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临床试验/NCT05249127
NCT05249127已完成1 期

64Cu-SAR-bisPSMA Positron Emission Tomography: A Phase 1/2 Study of Participants With Biochemical Recurrence of Prostate Cancer

Clarity Pharmaceuticals Ltd5 个研究点 分布在 1 个国家目标入组 52 人开始时间: 2022年4月11日最近更新:
适应症
干预措施
相关药物

试验速览

阶段
1 期
状态
已完成
入组人数
52
试验地点
5
主要终点
Safety and Tolerability

研究概览

简要总结

The aim of this study is to determine the safety and efficacy of 64Cu-SAR-bisPSMA and determine the ability of 64Cu-SAR-bisPSMA Positron emission tomography (PET)/computed tomography (CT) to correctly detect the recurrence of prostate cancer in participants with biochemical recurrence of prostate cancer following definitive therapy.

详细描述

Participants with biochemical evidence of recurrence of PC were evaluated with 64CU-SAR-bisPSMA PET/CT (Day 0 and Day 1) and by conventional methodologies up to 180 days later, eg. Histopathology/biopsy, conventional imaging, PSA reduction post focal salvage therapy or radiotherapy with no concomitant androgen deprivation therapy. Three independent central readers blinded to the participant number, the time of the PET/CT scan and the results of the conventional methodologies assessed the 64Cu-SAR-bisPSMA PET/CT. Three separate independent readers assessed the results of the conventional methodologies.

研究设计

研究类型
Interventional
分配方式
Na
干预模型
Single Group
主要目的
Diagnostic
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

入选标准

  • At least 18 years of age.
  • Signed informed consent.
  • Life expectancy ≥ 12 weeks as determined by the Investigator.
  • Histologically confirmed adenocarcinoma of prostate per original diagnosis and completed subsequent definitive therapy.
  • Suspected recurrence of prostate cancer (PC) based on rising Prostate-specific antigen (PSA) after definitive therapy on the basis of:
  • Post-radical prostatectomy: Detectable or rising PSA that is ≥ 0.2 ng/mL with a confirmatory PSA ≥ 0.2 ng/mL (per American Urological Association recommendation) or
  • Post-radiation therapy, cryotherapy, or brachytherapy: Increase in PSA level that is elevated by ≥ 2 ng/mL above the nadir (per American Society for Therapeutic Radiology and Oncology-Phoenix consensus definition).
  • Negative or equivocal findings for PC on conventional imaging performed as part of standard of care workup within 60 days prior to Day
  • The Eastern Cooperative Oncology performance status 0-
  • Adequate recovery from acute toxic effects of any prior therapy.
  • Estimated Glomerular Filtration Rate of 30 mL/min or higher.
  • Adequate liver function.
  • For participants who have partners of childbearing potential: Partner and/or participant must use a method of birth control with adequate barrier protection.

排除标准

  • Participants who received other investigational agents within 28 days prior to Day
  • Participants administered any high energy (>300 kiloelectronvolts (keV)) gamma-emitting radioisotope within 5 physical half-lives prior to Day
  • Ongoing treatment or treatment within 90 days of Day 0 with any systemic therapy (e.g. androgen-deprivation therapy, antiandrogen, gonadotropin-releasing hormone, luteinizing hormone-releasing hormone agonist or antagonist) for PC.
  • Known or expected hypersensitivity to 64Cu-SAR-bisPSMA or any of its components.
  • Any serious medical condition or extenuating circumstance which the investigator feels may interfere with the procedures or evaluations of the study.

研究组 & 干预措施

64Cu-SAR-bisPSMA

Experimental

Patients will receive a single administration of 200 megabecquerels (MBq) of 64Cu-SAR-bisPSMA.

干预措施: 64Cu-SAR-bisPSMA (Drug)

结局指标

主要结局

Safety and Tolerability

时间窗: up to 7 days post injection

Incidence and severity of Treatment-Emergent Adverse Events (TEAE) and Serious Adverse Events. Adverse Events were assessed by CTCAE version 5.0

Participant-level Correct Detection Rate (CDR)- Day 0

时间窗: Day 0 (1- 4 hours) post injection

The percentage of TP participants on the Day 0 scan out of all participants with a Day 0 scan.

Participant-level CDR- Day 1

时间窗: Day 1 (24+/-6 Hours) post injection

The percentage of TP participants on the Day 1 scan out of all participants with a Day 1 scan.

Region-level Positive Predictive Value (PPV)- Day 0

时间窗: Day 0 (1- 4 hours)

The percentage of TP regions on the Day 0 scan out of all positive regions on the Day 0 scan.

Region-level PPV- Day 1

时间窗: Day 1 (24 +/- 6 hours)

The percentage of TP regions on the Day 1 scan out of all positive regions on the Day 1 scan.

次要结局

  • Biodistribution of 64Cu-SAR-bisPSMA- SUVmax(Day 0 (1-4 hours) and Day 1 (24 +/- 6 hours))
  • Biodistribution of 64Cu-SAR-bisPSMA- SUVmean(Day 0 (1 -4 hours) and Day 1 (24 +/- 6 hours) post injection)
  • Biodistribution of 64Cu-SAR-bisPSMA- SUVr(Day 0 (1-4 hours) and Day 1 (24 +/- 6 hours))
  • Participant-level PPV(Day 0 (1-4 hours) and Day 1 (24 +/- 6 hours))
  • Participant-level Detection Rate (DR)(Day 0 (1-4 hours) and Day 1 (24 +/- 6 hours))
  • Participant-level False Positive Rate (FPR)(Day 0 (1-4 hours) and Day 1 (24 +/- 6 hours))
  • Region-level FPR(Day 0 (1-4 hours) and Day 1 (24 +/-6 hours))
  • Participant-level Discrepant PET Negativity Rate(Day 0 (1-4 hours) and Day 1 (24 +/-6 hours))
  • Participant-level True Negative Rate (TNR)(Day 0 (1-4 hours) and Day 1 (24 +/-6 hours))
  • Region-level TNR(Day 0 (1-4 hours) and Day 1 (24 +/- 6 hours))

研究者

申办方类型
Industry
责任方
Sponsor

研究点 (5)

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相关资讯

Clarity Pharmaceuticals' 64Cu-SAR-bisPSMA and 67Cu-SAR-bisPSMA Gain FDA Fast Track Designations for Prostate Cancer- The FDA granted Fast Track Designation (FTD) to 64Cu-SAR-bisPSMA for PET imaging of prostate cancer lesions in patients with biochemical recurrence after definitive therapy. - 67Cu-SAR-bisPSMA also received FTD for treating PSMA-positive metastatic castration-resistant prostate cancer (mCRPC) after androgen receptor pathway inhibition. - These designations expedite Clarity Pharmaceuticals' development programs, offering faster review and increased communication with the FDA for both diagnostics and therapeutics.last yearFDA Grants Fast Track Designation to 64Cu-SAR-bisPSMA for PSMA+ Prostate Cancer Imaging- The FDA granted Fast Track designation to 64Cu-SAR-bisPSMA, a novel PET imaging agent, for detecting prostate-specific membrane antigen (PSMA)-positive prostate cancer lesions with suspected metastases. - Phase 1 PROPELLER trial data showed a 100% primary prostate cancer detection rate by one reader and 85.7% by another, with greater uptake compared to the standard of care 68Ga-PSMA-11. - Phase 1/2 COBRA trial results indicated detection rates ranging from 44% to 80% on days 0 and 1, respectively, in patients with biochemical recurrence of prostate cancer. - 64Cu-SAR-bisPSMA's dual targeting structure and longer half-life enable next-day imaging, potentially detecting smaller lesions with higher tumor uptake and retention.last yearClarity Pharmaceuticals Launches COBRA Trial Testing Novel Cu-64 SAR-bisPSMA Imaging Agent for Biochemically Recurrent Prostate Cancer- Clarity Pharmaceuticals has opened enrollment for the phase 1/2 COBRA trial evaluating 64Cu SAR-bisPSMA in 50 patients with biochemically recurrent prostate cancer following definitive therapy. - The novel PSMA-PET imaging agent aims to improve detection of prostate cancer recurrence, particularly low-volume disease, with enhanced accessibility through central manufacturing and on-demand delivery. - Multiple ongoing trials are exploring 64Cu SAR-bisPSMA applications, including the X-Calibur trial recruiting 150 patients and the SECURE trial combining imaging with targeted therapy in metastatic disease. - Preliminary data from Clarity's earlier trials indicate high uptake of the copper-64 agent, suggesting potential for improved diagnostic accuracy in biochemical recurrence patients.4 years ago