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A Study to See if an Energy Drink With Caffeine and Green Tea Increases Fat Burning When Exercising Fase IV 40 Ejercicio

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El ensayo clínico NCT07434752 está diseñado para estudiar el tratamiento de Ejercicio. Este es un estudio intervencionista de Fase IV. Su estado actual es: aún no recluta. Se prevé iniciar el reclutamiento el 1 de febrero de 2026 hasta completar 40 participantes. Dirigido por RDC Clinical Pty Ltd, se espera que finalice el 1 de diciembre de 2026. Los datos se actualizaron por última vez en ClinicalTrials.gov el 27 de febrero de 2026.
Resumen
The goal of this study is to evaluate the influence of consuming a drink containing a combination of caffeine and green tea extracts on fat oxidation responses at rest, during and after a period of endurance type exercise.
Descripción detallada
This study investigates whether consuming an energy drink containing caffeine and green tea extract before exercise increases fat burning (oxidation) compared with a placebo drink. Healthy, moderately active adults will attend three visits at clinic over 3-5 weeks. The first visit determines each participant's individual exercise intensity that maximises fat use during cycling. At two subsequent visits, participants ...Mostrar más
Título oficial

Influence of Caffeine and Green Tea Extracts Consumption on Basal, Peri- and Post-exercise Fat Oxidation

Condiciones médicas
Ejercicio
Otros ID del estudio
  • GRIFEX
Número del NCT
NCT07434752
Inicio del estudio (real)
2026-02
Última actualización
2026-02-27
Fecha de finalización (estimada)
2026-12
Inscripción (prevista)
40
Tipo de estudio
Intervencionista
FASE
Fase IV
Estado general
Aún no recluta
Palabras clave
metabolism
Objetivo principal
Tratamiento
Método de asignación
Aleatorizado
Modelo de intervención
Diseño cruzado
Enmascaramiento
Cuádruple ciego
Brazos / Intervenciones
Grupo de participantesIntervención/Tratamiento
ExperimentalActive
Two 355 mL cans of "XS Energy + BURN" drink containing caffeine and green tea extract.
Active (Green tea and caffeine)
Two 355 mL cans of "XS Energy + BURN" drink containing caffeine and green tea extract.
OtrosPlacebo
Two 355 mL cans of placebo drink but without the active ingredients (caffeine and green tea extract).
PLACEBO
Two 355 mL cans of placebo drink but without the active ingredients (caffeine and green tea extract).
Resultado primario
Medida de resultadoDescripción de la medidaPeriodo de tiempo
Fat oxidation as measured by indirect calorimetry
Change from baseline to the end of the study period in Fat oxidation as measured by indirect calorimetry (metabolic cart); baseline (pre-drink), post-drink (pre-exercise), time sequence e.g., every 5-min during exercise, 10, 20 and 30-min post-exercise. Change from baseline \& total. Fat oxidation will be measured continuously throughout the exercise and the 30-min post-exercise window, to facilitate total, and any other temporal fat oxidation timepoints.
Baseline to 30 mins post exercise
Resultado secundario
Medida de resultadoDescripción de la medidaPeriodo de tiempo
Carbohydrate oxidation; indirect calorimetry
Change from baseline to the end of the study period in Carbohydrate oxidation; indirect calorimetry; same timing as fat oxidation (baseline (pre-drink), post-drink (pre-exercise), time sequence e.g., every 5-min during exercise, 10, 20 and 30-min post-exercise.). Change from baseline \& total.
Baseline to 30 mins post exercise
Respiratory exchange ratio; indirect calorimetry
Change from baseline to the end of the study period in Respiratory exchange ratio; indirect calorimetry; same timing as fat oxidation (baseline (pre-drink), post-drink (pre-exercise), time sequence e.g., every 5-min during exercise, 10, 20 and 30-min post-exercise). Change from baseline \& total
Baseline to 30 mins post exercise
Exercise efficiency; indirect calorimetry
Change from baseline to the end of the study period in Exercise efficiency; indirect calorimetry; time sequence during exercise e.g., every 5-min. Change from the beginning of exercise \& average
Baseline to 30 mins post exercise
Asistente de participación
Criterios de elegibilidad

Criterios de edad
Adulto
Edad mínima
18 Years
Criterios de sexo
Todos
Admisión de voluntarios sanos
Sí
  • Passing the Exercise and Sport Science Australia adult pre-exercise screening system (APSS) stage 1 & 2 (see appendix 4).
  • Between the ages of 18 and 45,
  • Not sedentary, and not completing more than 150 minutes of low and/or moderate and/or or vigorous intensity endurance exercise a week,
  • Ability to commit to in principle fulfilment of all 3 trial visits,
  • No history of coagulopathy e.g., DVT, stroke,
  • No known heart disease,
  • No known pancreatic insufficiency,
  • No known inflammatory bowel disease, or prior bowel resection or bypass surgery (excluding gastric banding and sleeve),
  • BMI of 22.0 to 34.9 kg/m2,
  • No known allergies to caffeine or green tea extract,
  • No known type I or II diabetes,
  • No uncontrolled concurrent illness,
  • No known current pregnancy or breastfeeding women
  • No current regular consumption of supplements (>2 times a week) or foods and drinks containing caffeine and/or green tea extracts (>2 times per day, weekly).
  • Agree not to consume caffeine for 12-hours prior to the clinic visit.

  • Triggering any of the exclusion screening criteria as outlined below, and in compliment with the Exercise and Sport Science Australia adult pre-exercise screening system (APSS).
  • Under the age of 18 or over the age of 45,
  • Sedentary, or completing over 150 minutes of low and/or moderate and/or or vigorous intensity endurance exercise a week,
  • Inability to commit to in principle fulfilment of all 3 trial visits,
  • History of coagulopathy e.g., DVT, stroke,
  • Known heart disease,
  • Known pancreatic insufficiency,
  • Known inflammatory bowel disease, or prior bowel resection or bypass surgery (excluding gastric banding and sleeve),
  • BMI < 22.0 or > 34.9 kg/m2,
  • Known allergies to caffeine or green tea extract,
  • Known type I or II diabetes,
  • Uncontrolled concurrent illness,
  • Taking GLP-1 agonists, caffeine, or any other medication known to affect metabolism.
  • Known current pregnancy or breastfeeding women.
  • Currently regularly consuming supplements, foods or drinks containing a caffeine and green tea extract blend, or not willing to abstain for the study
RDC Clinical Pty Ltd logoRDC Clinical Pty Ltd
Amway Corp logoAmway Corp
Contactos centrales del estudio
Contacto: Llion Roberts, PhD, +61755528451, [email protected]
1 Centros del estudio en 1 países

Queensland

Griffith University, Gold Coast Campus, Southport, Queensland, 4222, Australia