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
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 入组人数
- 108
- 试验地点
- 63
- 主要终点
- Confirmed Biochemical Recurrence (BCR)-Free Rate at Month 24
研究概览
简要总结
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- Male
- 接受健康志愿者
- 否
入选标准
- •A candidate for radical prostatectomy (RP) or status post RP. Eligible to receive study intervention between Day 29 and Day 90 post-RP. Post RP prostate-specific antigen (PSA) of <= 0.2 nanograms per milliliter (ng/mL). Has not received other treatment for prostate cancer
- •Have recovered from RP procedure and have had no worsening in cardiac risk in the peri-operative period per the clinical judgement of the investigator
- •Adequate organ function (hepatic, renal, hematologic and cerebral) determined at the discretion of the treating physician
- •Eastern Cooperative oncology Group (ECOG) Performance Status Score of 0 or 1
- •Histologically confirmed adenocarcinoma of the prostate and categorized as high risk for recurrent prostate cancer. High risk can be defined based on PSA alone or biopsy or RP specimen as follows: PSA greater than or equal to (>=) 20 ng/ml or; Gleason Score >= 9 in any core on biopsy or; Gleason Score >= 8 (4+4 or 5+3) in greater than (>) 80 percentage (%) of 2 cores on biopsy or; Gleason Score = 8 (4+4 or 5+3) in 1 core as long 5 or more other cores with minimum Gleason Score of 4+3 on biopsy. The determination of high risk may be based on pathology report of biopsy or equivalent criteria from radical prostatectomy
排除标准
- •History or presence of soft tissue/bone metastasis or metastasis in distant lymph nodes (pelvic lymph nodes below the iliac bifurcation that are less than (<) 2 centimeter (cm) in diameter [short axis] either radiographically or pathologically are allowed.)
- •History of bilateral orchiectomy
- •Received an investigational intervention <= 4 weeks before the planned first dose of study intervention
- •History of seizure or any condition that in the opinion of the investigator may predispose to seizure or treatment with drugs known to lower the seizure threshold within 4 weeks prior to starting treatment with apalutamide
- •Allergy or hypersensitivity to apalutamide, or excipients, unable or unwilling to take androgen deprivation therapy (ADT)
研究组 & 干预措施
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.
干预措施: ADT (Drug)
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.
干预措施: Apalutamide (Drug)
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.
干预措施: Relugolix (Drug)
结局指标
主要结局
Confirmed Biochemical Recurrence (BCR)-Free Rate at Month 24
时间窗: At Month 24
Confirmed BCR-free rate was estimated from primary efficacy variable, time to confirmed BCR. This was measured as the interval between the date of the first dose of study drug and the date of the first occurrence of confirmed prostate specific antigen (PSA) greater than (\>) 0.2 nanogram per milliliter (ng/mL). Confirmation of the PSA value was conducted within 3 to 4 weeks, regardless of study visit and timing. Participants without confirmed PSA \> 0.2 ng/mL (including those who were lost to follow-up) were censored on their last PSA measurement date during the treatment phase of the study.
Sub-study: Percentage of Participants Who Maintained Testosterone Level Less Than (<) 50 Nanograms Per Deciliter (ng/dL) Through Day 28
时间窗: From Day -14 through Day 28
Percentage of participants maintaining testosterone level \<50 ng/dL through Day 28 were reported.
次要结局
- Confirmed Biochemical Recurrence (BCR)-Free Rate at Month 12(At Month 12)
- Serum Testosterone Recovery (>=150 ng/dL) at Months 18 and 24(At Months 18 and 24)
- Sub-study: Number of Participants With Treatment-emergent Adverse Events(From 1st dose of study intervention (relugolix on Day -14) up to end of sub-study (Day 28))