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.
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.
Study Type
OBSERVATIONAL
Enrollment
24
Geneva University Hospitals
Geneva, Switzerland
RECRUITINGBody weight changes in mice after fecal material transplantation.
Body weight (g)
Time frame: Between days 0 and 30
Differences in fecal microbiota
by 16S rRNA gene amplicon sequencing and functional profiles by metagenomic sequencing between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Body weight
in kilograms between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Waist-to-hip ratio
waist circumference (cm) and hip circumference (cm) between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Fat mass
by bioelectrical impedance analysis (BIA) between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Fat-free mass
by bioelectrical impedance analysis (BIA) between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Muscle mass
surfaces of the paraspinal and abdominal wall muscles at the level of L3-L4 disk space by CT for pancreatic cancer patients
Time frame: at diagnosis
Nutritional intake
by 3-day food diary between cachectic patients non-cachectic patients and healthy volunteers
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Time frame: at diagnosis
Resting energy expenditure (REE)
by indirect calorimetry between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Appetite
by visual analogue scale ranging from 0 to 100 mm between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Appetite
by fasting level of plasma ghrelin between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Appetite
by fasting level of plasma leptin between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Appetite
by fasting level of plasma glucagon-like peptide-1 (GLP-1) between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Appetite
by fasting level of plasma neuropeptide Y between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Appetite
by fasting level of plasma cholecystokinin between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Homeostatic model assessment (HOMA)-score
by fasting glycemia (mmol/l) and fasting insulinemia (mU/ml)) between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Glycemia
by fasting glycemia (mmol/l) between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Insulinemia
by fasting insulinemia (mU/ml) between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Physical function
by handgrip strength between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Physical activity
by the International Physical Activity Questionnaire (IPAQ) between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Quality of life
by the European Organisation for Research and Treatment of Cancer questionnaire (EORTC QLQ-C30) between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Mortality
by tumor progression between cachectic patients non-cachectic patients
Time frame: at diagnosis
Oral microbiota
by 16SrRNA gene amplicon sequencing and metagenomic sequencing between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Epithelial permeability
by fasting levels of plasma zonulin between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Epithelial permeability
by fasting levels of plasma lipopolysaccharide-binding protein between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
Epithelial permeability
by fasting levels of plasma glucagon-like peptide-2 between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
GALT function and systemic inflammation
by fasting plasma level of C-reactive protein (CRP) and cytokines between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
GALT function and systemic inflammation
by peripheral blood T regulatory cells (Tregs) levels and phenotype between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis
GALT function and systemic inflammation
by myeloid derived suppressor cells (MDSC) levels and phenotype between cachectic patients non-cachectic patients and healthy volunteers
Time frame: at diagnosis