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Tolerability of the Combination of Lapatinib and Trastuzumab in Adults Age 60 or Older With HER2 Positive Locally Advanced or Metastatic Breast Cancer

Tolerability of the Combination of Lapatinib and Trastuzumab in Adults Age 60 or Older With HER2 Positive Locally Advanced or Metastatic Breast Cancer

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01273610
Enrollment
40
Registered
2011-01-10
Start date
2011-04-20
Completion date
2027-04-20
Last updated
2026-06-25

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

Conditions

Breast Neoplasms, Geriatric Health Services, HER2/Neu Positive

Keywords

Breast Neoplasms, HER2 protein, human, Geriatric Health Services, Antineoplastic Agents, Combined, Geriatric Assessment, Pharmacokinetics, Toxicity, Patient Adherence

Brief summary

This phase II trial studies the side effects and how well lapatinib ditosylate and trastuzumab work in treating older patients with human epidermal growth factor receptor 2 (HER2)-positive breast cancer that has spread from where it started to nearby tissue or lymph nodes (locally advanced) or to other parts of the body (metastatic). Lapatinib ditosylate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Monoclonal antibodies, such as trastuzumab, can block tumor growth in different ways. Some block the ability of tumor to grow and spread. Others find tumor cells and help kill them or tumor cancer-killing substances to them. Giving lapatinib ditosylate together with trastuzumab may kill more tumor cells.

Detailed description

PRIMARY OBJECTIVES: I. To estimate the safety and tolerability of the combination of trastuzumab and lapatinib (lapatinib ditosylate) in adults age 60 or older with locally advanced or metastatic breast cancer. SECONDARY OBJECTIVES: I. To describe the full toxicity profile including all grades; to estimate the rate of all grades of cardiac toxicity; to estimate the rate of all grades of diarrhea, nausea, and vomiting. II. To describe the pharmacokinetic parameters of lapatinib in older adults. III. To estimate objective response rate and clinical benefit rate as defined by modified Response Evaluation Criteria In Solid Tumors (RECIST) criteria. IV. To estimate median progression-free and overall survival. V. To explore factors other than chronological age that can affect toxicity rates as identified using a cancer-specific geriatric assessment. VI. To estimate rates of adherence to lapatinib in older adults. OUTLINE: Patients receive lapatinib ditosylate orally (PO) once daily (QD) and trastuzumab intravenously (IV) over 30-90 minutes once weekly OR once every 3 weeks. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up for 30 days and then periodically thereafter.

Interventions

DRUGLapatinib

250 mg tablets

DRUGTrastuzumab

Intravenous injection

OTHERlaboratory biomarker analysis
OTHERpharmacological study

Sponsors

City of Hope Medical Center
Lead SponsorOTHER
GlaxoSmithKline
CollaboratorINDUSTRY
Novartis
CollaboratorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
60 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Locally advanced or metastatic Her2/Neu positive breast cancer (defined as immunohistochemistry \[IHC\] 3+ or a fluorescence in situ hybridization \[FISH\] ratio of \>= 2.0); this may be on either a primary tumor or a metastatic site, and there is no time limit from the time the specimen was obtained; locally advanced breast cancer (LABC) includes breast cancers with advanced primary tumors, i.e., large diameter (at least 5 cm) or those with skin and/or chest wall involvement, and advanced regional lymph node involvement; it also includes a rare subgroup, inflammatory breast cancer; in the 2010 American Joint Committee on Cancer and the International Union for Cancer Control (AJCC-UICC) TNM breast cancer staging system, locally advanced breast cancer (LABC) includes patients with stage III disease; this comprises: * Advanced primary tumors (tumors \> 5 cm in greatest dimension \[T3\]; direct extension to the chest wall and/or to the skin \[T4\]: ulceration, skin nodules, and/or edema (including peau d'orange) confined to the same breast, inflammatory breast cancer \[IBC, T4d\]) * Advanced regional lymph nodes (ipsilateral level I, II axillary lymph nodes that are clinically fixed or matted or clinically detected internal mammary lymph nodes in the absence of axillary lymph node metastases \[N2\], ipsilateral infraclavicular \[level III axillary\] lymph nodes, ipsilateral internal mammary lymph node\[s\] with axillary lymph nodes, or ipsilateral supraclavicular lymph nodes \[N3\]) * Both measurable and non-measurable disease are allowed * Life expectancy of greater than 12 weeks * Women of child-bearing potential and sexually active men must agree to use adequate contraception prior to study entry for six months following duration of study participation * Eastern Cooperative Oncology Group (ECOG) performance status =\< 2 (Karnofsky performance status \>= 60%) * Hemoglobin \>= 10 g/dL (after transfusion if necessary) * Absolute neutrophil count \>= 1,500/mcL * Platelets \>= 100,000/mcL * Total bilirubin within normal institutional limits * Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\])/aspartate aminotransferase (ALT) (serum glutamate pyruvate transaminase \[SGPT\]) =\< 2.5 X institutional upper limit of normal * Creatinine clearance \>= 30 mL/min as measured using either the Cockcroft-Gault method or 24-hour creatinine clearance * The above tests must be obtained within 14 days of study treatment * Cardiac ejection fraction \>= 50% as measured by echocardiogram or multiple gated acquisition scan (MUGA) scan * The ability to swallow and retain oral medication * Prior treatment with lapatinib or trastuzumab are allowed, provided that the agents have never been given in combination * Any number of prior cancer treatments, including investigational agents, chemotherapy, hormone therapy, or targeted therapy are allowed * All patients must have the ability to understand and the willingness to sign a written informed consent

Exclusion criteria

* Concurrent investigational treatment, chemotherapy, or targeted therapy; prior chemotherapy, hormonal therapy, targeted therapy, and investigational agents are allowed but all toxicities grade \>= 2 must have resolved by the time of study commencement (except alopecia) * Unstable or symptomatic brain metastases (however, patients with stable or treated brain metastases who do not require steroids at doses above those permitted for control of symptoms may be enrolled) * History of allergic reactions attributed to compounds of similar chemical or biological composition to lapatinib or trastuzumab; however, patients with a history of infusion reaction to trastuzumab which was controlled with premedication on subsequent infusions without a recurring infusion reaction are eligible * Concomitant medications listed are prohibited; inhibitors or inducers of cytochrome P450 3A4 (CYP3A4) not listed can be used with caution * Ongoing or active infection (including human immunodeficiency virus \[HIV\]) or psychiatric illness/social situations that would limit compliance with study requirements * Inability to take oral medication * Malabsorption syndrome, (prior surgical procedures affecting absorption), or inflammatory gastrointestinal (GI) disease (e.g., Crohn's, ulcerative colitis) which in the opinion of the study coordinator is likely to limit normal absorption of the drug * Current active hepatic or biliary disease (with the exception of patients with Gilbert's syndrome, asymptomatic gallstones, liver metastases, or stable chronic liver disease per investigator assessment) * Active cardiac disease, defined as (but not limited to): * History of documented congestive heart failure (CHF) or systolic dysfunction (left ventricular ejection fraction \[LVEF\] \< 50%) * High-risk uncontrolled arrhythmias (ventricular tachycardia, high-grade atrio-ventricular \[AV\]-block, supraventricular tachycardias which are not adequately rate-controlled) * Angina pectoris requiring antianginal medications * Evidence of transmural infarction on electrocardiogram (ECG) * Clinically significant valvular heart disease * Poorly controlled hypertension (e.g. systolic \> 180 mm HG or diastolic \> 100 mm Hg) * Any other cardiac condition, which in the opinion of the treating physician would make this protocol unreasonably hazardous for the patient * Subjects who, in the opinion of the investigator, may not be able to comply with the safety monitoring requirements of the study are not eligible

Design outcomes

Primary

MeasureTime frameDescription
Percent of Participants With Grade 3 or Higher Non-hematological Toxicities and Symptomatic Congestive Heart FailureUntil 30 days after last dose of treatment, an average of 8 monthsToxicities will be graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. Rates and associated 95% exact Clopper and Pearson binomial confidence limits will be estimated for grade 3 or higher toxicities attributed to lapatinib or trastuzumab.

Secondary

MeasureTime frameDescription
Percent of Participants With a Dose ModificationsWhile on treatment, up to 4.5 yearsRates and associated 95% exact Clopper and Pearson binomial confidence intervals will be estimated. A dose modification was defined as a hold (participant started the dose later than scheduled), reduction (subject was given a lower dose than originally scheduled), or discontinuation (subject stopped treatment) of lapatinib.
Number of Participants With Tumor Response Using Response Evaluation Criteria in Solid Tumors (RECIST)While on treatment, up to 4.5 yearsRECIST: Complete Response (CR): Disappearance of all target lesions. Lymph node CR is when the lymph node has decreased to less than 10mm in the short axis. Partial Response (PR): At least a 30% decrease in the sum of the longest diameter (LD) of target lesions, taking as reference the baseline sum LD. Progressive Disease (PD): At least a 20% increase in the sum of the LD of target lesions, taking as reference the smallest sum LD recorded since the treatment started (including the baseline scan if that is the smallest), and at least a 5mm increase or the appearance of new lesions. Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum LD since the treatment started.
Median Progression-free Survival (PFS)From the date treatment begins until the first date on which recurrence, progression or death due to any cause, with an average follow up of 1 year.Median PFS and associated 95% exact Clopper and Pearson binomial confidence limits will be estimated across all ages per protocol plan. Progression is defined using RECIST v1.0, as at least a 20% increase in the sum of the LD of target lesions, taking as reference the smallest sum LD recorded since the treatment started (including the baseline scan if that is the smallest), and at least a 5mm increase or the appearance of new lesions.
Median Overall Survival (OS)Time from start of treatment to death due to any cause, with average follow up of 4.5 yearsOS will be estimated using the product limit method of Kaplan and Meier across all ages per protocol plan.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORDaneng Li, MD

City of Hope Medical Center

Participant flow

Participants by arm

ArmCount
Age ≤75
Participants 75 years of age and under receive lapatinib ditosylate 250mg PO QD and trastuzumab IV once weekly OR once every 3 weeks. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
30
Age >75
Participants over 75 years of age receive lapatinib ditosylate 250mg PO QD and trastuzumab IV once weekly OR once every 3 weeks. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
10
Total40

Baseline characteristics

CharacteristicTotalAge >75Age ≤75
Age, Continuous72 years84 years68 years
ECOG performance status
Ambulatory and capable of selfcare but unable to do work activities; up and about >50% waking hours
2 Participants1 Participants1 Participants
ECOG performance status
Fully active, able to carry on all pre-disease performance without restriction
23 Participants4 Participants19 Participants
ECOG performance status
Restricted in physically strenuous activity but ambulatory and able to do work of a light nature
15 Participants5 Participants10 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants1 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
37 Participants9 Participants28 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
3 Participants1 Participants2 Participants
Race (NIH/OMB)
Black or African American
4 Participants3 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
33 Participants6 Participants27 Participants
Region of Enrollment
United States
40 participants10 participants30 participants
Sex: Female, Male
Female
39 Participants9 Participants30 Participants
Sex: Female, Male
Male
1 Participants1 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
19 / 307 / 10
other
Total, other adverse events
30 / 309 / 10
serious
Total, serious adverse events
8 / 306 / 10

Outcome results

Primary

Percent of Participants With Grade 3 or Higher Non-hematological Toxicities and Symptomatic Congestive Heart Failure

Toxicities will be graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. Rates and associated 95% exact Clopper and Pearson binomial confidence limits will be estimated for grade 3 or higher toxicities attributed to lapatinib or trastuzumab.

Time frame: Until 30 days after last dose of treatment, an average of 8 months

ArmMeasureValue (NUMBER)
Age ≤75Percent of Participants With Grade 3 or Higher Non-hematological Toxicities and Symptomatic Congestive Heart Failure17 percentage of participants
Age >75Percent of Participants With Grade 3 or Higher Non-hematological Toxicities and Symptomatic Congestive Heart Failure30 percentage of participants
Secondary

Median Overall Survival (OS)

OS will be estimated using the product limit method of Kaplan and Meier across all ages per protocol plan.

Time frame: Time from start of treatment to death due to any cause, with average follow up of 4.5 years

ArmMeasureValue (MEDIAN)
Age ≤75Median Overall Survival (OS)30.8 months
Secondary

Median Progression-free Survival (PFS)

Median PFS and associated 95% exact Clopper and Pearson binomial confidence limits will be estimated across all ages per protocol plan. Progression is defined using RECIST v1.0, as at least a 20% increase in the sum of the LD of target lesions, taking as reference the smallest sum LD recorded since the treatment started (including the baseline scan if that is the smallest), and at least a 5mm increase or the appearance of new lesions.

Time frame: From the date treatment begins until the first date on which recurrence, progression or death due to any cause, with an average follow up of 1 year.

ArmMeasureValue (MEDIAN)
Age ≤75Median Progression-free Survival (PFS)2.7 months
Secondary

Number of Participants With Tumor Response Using Response Evaluation Criteria in Solid Tumors (RECIST)

RECIST: Complete Response (CR): Disappearance of all target lesions. Lymph node CR is when the lymph node has decreased to less than 10mm in the short axis. Partial Response (PR): At least a 30% decrease in the sum of the longest diameter (LD) of target lesions, taking as reference the baseline sum LD. Progressive Disease (PD): At least a 20% increase in the sum of the LD of target lesions, taking as reference the smallest sum LD recorded since the treatment started (including the baseline scan if that is the smallest), and at least a 5mm increase or the appearance of new lesions. Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum LD since the treatment started.

Time frame: While on treatment, up to 4.5 years

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Age ≤75Number of Participants With Tumor Response Using Response Evaluation Criteria in Solid Tumors (RECIST)Not evaluable5 Participants
Age ≤75Number of Participants With Tumor Response Using Response Evaluation Criteria in Solid Tumors (RECIST)Partial response (PR)7 Participants
Age ≤75Number of Participants With Tumor Response Using Response Evaluation Criteria in Solid Tumors (RECIST)Stable Disease (SD)6 Participants
Age ≤75Number of Participants With Tumor Response Using Response Evaluation Criteria in Solid Tumors (RECIST)Progressive Disease12 Participants
Age ≤75Number of Participants With Tumor Response Using Response Evaluation Criteria in Solid Tumors (RECIST)Complete response (CR)0 Participants
Age >75Number of Participants With Tumor Response Using Response Evaluation Criteria in Solid Tumors (RECIST)Progressive Disease0 Participants
Age >75Number of Participants With Tumor Response Using Response Evaluation Criteria in Solid Tumors (RECIST)Complete response (CR)1 Participants
Age >75Number of Participants With Tumor Response Using Response Evaluation Criteria in Solid Tumors (RECIST)Stable Disease (SD)3 Participants
Age >75Number of Participants With Tumor Response Using Response Evaluation Criteria in Solid Tumors (RECIST)Not evaluable5 Participants
Age >75Number of Participants With Tumor Response Using Response Evaluation Criteria in Solid Tumors (RECIST)Partial response (PR)1 Participants
Secondary

Percent of Participants With a Dose Modifications

Rates and associated 95% exact Clopper and Pearson binomial confidence intervals will be estimated. A dose modification was defined as a hold (participant started the dose later than scheduled), reduction (subject was given a lower dose than originally scheduled), or discontinuation (subject stopped treatment) of lapatinib.

Time frame: While on treatment, up to 4.5 years

ArmMeasureValue (NUMBER)
Age ≤75Percent of Participants With a Dose Modifications37 percentage of participants
Age >75Percent of Participants With a Dose Modifications60 percentage of participants

Source: ClinicalTrials.gov · Data processed: Jun 26, 2026