Coffee Intake Biomarker Validation and Association With Respiratory Diseases
NCT07391696 · Status: ACTIVE_NOT_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 100
Last updated 2026-02-06
Summary
This proposed project aims to identify and validate biomarkers of coffee exposure in the Singapore population, and assess the association between coffee consumption (via biomarker measurements) and risk of respiratory diseases in a prospective multi-ethnic cohort in Singapore.
Specific Aim 1: To identify and quantify urinary/serum metabolite changes that are associated with coffee consumption in a dose-response intervention study.
Conditions
- Coffee
Interventions
- DIETARY_SUPPLEMENT
-
Coffee A
Week 1: coffee A ≤10 g coffee powder for low dose Week 2: non-coffee consumption (post-consumption kinetics) Week 3: coffee A ≤20 g coffee powder for medium dose Week 4: non-coffee consumption (post-consumption kinetics) Week 5: coffee A ≤40 g coffee powder for high dose Week 6: non-coffee consumption (post-consumption kinetics)
- DIETARY_SUPPLEMENT
-
Coffee B
Week 7: coffee B ≤40 g coffee powder for high dose Week 8: non-coffee consumption (post-consumption kinetics)
- DIETARY_SUPPLEMENT
-
Tea
Week 9: washout Week 10: tea (control) Week 11: non-coffee consumption (post-consumption kinetics)
Sponsors & Collaborators
-
National University of Singapore
lead OTHER
Study Design
- Allocation
- NA
- Purpose
- BASIC_SCIENCE
- Masking
- NONE
- Model
- SINGLE_GROUP
Eligibility
- Min Age
- 21 Years
- Max Age
- 64 Years
- Sex
- ALL
- Healthy Volunteers
- Yes
Timeline & Regulatory
- Start
- 2020-10-01
- Primary Completion
- 2022-12-31
- Completion
- 2026-12-31
Countries
- Singapore
Study Locations
More Related Trials
-
Immune Benefits of Coffee
NCT00860197 ·Status: COMPLETED ·Phase: NA
-
Evaluation of New Beverages Rich in Bioactive Compounds for the Modulation of Energetic Metabolism in Overweight Adults
NCT04016337 ·Status: COMPLETED ·Phase: NA
-
The Effects of e+Shots Energy Beverage on Mental Energy
NCT03850275 ·Status: COMPLETED ·Phase: NA
-
Synthetic and Natural Caffeine on Hemodynamic Parameters in Young, Healthy Volunteers
NCT03495063 ·Status: WITHDRAWN ·Phase: NA
-
A Clinical Study of How Coffee and Tea Affect Enlicitide in Healthy Volunteers (MK-0616-040)
NCT07044479 ·Status: COMPLETED ·Phase: PHASE1
-
Effect of a Single Dose of Cranberry Beverage on Inflammation and Oxidative Stress
NCT01780922 ·Status: COMPLETED ·Phase: NA
-
The Effects of Nitrate, Caffeine, and Cold Exposure on Cardiovascular Function.
NCT06602921 ·Status: COMPLETED ·Phase: NA
-
Effects of High Caffeine Content Coffee on Blood Pressure in Young Adults
NCT04060225 ·Status: TERMINATED ·Phase: NA
-
The Effects of Coffee
NCT00336271 ·Status: COMPLETED
-
Comparison of Plasma Caffeine Concentration After Oral Consumption of Caffeinated Beverages With Varied Bioactive Compounds in Healthy Volunteers
NCT04281758 ·Status: COMPLETED ·Phase: PHASE1
-
The Impact of KETO5 XOGenius Beverage on Markers of Physiological and Neurocognitive Health
NCT06318390 ·Status: COMPLETED ·Phase: NA
-
Impact of Energy Drinks and Panax Ginseng on Heart Rhythm
NCT02572102 ·Status: UNKNOWN ·Phase: NA
-
A 2 Week, Crossover Trial of Dietary Nitrate in Chronic Obstructive Pulmonary Disease
NCT02521532 ·Status: COMPLETED ·Phase: NA
-
Impact of Energy Drinks on Cardiovascular Endpoints
NCT01329679 ·Status: TERMINATED ·Phase: NA
-
Acute Effects of Coffee Beverage on Postprandial Inflammation and Oxidative Stress - A Pilot Study
NCT02174640 ·Status: COMPLETED ·Phase: NA
-
Acute Effects of Fitness Drink Formulas on Energy Expenditure and Fat Metabolism
NCT04455009 ·Status: COMPLETED ·Phase: NA
-
High Tea Consumption on Smoking Related Oxidative Stress
NCT02719860 ·Status: COMPLETED ·Phase: PHASE2
-
Effects of Caffeinated Beverages on Well-being
NCT07357818 ·Status: RECRUITING ·Phase: NA
-
Energy Drink Effects on Performance, Mood, and Cardiovascular Outcomes
NCT05559372 ·Status: COMPLETED ·Phase: NA
-
Effect of Caffeine on Heart Function
NCT02401776 ·Status: COMPLETED ·Phase: NA
-
Coffee, Exercise, and Oxidative Stress
NCT01832701 ·Status: COMPLETED ·Phase: NA
-
Assessing the Effectiveness of an N-of-1 Platform Using Study of Cognitive Enhancers
NCT04056650 ·Status: TERMINATED ·Phase: PHASE4
-
Impact of Grape Powder Consumption on Eye Health and Glycemic Status in Singapore Older Adults
NCT06349304 ·Status: RECRUITING ·Phase: NA
-
Investigating the Acute and Chronic Effects of a Supplement Containing Caffeine, Vitamins, Minerals and Botanical Extracts on Cognition, Sleep and Wellbeing, in Healthy Volunteers
NCT06780774 ·Status: NOT_YET_RECRUITING ·Phase: NA
-
Characterizing the Pharmacokinetic Profile of a Novel Encapsulated Caffeine Beverage and Associated Mood and Physiological Effects
NCT05096780 ·Status: COMPLETED ·Phase: PHASE1