Presurgical Therapy With Lapatinib to Explore Molecular Determinants of Response to EGFR/erbB2 Targeted Therapy

University of Pennsylvania1 site in 1 countryJune 2006

ConditionsBreast Cancer

DrugsLapatinib

Overview

Phase: Phase 2
Intervention: Not specified
Conditions: Breast Cancer
Sponsor: University of Pennsylvania
Locations: 1
Primary Endpoint: Change in downstream effector levels in biologic responders to lapatinib as determined by degree of change in proliferation and apoptosis compared to biologic non-responders.
Status: Withdrawn
Last Updated: 10 years ago

Overview Investigators Eligibility Criteria Outcomes Sites Similar Trials

Overview

Brief Summary

The purpose of this study is to see what kinds of breast tumors will respond to lapatinib. Lapatinib is an experimental medicine which may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.

Registry

clinicaltrials.gov

Start Date

June 2006

End Date

December 2009

Last Updated

10 years ago

Study Type

Interventional

Study Design

Single Group

Sex

Female

Investigators

Sponsor

University of Pennsylvania

Responsible Party

Sponsor

Eligibility Criteria

Inclusion Criteria

•Histologically or cytologically-confirmed by either core or fine needle biopsy primary invasive carcinoma of the breast;
•AJCC T2-T3 disease (\>2.0 cm without chest wall or skin invasion) by at least one imaging modality (either mammogram, ultrasound, or MRI) - entry criteria is based on radiologic staging and not final pathologic staging;
•ECOG performance status 0-1 (Karnofsky ≥ 70%
•Any lymph node status, hormone receptor status, and level of erbB2 expression
•No prior chemotherapy, hormonal therapy or radiation therapy to the affected breast for current or previous malignancy;
•Cardiac ejection fraction \>50% or within the institutional range of normal;
•Patients must have normal organ and marrow function defined as: Leukocyte count \>3000/uL; Absolute neutrophil count (ANC) ≥ 1,500/mm3, platelets \> 100,000/mm3, and hemoglobin ≥ 8 gm/dl; Serum creatinine ≤ 1.5 times ULN, or 24-hour creatinine clearance ≥ 75 cc/min; Serum bilirubin ≤ 1.5 times ULN; SGOT ≤ 2.5 times ULN; alkaline phosphatase ≤ 2.5 ULN times ULN.
•The effects of lapatinib on the developing human fetus at the recommended therapeutic dose are unknown. For this reason, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she must inform her treating physician immediately.
•Ability to understand and the willingness to sign written informed consent document.

Exclusion Criteria

•AJCC T1, T4, or stage 4 disease;
•Patients may not have undergone incisional or excisional biopsy of their tumor;
•Patients may not be receiving any other investigational agents;
•Absolute contraindication to MRI imaging (cardiac pacemaker or any non-removable metallic foreign object in the body);
•On chronic therapy with any known inducer or inhibitor of CYP3A4
•Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
•Pregnant or lactating women are excluded from this study because lapatinib is a tyrosine kinase inhibitor with the potential for teratogenic or abortifacient effects.

Outcomes

Primary Outcomes

Change in downstream effector levels in biologic responders to lapatinib as determined by degree of change in proliferation and apoptosis compared to biologic non-responders.

Time Frame: Study completion

Secondary Outcomes

To describe the biologic response rate, defined by induction of apoptosis, to Lapatinib in a pre-surgical, treatment-naïve breast cancer population.(Study completion)