Skip to content

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

A Phase 2 Study of Apalutamide in Active Surveillance Patients

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02721979
Enrollment
24
Registered
2016-03-29
Start date
2017-11-02
Completion date
2021-11-30
Last updated
2023-02-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prostate Adenocarcinoma

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.

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.

Interventions

DRUGApalutamide

Given PO

OTHERLaboratory Biomarker Analysis

Correlative studies

OTHERQuality-of-Life Assessment

Ancillary studies

OTHERQuestionnaire Administration

Ancillary studies

Sponsors

Janssen Scientific Affairs, LLC
CollaboratorINDUSTRY
National Cancer Institute (NCI)
CollaboratorNIH
University of Washington
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to 75 Years
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Negative (i.e. no Residual Carcinoma) Site Directed and Systematic Prostate Biopsy RateAt 90 daysNegative 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

MeasureTime frameDescription
Percentage of Patients Exiting Active Surveillance for Any ReasonAt 2 yearsPercentage of patients exiting active surveillance for any reason will be computed along with its 95% confidence interval.
Percent of Men Undergoing Local TreatmentAt 2 yearsComputed along with its 95% confidence interval.
Local Treatment Free SurvivalUp to 730 daysMedian treatment free survival will be estimated using Kaplan-Meier methods and 95% confidence interval will be calculated
Change in Quality of Life: SF-36 Energy/FatigueBaseline compared to 730 daysAs assessed using the Short Form-36 (SF-36) survey energy/fatigue subscale. 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. The SF-36 energy/fatigue subscale score ranges from 0 to 100, with higher scores indicating better quality of life. The change in SF-36 energy/fatigue subscale score between baseline and day 730 is reported.
Prostate-specific Antigen Progression RateAt 2 yearsProstate-specific antigen progression rate is the proportion of patients that had PSA progression following treatment. PSA progression is as a confirmed rising prostate-specific antigen \>= 2 ng/mL, with subsequent PSA values obtained at least one week apart.
Percentage of Patients Exiting Active Surveillance Due to Pathologic ReclassificationAt 2 yearsThe percentage of patients who exited active surveillance due to pathologic reclassification (e.g. increasing tumor volume or gleason score) will be computed along with its 95% confidence interval.
Change in Radiographic Disappearance of Magnetic Resonance Imaging Detectable Prostate CancerBaseline to up to 90 daysThis calculates the percentage of participants with radiographic disappearance of magnetic resonance imaging detectable prostate cancer. This is only in patients with a baseline nodule that is Prostate Imaging Reporting and Data System 3 or more and \> 5 mm.
Change in Quality of Life: FACT-P AssessmentBaseline compared to 730 daysAs assessed using the Functional Assessment of Cancer Therapy-Prostate (FACT-P) surveys. Functional Assessment of Cancer Therapy-Prostate is a validated quality of life survey specific for patients with prostate cancer. The total FACT-P score ranges from 0 to 156, with higher scores indicating better quality of life. The change in FACT-P score between baseline and day 730 is reported.
Change in Quality of Life: SF-36 Physical FunctioningBaseline compared to 730 daysAs assessed using the Short Form-36 (SF-36) survey physical functioning subscale. 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. The SF-36 physical functioning subscale score ranges from 0 to 100, with higher scores indicating better quality of life. The change in SF-36 energy/fatigue subscale score between baseline and day 730 is reported.
Change in Quality of Life: SF-36 Emotional Well BeingBaseline compared to 730 daysAs assessed using the Short Form-36 (SF-36) survey emotional well being subscale. 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. The SF-36 emotional well being subscale score ranges from 0 to 100, with higher scores indicating better quality of life. The change in SF-36 emotional well being subscale score between baseline and day 730 is reported.
Prostate-specific Antigen Progression Free Survival as Defined by the Prostate Cancer Working Group 2 CriteriaAt 2 yearsProstate-specific antigen progression free survival will be estimated using Kaplan-Meier methods and 95% confidence interval will be estimated using Greenwood's formula.

Countries

United States

Participant flow

Recruitment details

The screening study procedures are conducted within 30 days prior to enrollment. The only exception to this would be the surveillance prostate biopsy.

Pre-assignment details

24 subjects signed consent for this study, but only 23 were eligible to enter into the treatment phase.

Participants by arm

ArmCount
Treatment (Apalutamide)
Patients receive apalutamide PO QD for 90 days in the absence of disease progression or unacceptable toxicity. Apalutamide: Given PO Laboratory Biomarker Analysis: Correlative studies Quality-of-Life Assessment: Ancillary studies Questionnaire Administration: Ancillary studies
24
Total24

Baseline characteristics

CharacteristicTreatment (Apalutamide)
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
14 Participants
Age, Categorical
Between 18 and 65 years
10 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
24 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Patients with very low risk disease at baseline9 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
23 Participants
Region of Enrollment
United States
24 Participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
24 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 23
other
Total, other adverse events
23 / 23
serious
Total, serious adverse events
0 / 23

Outcome results

Primary

Negative (i.e. no Residual Carcinoma) Site Directed and Systematic Prostate Biopsy Rate

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.

Time frame: At 90 days

Population: These are patients that had 90 days of treatment and had post-treatment biopsies.

ArmMeasureValue (NUMBER)
ApalutamideNegative (i.e. no Residual Carcinoma) Site Directed and Systematic Prostate Biopsy Rate59 percentage of subjects
Secondary

Change in Quality of Life: FACT-P Assessment

As assessed using the Functional Assessment of Cancer Therapy-Prostate (FACT-P) surveys. Functional Assessment of Cancer Therapy-Prostate is a validated quality of life survey specific for patients with prostate cancer. The total FACT-P score ranges from 0 to 156, with higher scores indicating better quality of life. The change in FACT-P score between baseline and day 730 is reported.

Time frame: Baseline compared to 730 days

Population: Only 14 subjects completed Day 730 survey.

ArmMeasureValue (MEDIAN)
ApalutamideChange in Quality of Life: FACT-P Assessment3.17 Change in median FACT-P score
Secondary

Change in Quality of Life: SF-36 Emotional Well Being

As assessed using the Short Form-36 (SF-36) survey emotional well being subscale. 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. The SF-36 emotional well being subscale score ranges from 0 to 100, with higher scores indicating better quality of life. The change in SF-36 emotional well being subscale score between baseline and day 730 is reported.

Time frame: Baseline compared to 730 days

Population: Only 14 subjects completed Day 730 survey.

ArmMeasureValue (MEDIAN)
ApalutamideChange in Quality of Life: SF-36 Emotional Well Being6 Change in median SF-36 subscale score
Secondary

Change in Quality of Life: SF-36 Energy/Fatigue

As assessed using the Short Form-36 (SF-36) survey energy/fatigue subscale. 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. The SF-36 energy/fatigue subscale score ranges from 0 to 100, with higher scores indicating better quality of life. The change in SF-36 energy/fatigue subscale score between baseline and day 730 is reported.

Time frame: Baseline compared to 730 days

Population: Only 14 subjects completed Day 730 survey.

ArmMeasureValue (MEDIAN)
ApalutamideChange in Quality of Life: SF-36 Energy/Fatigue12.5 Change in median SF-36 subscale score
Secondary

Change in Quality of Life: SF-36 Physical Functioning

As assessed using the Short Form-36 (SF-36) survey physical functioning subscale. 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. The SF-36 physical functioning subscale score ranges from 0 to 100, with higher scores indicating better quality of life. The change in SF-36 energy/fatigue subscale score between baseline and day 730 is reported.

Time frame: Baseline compared to 730 days

Population: Only 14 subjects completed Day 730 survey.

ArmMeasureValue (MEDIAN)
ApalutamideChange in Quality of Life: SF-36 Physical Functioning-17.65 Change in median SF-36 subscale score
Secondary

Change in Radiographic Disappearance of Magnetic Resonance Imaging Detectable Prostate Cancer

This calculates the percentage of participants with radiographic disappearance of magnetic resonance imaging detectable prostate cancer. This is only in patients with a baseline nodule that is Prostate Imaging Reporting and Data System 3 or more and \> 5 mm.

Time frame: Baseline to up to 90 days

Population: Only 1 patient had paired MRI at baseline and again at post-treatment.

ArmMeasureValue (NUMBER)
ApalutamideChange in Radiographic Disappearance of Magnetic Resonance Imaging Detectable Prostate Cancer0 percentage of participants
Secondary

Local Treatment Free Survival

Median treatment free survival will be estimated using Kaplan-Meier methods and 95% confidence interval will be calculated

Time frame: Up to 730 days

ArmMeasureValue (MEDIAN)
ApalutamideLocal Treatment Free Survival874 days
Secondary

Percentage of Patients Exiting Active Surveillance Due to Pathologic Reclassification

The percentage of patients who exited active surveillance due to pathologic reclassification (e.g. increasing tumor volume or gleason score) will be computed along with its 95% confidence interval.

Time frame: At 2 years

ArmMeasureValue (NUMBER)
ApalutamidePercentage of Patients Exiting Active Surveillance Due to Pathologic Reclassification18.2 Percentage of participants
Secondary

Percentage of Patients Exiting Active Surveillance for Any Reason

Percentage of patients exiting active surveillance for any reason will be computed along with its 95% confidence interval.

Time frame: At 2 years

ArmMeasureValue (NUMBER)
ApalutamidePercentage of Patients Exiting Active Surveillance for Any Reason22.7 Percentage of participants
Secondary

Percent of Men Undergoing Local Treatment

Computed along with its 95% confidence interval.

Time frame: At 2 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ApalutamidePercent of Men Undergoing Local Treatment5 Participants
Secondary

Prostate-specific Antigen Progression Free Survival as Defined by the Prostate Cancer Working Group 2 Criteria

Prostate-specific antigen progression free survival will be estimated using Kaplan-Meier methods and 95% confidence interval will be estimated using Greenwood's formula.

Time frame: At 2 years

ArmMeasureValue (MEDIAN)
ApalutamideProstate-specific Antigen Progression Free Survival as Defined by the Prostate Cancer Working Group 2 Criteria365 days
Secondary

Prostate-specific Antigen Progression Rate

Prostate-specific antigen progression rate is the proportion of patients that had PSA progression following treatment. PSA progression is as a confirmed rising prostate-specific antigen \>= 2 ng/mL, with subsequent PSA values obtained at least one week apart.

Time frame: At 2 years

ArmMeasureValue (NUMBER)
ApalutamideProstate-specific Antigen Progression Rate100 Percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 13, 2026