The goal of this clinical trial is to learn whether elénzia CONTROL®, a nutritional supplement, can support weight management in adults who have either never used GLP-1 weight-loss medications or have recently stopped using them. The main question it aims to answer is: Does taking elénzia CONTROL® for 16 weeks help reduce body weight in adults who have never used GLP-1 medications or help prevent weight regain in adults who have recently stopped using them? The study will also look at changes in appetite, sugar cravings, mood, energy, diet, sleep, physical activity, stress, quality of life, and waist circumference. Researchers will compare elénzia CONTROL® with a placebo (a look-alike supplement that does not contain the active ingredients) to see whether elénzia CONTROL® has an effect on weight management. Participants will: Take two capsules of elénzia CONTROL® or placebo once a day, 30 minutes before their largest meal, for 16 weeks. Use a mobile app to record whether they have taken their capsules and complete study questionnaires and assessments. Measure and report their body weight and waist circumference throughout the study.
This study will evaluate elénzia CONTROL®, a multi-ingredient nutritional supplement, in adults who are managing their weight either without previous use of glucagon-like peptide-1 (GLP-1) receptor agonists or following recent discontinuation of GLP-1 therapy. GLP-1 receptor agonists are increasingly used for weight management; however, weight regain following discontinuation is common. Although nutritional and lifestyle support is recommended as part of ongoing weight management, evidence remains limited on specific nutritional strategies for supporting weight maintenance following discontinuation of GLP-1 therapy. For adults who have not previously used GLP-1 medications, nutritional approaches targeting physiological pathways involved in appetite regulation and metabolic function may also offer a means of supporting weight management. The study therefore includes two distinct populations: adults who have never used GLP-1 receptor agonists and adults who have recently discontinued GLP-1 therapy. These populations will be evaluated separately to account for their different weight-management contexts and expected responses. elénzia CONTROL® combines nutritional ingredients selected to target multiple physiological pathways relevant to weight and metabolic health, including pathways involved in appetite regulation, glucose and lipid metabolism, hepatic metabolic function, and thyroid hormone synthesis. Individual components of the formulation have previously been investigated in human studies; however, the complete elénzia CONTROL® formulation has not previously been evaluated in a controlled clinical trial. This study therefore represents the first formal clinical evaluation of the combined formulation in these populations. The primary aim is to determine the effect of elénzia CONTROL® supplementation on body weight over 16 weeks. In participants who have never used GLP-1 receptor agonists, the study will investigate whether supplementation supports weight reduction. In participants who have recently discontinued GLP-1 therapy, it will investigate whether supplementation helps prevent weight regain following discontinuation. The study will also examine broader changes that may be relevant to weight management and participants' overall experience. These include appetite, sugar cravings, mood, energy, dietary intake, sleep, physical activity, stress, weight-related quality of life, and waist circumference. Together, these measures are intended to provide a broader understanding of changes occurring during the study alongside changes in body weight. The study will be conducted remotely, allowing participants to take part from their usual home environment. Study activities will be managed digitally through a mobile application, including informed consent, study questionnaires, self-reported measurements, supplement-use recording, and ongoing study monitoring. This decentralised approach is intended to evaluate the intervention under conditions that reflect its intended real-world use while maintaining the methodological features of a randomised, double-blind, placebo-controlled clinical trial.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
200
elénzia CONTROL® is a commercially available multi-ingredient dietary supplement containing Eriomin® (lemon flavonoids including eriocitrin), bitter melon extract (10:1), SILIPHOS® (silybin-phosphatidylcholine complex), choline bitartrate, chromium picolinate, zinc bisglycinate chelate, iodine, and selenium. The formulation used in the study is identical to the commercially available product but is repackaged into white opaque capsules with study-specific labelling to maintain blinding. Participants will take two capsules orally once daily, 30 minutes before their largest meal, for 16 weeks.
The placebo consists of microcrystalline cellulose (MCC), gluten-free rice bran, Nu-FLOW® (rice-derived silica), and E150a food-grade caramel colour. It is encapsulated in white opaque capsules that are visually identical in colour, size, and shape to the active supplement and packaged with study-specific labelling to maintain blinding. Participants will take two capsules orally once daily, 30 minutes before their largest meal, for 16 weeks.
Elénzia
Redditch, West Midlands, United Kingdom
RECRUITINGPercentage Change in Body Weight From Baseline to Week 16
Percentage change in body weight from baseline to Week 16, calculated from participant-reported body weight measured using home weighing scales. Body weight is recorded through the study app. Analyses will be conducted separately within the GLP-1-naïve and post-GLP-1 cohorts.
Time frame: Baseline to Week 16
Absolute Change in Body Weight From Baseline to Week 16
Absolute change in body weight from baseline to Week 16, calculated from participant-reported body weight measured using home weighing scales and recorded through the study app. Analyses will be conducted separately within the GLP-1-naïve and post-GLP-1 cohorts.
Time frame: Baseline to Week 16
Change in Overall Appetite Score Assessed Using a Digital Visual Analogue Scale (VAS)
Appetite over the previous week is assessed through the study mobile app using four digital Visual Analogue Scale (VAS) items measuring hunger, fullness, satisfaction, and prospective food consumption. Each item is scored from 0 to 100 using a percentage-based slider. Hunger and prospective food consumption are reverse-scored, and the overall appetite score is calculated as the mean of the four items: \[satisfaction + fullness + (100 - hunger) + (100 - prospective food consumption)\] / 4. The overall score ranges from 0 to 100, with higher scores indicating greater satiety/lower appetite and lower scores indicating greater appetite.
Time frame: Baseline and every 2 weeks through Week 16
Change in Sugar Cravings Assessed Using a Digital Visual Analogue Scale (VAS)
Sugar cravings over the previous week are assessed through the study mobile app using a single-item digital Visual Analogue Scale (VAS). Participants rate the strength of their craving for sugary foods using a percentage-based slider ranging from 0 (No craving) to 100 (Extreme craving). Higher scores indicate stronger sugar cravings. Change from baseline will be evaluated over the 16-week study period.
Time frame: Baseline and every 2 weeks through Week 16
Change in Overall Mood Assessed Using a Digital Visual Analogue Scale (VAS)
Overall mood over the previous week is assessed through the study mobile app using a single-item digital Visual Analogue Scale (VAS). Participants rate their overall mood using a percentage-based slider ranging from 0 (Very low) to 100 (Excellent mood). Higher scores indicate better overall mood. Change from baseline will be evaluated over the 16-week study period.
Time frame: Baseline and every 2 weeks through Week 16
Change in Energy Levels Assessed Using a Digital Visual Analogue Scale (VAS)
Perceived energy levels over the previous week are assessed through the study mobile app using a single-item digital Visual Analogue Scale (VAS). Participants rate their energy levels using a percentage-based slider ranging from 0 (Very low) to 100 (Very high). Higher scores indicate higher perceived energy levels. Change from baseline will be evaluated over the 16-week study period.
Time frame: Baseline and every 2 weeks through Week 16
Change in Waist Circumference From Baseline Over 16 Weeks
Change in self-measured waist circumference from baseline. Participants measure their waist circumference using the measuring tape provided for the study and record the measurement through the study app. A negative change indicates a reduction in waist circumference and a positive change indicates an increase.
Time frame: Baseline and every 2 weeks through Week 16
Change in Dietary Intake Assessed Using a Short Food Frequency Questionnaire (FFQ)
Dietary intake over the previous month is assessed through the study mobile app using an 8-item Short Food Frequency Questionnaire (FFQ). Participants report the frequency of consumption of: fruit, vegetables or salads; wholegrain foods; oily fish; red or processed meat; sweets, chocolate, sugary drinks or desserts; dairy products; pastries, crisps or butter/spreads; and alcohol. Each item has five ordered response categories: Never, Rarely (1-2 times/week), Sometimes (3-4 times/week), Often (5-6 times/week), and Daily. Dietary items will be evaluated individually for changes in reported consumption frequency over time; no overall composite score is calculated. The direction of interpretation depends on the individual food category.
Time frame: Baseline, Week 8 and Week 16
Change in Sleep Quality Assessed Using a Short Sleep Quality Questionnaire
Sleep over the previous month is assessed through the study mobile app using a 4-item questionnaire adapted from selected domains of the Pittsburgh Sleep Quality Index (PSQI), covering overall sleep quality, average nightly sleep duration, difficulty falling asleep, and waking during the night or too early. Overall sleep quality is rated using four ordered categories from Very good to Very bad. Average sleep duration is reported numerically from 0 to 12 hours per night. Difficulty falling asleep and night/early waking are each rated using four frequency categories: Never, 1-2 nights/week, 3-4 nights/week, and 5-7 nights/week. Each sleep measure will be evaluated individually for changes over time; no overall composite sleep score is calculated. For overall sleep quality and sleep-disturbance frequency, worse or more frequent responses indicate poorer sleep; sleep duration is interpreted separately as hours of sleep per night.
Time frame: Baseline, Week 8 and Week 16
Change in Physical Activity Assessed Using a Short Physical Activity Questionnaire
Physical activity over the previous month is assessed through the study mobile app using a short questionnaire adapted from the International Physical Activity Questionnaire (IPAQ) framework. Participants report vigorous activity, moderate activity and walking lasting at least 10 minutes at a time. For each activity type, frequency is reported as No activity, 1-4 days, 5-12 days, or more than 12 days in the past month, and usual duration on active days is reported in hours and minutes. Average weekday sitting time is reported separately in hours and minutes. Activity frequency and duration will be used to provide a study-specific estimate of physical activity and will be evaluated separately for vigorous activity, moderate activity and walking; sitting time will be evaluated separately as an indicator of sedentary behaviour. Higher activity frequency and/or duration indicates greater reported physical activity, while higher sitting time indicates greater sedentary behaviour.
Time frame: Baseline, Week 8 and Week 16
Change in Perceived Stress Assessed Using the Perceived Stress Scale-4 (PSS-4)
Perceived stress over the previous month is assessed through the study mobile app using the 4-item Perceived Stress Scale (PSS-4). Each item is scored on a 5-point scale from 0 (Never) to 4 (Very often). The two positively worded items are reverse scored, and the four item scores are summed to produce a total score ranging from 0 to 16. Higher total scores indicate greater perceived stress, while lower scores indicate lower perceived stress. Change in total PSS-4 score from baseline will be evaluated over the 16-week study period.
Time frame: Baseline, Week 8 and Week 16
Change in Weight-Related Quality of Life Assessed Using a 12-Item Questionnaire
Weight-related quality of life over the previous month is assessed through the study mobile app using a 12-item questionnaire adapted from domains of the Impact of Weight on Quality of Life-Lite Clinical Trials Version (IWQOL-Lite-CT). The questionnaire covers physical function (5 items), psychosocial/self-esteem (4 items), and social/public distress (3 items). Each item is rated using five response categories: Never, Rarely, Sometimes, Often, and Daily, scored from 0 to 4, respectively. Item scores are summed to produce a total score ranging from 0 to 48. Higher scores indicate greater weight-related impairment and therefore poorer weight-related quality of life; lower scores indicate less impairment and better weight-related quality of life. Change in total score from baseline will be evaluated over the 16-week study period.
Time frame: Baseline and Week 16
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