Clinical trials: Coffee
Premature Atrial Contractions, Premature Ventricular Contractions
Coffee and Real-time Atrial and Ventricular Ectopy
Atrial fibrillation (AF) and heart failure (HF) are morbid, costly, and incompletely understood diseases that have reached epidemic proportions worldwide.
- Trial name
- CRAVE (NCT03671759)
- Testing
- Start: On Caffeine, Start: Off Caffeine
- Where
- United States
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Effect of Drug
Whole Coffee Cherry Study
There has been increasing interest in natural dietary supplements that may support healthy cognition. Recent studies have demonstrated promising effects of bioactive phytochemicals (e.g., polyphenols) on cardiovascular and…
- Trial name
- WCCE (NCT04986956)
- Testing
- Whole coffee cherry extract
- Where
- United States
- Volunteers
- 323 people, healthy volunteers welcome
- Sponsor
- Auburn University
Respiratory Aspiration of Gastric Content
Does Adding Milk to Coffee Change Gastric Volume?
The intention of this study is to determine wether coffee added milk change gastric volume in comparison with gastric volume after drinking black coffee
- Trial name
- NCT02361632
- Testing
- Coffee with or without milk
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Diet, Food, and Nutrition, Dietary Supplements
Bioavailability of Green Tea and Coffee Polyphenols
There is little information on the dietary intake, absorption, metabolism and bioavailability (degree to which a substance becomes available to the target tissues upon administration) of polyphenols (natural substances present in…
- Trial name
- POBAS (NCT03248115)
- Testing
- Green tea and green coffee extract tablets
- Where
- United Kingdom
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- MRC Human Nutrition Research
Healthy
Coffee, Exercise, and Oxidative Stress
Coffee is one of the most widely consumed beverages. It contains polyphenols (chlorogenic acids) and bioavailability of these bioactive compounds is now somewhat well understood.
- Trial name
- NCT01832701
- Testing
- Coffee
- Where
- Switzerland
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Société des Produits Nestlé (SPN)
Satiation, Gastrointestinal Tolerance
Gastrointestinal Tolerance, Satiation and Sensory Acceptance of Yogurts Containing Dietary Fiber and Coffee Cascara Extract
Coffee processing byproducts, such as coffee cascara (outer skin and pulp of the coffee berry), have potential health promoting properties due to the presence of bioactive compounds.
- Conditions
- Satiation, Gastrointestinal Tolerance, Organoleptic Appreciation
- Trial name
- NCT03539146
- Testing
- Dietary fiber, Control yogurt
- Where
- Spain
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- National Research Council, Spain
Cholelithiases, Nursing Caries
The Effect of Early Mobilization and Fluid Consumption on Bowel Movements After Cholecystectomy
Objective: The aim of this study was to determine the effect of early mobilization with consumption of tea, coffee, and warm water on bowel movements in patients who had laparoscopic cholecystectomy surgery.
- Conditions
- Cholelithiases, Nursing Caries, Perioperative Complication, Bowel Ileus
- Trial name
- NCT05800886
- Testing
- Early mobilization and tea consumption, Early mobilization and coffee consumption, Early mobilization and warm water consumption
- Where
- Turkey (Türkiye)
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Gazi University
Cognitive Performance, Attention
Effects of Caffeine on Chess Performance and Cognitive Function in Professional Chess Players
This study will examine whether caffeine improves cognitive and competitive performance in professional chess players during tournament-style games.
- Conditions
- Cognitive Performance, Attention, Reaction Time, Caffeine
- Trial name
- GRANDMASTER (NCT07641335)
- Testing
- Caffeinated Coffee
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- St. Louis University
Primary Open Angle Glaucoma
The Effects of Caffeinated Coffee on Intraocular Pressure
High intraocular pressure (IOP) is a known risk factor for developing primary open-angle glaucoma (POAG). There is controversy in the literature regarding the degree to which caffeine influences IOP, with some studies reporting…
- Trial name
- NCT01364207
- Testing
- Caffeinated Coffee, Decaffeinated Coffee
- Where
- United States
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- Massachusetts Eye and Ear Infirmary
Overweight
Effects of Caffeinated and Decaffeinated Coffee on Body Weight and Glucose Tolerance
Habitual consumption of coffee may have substantial beneficial effects on glucose metabolism according to recent findings of epidemiological studies in the U.S., Europe, and Japan.
- Trial name
- NCT00305097
- Testing
- Decaffeinated coffee, Caffeinated coffee, No coffee
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Hepatic Steatosis
Effects of Coffee on Hepatic Steatosis Induced by a High Fructose Diet
This study will assess whether coffee consumption protects against fructose-induced hepatic steatosis in healthy humans whether the protective effect of coffee is dependent on it's antioxidant composition
- Trial name
- COLIBRI (NCT00827450)
- Testing
- Ctl, High fructose diet; no coffee, fully torrefied, caffeine-free coffee
- Where
- Switzerland
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- University of Lausanne
Asymptomatic Conditions
Effects of Caffeine and Coffee on Resting Metabolic Rate, Comparing Normal Weight Men to Obese Men
Background. The prevalence of obesity has increased in the last two decades. To maintain body weight energy expenditure (EE) should be equal to energy intake (EI).
- Trial name
- RMR (NCT02751840)
- Testing
- Caffeine, Coffee, Decaffeinated
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Tel Hai College
Periodontal Diseases
Association of Coffee With Periodontal Status
A total of 318 patients applying to Bolu Abant İzzet Baysal University will be included in the study. Based on anamnesis, radiographic examination, and the 2018 classification of periodontal diseases, the participants will be…
- Trial name
- acpc (NCT07166276)
- Testing
- coffee
- Where
- Turkey (Türkiye)
- Volunteers
- 318 people, healthy volunteers welcome
- Sponsor
- Tuğba ŞAHİN
Exercise Performance
Effects of Beetroot Juice and Caffeinated Coffee on Exercise Performance in Recreationally Active Men
The goal of this clinical trial was to evaluate how acute intake of beetroot juice, caffeinated coffee, and their combination affected aerobic and anaerobic exercise performance in healthy recreationally active men.
- Trial name
- NCT07797062
- Testing
- Beetroot juice, Caffeinated Turkish Coffee, Water
- Where
- Turkey (Türkiye)
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Acibadem University
Atherosclerosis
The Effect of Coffee Consumption on the Serum Levels of Leptin, Folic Acid, and Vitamin B12
The effect of coffee and body weight during the last 3 months on the level of leptin, folic acid, and vitamin B12
- Trial name
- NCT04488731
- Testing
- Normal BMI and moderate coffee consumption, Normal BMI and heavy coffee consumption, overweight and moderate coffee consumption
- Where
- Jordan
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Applied Science Private University
Caffeine, Balance; Distorted
The Effect of Turkish Coffee on Postural Control and Hand-eye Coordination in Young Adults
Although the effects of different doses of caffeine on balance have been evaluated in various studies, the effects of low doses of caffeine ingested with Turkish coffee on postural control and hand-eye coordination remain…
- Conditions
- Caffeine, Balance; Distorted, Coordination and Balance Disturbances
- Trial name
- NCT06561113
- Testing
- Caffeine intake
- Where
- Turkey (Türkiye)
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Bezmialem Vakif University
Obesity, Abdominal
Long-term Metabolic Effects of Cafestol
Twelve-week double-blinded, placebo-controlled, parallel intervention study on 40 participants with a large waist circumference who will ingest cafestol or placebo capsules twice daily.
- Trial name
- NCT05672433
- Testing
- Cafestol
- Where
- Denmark
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Excess Intake of Macronutrients, Excess Intake of Micronutrients
Water and Coffee Intervention in Humans
39 healthy subjects without medication (except oral contraceptives) aged 20-70 years are recruited via advertisements or through telephone contacts with individuals that had previously participated in population-based cohort…
- Conditions
- Excess Intake of Macronutrients, Excess Intake of Micronutrients, Vasopressin Low
- Trial name
- NCT06165185
- Testing
- Water, Coffee, Control
- Where
- Sweden
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- Region Skane
Mental Fatigue, Alertness
Effect of Coffeeberry on Mood and Cognitive Performance
The primary aim of this randomised, double-blind, placebo-controlled, cross-over study is to assess the short-term cognitive effects of two beverages containing 100 and 300 mg coffeeberry extract (obtained from the fruit of the…
- Conditions
- Mental Fatigue, Alertness, Mood, Cognition
- Trial name
- NCT04975802
- Testing
- Coffeeberry, Caffeine
- Where
- United Kingdom
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- PepsiCo Global R&D
Healthy
Coffee Consumption, the Gut Microbiome, and the Microbiota-Gut-Brain Axis
The aim of this study is to investigate the potential of coffee to act as a prebiotic to alter gut microbiota and improve mood, memory and cognitive performance.
- Trial name
- NCT05927038
- Testing
- Caffeinated coffee, Decaffeinated coffee
- Where
- Ireland
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- University College Cork