Apalutamide in Treating Patients With Prostate Cancer Who Are in Active Surveillance

• ClinicalTrials.gov Identifier: NCT02721979
• Recruitment Status: Active, not recruiting
• First Posted: March 29, 2016
• Last Update Posted: May 7, 2020
• Sponsor: University of Washington
• Collaborators: Janssen Scientific Affairs, LLC; National Cancer Institute (NCI)
• Information provided by (Responsible Party): University of Washington

Study Description

Brief Summary:

This phase II trial studies how well apalutamide works in treating patients with prostate cancer who are in active surveillance. Testosterone can cause the growth of prostate cancer cells. Hormone therapy using androgen receptor antagonist apalutamide may fight prostate cancer by blocking the use of testosterone by the tumor cells.

Condition or disease	Intervention/treatment	Phase
Prostate Adenocarcinoma	Drug: Apalutamide; Other: Laboratory Biomarker Analysis; Other: Quality-of-Life Assessment; Other: Questionnaire Administration	Phase 2

Detailed Description:

OUTLINE:

Patients receive apalutamide orally (PO) once daily (QD) for 90 days in the absence of disease progression or unacceptable toxicity.

After completion of the study treatment, patients are followed up at 180, 365, 545, and 730 days; and at years 3, 4 and 5 by medical record review.

Study Design

• Study Type: Interventional (Clinical Trial)
• Actual Enrollment: 23 participants
• Allocation: N/A
• Intervention Model: Single Group Assignment
• Masking: None (Open Label)
• Primary Purpose: Treatment
• Official Title: A Phase 2 Study of Apalutamide in Active Surveillance Patients
• Actual Study Start Date: November 2, 2017
• Actual Primary Completion Date: May 2, 2020
• Estimated Study Completion Date: November 2, 2021

Arms and Interventions

Arm	Intervention/treatment
Experimental: Treatment (apalutamide); Patients receive apalutamide PO QD for 90 days in the absence of disease progression or unacceptable toxicity.	Drug: Apalutamide; Given PO; Other Names: ARN 509; ARN-509; ARN509; JNJ 56021927; JNJ-56021927; Other: Laboratory Biomarker Analysis; Correlative studies; Other: Quality-of-Life Assessment; Ancillary studies; Other Name: Quality of Life Assessment; Other: Questionnaire Administration; Ancillary studies

Outcome Measures

Primary Outcome Measures :

1. Negative (i.e. no residual carcinoma) site directed and systematic prostate biopsy rate [ Time Frame: At 90 days ]
   Negative rate will be presented as the percent of subjects with a negative repeat biopsy, and will be calculated as: (number of patients with a negative biopsy following 90-days of apalutamide) / (total number of patients enrolled on the study) x 100. A 1-sample chi-square test will be used to compare the proportion with a negative repeat biopsy to the null hypothesis value of 20% (above). The 95% confidence interval will be computed.

Secondary Outcome Measures :

1. Percentage of patients exiting active surveillance due to pathologic reclassification [ Time Frame: At 2 years ]
   Will be computed along with its 95% confidence interval.
2. Percentage of patients exiting active surveillance for any reason [ Time Frame: At 2 years ]
   Will be computed along with its 95% confidence interval.
3. Percent of men undergoing of local treatment [ Time Frame: At 2 years ]
   Computed along with its 95% confidence interval.
4. Local treatment free survival [ Time Frame: Up to 730 days ]
   Kaplan-Meier methods and 95% confidence interval will be estimated using Greenwood's formula.
5. Prostate-specific antigen progression rate as defined by the Prostate Cancer Working Group 2 criteria (i.e. confirmed rising prostate-specific antigen >= 2 ng/mL at least one week apart) [ Time Frame: At 2 years ]
   Prostate-specific antigen progression rate will be computed along with 95% confidence interval.
6. Prostate-specific antigen progression free survival as defined by the Prostate Cancer Working Group 2 criteria [ Time Frame: At 2 years ]
   Prostate-specific antigen progression free survival will be estimated using Kaplan-Meier methods and 95% confidence interval will be estimated using Greenwood's formula.
7. Change in radiographic disappearance of magnetic resonance imaging detectable prostate cancer [ Time Frame: Baseline to up to 90 days ]
   Only in patients with a baseline nodule that is Prostate Imaging Reporting and Data System 3 or more and > 5 mm.
8. Incidence of adverse events [ Time Frame: Up to 730 days ]
   As assessed by National Cancer Institute Common Terminology Criteria for Adverse Events, version 4.03.
9. Severity of adverse events [ Time Frame: Up to 730 days ]
   As assessed by National Cancer Institute Common Terminology Criteria for Adverse Events, version 4.03.
10. Change in quality of life [ Time Frame: Baseline to up to 730 days ]
    As assessed using the Functional Assessment of Cancer Therapy-Prostate surveys. Functional Assessment of Cancer Therapy-Prostate is a validated quality of life survey specific for patients with prostate cancer.
11. Change in quality of life [ Time Frame: Baseline to up to 730 days ]
    As assessed using the Short Form-36 survey. Short Form-36 is a validated quality of life survey. This is a generic survey to assess an individual's overall well-being, and is not specific to one disease.
12. Phosphatase and tensin homolog (PTEN) [ Time Frame: Baseline to up to 91 days ]
    Fluorescence in situ hybridization will be conducted to assess for genomic loss of the PTEN gene.
13. PTEN immunohistochemistry [ Time Frame: Baseline to up to 91 days ]
    Immunohistochemistry will be conducted to assess for loss of PTEN protein expression.
14. Alteration in MYC/chromosome 8q24 [ Time Frame: Baseline to up to 91 days ]
    Fluorescence in situ hybridization will be conducted to assess for genomic alterations (loss or amplification) of the MYC gene, which is located on chromosome 8q24.
15. Tumor messenger ribonucleic acid expression profiling/risk classification [ Time Frame: Baseline to up to 91 days ]
    Messenger ribonucleic acid expression profiling will be conducted using the Decipher assay and/or ribonucleic acid-seq.

Eligibility Criteria

• Ages Eligible for Study: 18 Years to 75 Years (Adult, Older Adult)
• Sexes Eligible for Study: Male
• Accepts Healthy Volunteers: No

Criteria

Inclusion Criteria:

• Have signed an informed consent document
• Be willing/able to adhere to the prohibitions and restrictions specified in this protocol
• Written authorization for use and release of health and research study information has been obtained
• Life expectancy >= 10 years (as determined by the treating physician)
• Eastern Cooperative Oncology Group (ECOG) performance status =< 1
• Histologically confirmed adenocarcinoma of the prostate as documented by a minimum 12 core prostate biopsy completed within 1-year of enrollment (note: most recent prostate biopsy must have demonstrated prostatic adenocarcinoma)

• Favorable risk prostate cancer as defined by:

  • Very low-risk:

    • Clinical stage T1c disease
    • PSA density (PSAD) < 0.15 ng/mL
    • Gleason score 6
    • =< 2 core biopsies with =< 50% involvement of any biopsy core with cancer, or unilateral disease =< 2 core biopsies with any percentage involvement OR

  • Low risk:

    • Clinical stage =< T2a
    • PSA < 15 ng/mL
    • Gleason score 6 OR

  • Low-intermediate risk:

    • Clinical stage T1c
    • PSA < 15 ng/ml
    • Gleason 3+4 present in =< 50% of one core/site as detected by systematic biopsy or MRI/transrectal ultrasound (TRUS) fusion guided biopsy
    • Gleason 6 disease in all other cores / sites
• Willing and qualified for active surveillance at Johns Hopkins or the University of Washington
• Serum testosterone >= 150 ng/dL
• Able to swallow the study drugs whole as a tablet
• Hemoglobin >= 9.0 g/dL, (at screening), independent of transfusion and/or growth factors within 3 months prior to registration
• Platelet count >= 100,000 x 10^9/uL (at screening) independent of transfusion and/or growth factors within 3 months prior to registration
• Serum albumin >= 3.0 g/dL (at screening)
• Glomerular filtration rate (GFR) >= 45 mL/min (at screening)
• Serum potassium >= 3.5 mmol/L (at screening)
• Serum total bilirubin =< 1.5 x upper limit of normal (ULN) (at screening) (note: in subjects with Gilbert's syndrome, if total bilirubin is > 1.5 x ULN, measure direct and indirect bilirubin and if direct bilirubin is =< 1.5 x ULN, subject may be eligible)
• Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) < 2.5 × ULN (at screening)
• Medications known to lower the seizure threshold must be discontinued or substituted at least 4 weeks prior to study entry
• Agrees to use a condom (even men with vasectomies) and another effective method of birth control if he is having sex with a woman of childbearing potential or agrees to use a condom if he is having sex with a woman who is pregnant while on study drug and for 3 months following the last dose of study drug; must also agree not to donate sperm during the study and for 3 months after receiving the last dose of study drug

Exclusion Criteria:

• Prior local therapy to treat prostate cancer (e.g. radical prostatectomy, radiation therapy, brachytherapy)
• Prior use of ARN-509 (apalutamide)
• Have known allergies, hypersensitivity, or intolerance to ARN-509 (apalutamide) or its excipients

• Prior or ongoing systemic therapy for prostate cancer including, but not limited to:

  • Hormonal therapy (e.g. leuprolide, goserelin, triptorelin)
  • Cytochrome P450 (CYP)-17 inhibitors (e.g. abiraterone, ketoconazole)
  • Antiandrogens (e.g. bicalutamide, nilutamide)
  • Second generation antiandrogens (e.g. enzalutamide)
  • Immunotherapy (e.g. sipuleucel-T, ipilimumab)
  • Chemotherapy (e.g. docetaxel, cabazitaxel)
• Have any condition that, in the opinion of the investigator, would compromise the well-being of the subject or the study or prevent the subject from meeting or performing study requirements

• History of any of the following:

  • Seizure or known condition that may pre-dispose to seizure (including but not limited to prior stroke, transient ischemic attack, loss of consciousness within 1 year prior to registration, brain arteriovenous malformation; or intracranial masses such as schwannomas and meningiomas that are causing edema or mass effect)
  • Severe or unstable angina, myocardial infarction, symptomatic congestive heart failure, 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 registration
  • Any condition that in the opinion of the investigator, would preclude participation in this study

• Current evidence of any of the following:

  • Uncontrolled hypertension
  • Gastrointestinal disorder affecting absorption
  • Active infection (e.g. human immunodeficiency virus [HIV] or viral hepatitis) or other medical condition that would make prednisone/prednisolone (corticosteroid) use contraindicated
  • Any condition that in the opinion of the investigator, would preclude participation in this study
• The use of drugs known to lower the seizure threshold, including: atypical antipsychotics (e.g. clozapine, olanzapine, risperidone, ziprasidone), bupropion, lithium, meperidine, pethidine, phenothiazine antipsychotics (e.g. chlorpromazine, mesoridazine, thioridazine), and tricyclic antidepressants (e.g. amitriptyline, desipramine, doxepin, imipramine, maprotiline, mirtazapine)

• The use of strong CYP3A4 inhibitors, including: itraconazole, clarithromycin, erythromycin, diltiazem, verapamil, delavirdine, atazanavir, indinavir, nefazodone, nelfinavir, ritonavir, saquinavir, telithromycin, voriconazole, grapefruit juice (or grapefruits)

  • Note: If a patient is on a strong CYP3A4 inhibitor, they can be reconsidered for enrollment if they can safely stop said medication; a two week or 5 half-lives, whichever is longer, washout will be required prior to enrolling on study; subject may not resume medication while receiving apalutamide

• Strong CYP3A4 inducers, including: phenytoin, carbamazepine, rifampin, rifabutin, rifapentine, phenobarbital, efavirenz, tipranavir, St. John's wort

  **Note: If a patient is on a strong CYP3A4 inhibitor, they can be reconsidered for enrollment if they can safely stop said medication; a two week or 5 half-lives, whichever is longer, washout will be required prior to enrolling on study; subject may not resume medication while receiving apalutamide

• Any psychological, familial, sociological, or geographical condition that could potentially interfere with compliance with the study protocol and follow-up schedule

Contacts and Locations

Locations

United States, Washington

Fred Hutch/University of Washington Cancer Consortium

Seattle, Washington, United States, 98109

Sponsors and Collaborators

University of Washington

Janssen Scientific Affairs, LLC

National Cancer Institute (NCI)

Investigators

• Principal Investigator: Michael Schweizer; Fred Hutch/University of Washington Cancer Consortium

More Information

• Responsible Party: University of Washington
• ClinicalTrials.gov Identifier: NCT02721979
• Other Study ID Numbers: 9582; NCI-2016-00221 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) ); 9582 ( Other Identifier: Fred Hutch/University of Washington Cancer Consortium ); P30CA015704 ( U.S. NIH Grant/Contract ); RG1716037 ( Other Identifier: Fred Hutch/University of Washington Cancer Consortium )
• First Posted: March 29, 2016
• Last Update Posted: May 7, 2020
• Last Verified: May 2020

• Studies a U.S. FDA-regulated Drug Product: Yes
• Studies a U.S. FDA-regulated Device Product: No

Additional relevant MeSH terms:

Adenocarcinoma; Carcinoma; Neoplasms, Glandular and Epithelial; Neoplasms by Histologic Type; Neoplasms