Recurrent Prostate Cancer Clinical Trial
Official title:
A Phase 2 Study of GW572016 in Hormone Naive Recurrent or Metastatic Hormone Sensitive Prostate Cancer
Verified date | May 2013 |
Source | National Cancer Institute (NCI) |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Food and Drug Administration |
Study type | Interventional |
Lapatinib may stop the growth of tumor cells by blocking the enzymes necessary for their growth. Phase II trial to study the effectiveness of lapatinib in treating patients who have recurrent or metastatic prostate cancer.
Status | Completed |
Enrollment | 41 |
Est. completion date | |
Est. primary completion date | November 2007 |
Accepts healthy volunteers | No |
Gender | Male |
Age group | 18 Years and older |
Eligibility |
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 |
Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
Canada | Princess Margaret Hospital Phase 2 Consortium | Toronto | Ontario |
Lead Sponsor | Collaborator |
---|---|
National Cancer Institute (NCI) |
Canada,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | PSA response rate defined as at least a 50% fall in PSA from baseline confirmed by a second PSA 4 weeks later | Up to 3 years | No | |
Secondary | Objective tumor response | 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 | No |
Secondary | Duration of PSA response | 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 | No |
Secondary | Rate and duration of stable disease | 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 | No |
Secondary | Progression-free survival | Will be computed using the Kaplan-Meier method. | From start of treatment to time criteria are met for disease progression, assessed up to 3 years | No |
Secondary | Overall survival | Will be computed using the Kaplan-Meier method. | Up to 3 years | No |
Secondary | Safety and tolerability assessed using National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.0 | Frequency and severity of adverse events will be tabulated using counts and proportions detailing frequently occurring, serious and severe events of interest. | Up to 3 years | Yes |
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