Can Fecal Microbiota Transplantation of Cachectic Patients with Pancreas Cancer Impair Body Weight Gain in Germ-free Mice? the EXTRA Study
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 24
- 试验地点
- 1
- 主要终点
- Body weight changes in mice after fecal material transplantation.
研究概览
简要总结
This monocentric study aims at evaluating the effects of fecal microbiota transplantation from newly diagnosed cachectic and non-cachectic pancreatic cancer patients, and healthy volunteers on several cachexia-related parameters of germ-free mice.
详细描述
Aim: Evaluating the effects of fecal microbiota transplantation (FMT) from 6 newly diagnosed cachectic and 6 non-cachectic pancreatic cancer patients, and 12 healthy age-and sex-matched volunteers on several cachexia-related parameters of 96 germ-free mice (4 per donor) over a 30-day period. The fecal material of all 12 pancreatic cancer patients will be collected at diagnosis before any cancer treatment onset.
Hypothesis
FMT of cachectic patients with pancreas cancer, naïve of any anti-cancer treatment and artificial nutrition, into germ-free mice impairs weight gain, in contrast to FMT of non-cachectic patients and healthy controls.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Patients with pancreatic cancer (n=12)
- •≥18 years and
- •Newly diagnosed of pancreatic adenocarcinoma (local or metastatic) and
- •Tube feeding or parenteral nutrition ≤ 14 days
- •Cachectic pancreatic cancer patients (n=6)
- •Cachexia according to the Fearon criteria 1: involuntary weight loss >5% over the last 6 months, or any level of weight loss >2% and a BMI <20 kg/m2 or sarcopenia. Sarcopenia will be diagnosed by BIA (fat-free mass index is <17 kg/m2 in men and <15 kg/m2 in women) 81, and not by CT, as it is faster and can be performed at the bedside of the patient. Non-cachectic pancreatic cancer patients (n=6)
- •Normal nutritional state: weight stability (± 2% of habitual weight) over the last 6 months, no anorexia before the diagnosis (appetite rating on a visual analogue scale of 100mm), no known impaired glucose tolerance.
- •Healthy matched subjects (n=12)
- •≥18 years and
- •BMI between 18.5 and 30 kg/m2 and
- •Absence of chronic or acute disease and
- •Matching for gender and age (± 5 years) with an included pancreatic cancer patient
排除标准
- •< 18 years or
- •Inability to give consent or
- •Insufficient knowledge of project language (French, German) or
- •Pancreatic adenocarcinoma already treated by chemo- or radiotherapy, or major surgery as duodenopancreatectomy or biliary diversion
- •Known rheumatologic or immunologic diseases
- •Therapeutic antibiotics or immunosuppressive drugs (for instance glucocorticoids, cytostatics, antibodies) in the 30 days preceding the inclusion
结局指标
主要结局
Body weight changes in mice after fecal material transplantation.
时间窗: Between days 0 and 30
Body weight (g)
次要结局
- Muscle mass(at diagnosis)
- Nutritional intake(at diagnosis)
- Homeostatic model assessment (HOMA)-score(at diagnosis)
- Differences in fecal microbiota(at diagnosis)
- Glycemia(at diagnosis)
- Body weight(at diagnosis)
- Resting energy expenditure (REE)(at diagnosis)
- Waist-to-hip ratio(at diagnosis)
- Fat mass(at diagnosis)
- Fat-free mass(at diagnosis)
- Appetite(at diagnosis)
- Insulinemia(at diagnosis)
- Physical activity(at diagnosis)
- Mortality(at diagnosis)
- Physical function(at diagnosis)
- Quality of life(at diagnosis)
- Epithelial permeability(at diagnosis)
- Oral microbiota(at diagnosis)
- GALT function and systemic inflammation(at diagnosis)
研究者
Genton Graf Laurence
Principal Investigator
University Hospital, Geneva