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减少剂量放射治疗惰性非霍奇金淋巴瘤

2026年11月6日 更新者:Mayo Clinic

惰性非霍奇金淋巴瘤的减剂量大分割放射治疗(3Gy x 3 次)(POSEIDON):多中心 2 期随机试验

This phase II trial compares the safety, side effects and effectiveness of reduced dose radiation therapy to standard of care dose radiation in treating patients with indolent non-Hodgkin lymphoma. Radiation therapy uses high energy x-rays, particles, or radioactive seeds to kill cancer cells and shrink tumors. Standard of care radiation treatment for indolent non-Hodgkin lymphoma is usually delivered in 12 treatments. Studies have shown indolent lymphoma to be sensitive to radiation treatment, however, larger doses have higher rates of toxicities. A reduced radiation dose may be safe, tolerable and/or effective compared to standard of care radiation dose in treating patients with indolent non-Hodgkin lymphoma.

研究概览

详细说明

PRIMARY OBJECTIVE:

I. To show that the experimental arm [9 gray (Gy) in 3 fractions, 8 Gy in 2 fractions, or 10 Gy in 5 fractions] has significantly reduced acute toxicity (grade ≥ 2 adverse events at least possibly related to radiation treatment within 14 days after the end of radiation treatment [according to Common Terminology Criteria for Adverse Events (CTCAE) version (v)5.0] compared to 24 Gy in 12 fractions.

SECONDARY OBJECTIVES:

I. To evaluate patient reported quality of life. II. To evaluate response rate. III. To evaluate local control rate. IV. To evaluate relapse-free survival.

EXPLORATORY OBJECTIVES:

I. Financial toxicity will be assessed at the end of radiation treatment. II. Financial health care expenditure will be assessed at the end of radiation treatment III. Late toxicity.

CORRELATIVE RESEARCH OBJECTIVES:

I. Biopsies of enrolled patients will be evaluated for pathological assessment of cellular and genetic mutations to correlate them with disease local relapse and radiation resistance.

II. Patients will have their baseline positron emission tomography (PET)/computed tomography (CT) scan undergo auto-segmentation to calculate the functional imaging 18-fluoro-deoxyglucose (FDG) metabolic tumor volume (MTV), total lesions glycolysis (TLG) and maximum standardized uptake volume (SUVmax) of the sites to be treated with involved-site radiation therapy (ISRT) using MIMvista platform to correlate it with disease local relapse and treatment response.

OUTLINE: Patients are randomized to 1 of 2 arms.

ARM I: Patients undergo reduced dose ISRT once daily (QD) over 3, 2, or 5 treatment fractions. Patients also undergo CT or PET/CT throughout the study. Patients may additionally undergo endoscopy during screening and during follow up.

ARM II: Patients undergo standard of care (SOC) radiation therapy QD over 12 treatment fractions. Patients also undergo CT or PET/CT throughout the study. Patients may additionally undergo endoscopy during screening and during follow up.

After completion of study treatment, patients are followed up at days 7 and 14, months 3 and 6, and then every 6 months for up to 2 years post-radiation therapy.

研究类型

介入性

注册 (估计的)

112

阶段

  • 阶段2

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习联系方式

学习地点

    • Arizona
      • Scottsdale、Arizona、美国、85259
        • 招聘中
        • Mayo Clinic in Arizona
        • 接触:
        • 首席研究员:
          • William G. Rule, MD
    • Florida
      • Jacksonville、Florida、美国、32224-9980
        • 招聘中
        • Mayo Clinic in Florida
        • 接触:
        • 首席研究员:
          • Brad S. Hoppe, MD, MPH
    • Minnesota
      • Albert Lea、Minnesota、美国、56007
        • 招聘中
        • Mayo Clinic Health System in Albert Lea
        • 接触:
        • 首席研究员:
          • John Yeakel, MD
      • Mankato、Minnesota、美国、56001
        • 撤销
        • Mayo Clinic Health System - Mankato
      • Rochester、Minnesota、美国、55905
        • 招聘中
        • Mayo Clinic in Rochester
        • 接触:
        • 首席研究员:
          • Scott C. Lester, MD
    • Wisconsin
      • Eau Claire、Wisconsin、美国、54701
        • 招聘中
        • Mayo Clinic Health System-Eau Claire Clinic
        • 接触:
        • 首席研究员:
          • Now Bahar Alam, MD
      • La Crosse、Wisconsin、美国、54601
        • 招聘中
        • Mayo Clinic Health System-Franciscan Healthcare
        • 接触:
        • 首席研究员:
          • Abigail L. Stockham, MD

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 及以上 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Age ≥ 18 years

  • Histological confirmation of indolent B-cell lymphoma that can include any of the following:

    • Follicular lymphoma (grade 1 or 2 or 3A)
    • Marginal zone lymphoma (nodal or extranodal)
    • Follicle center lymphoma
  • Any stage disease

  • Initial, refractory, or relapsed disease. If relapse involves the site to be treated there must be evidence of disease progression

  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) ≤ 3

  • Negative pregnancy test done ≤ 7 days prior to registration, for persons of childbearing potential only

  • Provide written informed consent

  • Ability to complete questionnaire(s) by themselves or with assistance

  • Willing to return to enrolling institution for follow-up visits (during the active monitoring phase of the study). Virtual visits can also be considered as an option for applicable items

  • Confirmation from radiation oncologist of suitability to participate in study

Exclusion Criteria:

  • Any of the following:

    • Pregnant women
    • Nursing women
    • Women of childbearing potential who are unwilling to employ adequate contraception
  • T-cell lymphoma

  • Receiving treatment for small and chronic lymphocytic lymphoma

  • Grade 3B follicular lymphoma

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

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:并行分配
  • 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:ARM 1 (reduced dose ISRT)

Patients undergo reduced dose ISRT once daily (excluding weekends): 9 Gy delivered in 3 treatment fractions or 8 Gy in 2 fractions. At physician discretion, patients may receive 10 Gy in 5 fractions. Patients also undergo CT or PET/CT throughout the study. Patients may additionally undergo endoscopy during screening and during follow up.

Ancillary studies

Undergo CT or PET/CT

其他名称:
  • CT
  • 猫
  • 电脑扫描
  • 计算机轴向断层扫描
  • 计算机断层扫描
  • CT扫描
  • 断层扫描
  • 计算机轴向断层扫描(程序)
  • 计算机断层扫描 (CT) 扫描

Undergo PET/CT

其他名称:
  • 医学成像、正电子发射断层扫描
  • 宠物
  • 宠物扫描
  • 正电子发射断层扫描
  • 质子磁共振波谱成像
  • PT
  • 正电子发射断层扫描(程序)

Undergo endoscopy

其他名称:
  • ES
  • 内窥镜检查

Undergo ISRT in 3 fractions

其他名称:
  • ISRT
有源比较器:ARM 2 (SOC ISRT)

Patients undergo standard of care (SOC) radiation therapy once daily (excluding weekends): 24 Gy in 12 treatment fractions. Patients also undergo CT or PET/CT throughout the study. Patients may additionally undergo endoscopy during screening and during follow up.

Ancillary studies

Undergo CT or PET/CT

其他名称:
  • CT
  • 猫
  • 电脑扫描
  • 计算机轴向断层扫描
  • 计算机断层扫描
  • CT扫描
  • 断层扫描
  • 计算机轴向断层扫描(程序)
  • 计算机断层扫描 (CT) 扫描

Undergo PET/CT

其他名称:
  • 医学成像、正电子发射断层扫描
  • 宠物
  • 宠物扫描
  • 正电子发射断层扫描
  • 质子磁共振波谱成像
  • PT
  • 正电子发射断层扫描(程序)

Undergo endoscopy

其他名称:
  • ES
  • 内窥镜检查

Undergo ISRT in 12 fractions

其他名称:
  • ISRT

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
Incidence of grade 2 or higher acute adverse events (AEs)
大体时间:Up to 14 days after radiation treatment

AEs will be graded using Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. Acute toxicity will be reported as a proportion calculated as the number of patients with acute toxicity divided by the total number of treatment patients. Treatment cycles are 5 days ±2 days (Arm 1) and 16 days ±2 days (Arm 2).

Up to 14 days after radiation treatment

次要结果测量

结果测量
措施说明
大体时间
Response rate
大体时间:Up to 3 months after radiation treatment

Response rate will be defined as the proportion of patients displaying response (complete response or partial response) at 3 months post treatment. Complete response is defined as the disappearance of all signs of cancer in response to treatment. Partial response is defined decrease in the size of target lesions by ≥ 50%, with no increase in the size of any lesion and no appearance of new lesions. Treated patients who do not have a 3-month evaluation will be classified as a non-response. Treatment cycles are 5 days ±2 days (Arm 1) and 16 days ±2 days (Arm 2).

Up to 3 months after radiation treatment
Time to progression rate
大体时间:Up to 24 months after radiation treatment

Local control will be defined as the number of days from end of radiation treatment until first local recurrence within 24 months post radiation treatment. Treatment cycles are 5 days ±2 days (Arm 1) and 16 days ±2 days (Arm 2).

Up to 24 months after radiation treatment
Patient reported quality of life
大体时间:Up to 3 months after radiation treatment

Patient reported quality of life will be measured using Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) scale, a 13-item questionnaire answered on a scale of 1-5 where 1=Not at all and 5=Very much. Treatment cycles are 5 days ±2 days (Arm 1) and 16 days ±2 days (Arm 2).

Up to 3 months after radiation treatment

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

调查人员

  • 首席研究员:Brad S. Hoppe, MD, MPH、Mayo Clinic

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2024年5月15日

初级完成 (估计的)

2029年5月30日

研究完成 (估计的)

2031年5月30日

研究注册日期

首次提交

2024年4月23日

首先提交符合 QC 标准的

2024年4月23日

首次发布 (实际的)

2024年4月26日

研究记录更新

最后更新发布 (实际的)

2026年11月10日

上次提交的符合 QC 标准的更新

2026年11月6日

最后验证

2026年11月1日

更多信息

与本研究相关的术语

其他研究编号

  • MC230808
  • 23-010273 (其他标识符:Mayo Clinic Institutional Review Board)

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

在美国制造并从美国出口的产品

不

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.

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