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Breast AdenocarcinomaPhase 2NEOTRIO-HRNCT06671262

Neoadjuvant Toripalimab and Radiotherapy Treatment in N+ HR+ Breast Cancer

A Phase 2 study testing SBRT and Immuno-chemotherapy in people with Breast Adenocarcinoma, run by Second Affiliated Hospital, Zhejiang University, School of Medicine at 1 site in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The goal of this clinical trial is to compare the efficacy and safety in patients with lymph node-positive HR+/HER2- breast cancer. The main questions it aims to answer are: Can the incorporation of intensified radiation to the tumor (tumor boost) enhance the pCR rate on the basis of neoadjuvant immuno-chemotherapy?… Read more about this study

Who is it for?
Ages 18 to 85 years, women only
Conditions the study is for
Breast Adenocarcinoma
What is being tested?
SBRT and Immuno-chemotherapy
Could I receive a placebo?
No, everyone receives an active treatment
How many people
74 participants
Where
1 siteChina
Study dates
26 Dec 2024to 1 Nov 2027
Phase
Phase 2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 85 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • High-risk HR+/HER2-negative breast cancer is defined as ER≥1%, HER2-negative (<2+ Her2 IHC or <2.2 HER2/CEP17 ratio by FISH) and either histologic grade II-III or a high-risk genomic assay score (Oncotype RS>25, high risk Mammaprint, PAM-50, EndoPredict or ProSigna score). primary tumor size ≥1.0 cm in maximum diameter and axillary node-positive breast cancer;
  • Stage T1-4N+M0 (i.e., Stage II, III), with confirmed N+ by biopsy, and no signs of distant metastasis;
  • The initial PD-L1 expression level conducted on the tumor tissue sample with Combined Positive Score (CPS) or Tumor Proportion Score (TPS)< 10%;
  • ECOG score of 0-1;
  • Screening laboratory values must meet the following criteria: i. White blood cells (WBCs) ≥ 2000/μL ii. Absolute neutrophil count (ANC) ≥ 1500/μL iii. Platelets ≥ 100 x 103/μL iv. Hemoglobin ≥ 11.0 g/dL v. Serum creatinine ≤ 2 mg/dL (or glomerular filtration rate ≥ 40 ml/min) vi. AST ≤ 2.5 x upper limit of normal (ULN) vii. ALT ≤ 2.5 x ULN viii. Total bilirubin within normal limits (except subjects with Gilbert's syndrome, who must have total bilirubin < 3.0 mg/dL) ix. INR ≤ 1.5 x ULN unless participant is receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range of intended use of anticoagulant(s) x. Negative HIV screening test xi. Negative screening tests for Hepatitis B and Hepatitis C. Patients with positive results that do not indicate true active or chronic infection may enroll after discussion and consensus agreement by the treating physician and principal investigator.

Who cannot join

  • Inflammatory breast cancer
  • Life-threatening organ dysfunction or complications, active infectious diseases, active hepatitis B, hepatitis C virus infection, autoimmune diseases within two years, undergoing immunosuppressive drug treatment or chronic systemic corticosteroid therapy (dose exceeding 10mg per day of prednisone or equivalent);
  • Clinically symptomatic heart disease;
  • Previous systemic treatment or radiotherapy for breast cancer;
  • Patients with cosmetic breast implants, i.e., having implants under the skin at the time of diagnosis;
  • Radiotherapy contraindications: history of radiotherapy;
  • Women shall not be breastfeeding.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

China1 site, 1 recruiting
  • 2nd Affiliated Hospital, School of Medicine, Zhejiang University

    Hangzhou, Zhejiang

    Ting Zhang, phD, +86-571-87783521, zezht@zju.edu.cn

    Recruiting

Other trials in China

About this study

Official title: Neoadjuvant Toripalimab and Radiotherapy Treatment in Lymph Nodes Positive HR Positve Breast Cancer(NEOTRIO-HR)

The goal of this clinical trial is to compare the efficacy and safety in patients with lymph node-positive HR+/HER2- breast cancer. The main questions it aims to answer are:

  • Can the incorporation of intensified radiation to the tumor (tumor boost) enhance the pCR rate on the basis of neoadjuvant immuno-chemotherapy?
  • Can it improve the level of residual cancer burden (RCB) and change the tumor immune microenvironment? and How safe will be the combined therapy?
Read more

Participants will be randomly assigned to one of three treatment regimens:

  1. Preoperative toripalimab combined with SBRT targeting both the primary tumor and axillary lymph nodes, followed by chemotherapy;
  2. Preoperative toripalimab combined with SBRT focused solely on the primary tumor, followed by chemotherapy;
  3. Preoperative toripalimab combined with chemotherapy alone.

Following the completion of their respective treatment regimens, participants will proceed to undergo surgery. The effectiveness of the treatments will be assessed through pathological evaluations, as well as by measuring levels of residual cancer burden (RCB) and examining changes in the tumor immune microenvironment.

The study aims to evaluate the safety of these combined treatment approaches and to determine if they offer superior efficacy compared to outcomes reported in previous studies.

Read the detailed description

Breast cancer is a leading malignancy among women globally, with early diagnosis and treatment being crucial for better outcomes. Over 90% of breast cancer patients are diagnosed at an early stage, and approximately two-thirds have the hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR+/HER2-) subtype. Despite this, these patients often exhibit resistance to neoadjuvant chemotherapy, with a pathologic complete response (pCR) rate of only 5-15%, which is significantly lower compared to other subtypes and is associated with poor prognosis. This indicates the necessity for optimizing current treatment strategies.

In recent years, significant advancements have been made in the application of immunotherapy for breast cancer. The studies demonstrated that the addition of immune checkpoint inhibitors to neoadjuvant chemotherapy for patients with high-risk early-stage HR+/HER2- breast cancer significantly improved pCR rates.

Building on these findings, this study proposes a novel strategy of dose-intensified radiation to the tumor (tumor boost) during the neoadjuvant immuno-chemotherapy phase. The advantage of this approach is that it can activate the immune system while the tumor tissue is still intact, providing a rich source of tumor antigens, which aids in enhancing the immune system's recognition and destruction of cancer cells.

Toripalimab is an optimal immunotherapy agent to study, as this agent has recently been approved by the FDA for use in multiple tumor types. It is therefore ready to be tested for efficacy in other disease sites and in combination with other treatments. This study will provide valuable insights into the potential of immunotherapy in combination with radiotherapy to improve outcomes for patients with lymph nodes-positive, high-risk HR+/HER2- breast cancer.

Being tested
SBRT, Immuno-chemotherapy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SBRTRadiation

    Target the primary tumor region with a single dose of 8Gy, or deliver a dose of 3Gy to the axillary lymph nodes, administered once a day for three consecutive days.

  • Immuno-chemotherapyDrug

    Standard new adjuvant treatment with toripalimab combined with chemotherapy, that is in the first phase consisting of paclitaxel and toripalimab for four cycles, followed by epirubicin, cyclophosphamide, and toripalimab for another four cycles.

Study groups in NCT06671262
Study groupRoleWhat they receive
The control groupActive comparatorPatients in this arm receive only a single injection of toripalimab without any radiotherapy as an initial treatment. After a three-week interval, patients receive the standard neoadjuvant chemotherapy in combination with toripalimab, starting with four cycles of paclitaxel and toripalimab, followed by four cycles of epirubicin and toripalimab.
Receives: Drug: Immuno-chemotherapy
The SBRT-combined group 1ExperimentalPatients enrolled in this treatment arm will undergo SBRT focused on the primary tumor, receiving a total dose of 24Gy divided into three fractions over the course of 3 to 5 working days. Following the radiation therapy, toripalimab will be administered between the second and fifth days post-treatment. After a three-week rest period, patients will commence the standard neoadjuvant chemotherapy regimen combined with toripalimab. This regimen will begin with four cycles of paclitaxel combined with toripalimab and followed by four cycles of epirubicin combined with toripalimab.
Receives: Radiation: SBRT; Drug: Immuno-chemotherapy
The SBRT-combined group 2ExperimentalIn this treatment protocol, patients will receive a total radiation dose of 24Gy in three fractions, specifically targeting the primary tumor. Concurrently, the axillary lymph nodes will be treated with a dose of 9Gy in three fractions. This radiation therapy will be conducted over a period of 3 to 5 working days. Following the radiation therapy, toripalimab will be administered between the second and fifth days after the completion of the radiation treatment. After a three-week interval, patients will proceed with the standard neoadjuvant chemotherapy regimen combined with toripalimab. This regimen includes an initial phase of four cycles of paclitaxel paired with toripalimab, which will be followed by a subsequent phase of four cycles of epirubicin paired with toripalimab.
Receives: Radiation: SBRT; Drug: Immuno-chemotherapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. pCR rate

    Pathological Complete Response (pCR) is characterized by the absence of any invasive residual primary tumor in both the breast and lymph nodes. The primary objective of this study is to compare the pCR rates between two treatment approaches: neoadjuvant toripalimab combined with SBRT followed by immuno-chemotherapy, and neoadjuvant toripalimab combined with chemotherapy.

    Measured: At the end of immuno-chemotherapy up to 4-6 months

Secondary outcomes (3)
  1. RCB level

    Residual Cancer Burden (RCB) level is a classification system used to assess the amount of cancer remaining in the breast tissue and lymph nodes after neoadjuvant chemotherapy. It is determined by evaluating several factors including the primary tumor area, the percentage of the tumor area that is invasive cancer, and the extent of lymph node involvement. The RCB index categorizes patients into four groups from group 0 to III indicating none to extensive residual cancer burden.

    Measured: breast surgery up to 4-6 months after trial initiation

  2. TILs

    Changes in the tumor-infiltrating lymphocyte score (TILs), as determined by the Salgado criteria, indicate an engagement of the immune system in cancer, with scores ranging from 0 to 100%. A higher score in TILs correlates with improved patient outcomes. The planned collection of biopsy samples at three critical points-before treatment, after the initial dose of Toripalimab with or without radiation therapy, and at the time of surgical resection-will enable a comprehensive serial evaluation of TILs. This approach will help to quantify the impact of radiation therapy on the immune response induced by Toripalimab.

    Measured: Pre-treatment, post-initial dose of Toripalimab with or without radiation up to 4 weeks, and at surgical resection up to 4-6 months.

  3. SBRT-related Adverse Events

    Treatment toxicities. radiation-related AEs, especially Acute Radiation Dermatitis.

    Measured: at least once a week within 2-4 weeks after the start of radiotherapy.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Nov 2024
  2. Study start26 Dec 2024
  3. Primary completion1 Nov 2026 (estimated)
  4. Study completion1 Nov 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
74 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06671262
Sponsor's protocol ID
Y2024-0857
Acronym
NEOTRIO-HR
Status last verified
Dec 2024
First submitted
10 Oct 2024
Last updated
11 Feb 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing SBRT and Immuno-chemotherapy in people with Breast Adenocarcinoma, run by Second Affiliated Hospital, Zhejiang University, School of Medicine at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 11 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Jian Huang (+86-13958123068, drhuangjian@zju.edu.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

pCR rate (time frame: At the end of immuno-chemotherapy up to 4-6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Feb 2025.

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