Camrelizumab in Combination With Chemotherapy as Neoadjuvant Treatment in Patients With Early or Locally Advanced Triple-negative Breast Cancer

Overview

To explore the application of Camrelizumab with chemotherapy as neoadjuvant treatment of early-stage TNBC. Phase II clinical study of Camrelizumab in neoadjuvant treatment of early-stage TNBC is proposed. The study aims to evaluate the efficacy and safety of Camrelizumab and to provide a new treatment option for neoadjuvant treatment of early-stage TNBC.

Detailed description

This study is a single center, non blinded, randomized phase II clinical trial. A total of 40 patients early-stage T3-4NanyM0 any TanyN+M0 TNBC, who meet the inclusion and exclusion criteria, are planned to be enrolled.

Patients will receive neoadjuvant chemotherapy as 4 course ddAC (doxorubicin 60 mg/m² as an and cyclophosphamide 600 mg/m² on day 1 every 2 weeks) + paclitaxel 80 mg/m² + carboplatin AUC2 on day 1 every 1 weeks a total of 12 weeks with camrelizumab at a dose of 200 mg once every 2 weeks for a total of 16 weeks.

Imaging assessments will be conducted every 4 weeks during the neoadjuvant treatment phase. After the neoadjuvant treatment is completed, surgery will be performed within 4 weeks of the last study drug administration. Whether to receive adjuvant treatment after surgery will be determined by the investigator. The primary endpoint of the study is the pathological complete response (pCR) rate. Secondary endpoints include objective response rate (ORR), event-free survival (EFS), overall survival (OS), and safety. During the follow-up phase, survival follow-up will be conducted every 3 months (±28 days) in the first year and every 6 months (±28 days) thereafter, until disease progression, disease recurrence, or until 3 years after the last patient is enrolled (whichever occurs first).

Interventions

• Drug Camrelizumab
  200 mg by intravenous (iv.) infusion every 2 weeks (Q2W) for 10 times
• Drug Doxorubicin +cyclophosphamide+ filgrastimum
  Doxorubicin 60mg/m² + cyclophosphamide 600 mg/m² on Day 1 of Cycles 1-4 (Q2W) of the first neoadjuvant phase of the study, IV infusion. filgrastim (G-CSF) subcutaneously on days 2-6 of Cycles 1-4
• Drug carboplatin + paclitaxel (CP)
  carboplatin AUC 2 and paclitacel 80 mg/m² will be given on day 1 every 12 weeks of the second neoadjuvant phase of the study, IV infusion.

Primary outcome measures

• Pathologic Complete Response (pCR) [Time frame: The outcome was changed from 19 weeks at the time of results entry as the treatment period was actually 20 weeks and the outcome was assessed 4-6 weeks after treatment when surgery took place.]

Secondary outcome measures (3)

• objective response rate (ORR) [Time frame: average 18 months]
• Disease-free Survival [Time frame: expected average 48 months]
• Overall Survival [Time frame: approximately 48 months]

Eligibility criteria

Inclusion criteria

1\) 18-65 Years, female; 2) Histologically documented Triple Negative Breast Cancer (TNBC) patients; 3) Previously untreated non-metastatic (M0) TNBC, T3-4NanyM0 или TanyN+M0 3) Promising radical surgical treatment; 4) At least one measurable lesion according to RECIST 1.1; 5) Life expectancy is not less than 3 months; 6) ECOG: 0～1; 7) Adequate function of major organs meets the following requirements:

8\) Neutrophils ≥ 1.5×10\^9/L Hemoglobin ≥ 90g/L Platelets ≥ 100×10\^9/L Total bilirubin≤ 1.5 × the upper limit of normal (ULN) ALT and AST ≤ 2.5 × ULN Serum creatinine ≤1.5 × ULN, Endogenous creatinine clearance ≥50mL/min;

9\) Left ventricular ejection fraction (LVEF) ≥50% or ≥ limit of normal (LLN) was evaluated by echocardiography (ECHO) or Multigated Acquisition (MUGA); 10) Women with childbearing potential who are must agree to take effective contraceptive measures during the study period and ≥120 days after the last administration of the study drug, and must have a negative serum pregnancy test result within 7 days prior to initiation of study drug.

11\) The patient voluntarily joined the study, signed an informed consent form, had good compliance, and cooperated with follow-up;

Exclusion criteria

• Has participated in an interventional clinical study with an investigational compound within 4 weeks prior to initiation of study treatment;
• Prior treatment with anti-cytotoxic T-lymphocyte-associated protein 4 (anti-CTLA-4), anti-programmed death-1 (anti-PD-1), and anti-PD-L1 therapeutic antibodies;
• Has a history of invasive malignancy ≤5 years prior to signing informed consent except for adequately treated basal cell or squamous cell skin cancer or in situ cervical cancer;
• Active or history of autoimmune disease or immune deficiency diseases except history of autoimmune-related hypothyroidism, controlled Type 1 diabetes mellitus;;
• Has a history of (non-infectious) pneumonitis, interstitial lung disease or uncontrollable systematicness diseases, including pulmonary fibrosis, acute lung disease, etc.;
• Administration of a live attenuated vaccine within 30 days prior to initiation of study treatment or anticipation of need for such a vaccine during the study;
• Has active infection (CTCAE≥2) needed the treatment of antibiotic within 2 weeks prior to initiation of study treatment;
• Has a history of serious cardiovascular disease, including myocardial infarction, acute coronary syndrome or coronary angioplasty/stent implantation/bypass grafting history in the past 6 months, and have level II-IV congestion Heart failure (CHF), or III NYHA and IV CHF history;
• Prior allogeneic stem cell or solid organ transplantation
• History of neurological or psychiatric disorders, including schizophrenia, severe depressive disorder, bipolar disorder, etc.;
• Subjects with a condition requiring systemic treatment with either corticosteroids (>10 mg daily prednisone equivalent) or other immunosuppressive medications within 14 days of first administration of study treatment. Inhaled or topical steroids, and adrenal replacement steroid doses > 10 mg daily prednisone equivalent, are permitted in the absence of active autoimmune disease.
• History of severe hypersensitivity reactions to other monoclonal antibodies, or intravenous infusion, or Doxorubicin, or cyclophosphamide, or paclitaxel, or carboplatine
• Female patients during pregnancy and lactation, fertile women with positive baseline pregnancy tests or women of childbearing age who are unwilling to take effective contraceptive measures throughout the trial;
• Any other situation evaluated by researchers.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation

N/A

Model

Single group

Masking

Open label

Primary purpose

Health services research

Study locations

Center list to be confirmed — check the primary protocol.

Identifiers

NCT: NCT07107217 · 15.07.2025

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗