Clinical trial

Evaluation of Food Additive Contributions to Obesity: Pilot Study 1

Recruiting now · Not applicable · 1 countries · Registry ID NCT07437430

Recruiting nowNot applicableInterventional

What this study is about

The effects of food additives on body weight in humans are largely unknown. This is a pilot cross-over double blind RCT in obese adults aimed to test the feasibility of measuring food consumption over 24 hours after one-time administration of K sorbate versus placebo after participants reduce the background consumption of related food additives.

A promising-looking record is not the same as confirmed eligibility. The study team must review the full criteria and current recruitment status.

Basic eligibility

Age20 Years to 80 Years
SexAll
Healthy volunteersNot accepted
ConditionObesity (Disorder)

Full registry criteria

Inclusion Criteria: * Males and females age 20-80; BMI 30-39 kg/m2 inclusive; willingness and ability to follow the proposed study interventions and procedures; informed consent. Exclusion Criteria: * Weight loss of ≥3% in the last 3 months; previous or planned bariatric surgery in the next 1 year; current or planned participation in any structured weight-loss programs; current or recent (within the last 6 months) use of weight-loss-inducing drugs (including GLP-1 agonists); history of frequent intermittent or continuous use of systemic steroids; excessive alcohol consumption; recent or anticipated adjustments to mood, anxiety or anti-psychotic medications; untreated bipolar disorder or attention deficit hyperactivity disorder; eating disorder or any other disorder that may lead to significant weight changes; breastfeeding, pregnancy, planned pregnancy or planned fatherhood in the next 6 months; type 1 diabetes; uncontrolled diabetes mellitus (HbA1C≥9%); diabetes requiring treatment with insulin; aversion to foods that will be served during testing sessions.

Treatments and study arms

Potassium sorbate one-time administration followed by washout then placebo one-time administration

Other

K sorbate 450 mg will be administered with breakfast during testing session 1, followed by a minimum of 2-week washout and then placebo administration with breakfast during testing session 2

Placebo one-time administration followed by washout then potassium sorbate one-time administration

Other

Placebo will be administered with breakfast during testing session 1, followed by a minimum of 2-week washout and then K sorbate 450 mg administration with breakfast during testing session 2

Primary outcomes

Recruitment rateThrough active recruitment period (from the start of the recruitment period to the date the last participant could still be recruited into the study), anticipated to be 6 weeks.
Randomization rateThrough active trial conduction period (from the first participant first study visit to the last conducted study visit in the whole study), anticipated to be 15 weeks.
Retention rate at the study endThrough active trial conduction period (from the first participant first study visit to the last conducted study visit in the whole study), anticipated to be 15 weeks.

Percentage of randomized participants who complete 2 testing sessions after randomization

Adherence to the proposed dietary modifications on 24-hour dietary recalls conducted at or after randomizationFrom randomization till the end of the second testing session for each participant, anticipated average of 2 weeks.
Adverse events after randomizationFrom the time of randomization till study completion for each participant, anticipated average of 3 weeks

Study locations

1 locations were listed when this page was built. The first 40 are shown.

McMaster University Medical Centre🇨🇦 Hamilton, Ontario, Canada
Natalia McInnes, MD, MScContact