A Study of Apalutamide (Adjuvant Treatment) and Androgen Deprivation Therapy (ADT) in Participants Who Have Undergone Radical Prostatectomy (RP) for Non-metastatic Prostate Cancer and Who Are at High Risk for Metastases
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|ClinicalTrials.gov Identifier: NCT04523207|
Recruitment Status : Active, not recruiting
First Posted : August 21, 2020
Last Update Posted : January 18, 2023
Main Study: The purpose of main study is to assess if the combination of apalutamide and androgen deprivation therapy (ADT) in participants with high-risk localized prostate cancer improves the biochemical recurrence (BCR) free rate.
Sub-study: The purpose of the sub-study is to assess if the co administration of apalutamide and relugolix is able to maintain castrate levels of testosterone.
|Condition or disease||Intervention/treatment||Phase|
|Prostatic Neoplasms||Drug: Apalutamide Drug: ADT Drug: Relugolix||Phase 2|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||108 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||A Multi-center, Open-label, Single-arm Phase 2 Study of the Adjuvant Treatment of Apalutamide and Androgen Deprivation Therapy (ADT) in Treatment-naïve Participants Who Have Undergone Radical Prostatectomy (RP) for Non-metastatic Prostate Cancer and Who Are at High Risk for Metastases|
|Actual Study Start Date :||August 19, 2020|
|Estimated Primary Completion Date :||April 2, 2024|
|Estimated Study Completion Date :||May 20, 2024|
Experimental: Apalutamide + Androgen Deprivation Therapy (ADT)
In the main study, participants will receive apalutamide 240 milligram (mg) once daily orally along with ADT for 12 cycles (Each cycle is of 28 days). Participants who enrolled in the sub-study will receive apalutamide 240 mg once daily along with relugolix (a type of ADT) 120 mg once daily following a loading dose of 360 mg relugolix orally. Sub-study participants will be receiving relugolix up to Day 28 after which they will be transitioned into the main study from Cycle 2 Day 1 and will continue to receive conventional or oral ADT.
Participants will receive apalutamide 240 mg (4 tablets of 60 mg each) oral tablets during the main study and sub-study.
Other Name: JNJ-56021927
Participants will receive ADT intramuscular or subcutaneously during the main study.
Participants will receive 120 mg of relugolix following a loading dose of 360 mg of (3 tablets of 120 mg each) relugolix during the sub-study.
- Main Study: Time to Biochemical Recurrence (BCR) [ Time Frame: Month 24 ]BCR is defined as a confirmed prostate specific antigen (PSA) greater than (>) 0.2 nanogram per milliliter (ng/ml) and time to BCR will be analyzed using Kaplan-Meier method.
- Sub-study: Percentage of Participants Maintaining Testosterone Level Less Than (<) 50 Nanograms per Deciliter (ng/dL) Through Day 28 [ Time Frame: Up to Day 28 ]Percentage of participants maintaining testosterone level <50 ng/dL through Day 28 will be reported.
- Main Study: Time to BCR [ Time Frame: Month 12 ]BCR is defined as a confirmed PSA > 0.2 ng/ml and time to BCR will be analyzed using Kaplan-Meier method.
- Main Study: Time to Serum Testosterone Recovery [ Time Frame: Months 18 and 24 ]The testosterone recovery, defined as a serum testosterone greater than or equal to (>=)150 nanograms per deciliter (ng/dL) which will be analyzed using Kaplan-Meier method.
- Sub-study: Number of Participants with Adverse Events (AEs) as a Measure of Safety and Tolerability [ Time Frame: Up to Day 28 ]An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04523207
|Study Director:||Janssen Research & Development, LLC Clinical Trial||Janssen Research & Development, LLC|