Adenocarcinoma of the Prostate Clinical Trial
Official title:
A Phase II Study of AT101, to Abrogate BCL-2 Mediated Resistance to Androgen Ablation Therapy in Patients With Newly Diagnosed Stage D2 Prostate Cancer
This phase II trial is studying how well giving gossypol together with androgen ablation therapy works in treating patients with newly diagnosed metastatic prostate cancer. Gossypol may stop the growth of tumor cells by blocking blood flow to the tumor. Androgens can cause the growth of prostate tumor cells. Luteinizing hormone-releasing hormone agonists and drugs, such as bicalutamide, may lessen the amount of androgens made by the body. Giving gossypol together with androgen ablation therapy may be an effective treatment for prostate cancer
Status | Completed |
Enrollment | 55 |
Est. completion date | June 2012 |
Est. primary completion date | May 2011 |
Accepts healthy volunteers | No |
Gender | Male |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria - Histologically proven adenocarcinoma of the prostate with clinical stage D2 disease defined by soft tissue or bony metastasis. - Patients must have elevated PSA = 5 ng/ml within 12 weeks prior to registration. Androgen ablation therapy, which must include an LHRH agonist, will begin 6 weeks prior to initiation of AT101. - Patients are allowed prior local therapy with radiation or surgery. Patients must not have received more than 12 months of androgen ablation therapy or antiandrogen therapy in the adjuvant/neoadjuvant setting and no prior androgen ablation therapy for metastatic disease, beyond the six week induction period prior to initiation of AT101. Patients with prior adjuvant/neoadjuvant androgen ablation therapy must have completed such therapy at least 12 months prior. - Must be 18 years old or older. - Life expectancy of greater than 6 months. - ECOG performance status = 2. - Patients must have normal organ and marrow function as defined below: - leukocytes = 3,000/mcL - absolute neutrophil count = 1,500/mcL - platelets = 100,000/mcL - 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 m2 for patients with creatinine levels above institutional normal - There must be no plans to receive concomitant chemotherapy or radiation therapy during the study period. Baseline and on study PSA values must be obtained from the same reference laboratory. - The effects of AT101 on the developing human fetus at the recommended therapeutic dose are unknown. For this reason men and/or their partners must agree to use adequate contraception, (including hormonal or barrier method of birth control, abstinence) prior to study entry and for the duration of study participation. Exclusion Criteria - Patients who have had radiotherapy within 4 weeks prior to entering the study or those 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. - Patients with known brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events. - History of allergic reactions attributed to compounds of similar chemical or biologic composition to AT101 or other agents used in the study. - Patients with bilateral orchiectomy are not eligible. - Patients presenting with acute cord compression are not eligible. - History of bowel obstruction or GI dismotility disorder. - 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. - Any condition (e.g., gastrointestinal tract disease resulting in an inability to take oral medication or a requirement for IV alimentation, prior surgical procedures affecting absorption, or active peptic ulcer disease) that impairs their ability to swallow and retain AT-101 tablets. - Requirement for routine use of hematopoietic growth factors (including granulocyte colony stimulating factor, granulocyte macrophage colony stimulating factor, or interleukin-11) or platelet transfusions to maintain absolute neutrophil counts or platelets counts above the required thresholds for study entry. - HIV-positive patients on combination antiretroviral therapy are ineligible because of the potential for pharmacokinetic interactions with AT-101. |
Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | University of Michigan | Ann Arbor | Michigan |
United States | University of Chicago | Chicago | Illinois |
United States | University of Wisconsin Hospital and Clinics | Madison | Wisconsin |
United States | Cancer Institute of New Jersey | New Brunswick | New Jersey |
Lead Sponsor | Collaborator |
---|---|
National Cancer Institute (NCI) |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Percentage of Patients With Undetectable Prostate-specific Antigen (PSA) (< 0.2 ng/mL) at End of 7 Cycles | 3 years | No | |
Secondary | Percentage of Patients With PSA = 0.2 ng/mL But < 4.0 ng/mL | 3 years | No | |
Secondary | Percentage of Patients With Overall PSA < 4.0 ng/mL | 3 years | No |
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