Randomized Double-Blind Controlled Phase III Trial of Hyperbaric Oxygen Therapy in Patients Suffering Long-Term Adverse Effects of Radiotherapy for Pelvic Cancer (HOT II)
试验速览
- 阶段
- 3 期
- 入组人数
- 75
- 试验地点
- 2
- 主要终点
- Gastrointestinal symptoms score using the IBDQ quality-of-life questionnaire
研究概览
简要总结
RATIONALE: Radiation therapy can cause long-term adverse effects. Hyperbaric oxygen therapy may be effective in lessening gastrointestinal symptoms caused by radiation therapy given for pelvic cancer. It is not yet known whether high-pressure oxygen is effective in treating adverse effects caused by radiation therapy.
PURPOSE: This randomized phase III trial is studying hyperbaric oxygen therapy to see how well it works in treating long-term gastrointestinal adverse effects caused by radiation therapy in patients with pelvic cancer.
详细描述
OBJECTIVES:
- To determine the clinical benefits of hyperbaric oxygen therapy in reducing dysfunction in patients with pelvic cancer developing iatrogenic gastrointestinal symptoms as a result of previous radical pelvic radiotherapy completed at least one year ago.
OUTLINE: This is a multicenter study. Patients are stratified according to center and severity of symptoms (low vs high). Patients are randomized to 1 of 2 treatment arms.
- Arm I (treatment group): Patients undergo hyperbaric oxygen therapy over 90 minutes, 5 days a week, for 8 weeks for a total of 40 treatments. Oxygen at 100% is breathed for 30 minutes, followed by a 5-minute "air break" and a further 30 minutes of breathing oxygen. A further 5-minute "air break" is followed by a further 30 minutes of breathing oxygen. During the final 10 minutes of oxygen breathing, the chamber is depressurized to ambient atmospheric pressure at a linear rate (14.2 kPa/min).
- Arm II (control group): Patients undergo hyperbaric oxygen therapy over 90 minutes, 5 days a week, for 8 weeks for a total of 40 treatments. Oxygen at 21% is breathed for 30 minutes, followed by a 5-minute "air break" and a further 30 minutes of breathing oxygen. A further 5-minute "air break" is followed by a further 30 minutes of breathing oxygen. During the final 10 minutes of oxygen breathing, the chamber is depressurized to ambient atmospheric pressure at a linear rate (3 kPa/min).
Tissue samples from rectal biopsies may be collected and analyzed.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 主要目的
- Supportive Care
- 盲法
- Double
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
Gastrointestinal symptoms score using the IBDQ quality-of-life questionnaire
次要结局
- Physician assessment of adverse effects using LENT SOMA scales of radiation injury
- Patient self-assessments using EORTC QLQ-C30 and Defecation Problem Subscale of QLQ-CR38
- Photographic images of rectal mucosa
- Physician assessment of rectal dysfunction based on the modified CTCAE grading system
- Health economics data