Skip to content

Lapatinib Ditosylate in Treating Patients With Ductal Breast Carcinoma In Situ

Neoadjuvant Trial of Lapatinib for the Treatment of Women With DCIS Breast Cancer

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00555152
Enrollment
22
Registered
2007-11-07
Start date
2009-08-19
Completion date
2014-08-28
Last updated
2018-04-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ductal Breast Carcinoma In Situ, HER2/Neu Positive

Brief summary

This randomized phase I/II trial studies the side effects and best dose of lapatinib ditosylate and to see how well it works in treating patients with ductal breast carcinoma in situ. Lapatinib ditosylate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.

Detailed description

PRIMARY OBJECTIVES: I. Determine whether lapatinib (lapatinib ditosylate) therapy at the dose of 1000 mg results in a statistically significantly lower rate of proliferation in ductal carcinoma in situ (DCIS) breast cancer cells as measured by Ki67 when compared to placebo. II. Determine the toxicity profile and frequency of adverse events in women with DCIS breast cancer taking lapatinib at 1000 mg as compared to women taking placebo. SECONDARY OBJECTIVES: I. Determine whether lapatinib treatment affects the incidence of DCIS seen at the time of surgical excision. II. Determine whether treatment with lapatinib will modulate breast tissue histology or the expression of specific biomarkers in normal and DCIS breast cancer cells. OUTLINE: Patients are randomized to 1 of 2 treatment arms. ARM I: Patients receive lapatinib ditosylate orally (PO) once daily (QD) for 2-6 weeks until the time of surgery. ARM II: Patients receive placebo PO QD for 2-6 weeks until the time of surgery. After completion of study treatment, patients are followed for 4-5 weeks.

Interventions

OTHERLaboratory Biomarker Analysis

Correlative studies

DRUGLapatinib Ditosylate

Given PO

OTHERPlacebo

Given PO

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
FEMALE
Age
21 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participants must be premenopausal or postmenopausal * Participants must have a diagnosis of ductal carcinoma in situ made by core needle biopsy * The DCIS cells must have high expression of human epidermal growth factor receptor 2 (erbB2) (3+ by immunohistochemical staining or amplification by fluorescence in situ hybridization \[FISH\]), and/or have detectable expression of epidermal growth factor receptor (EGFR) (1+ or more by immunohistochemical staining) * All participants must be informed of the investigational nature of this study and must sign and give written informed consent in accordance with institutional and federal guidelines * Individuals with a diagnosis of breast cancer, non-melanoma skin cancer, cervical cancer in situ, or early bladder cancer are eligible if they have not been treated with chemotherapy, biological therapy, or breast radiotherapy to the breast currently affected by DCIS within one year; in addition, individuals with a diagnosis of breast cancer may not have used tamoxifen, raloxifene, or other antiestrogen compounds within three months of study day 1 * If subjects are of reproductive potential, they must agree to use a reliable contraceptive method or be sexually abstinent; subjects must fulfill these conditions beginning at the time of starting study medications and ending one month after study termination * Negative serum pregnancy test (beta-human chorionic gonadotropin \[HCG\]) at baseline (within 30 days of day 0) for women of child bearing potential * Serum creatinine =\< 1.5 times the institution?s upper limit of normal * Total bilirubin =\< 1.5 times the institution's upper limits of normal * Serum glutamic oxaloacetic transaminase (SGOT) =\< 1.5 times the institution's upper limits of normal * Alkaline phosphatase =\< 1.5 times the institution's upper limits of normal * Albumin =\< 1.5 times the institution's upper limits of normal * White blood cells (WBC) \> 4.0 k/uL * Platelet count \> 100,000/uL * Hematocrit of \> 30% * Cardiac ejection fraction within normal limits for the institution by multi gated acquisition scan (MUGA) scan or normal cardiac ultrasound (defined as within the upper limit of normal \[ULN\] for the institution) * Eastern Cooperative Oncology Group (ECOG) performance status =\< 2 * Willingness to refrain from donating blood to others during the study

Exclusion criteria

* Individuals are ineligible if they have either active cancer or a prior history of malignancies other than (e.g., breast cancer, skin cancer \[basal or squamous cell carcinoma\], cervical cancer in situ, or early bladder cancer \[preinvasive transitional cell carcinoma of the bladder\]) within the past five years * Participants are ineligible if they are currently being treated with tamoxifen, raloxifene, or with aromatase inhibitors (letrozole, anastrozole, exemestane) * Individuals are ineligible if they have received chemotherapy, biological therapy (e.g., Herceptin), or radiotherapy for the treatment of any cancer within 1 year or if they have received tamoxifen, raloxifene, letrozole, anastrozole, or exemestane therapy within 3 months of study day 1 * Individuals currently receiving anticoagulation therapy (e.g., Coumadin) are ineligible * Blood urea nitrogen \[BUN\] \> 1.5 x ULN or * Creatinine \[Cr\] \> 1.5 x ULN * SGOT \> 1.5 x ULN * Serum glutamate pyruvate transaminase (SGPT) \> 1.5 x ULN * Alkaline phosphatase \> 1.5 x ULN * Bilirubin \> 1.5x ULN * Individuals who are currently participating in a study of an investigational drug * Pregnancy, lactation or unwillingness to use a reliable contraceptive method in women of childbearing potential * Severe underlying chronic illness or disease, such as uncontrolled diabetes * Individuals with known congestive heart disease or previous myocardial infarction are ineligible * Patients taking any prohibited medications * Individuals with hypokalemia or hypomagnesemia are ineligible unless these conditions are corrected to within normal limits before starting drug * Individuals with congenital long QT syndrome or baseline QTcF intervals \> 480 msec on electrocardiogram (EKG) * Individuals taking anti-arrhythmics, beta blockers, or other medications that may lead to QT prolongation * Individuals who have received a cumulative dose of anthracycline therapy greater than 500 mg/m\^2 are ineligible

Design outcomes

Primary

MeasureTime frameDescription
Proliferation (Ki67 IHC) in Ductal Breast Carcinoma In Situ (DCIS)2-6 weeks from baseline to surgery, up to 6 weeksReduction in percent of Ki67 positive cells at surgery compared to baseline as a function of treatment. Analysis of the primary treatment comparison will be based on a two sample t-test comparing change in log-transformed Ki67% for placebo and treated subjects. P-values of 0.05 will be considered significant. Proliferation will be assessed by immunohistochemical (IHC) staining for Ki67, and the change in percentage of Ki67 positive cells will be compared in lapatinib-treated samples versus placebo.
Incidence of Adverse Events Graded According to the National Cancer Institute (NCI) Common Terminology Criteria (CTCAE) Version 3.0From baseline to 4-5 weeks after surgeryToxicity profile summarized reflects incidence by number of participants affected with adverse events by Maximum Grade 1 to 3, additional adverse event according to the NCI CTCAE version 3.0 reported in Adverse Event section results.

Secondary

MeasureTime frameDescription
Incidence of Ductal Carcinoma in Situ Remaining at Resection2-6 weeks from baseline to surgery, up to 6 weeksNumber of participants with DCIS incidence on surgical excision. Differences in histologic response (disappearance of DCIS) will be evaluated using Fisher's exact test. Correlation analysis and linear models will be used to evaluate associations among marker values at baseline and among changes in marker values and treatment. All statistical tests will be two-sided.
Biomarker Analysis of Proliferation Markers2-6 weeks from baseline to surgery, Up to 6 weeksCorrelation analysis and linear models will be used to evaluate associations among marker values at baseline and among changes in marker values and treatment. All statistical tests will be two-sided.

Countries

United States

Participant flow

Recruitment details

Activated 1/17/2008 at Baylor College of Medicine (BCM), MD Anderson Cancer Center, Dana-Farber Cancer Institute, Mayo Clinic, Georgetown University & Walter Reed Army Medical Center; closed at BCM 3/8/2010, re-activated 9/19/2011 at MD Anderson, Dana-Farber Cancer Institute, Mayo Clinic & University of Alabama, Birmingham, closed 8/28/2014.

Pre-assignment details

A total of 22 participants were enrolled and randomized to 3 of 4 treatment arms; Two of the 4 initial arms were removed in the second period with one of those having no enrollment. Three participants were enrolled while the study was open at BCM, the other 19 were enrolled after the study was transferred to MD Anderson (second study period).

Participants by arm

ArmCount
Arm I Lapatinib 1500 mg
Lapatinib ditosylate 1500 mg orally once daily for 2-6 weeks until the time of surgery.
2
Arm II Lapatinib 1000 mg
Lapatinib 1000 mg orally once daily for 2-6 weeks until the time of surgery.
10
Arm III Lapatinib 750 mg
Lapatinib 750 mg orally once daily for 2-6 weeks until the time of surgery.
0
Arm IV Placebo
Placebo orally once daily for 2-6 weeks until the time of surgery.
10
Total22

Baseline characteristics

CharacteristicArm I Lapatinib 1500 mgTotalArm IV PlaceboArm II Lapatinib 1000 mg
Age, Continuous46 years
STANDARD_DEVIATION 9.5
51.3 years
STANDARD_DEVIATION 9.3
52 years
STANDARD_DEVIATION 8.4
51.7 years
STANDARD_DEVIATION 10.7
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants3 Participants2 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
2 Participants19 Participants8 Participants9 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants0 Participants
Race (NIH/OMB)
White
2 Participants20 Participants9 Participants9 Participants
Region of Enrollment
United States
2 participants22 participants10 participants10 participants
Sex: Female, Male
Female
2 Participants22 Participants10 Participants10 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
2 / 29 / 100 / 08 / 10
serious
Total, serious adverse events
0 / 20 / 100 / 01 / 10

Outcome results

Primary

Incidence of Adverse Events Graded According to the National Cancer Institute (NCI) Common Terminology Criteria (CTCAE) Version 3.0

Toxicity profile summarized reflects incidence by number of participants affected with adverse events by Maximum Grade 1 to 3, additional adverse event according to the NCI CTCAE version 3.0 reported in Adverse Event section results.

Time frame: From baseline to 4-5 weeks after surgery

ArmMeasureGroupValue (NUMBER)
Arm I Lapatinib 1500 mgIncidence of Adverse Events Graded According to the National Cancer Institute (NCI) Common Terminology Criteria (CTCAE) Version 3.0Grade 22 participants
Arm I Lapatinib 1500 mgIncidence of Adverse Events Graded According to the National Cancer Institute (NCI) Common Terminology Criteria (CTCAE) Version 3.0Grade 30 participants
Arm I Lapatinib 1500 mgIncidence of Adverse Events Graded According to the National Cancer Institute (NCI) Common Terminology Criteria (CTCAE) Version 3.0Grade 10 participants
Arm II Lapatinib 1000 mgIncidence of Adverse Events Graded According to the National Cancer Institute (NCI) Common Terminology Criteria (CTCAE) Version 3.0Grade 13 participants
Arm II Lapatinib 1000 mgIncidence of Adverse Events Graded According to the National Cancer Institute (NCI) Common Terminology Criteria (CTCAE) Version 3.0Grade 30 participants
Arm II Lapatinib 1000 mgIncidence of Adverse Events Graded According to the National Cancer Institute (NCI) Common Terminology Criteria (CTCAE) Version 3.0Grade 26 participants
Arm IV PlaceboIncidence of Adverse Events Graded According to the National Cancer Institute (NCI) Common Terminology Criteria (CTCAE) Version 3.0Grade 23 participants
Arm IV PlaceboIncidence of Adverse Events Graded According to the National Cancer Institute (NCI) Common Terminology Criteria (CTCAE) Version 3.0Grade 14 participants
Arm IV PlaceboIncidence of Adverse Events Graded According to the National Cancer Institute (NCI) Common Terminology Criteria (CTCAE) Version 3.0Grade 31 participants
Primary

Proliferation (Ki67 IHC) in Ductal Breast Carcinoma In Situ (DCIS)

Reduction in percent of Ki67 positive cells at surgery compared to baseline as a function of treatment. Analysis of the primary treatment comparison will be based on a two sample t-test comparing change in log-transformed Ki67% for placebo and treated subjects. P-values of 0.05 will be considered significant. Proliferation will be assessed by immunohistochemical (IHC) staining for Ki67, and the change in percentage of Ki67 positive cells will be compared in lapatinib-treated samples versus placebo.

Time frame: 2-6 weeks from baseline to surgery, up to 6 weeks

Population: No outcome data available due to laboratory issues affecting the analysis of biomarkers results.

Secondary

Biomarker Analysis of Proliferation Markers

Correlation analysis and linear models will be used to evaluate associations among marker values at baseline and among changes in marker values and treatment. All statistical tests will be two-sided.

Time frame: 2-6 weeks from baseline to surgery, Up to 6 weeks

Population: No outcome data available due to laboratory issues affecting the analysis of biomarkers results.

Secondary

Incidence of Ductal Carcinoma in Situ Remaining at Resection

Number of participants with DCIS incidence on surgical excision. Differences in histologic response (disappearance of DCIS) will be evaluated using Fisher's exact test. Correlation analysis and linear models will be used to evaluate associations among marker values at baseline and among changes in marker values and treatment. All statistical tests will be two-sided.

Time frame: 2-6 weeks from baseline to surgery, up to 6 weeks

Population: DCIS was present at the time of surgery in all patients.

ArmMeasureGroupValue (NUMBER)
Arm I Lapatinib 1500 mgIncidence of Ductal Carcinoma in Situ Remaining at ResectionPresent2 participants
Arm I Lapatinib 1500 mgIncidence of Ductal Carcinoma in Situ Remaining at ResectionAbsent0 participants
Arm II Lapatinib 1000 mgIncidence of Ductal Carcinoma in Situ Remaining at ResectionPresent10 participants
Arm II Lapatinib 1000 mgIncidence of Ductal Carcinoma in Situ Remaining at ResectionAbsent0 participants
Arm IV PlaceboIncidence of Ductal Carcinoma in Situ Remaining at ResectionPresent10 participants
Arm IV PlaceboIncidence of Ductal Carcinoma in Situ Remaining at ResectionAbsent0 participants
p-value: 1Fisher Exact

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026