Advanced ChemoHormonal Therapy for Treatment Naïve Metastatic Prostate Cancer: Apalutamide and Abiraterone Acetate With Prednisone and Androgen Deprivation Therapy After Treatment With Docetaxel and Androgen Deprivation Therapy
Overview
- Phase
- Phase 2
- Intervention
- Abiraterone Acetate
- Conditions
- Castration-Sensitive Prostate Carcinoma
- Sponsor
- OHSU Knight Cancer Institute
- Enrollment
- 7
- Locations
- 1
- Primary Endpoint
- Complete prostate specific antigen (PSA) response
- Status
- Active, not recruiting
- Last Updated
- 3 months ago
Overview
Brief Summary
This phase II trial studies how well the combination of apalutamide, abiraterone acetate, and prednisone after chemotherapy work in treating patients that have received no prior treatment (treatment naive) for high risk prostate cancer that is sensitive to androgen deprivation therapy (castration sensitive) and has spread to other parts of the body (metastatic). This study also aims to understand the inheritance of prostate cancer. If a gene or genes that cause prostate cancer can be found, the diagnosis and treatment of prostate cancer may be improved. Testosterone (a male hormone) can cause the growth of prostate cancer cells. Hormone therapy using apalutamide may fight prostate cancer by blocking the use of testosterone by the tumor cells. Antihormone therapy, such as abiraterone acetate, may lessen the amount of testosterone made by the body. Anti-inflammatory drugs such as prednisone lower the body's immune response and are used with other drugs in the treatment of some types of cancer. Apalutamide, abiraterone acetate, and prednisone after chemotherapy may work better in treating patients with castration sensitive prostate cancer.
Detailed Description
PRIMARY OBJECTIVE: I. Efficacy of apalutamide in combination with abiraterone acetate + prednisone following docetaxel with ongoing androgen deprivation therapy in men with high risk metastatic castration sensitive disease. SECONDARY OBJECTIVES: I. Safety and tolerability of apalutamide in combination with abiraterone acetate + prednisone following docetaxel with ongoing androgen deprivation therapy. II. Time to event. III. Depth of prostate specific antigen (PSA) response. EXPLORATORY OBJECTIVES: I. Quality of life. II. Falls. III. Molecular changes from prostate cancer over time. OUTLINE: Patients receive apalutamide orally (PO) once daily (QD), abiraterone acetate PO QD, and prednisone PO QD. Cycles repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. Patients also receive androgen deprivation therapy per standard of care. Patients undergo computed tomography (CT) scan, bone scan and blood sample collection throughout the study. After completion of study treatment, patients are followed up every 6 months for up to 10 years.
Investigators
Julie Graff
Principal Investigator
OHSU Knight Cancer Institute
Eligibility Criteria
Inclusion Criteria
- •Patients must have histologically or cytologically confirmed prostate cancer OR a strong suspicion of prostate cancer as evidenced by metastatic disease in a pattern consistent with prostate cancer (such as blastic lesions on a nuclear medicine bone scan or lymphadenopathy on the computed tomography \[CT\] scan) AND a PSA \> 50 ng/mL
- •Patients must meet either of the definitions for high risk disease as follows:
- •Definition 1: Must have at least 2 of the following 3 at the time diagnosed metastatic:
- •visceral metastatic disease
- •\>=3 bone lesions
- •Gleason 8-10 OR
- •Definition 2: \>=4 bone lesions, including \>=1 outside of the vertebral column or pelvis and/or visceral metastatic disease
- •If a patient has received androgen deprivation therapy (ADT) for neoadjuvant or adjuvant therapy at least 24 months MUST have elapsed since its use to day 1 of restarting ADT for metastatic castration sensitive disease
- •ADT sensitive disease- no evidence of PSA progression or new metastatic deposits since starting ADT; PSA progression is defined as an increase in PSA greater than 25% above nadir, and \>2 ng/ml increase confirmed by a second value obtained at least 2 weeks apart
- •Have completed up to 6 cycles of docetaxel since developing metastatic castration sensitive disease with no more than 16 weeks elapsed since day 21 of the final cycle
Exclusion Criteria
- •Subjects who are unwilling to stop taking saw palmetto, PC-SPECs or other herbal agents known to affect the PSA
- •Patients may not have received any other investigational agents within 30 days prior to day 1 of study
- •Prior exposure to apalutamide, enzalutamide, abiraterone acetate, darolutamide, or any other second-generation antiandrogen therapy
- •Note: prior exposure to bicalutamide, flutamide, nilutamide, or any other first-generation androgen receptor antagonist is permitted. No washout is required. Subjects may be on one of these at the time of consent, but it must be stopped prior to day 1 of study treatment. These drugs are frequently used in the newly diagnosed metastatic setting to blunt the effect of the testosterone spike
- •History of allergic reactions attributed to compounds of similar chemical or biologic composition to apalutamide or other agents used in the study
- •Subject has another active malignancy other than non-melanomatous skin cancer (unless it is metastatic) or superficial bladder cancer
- •Either of the following:
- •Seizure or known condition that may pre-dispose to seizure (e.g. prior stroke within 1 year, brain arteriovenous malformation, Schwannoma, meningioma, or other benign central nervous system \[CNS\] or meningeal disease which may require treatment with surgery or radiation therapy)
- •Severe or unstable angina, myocardial infarction, symptomatic congestive heart failure or left ventricular ejection fraction \< 50%, arterial or venous thromboembolic events (e.g. pulmonary embolism, cerebrovascular accident including transient ischemic attacks), or clinically significant ventricular arrhythmias within 6 months prior to day 1 of study
- •Current evidence of any of the following:
Arms & Interventions
Treatment (apalutamide, abiraterone acetate, prednisone, ADT)
Patients receive apalutamide PO QD, abiraterone acetate PO QD, and prednisone PO QD. Cycles repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. Patients also receive androgen deprivation therapy per standard of care. Patients undergo CT scan, bone scan and blood sample collection throughout the study.
Intervention: Abiraterone Acetate
Treatment (apalutamide, abiraterone acetate, prednisone, ADT)
Patients receive apalutamide PO QD, abiraterone acetate PO QD, and prednisone PO QD. Cycles repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. Patients also receive androgen deprivation therapy per standard of care. Patients undergo CT scan, bone scan and blood sample collection throughout the study.
Intervention: Biospecimen Collection
Treatment (apalutamide, abiraterone acetate, prednisone, ADT)
Patients receive apalutamide PO QD, abiraterone acetate PO QD, and prednisone PO QD. Cycles repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. Patients also receive androgen deprivation therapy per standard of care. Patients undergo CT scan, bone scan and blood sample collection throughout the study.
Intervention: Antiandrogen Therapy
Treatment (apalutamide, abiraterone acetate, prednisone, ADT)
Patients receive apalutamide PO QD, abiraterone acetate PO QD, and prednisone PO QD. Cycles repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. Patients also receive androgen deprivation therapy per standard of care. Patients undergo CT scan, bone scan and blood sample collection throughout the study.
Intervention: Apalutamide
Treatment (apalutamide, abiraterone acetate, prednisone, ADT)
Patients receive apalutamide PO QD, abiraterone acetate PO QD, and prednisone PO QD. Cycles repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. Patients also receive androgen deprivation therapy per standard of care. Patients undergo CT scan, bone scan and blood sample collection throughout the study.
Intervention: Prednisone
Treatment (apalutamide, abiraterone acetate, prednisone, ADT)
Patients receive apalutamide PO QD, abiraterone acetate PO QD, and prednisone PO QD. Cycles repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. Patients also receive androgen deprivation therapy per standard of care. Patients undergo CT scan, bone scan and blood sample collection throughout the study.
Intervention: Computed Tomography
Treatment (apalutamide, abiraterone acetate, prednisone, ADT)
Patients receive apalutamide PO QD, abiraterone acetate PO QD, and prednisone PO QD. Cycles repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. Patients also receive androgen deprivation therapy per standard of care. Patients undergo CT scan, bone scan and blood sample collection throughout the study.
Intervention: Bone Scan
Treatment (apalutamide, abiraterone acetate, prednisone, ADT)
Patients receive apalutamide PO QD, abiraterone acetate PO QD, and prednisone PO QD. Cycles repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. Patients also receive androgen deprivation therapy per standard of care. Patients undergo CT scan, bone scan and blood sample collection throughout the study.
Intervention: Questionnaire Administration
Outcomes
Primary Outcomes
Complete prostate specific antigen (PSA) response
Time Frame: At 12 months from the start of treatment
The complete PSA response is defined as a PSA =\< 0.2 ng/ml, confirmed with a 2nd measurement at least 3 weeks later. The estimated PSA response rate will be computed with 95% exact confidence interval. Binomial exact test will be used to determine whether the complete PSA response rate is significantly greater than 43%.
Secondary Outcomes
- Proportion of patients with PSA response >= 50% decrease(From baseline, assessed up to 12 months)
- Overall survival(From day 1 of treatment, assessed up to 10 years)
- Time to radiographic progression(From start of treatment, assessed up to 10 years)
- Time to next therapy for metastatic castration resistant prostate cancer(From start of treatment, assessed up to 10 years)
- Incidence of adverse events >= grade 2(Up to 10 years)
- Time to biochemical (PSA) progression(From start of treatment, assessed up to 10 years)
- Time to symptomatic progressive disease(From start of treatment, assessed up to 10 years)
- Proportion of patients with PSA response >= 90% decrease(From baseline, assessed up to 12 months)
- Time to treatment failure(From start of treatment, assessed up to 10 years)