Effects of an Evening PROtein PrEload on Metabolic Health in Night ShIfT Workers (PROPENSITy)
Recruiting · NCT04869098 · Interventional (participants receive a specific treatment) · Lead sponsor: University of Adelaide
View the official record on ClinicalTrials.gov →Interventions studied
Placebowhey protein
What this trial is about
This study will compare the effects of a whey protein supplement or a placebo consumed before the evening meal on health outcomes in night shift workers.
Who can take part
Age range
35 Years to 65 Years
Sex
Female
Healthy volunteers
Yes - healthy volunteers may be accepted
Phase
Not applicable (e.g. observational or device study)
Study type
Interventional (participants receive a specific treatment)
Inclusion criteria
- Female
- Night shift workers (with a minimum of 6 months in their current shift work schedule)
- 35-65 years
- BMI 28.0-35.0 kg/m2; waist circumference \> 80cm
- Weight stable in the past 6 months
Exclusion criteria
- Those working standard day time hours only, or those who work less than three to four night shifts per fortnight on average
- Personal history and/or diagnosis of: diabetes, cancer, major psychiatric disorders, liver disease, gastro-intestinal surgery or disease (including malabsorption), eating disorders, anaemia, insomnia or cardiovascular disease, and/or any other condition deemed unstable by the study physician
- Taking medications known to alter body composition or metabolism, including (but not limited to): any medication used to lower blood glucose or antidiabetic medications (metformin, sulfonylureas, Glucagon-like peptide-1 (GLP-1) analogues \[i.e. exenatide\], thiazolidinediones or DPP-IV inhibitors \[i.e. 'gliptins'\]), medications affecting weight, appetite or gut motility (i.e. diuretics, domperidone, cisapride, orlistat, phentermine, topiramate)
- Participants who are taking stable doses (i.e. \> 12 months) of androgenic medications (i.e. testosterone) or SSRI's will not be excluded. Personal history/diagnosis (self-reported) of diabetes (type 1 or 2), major psychiatric disorders (schizophrenia, major depressive disorder, bipolar disorder, eating disorders), gastrointestinal disorders, haematological disorders (i.e. thalassemia, iron-deficiency anaemia) insomnia, or any other medical condition, deemed unstable by the study physician
- Pregnant, planning a pregnancy or breastfeeding
- Those who have lost or gained \>5% of body weight in the last 6 months
- Those who consume four or more standard drinks on a single occasion at a 'daily or almost daily' occurrence
- current smokers of cigarettes/marijuana/e-cigarettes/vaporisers
- unable to comprehend the study protocol (i.e. due to English language or cognitive difficulties)
Where it is running
1 location listed.
- University of Adelaide - Adelaide, South Australia, Australia