- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00095667
Lapatinib in Treating Patients With Recurrent or Metastatic Prostate Cancer
A Phase 2 Study of GW572016 in Hormone Naive Recurrent or Metastatic Hormone Sensitive Prostate Cancer
Study Overview
Status
Intervention / Treatment
Detailed Description
PRIMARY OBJECTIVES:
I. To determine the antitumor activity of GW572016 in hormone naïve, recurrent and/or metastatic hormone sensitive prostate cancer using PSA response rate.
SECONDARY OBJECTIVES:
I. To estimate objective tumor response in patients with measurable disease. II. To determine the duration of PSA response, rate and duration of stable disease, progression-free, median and overall survival rates of GW572016 in recurrent and/or metastatic prostate cancer.
III. To document the safety and tolerability of GW572016 in these patient populations.
TERTIARY OBJECTIVES:
I. To investigate if differences in baseline levels of EGFR and/or erbB2 expression, and receptor phosphorylation status in tumor specimens predict outcome to therapy.
II. To investigate if the inhibitory effects of GW572016 on EGFR and/or erbB2 pathway activation in tumor specimens correlates with clinical outcome.
OUTLINE: This is a nonrandomized, open-label, multicenter study.
Patients receive oral lapatinib once daily on days 1-28. Courses repeat every 28 days in the absence of unacceptable toxicity or disease progression.
Patients are followed for survival.
PROJECTED ACCRUAL: A total of 21-41 patients will be accrued for this study within 11.7 months.
Study Type
Enrollment (Anticipated)
Phase
- Phase 2
Contacts and Locations
Study Locations
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-
Ontario
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Toronto, Ontario, Canada, M5G 2M9
- Princess Margaret Hospital Phase 2 Consortium
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patients must have histologically or cytologically confirmed prostate cancer that is recurrent after local therapy, and/or metastatic carcinoma confirmed to be of prostate origin
Patients must have recurrent and/or metastatic disease that is progressive and not amenable to surgery or curative radiotherapy; progressive disease is defined as:
- Three consecutive rising PSAs, at least 4 weeks apart with an absolute increase of at least 0.5
- PSA doubling time of less than one year
- PSA > 2.0
- For recurrent disease following local therapy (surgery/radiation), prior neoadjuvant or adjuvant hormones are allowed if completed more than a year prior to study entry; for metastatic disease, no prior medical therapy (hormonal, corticosteroid, chemotherapy) is allowed
- Life expectancy of greater than 12 weeks
- ECOG performance status 0,1, or 2
- Leukocytes >= 3,000/uL
- Absolute neutrophil count >= 1,500/uL
- Platelets >= 100,000/uL
- Total bilirubin within normal institutional limits
- AST(SGOT)/ALT(SGPT) =< 2.5 X institutional upper limit of normal
- Creatinine within normal institutional limits or creatinine clearance >= 60 mL/min/1.73 m^2 for patients with creatinine levels above institutional normal
- Cardiac ejection fraction within the institutional range of normal as measured by echocardiogram or MUGA scan; note that baseline and on treatment scans should be performed using the same modality and preferably at the same institution
- Must be willing and able to undergo tumor biopsy once before (if no previous specimen available) and once during investigational therapy if there are lesions accessible for biopsy for correlative studies; in cases where there is a medical contraindication to tumor biopsy, exception may be granted only upon discussion with the principal investigator
- Eligibility of patients receiving medications or substances known to affect, or with the potential to affect the activity or pharmacokinetics of GW572016 will be determined following review of their use by the principal investigator
- Patients requiring oral anticoagulants (coumadin, warfarin) are eligible provided there is increased vigilance with respect to monitoring INR
- Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control or 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 should inform her treating physician immediately
- Ability to understand and the willingness to sign a written informed consent document
- Able to swallow and retain oral medication
Exclusion Criteria:
Prior treatment:
- Patients who have had prior chemotherapy for prostate cancer
- Patients who have been on androgen ablative therapies within the last year
- Patients receiving radiotherapy to the prostate less than 6 weeks prior to study entry
- Patients who have had prior treatment with EGFR targeting therapies
- Patients who have not recovered from adverse events due to agents administered more than 4 weeks earlier
- Patients may not be receiving any other investigational agents or receiving concurrent anticancer therapy
- Patients with a history of other active malignancy in the past 5 years (with the exception of adequately treated non-melanomatous skin cancers) are excluded
- History of allergic reactions attributed to compounds of similar chemical or biological composition to GW572016
- 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
- Patients with cardiac ejection fraction, not within the institutional range of normal as measured by echocardiogram or MUGA scan at baseline
- Patients with GI tract disease resulting in an inability to take oral medication, malabsorption syndrome, a requirement for IV alimentation, prior surgical procedures affecting absorption, uncontrolled inflammatory GI disease (e.g., Crohn's, ulcerative colitis)
- Concomitant requirement for medication classified as CYP3A4 inducer or inhibitor
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Treatment (lapatinib ditosylate)
Patients receive oral lapatinib once daily on days 1-28.
Courses repeat every 28 days in the absence of unacceptable toxicity or disease progression.
|
Correlative studies
Given orally
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
PSA response rate defined as at least a 50% fall in PSA from baseline confirmed by a second PSA 4 weeks later
Time Frame: Up to 3 years
|
Up to 3 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Objective tumor response
Time Frame: Up to 3 years
|
Potential association between variables will be measured using Pearson correlation coefficients, chi-square tests, one- or two-sample t-tests or logistic regression analyses as appropriate.
Non-parametric tests such as Spearman correlation coefficients, Fisher's exact tests and Wilcoxon tests may be substituted if necessary.
Ninety-five percent confidence intervals will be constructed and selected results will be illustrated using figures and plots.
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Up to 3 years
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Duration of PSA response
Time Frame: Up to 3 years
|
Potential association between variables will be measured using Pearson correlation coefficients, chi-square tests, one- or two-sample t-tests or logistic regression analyses as appropriate.
Non-parametric tests such as Spearman correlation coefficients, Fisher's exact tests and Wilcoxon tests may be substituted if necessary.
Ninety-five percent confidence intervals will be constructed and selected results will be illustrated using figures and plots.
|
Up to 3 years
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Rate and duration of stable disease
Time Frame: From the start of the treatment until the criteria for progression are met, assessed up to 3 years
|
Potential association between variables will be measured using Pearson correlation coefficients, chi-square tests, one- or two-sample t-tests or logistic regression analyses as appropriate.
Non-parametric tests such as Spearman correlation coefficients, Fisher's exact tests and Wilcoxon tests may be substituted if necessary.
Ninety-five percent confidence intervals will be constructed and selected results will be illustrated using figures and plots.
|
From the start of the treatment until the criteria for progression are met, assessed up to 3 years
|
Progression-free survival
Time Frame: From start of treatment to time criteria are met for disease progression, assessed up to 3 years
|
Will be computed using the Kaplan-Meier method.
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From start of treatment to time criteria are met for disease progression, assessed up to 3 years
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Overall survival
Time Frame: Up to 3 years
|
Will be computed using the Kaplan-Meier method.
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Up to 3 years
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Safety and tolerability assessed using National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.0
Time Frame: Up to 3 years
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Frequency and severity of adverse events will be tabulated using counts and proportions detailing frequently occurring, serious and severe events of interest.
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Up to 3 years
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: John Trachtenberg, Princess Margaret Hospital Phase 2 Consortium
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- NCI-2012-03178
- N01CM62203 (U.S. NIH Grant/Contract)
- PHL-030
- CDR394173
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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