Stage I HER2 Positive Invasive Breast Cancer De-escalation Study(IRIS)

NCT04383275 | Recruiting Phase 2

• 1 other identifier: SCHBCC-N030
• Study Type: interventional
• Target: 356
• Locations: 1 country
• Sites: 1

Brief Summary

This is an open label, phase II study evaluating the efficacy and safety of trastuzumab combined with oral chemotherapy or endocrine therapy in patients with HER-2 positive stage I breast cancer.

Conditions

Breast Cancer

Outcome Measures

Primary Outcomes (1)

• iDFS

  invasive disease-free survival

  5 years

Secondary Outcomes (2)

• DDFS

  5 years

• OS

  5 years

Study Arms (2)

IRIS-A

EXPERIMENTAL

Drug: capecitabine and trastuzumab

IRIS-B

EXPERIMENTAL

Drug: endocrine therapy and trastuzumab

Interventions

capecitabine and trastuzumab DRUG

In IRIS-A cohort, patients who met the inclusion criteria(ER，PR\<10%, T≤2cm or ER,PR ≥10% 1cm\<T≤2cm）would be given capecitabine for 6 cycles with standard trastuzumab for 1 year, in which HR+ patients would be given endocrine therapy for 5 years.

IRIS-A

endocrine therapy and trastuzumab DRUG

In IRIS-B cohort, patients who met the inclusion criteria(ER,PR ≥10% T≤1cm) would be given endocrine therapy (premenopausal: tamoxifen or toremifene; postmenopausal: letrozole or anastrozole or exemestane) combined with standard trastuzumab for 1 year and complete endocrine therapy for 5 years.

IRIS-B

Eligibility Criteria

• Age: 18 Years - 70 Years
• Sex: female
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Females 18-70 years old;
• Pathological confirmed of stage I breast cancer: histologically confirmed that the longest diameter of invasive cancer is no more than 2cm and the lymph node is negative (N0);
• In IRIS-A cohort, if a patient is HR negative(ER/PR\<10%), the longest diameter of invasive cancer could not exceed 2cm; while if a patient is HR positive(ER and/or PR ≥10%）,the longest diameter of invasive cancer is greater than 1cm and no more than 2cm;
• In IRIS-B cohort, a patient need to be HR positive (ER and / or PR expression ≥10%) and the longest diameter of invasive cancer could not exceed 1cm;
• The pathological type of immunohistochemistry must meet the following conditions: HER-2 (3+) or HER-2 (0-2 +) with FISH detection is amplified;
• For patients with invasive lesions on both sides, if both lesions are HER-2 positive and meet the tumor size requirements, then can be enrolled;
• Has adequate organ function meeting the following criteria: (1) adequate bone marrow function: hemoglobin ≥ 90 g/L (no blood transfusion within 14 days); absolute neutrophil count ≥ 1.5 x 109 /L; platelet count ≥ 100 \* 109 /L; (2)adequate liver and kidney function: Alanine Aminotransferase (ALT) ≤ 3×upper limit of normal (ULN), Aspartate Aminotransferase (AST) ≤ 3×ULN, Total Bilirubin (TBIL)≤ 1.5×ULN, serum creatinine ≤ 1×ULN#and with endogenous creatinine clearance rate of \>50 ml/min (Cockcroft-Gault formula);
• LVEF\>50%;
• The patient voluntarily joined the study, signed the informed consent form, had good compliance, and cooperated with the follow-up.

You may not qualify if:

• Has received neoadjuvant therapy (include chemotherapy, targeted therapy, radiotherapy or endocrine therapy;
• Has previous history of additional malignancy, with the exception of adequately treated basal cell carcinoma and cervical carcinoma in situ;
• Has metastic (Stage 4) breast cancer;
• Pregnant or breast feeding women, or women of childbearing age who cannot practice effective contraceptives;
• Patients participating in other clinical trials at the same time;
• Has severe organ dysfunction (cardiopulmonary liver and kidney) insufficiency, left ventricular ejection fraction (LVEF) \< 50% (cardiac ultrasound); severe cardio cerebral vascular disease within the 6 months previous of randomization (such as unstable angina, chronic heart failure, uncontrolled hypertension with blood pressure\>150/90mmHg, myocardial infarction, or cerebral blood vessel); diabetic patients with poor blood glucose control; patients with severe hypertension;
• Has severe or uncontrolled infection;
• Has a history of psychotropic substance abuse and were unable to abandon drug habits, or those with history of mental disorders;
• The researchers considered patients to be unsuitable for the study.

Sponsors & Collaborators

• Fudan University: lead

Study Sites (1)

Breast cancer institute of Fudan University Cancer Hospital

Shanghai, Shanghai Municipality, 200032, China

RECRUITING

MeSH Terms

Conditions

Breast Neoplasms

Interventions

Capecitabine; Trastuzumab

Condition Hierarchy (Ancestors)

Neoplasms by Site; Neoplasms; Breast Diseases; Skin Diseases; Skin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

Deoxycytidine; Cytidine; Pyrimidine Nucleosides; Pyrimidines; Heterocyclic Compounds, 1-Ring; Heterocyclic Compounds; Fluorouracil; Uracil; Pyrimidinones; Deoxyribonucleosides; Nucleosides; Nucleic Acids, Nucleotides, and Nucleosides; Antibodies, Monoclonal, Humanized; Antibodies, Monoclonal; Antibodies; Immunoglobulins; Immunoproteins; Blood Proteins; Proteins; Amino Acids, Peptides, and Proteins; Serum Globulins; Globulins

Central Study Contacts

Zhimin Shao, MD

CONTACT

+86-021-64175590; zhimingshao@yahoo.com

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor, Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery

Study Record Dates

• First Submitted: May 7, 2020
• First Posted: May 12, 2020
• Study Start: August 23, 2021
• Primary Completion: May 15, 2025
• Study Completion (Estimated): May 15, 2027
• Last Updated: March 22, 2024

Record last verified: 2024-03

Locations

CN (1)