Lapatinib Plus Chemotherapy Versus Trastuzumab Plus Chemotherapy in HER2-positive Breast Cancer

Neoplasms, Breast Clinical Trial

Official title:

A Prospective, Open-label，Multicentre，Real-word Study of Lapatinib Plus Chemotherapy Versus Trastuzumab Plus Chemotherapy as Neoadjuvant Therapy for Women With HER2-positive and p95HER2-positive，PI3K Mutation，or PTEN Loss Breast Cancer

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03273595
• Other study ID #: KY20162048-1
• Status: Recruiting
• Phase: Phase 2
• First received: February 22, 2017
• Last updated: September 4, 2017
• Start date: July 2016
• Est. completion date: December 2019

Study information

• Verified date: June 2016
• Source: Xijing Hospital
• Contact: Rui Ling, Doctor
• Phone: +862984775271
• Email: lingrui0105[@]163.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This is a prospective, open-label, real-word study evaluating the efficacy and safety of lapatinib in combination with chemotherapy versus trastuzumab in combination with chemotherapy in women with HER2-positive and p95HER2-positive ,or PI3K mutation, or PTEN loss breast cancer . Eligible subjects will have newly diagnosed breast cancer (Stage II-III) ; not have received systemic or local treatment . The primary endpoint was the rate of pathological complete response (pCR). The secondary objectives are to evaluate overall survival, overall response rate, clinical benefit response rate and the safety as well as tolerability of lapatinib plus chemotherapy and trastuzumab plus chemotherapy.

Patients will receive lapatinib 1000 mg daily or trastuzumab 4 mg/kg intravenous (IV) load followed by 2 mg/kg IV weekly for a total of 12 weeks. After surgery, patients planned total duration of the anti-HER2 therapy will be one year.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 100
• Est. completion date: December 2019
• Est. primary completion date: July 2019
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years to 70 Years

Eligibility

Inclusion Criteria:

• Female gender;

• Age =18 years;

• Performance Status- Eastern Cooperative Oncology Group (ECOG) 0-1

• Histologically confirmed invasive breast cancer:

• Primary tumour greater than 2 cm diameter, measured by clinical examination and mammography or echography,

• p95HER2 positive,or PI3K mutation,or PTEN loss

• Over expression and/or amplification of HER2 in the invasive component of the primary tumour [Wolff et al 2006] and confirmed by a certified laboratory prior to randomisation

• Known hormone receptor status.

• Haematopoietic status:

• Cardiovascular:

• Baseline left ventricular ejection fraction (LVEF) ³ 50% measured by echocardiography (ECHO) or Multiple Gate Acquisition (MUGA) scan,

• Negative serum pregnancy test, within 2-weeks (preferably 7 days) prior to randomization (For women of childbearing potential)

• Fertile patients must use effective contraception (barrier method - condoms, diaphragm
• also in conjunction with spermicidal jelly, or total abstinence. Oral, injectable, or implant hormonal contraceptives are not allowed)

• Signed informed consent form (ICF)

• Patient accepts to make available tumour samples for submission to central laboratory to conduct translational studies as part of this protocol

Exclusion Criteria:

• Received any prior treatment for primary invasive breast cancer;

• Previous (less than 10 years) or current history of malignant neoplasms, except for curatively treated:

• Basal and squamous cell carcinoma of the skin;

• Carcinoma in situ of the cervix.

• Patients with a prior malignancy diagnosed more than 10 years prior to randomisation may enter the study. Patients must have been curatively treated with surgery alone. Radiation therapy or systemic therapy (chemotherapy or endocrine) are NOT permitted. Prior diagnoses of breast cancer or melanoma are excluded.

• Diagnosis of inflammatory breast cancer;

• Bilateral cancer;

• This criterion has been deleted from the protocol Version 1. Patients with multi-focal cancer are no longer excluded.

• Known history of uncontrolled or symptomatic angina, clinically significant arrhythmias, congestive heart failure, transmural myocardial infarction, uncontrolled hypertension (=180/110), unstable diabetes mellitus, dyspnoea at rest, or chronic therapy with oxygen;

• Concurrent disease or condition that would make the subject inappropriate for study participation or any serious medical disorder that would interfere with the subject's safety;

• Unresolved or unstable, serious adverse events from prior administration of another investigational drug;

• Active or uncontrolled infection;

• Dementia, altered mental status, or any psychiatric condition that would prevent the understanding or rendering of ICF;

• Malabsorption syndrome, disease significantly affecting gastrointestinal function, or resection of the stomach or small bowel. Subjects with ulcerative colitis are also excluded;

• Concurrent neoadjuvant cancer therapy (chemotherapy, radiation therapy, immunotherapy, biologic therapy other than the trial therapies);

• Concurrent treatment with an investigational agent or participation in another therapeutic clinical trial;

• Known immediate or delayed hypersensitivity reaction or idiosyncrasy to drugs chemically related to trastuzumab or lapatinib or their excipients;

• Pregnant or lactating women;

• Concomitant use of CYP3A4 inhibitors or inducers

Related Conditions & MeSH terms

• Breast Neoplasms
• Neoplasms, Breast

Intervention

Drug:
• Lapatinib

Biological:
• Trastuzumab

Drug:
• Paclitaxel

• Epirubicin

• Cyclophosphamide

Locations

Country	Name	City	State
China	Xijing Hospital	Xi'an	Shanxi

Sponsors (1)

Lead Sponsor	Collaborator
Xijing Hospital

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	pathological complete response (pCR)		at the end of week 12