Phase Ib/II Platform Study of Multiple Anti-Cancer Agents in Participants With Metastatic Prostate Cancer (PROSPECTOR)
A Phase Ib/II, Open-label, Multi-centre, Platform Study to Assess the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Preliminary Efficacy of Multiple Anti-Cancer Agents in Metastatic Prostate Cancer
研究概览
地位
条件
详细说明
This is a multicentre, open-label and platform study to evaluate multiple anti-cancer agents in participants with metastatic prostate cancer. This platform study will comprise a series of substudies. Each substudy will follow a 2-part structure (unless otherwise stated in the individual substudy):
- Part A: A dose escalation (DE) phase to identify dose limiting toxicities (DLTs), characterise safety, PK, pharmacodynamics, preliminary efficacy, and determine biologically and clinically suitable dose levels to proceed into the dose optimisation/expansion.
- Part B: A dose optimisation/expansion phase to inform recommended Phase 3 dose (RP3D), explore efficacy with Prostate-specific antigen (PSA) decrease ≥ 50% (PSA50) rate as primary endpoints, alongside continued safety monitoring.
Sub-study 1 focuses on a specific combination regimen and it will assess the safety, tolerability, PK, pharmacodynamics, and preliminary anti-tumour activity of AZD2265 (FPI-2265) actinium (225Ac) zadavotide guraxetan [hereafter referred to as AZD2265 (FPI-2265)] in combination with palacaparib (AZD9574) compared with AZD2265 (FPI-2265) monotherapy and with standard-of-care (SoC) docetaxel chemotherapy in participants with metastatic castration resistant prostate cancer (mCRPC).
研究类型
注册 (估计的)
阶段
- 阶段2
- 阶段1
联系人和位置
学习联系方式
- 姓名:AstraZeneca Clinical Study Information Center
- 电话号码:1-877-240-9479
- 邮箱:information.center@astrazeneca.com
学习地点
-
-
-
Essen、德国、45147
- 尚未招聘
- Research Site
-
Jena、德国、07747
- 尚未招聘
- Research Site
-
Rostock、德国、18057
- 尚未招聘
- Research Site
-
Tübingen、德国、72076
- 尚未招聘
- Research Site
-
-
-
-
-
Bergamo、意大利、24127
- 尚未招聘
- Research Site
-
Meldola、意大利、47014
- 尚未招聘
- Research Site
-
Milan、意大利、20141
- 尚未招聘
- Research Site
-
Milan、意大利、20133
- 尚未招聘
- Research Site
-
Roma、意大利、00168
- 尚未招聘
- Research Site
-
-
-
-
-
North Adelaide、澳大利亚、5000
- 尚未招聘
- Research Site
-
-
-
-
California
-
Duarte、California、美国、91010
- 尚未招聘
- Research Site
-
Encino、California、美国、91436
- 尚未招聘
- Research Site
-
South Pasadena、California、美国、91030
- 招聘中
- Research Site
-
-
Florida
-
Miami、Florida、美国、33165
- 招聘中
- Research Site
-
Tampa、Florida、美国、33612
- 尚未招聘
- Research Site
-
-
Louisiana
-
Metairie、Louisiana、美国、70006
- 尚未招聘
- Research Site
-
-
Minnesota
-
Minneapolis、Minnesota、美国、55455
- 尚未招聘
- Research Site
-
-
Nebraska
-
Omaha、Nebraska、美国、68130
- 尚未招聘
- Research Site
-
-
New York
-
New York、New York、美国、10065
- 尚未招聘
- Research Site
-
-
Oregon
-
Portland、Oregon、美国、97239
- 尚未招聘
- Research Site
-
-
Texas
-
Houston、Texas、美国、77030
- 尚未招聘
- Research Site
-
-
-
-
-
Belfast、英国、BT9 7AB
- 尚未招聘
- Research Site
-
Fulham、英国、SW3 6JJ
- 尚未招聘
- Research Site
-
Guildford、英国、CU2 7XX
- 尚未招聘
- Research Site
-
London、英国、WC1E 6DB
- 尚未招聘
- Research Site
-
Newcastle upon Tyne、英国、NE7 7DN
- 尚未招聘
- Research Site
-
Oxford、英国、OX3 7LE
- 尚未招聘
- Research Site
-
-
-
-
-
Barcelona、西班牙、08028
- 尚未招聘
- Research Site
-
L'Hospitalet de Llobregat、西班牙、08908
- 尚未招聘
- Research Site
-
Madrid、西班牙、28041
- 尚未招聘
- Research Site
-
Madrid、西班牙、28031
- 尚未招聘
- Research Site
-
Pamplona、西班牙、31008
- 尚未招聘
- Research Site
-
-
-
-
-
Seoul、韩国、03080
- 尚未招聘
- Research Site
-
Seoul、韩国、03722
- 尚未招聘
- Research Site
-
Seoul、韩国、06591
- 尚未招聘
- Research Site
-
Seoul、韩国、06351
- 尚未招聘
- Research Site
-
Seoul、韩国、5505
- 撤销
- Research Site
-
-
参与标准
资格标准
适合学习的年龄
- 成人
- 年长者
接受健康志愿者
描述
Inclusion Criteria:
- Participants with a diagnosis of histologically confirmed adenocarcinoma of the prostate (no small cell, neuroendocrine, sarcomatoid, spindle or signet cell).
- Minimum life expectancy of 3 months or more.
- Eastern Cooperative Oncology Group (ECOG) performance status of O or 1 at screening, with no deterioration.
- PCWG3 (Prostate Cancer Working Group 3) modified RECIST Version 1.1 evaluable disease.
- Must have received at least one novel androgen receptor pathway inhibitor (ARPI), such as enzalutamide or darolutamide or apalutamide or abiraterone acetate.
- Must have one or more unresectable metastatic lesions.
- Must have had prior orchiectomy and/or ongoing androgen deprivation therapy, and a castrate level of serum testosterone (<50ng/dL or <l.7nmol/L).
- Progressive metastatic castration-resistant prostate cancer (mCRPC) following the most recent treatment at time of study entry.
- Adequate organ and marrow function.
- Non sterilised participants who are sexually active with a partner of childbearing potential must use a condom (plus spermicide, if available), must refrain from fathering a child, freezing or donating sperm, and it is recommended for the partner to also use a highly effective contraceptive method.
Inclusion Criteria for Sub study 1:
- Must have received a single line of ARPI, such as enzalutamide, darolutamide, apalutamide or abiraterone acetate. Participants who were exposed to more than one ARPI due to toxicity or intolerance (not due to disease progression) are eligible.
- PSMA positive mCRPC by computed tomography positron emission tomography, obtained with PSMA ligand defined as at least 1 PSMA positive metastatic lesion with tracer uptake greater than liver, and no PSMA negative lesions. All measurable or intraprostatic lesions must be PSMA positive.
- Capable of self-administering oral formulations.
Exclusion Criteria:
- Any evidence of non adenocarcinomatous forms of prostate cancer (including small cell, spindle cell, signet cell, neuroendocrine, sarcomatous).
- Known, unresolved urinary tract obstruction.
- Participants with a history of central nervous system metastases.
- Symptomatic malignant spinal cord compression or findings indicative of impending cord compression.
- Participants with a history of leptomeningeal carcinomatosis.
- Previous or concurrent cancer distinct from the cancer under investigation in primary site or histology .
- Concurrent serious medical conditions.
- Previous history of interstitial lung disease or non-infectious pneumonitis.
- Participants with a history or clinical/laboratory features suggestive of myelodysplastic syndrome or acute myeloid leukaemia.
- Persistent toxicities caused by previous therapy.
- Participants unable to swallow orally administered medications or with gastrointestinal disorders likely to interfere with absorption.
- Active infection, including tuberculosis, hepatitis C virus, and hepatitis B virus infection.
- Known hypersensitivity to study intervention or any of their excipients.
Exclusion Criteria for Sub study 1:
- History of uncontrolled seizures or requirement for >2 antiepileptic drugs.
- History of severe brain injury or stroke.
- Skeletal metastases demonstrating a superscan appearance on bone scan.
- Participants have received prior therapy with palacaparib (AZD9574) or more than 1 prior line of any other Poly-ADP-ribose polymerase inhibitor (PARPi)-based regimen (either as a treatment or as maintenance).
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:随机化
- 介入模型:顺序分配
- 屏蔽:无(打开标签)
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的:SS1B: AZD2265 (FPI-2265) monotherapy
Participants will receive AZD2265 (FPI-2265) monotherapy Q6W.
|
AZD2265 (FPI-2265) will be administered as an intravenous (IV) injection.
其他名称:
AZD2287 will be administered as an IV injection.
|
|
有源比较器:SS1B: Docetaxel
Participants will receive docetaxel as a standard of care (SoC) once every 3 weeks (Q3W).
|
AZD2287 will be administered as an IV injection.
Docetaxel will be administered as an IV infusion.
|
|
实验性的:Substudy 1 Part A(SS1A): escalating dose levels of palacaparib in combination with AZD2265(FPI-2265)
Participants will receive escalating dose levels of palacaparib (AZD9574) once daily in combination with AZD2265 (FPI-2265) once every 6 weeks (Q6W).
|
AZD2265 (FPI-2265) will be administered as an intravenous (IV) injection.
其他名称:
AZD2287 will be administered as an IV injection.
Palacaparib (AZD9574) will be administered orally.
|
|
实验性的:Sub study 1 Part B(SS1B): selected dose of palacaparib in combination with AZD2265(FPI-2265)
Participants will receive palacaparib (AZD9574) chosen from the DE phase once daily in combination with AZD2265 (FPI-2265) Q6W.
|
AZD2265 (FPI-2265) will be administered as an intravenous (IV) injection.
其他名称:
AZD2287 will be administered as an IV injection.
Palacaparib (AZD9574) will be administered orally.
|
研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Part A: Number of participants with treatment-emergent adverse events (TEAEs)including serious adverse events (SAEs), treatment-related AEs (TRAEs) and adverse events of special interests (AESIs)
大体时间:Up to approximately 1 year after last dose
|
To assess the safety and tolerability of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
Up to approximately 1 year after last dose
|
|
Part A: Number of participants with dose limiting toxicities (DLTs)
大体时间:From date of first dose up to approximately 2 cycles (up to 3 months)
|
To assess the safety and tolerability, and characterise the DLTs of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
From date of first dose up to approximately 2 cycles (up to 3 months)
|
|
Part B: Number of participants with TEAEs
大体时间:Up to approximately 1 year after last dose
|
To further assess the safety and tolerability, and determine the recommended Phase 3 dose (RP3D) of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
Up to approximately 1 year after last dose
|
|
Part B: Prostate Specific Antigen 50 (PSA50) response rate
大体时间:Up to 3 years 4 months
|
PSA50 response rate is defined as proportion of participants achieving a ≥ 50% decrease in PSA from baseline to the lowest post-baseline PSA result, confirmed by a second consecutive PSA assessment at least 3 weeks later, and occurring prior to confirmed PSA progression.
PSA50 will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
Up to 3 years 4 months
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Part A and Part B: Change from baseline in study-specific biomarker XYZ in response to treatment
大体时间:Up to 3 years 4 months
|
To investigate study-specific XYZ expression and relationship to response to the treatment.
|
Up to 3 years 4 months
|
|
Part A and Part B: PSA50 response rate
大体时间:Up to 3 years 4 months
|
PSA50 response rate is defined as proportion of participants achieving a ≥ 50% decrease in PSA from baseline to the lowest post-baseline PSA result, confirmed by a second consecutive PSA assessment at least 3 weeks later, and occurring prior to confirmed PSA progression.
PSA50 will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265) (Part A) and to demonstrate effectiveness of AZD2265 (FPI-2265) + palacaparib (AZD9574) relative to AZD2265 (FPI-2265) alone and relative to docetaxel (Part B).
|
Up to 3 years 4 months
|
|
Part A and Part B: Prostate Specific Antigen 90 (PSA90) response rate
大体时间:Up to 3 years 4 months
|
PSA90 response rate is defined as proportion of participants achieving a ≥ 90% decrease in PSA from baseline to the lowest post-baseline PSA result, confirmed by a second consecutive PSA assessment at least 3 weeks later, and occurring prior to confirmed PSA progression.
PSA90 will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265) (Part A and Part B) and to demonstrate effectiveness of AZD2265 (FPI-2265) + palacaparib (AZD9574) relative to AZD2265 (FPI-2265) alone and relative to docetaxel (Part B only).
|
Up to 3 years 4 months
|
|
Part A and Part B: Time to PSA50 (TTPSA50) response
大体时间:Up to 3 years 4 months
|
TTPSA50 response is defined as the time from date of randomisation/first dose of study intervention until the date of first documented PSA50 response (≥ 50% decrease in PSA from baseline), confirmed by a second consecutive PSA assessment at least 3 weeks later.
TTPSA50 response will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
Up to 3 years 4 months
|
|
Part A and Part B: Time to PSA90 (TTPSA90) response
大体时间:Up to 3 years 4 months
|
TTPSA90 response is defined as the time from date of randomisation/first dose of study intervention until the date of first documented PSA90 response (≥ 90% decrease in PSA from baseline, respectively), confirmed by a second consecutive PSA assessment at least 3 weeks later.
TTPSA90 response will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
Up to 3 years 4 months
|
|
Part A and Part B: Duration of PSA50 (DoPSA50) response
大体时间:Up to 3 years 4 months
|
DoPSA50 response is defined as the time from the date of first documented PSA50 response, that is subsequently confirmed by a second consecutive PSA assessment at least 3 weeks later, until the date of documented PSA progression.
DoPSA50 response will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
Up to 3 years 4 months
|
|
Part A and Part B: Duration of PSA90 (DoPSA90) response
大体时间:Up to 3 years 4 months
|
DoPSA90 response is defined as the time from the date of first documented PSA90 response, that is subsequently confirmed by a second consecutive PSA assessment at least 3 weeks later, until the date of documented PSA progression.
DoPSA90 response will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
Up to 3 years 4 months
|
|
Part A and Part B: Time to PSA progression
大体时间:Up to 3 years 4 months
|
TTPSA progression is defined as time from the date of randomisation/first dose of study intervention until the date of documented PSA progression or the last PSA result in the absence of progression.
PSA progression is defined as an increase in PSA of ≥ 25% from the nadir and an absolute increase of at least 2 ng/mL above nadir beyond 12 weeks.
PSA progression must be confirmed by a second value taken at least 3 weeks later.
TTPSA progression will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
Up to 3 years 4 months
|
|
Part A and Part B: PSA over time
大体时间:Up to 3 years 4 months
|
PSA over time is defined as the longitudinal change in serum PSA from baseline across all on-study timepoints.
PSA over time will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
Up to 3 years 4 months
|
|
Part A and Part B: Radiographic Progression-free survival (rPFS)
大体时间:From Day 1 to 3 years 4 months
|
rPFS is defined as the time from date of randomisation/first dose of study intervention until the date of objective disease progression according to response evaluation criteria in solid tumors (RECIST) 1.1 (for soft tissue disease) and prostate cancer working group 3 (PCWG3) criteria (for bone disease) as assessed by the investigator at the local site, or death (by any cause in the absence of progression), regardless of whether the participant withdraws from therapy or receives another anti-cancer therapy prior to progression.
rPFS will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265) (Part A and Part B) and to demonstrate effectiveness of AZD2265 (FPI-2265) + palacaparib (AZD9574) relative to AZD2265 (FPI-2265) alone and relative to docetaxel (Part B only).
|
From Day 1 to 3 years 4 months
|
|
Part A and Part B: Overall Response Rate (ORR)
大体时间:From Day 1 to 3 years 4 months
|
The ORR is defined as the percentage of participants who have a confirmed complete response (CR) or confirmed partial response (PR), as the time from the date of first documented objective response (which is subsequently confirmed) until the date of radiographic disease progression or censored according to rules for rPFS.
The ORR will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265) (Part A and Part B) and to demonstrate effectiveness of AZD2265 (FPI-2265) + palacaparib (AZD9574) relative to AZD2265 (FPI-2265) alone and relative to docetaxel (Part B only).
|
From Day 1 to 3 years 4 months
|
|
Part A and Part B: Best Overall Response (BOR)
大体时间:From Day 1 to 3 years 4 months
|
The BOR is defined as the best overall visit response the participant achieves as determined by the investigator at the local site.
The BOR will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265) (Part A and Part B) and to demonstrate effectiveness of AZD2265 (FPI-2265) + palacaparib (AZD9574) relative to AZD2265 (FPI-2265) alone and relative to docetaxel (Part B only).
|
From Day 1 to 3 years 4 months
|
|
Part A and Part B: Duration of response (DoR)
大体时间:From Day 1 to 3 years 4 months
|
The DoR is defined based on RECIST 1.1 (for soft tissue disease) and PCWG3 criteria (for bone disease) as the time from the date of first documented objective response (which is subsequently confirmed) until date of radiographic disease progression or censored according to rules for rPFS.
The DoR will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265) (Part A and Part B) and to demonstrate effectiveness of AZD2265 (FPI-2265) + palacaparib (AZD9574) relative to AZD2265 (FPI-2265) alone and relative to docetaxel (Part B only).
|
From Day 1 to 3 years 4 months
|
|
Part A and Part B: Time to Response (TTR)
大体时间:From Day 1 to 3 years 4 months
|
The TTR is defined as the time from the date of randomisation/first dose of study intervention until the date of first documented objective response, which is subsequently confirmed.
The TTR will be assessed to check the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265) (Part A and Part B) and to demonstrate effectiveness of AZD2265 (FPI-2265) + palacaparib (AZD9574) relative to AZD2265 (FPI-2265) alone and relative to docetaxel (Part B only).
|
From Day 1 to 3 years 4 months
|
|
Part A: Disease control rate (DCR)
大体时间:From Day 1 to 3 years 4 months
|
To assess the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265)
|
From Day 1 to 3 years 4 months
|
|
Part A and Part B: Percentage change in tumour size
大体时间:From Day 1 to 3 years 4 months
|
To assess the anti-tumour activity of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
From Day 1 to 3 years 4 months
|
|
Part A and Part B: Plasma concentration of palacaparib (AZD9574)
大体时间:From Cycle 1 Day 1 to Cycle 2 Day 15 (each cycle will be 42 days)
|
To determine the PK of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
From Cycle 1 Day 1 to Cycle 2 Day 15 (each cycle will be 42 days)
|
|
Part A and Part B: Plasma concentration of AZD2265 (FPI-2265)
大体时间:From Cycle 1 Day 1 to Cycle 2 Day 1 (each cycle will be 42 days)
|
To determine the PK of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
From Cycle 1 Day 1 to Cycle 2 Day 1 (each cycle will be 42 days)
|
|
Part A and Part B: Area under the concentration time curve (AUC)
大体时间:From Cycle 1 Day 1 to Cycle 2 Day 15 (each cycle will be 42 days)
|
To determine the PK (AUC) of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
From Cycle 1 Day 1 to Cycle 2 Day 15 (each cycle will be 42 days)
|
|
Part A and Part B: Maximum observed drug concentration (Cmax)
大体时间:From Cycle 1 Day 1 to Cycle 2 Day 15 (each cycle will be 42 days)
|
To determine the PK (Cmax) of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
From Cycle 1 Day 1 to Cycle 2 Day 15 (each cycle will be 42 days)
|
|
Part A and Part B: Time to reach Cmax (tmax)
大体时间:From Cycle 1 Day 1 to Cycle 2 Day 15 (each cycle will be 42 days)
|
To determine the PK (tmax) of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
From Cycle 1 Day 1 to Cycle 2 Day 15 (each cycle will be 42 days)
|
|
Part A and Part B: Terminal elimination half-life (t½λz)
大体时间:From Cycle 1 Day 1 to Cycle 2 Day 15 (each cycle will be 42 days)
|
To determine the PK (t½λz) of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265).
|
From Cycle 1 Day 1 to Cycle 2 Day 15 (each cycle will be 42 days)
|
|
Part A and Part B: Change from baseline in study-specific biomarker ABC in response to treatment
大体时间:Up to 3 years 4 months
|
To investigate pharmacodynamics of palacaparib (AZD9574) in combination with AZD2265 (FPI-2265) (for Part A and Part B) and of AZD2265 (FPI-2265) monotherapy (for Part B only).
|
Up to 3 years 4 months
|
合作者和调查者
赞助
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (估计的)
研究完成 (估计的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
关键字
其他相关的 MeSH 术语
其他研究编号
- D7642C00001
- 2025 (美国 NIH 拨款/合同:Faculty of Social Sciences Scientific Grant at the University of Gdańsk)
- 2025-524920-23 (其他标识符:EU CT number)
计划个人参与者数据 (IPD)
计划共享个人参与者数据 (IPD)?
IPD 计划说明
Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal Vivli.org. All requests will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.
IPD 共享时间框架
IPD 共享访问标准
IPD 共享支持信息类型
- 研究方案
- 树液
药物和器械信息、研究文件
研究美国 FDA 监管的药品
研究美国 FDA 监管的设备产品
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.