surgery will be performed 21 days after the last chemotherapy cycle, with either breast-conserving surgery or modified radical mastectomy. Pathological evaluation will assess the treatment response. Adjuvant Immunotherapy: Four weeks post-surgery, patients will receive pembrolizumab every 3 weeks for up to 1 year.

Treatment groups

20 Participants
are divided into 1 treatment group
Group A: neoadjuvant SBRT combined with PD-1 monoclonal antibody and chemotherapyExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

the efficacy of neoadjuvant SBRT combined with PD-1 monoclonal antibody and chemotherapy

pCR rate-defined as the proportion of patients with no residual invasive cancer in the breast and no axillary lymph node metastasis after treatment

Time frame
From enrollment to the completion of surgery

Secondary outcomes

Other outcomes

Locations

This trial has no locations.

Sponsors and contacts

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